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Liu X, Xie F, Xi Q, Wang Y, Wang Y, Li H, Li R, Fan C, Liu J, Wang J. H 3O + assisted hydrogen spillover over Ru-Mo 2Ti 2C 3 for efficient alkaline hydrogen evolution. J Colloid Interface Sci 2025; 694:137738. [PMID: 40311317 DOI: 10.1016/j.jcis.2025.137738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2025] [Revised: 04/23/2025] [Accepted: 04/27/2025] [Indexed: 05/03/2025]
Abstract
The limited supply capacity and high transport kinetic energy barrier of H* hinder the implementation of the alkaline hydrogen evolution reaction (HER). Constructing an H3O+ environment can effectively enhance the concentration and diffusion kinetics of H*, thereby alleviating the associated limiting factors. Here we report a novel Ru nanoclusters supported by 2D Mo2Ti2C3 nanosheets (Ru-Mo2Ti2C3) as an effective HER electrocatalyst in alkaline environments. Results indicate that H* is rapidly generated at the Ru site due to the efficient water dissociation capability of Ru-Mo2Ti2C3, subsequently combining with water molecules to form H3O+. H3O+ then rapidly diffuses to the -O group on MXene, which can release H* and act as active sites for H2 evolution, facilitated by the lower migration energy barrier of H3O+. This strategy simultaneously enhances both the supply and transfer of H*, facilitating synergistic catalysis between Ru and MXene. Consequently, Ru-Mo2Ti2C3 exhibits an overpotential of 47 mV at 10 mA cm-2, lower than that observed in acidic media (108 mV). This paper introduces a new approach for the development of catalytic materials aimed at achieving efficient and pH-universal electrochemical H2 evolution.
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Affiliation(s)
- Xiaojing Liu
- Shanxi Key Laboratory of Complex Air Pollution Control and Carbon Reduction, College of Environmental and Ecology, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Coal Science and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Fangxia Xie
- Shanxi Key Laboratory of Complex Air Pollution Control and Carbon Reduction, College of Environmental and Ecology, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Coal Science and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China.
| | - Qing Xi
- Shanxi Key Laboratory of Complex Air Pollution Control and Carbon Reduction, College of Environmental and Ecology, Taiyuan University of Technology, Taiyuan 030024, PR China; Center of Shanxi Engineering Research for Coal Mine Intelligent Equipment, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Yawen Wang
- Key Laboratory of Coal Science and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Yunfang Wang
- Key Laboratory of Coal Science and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Houfen Li
- Shanxi Key Laboratory of Complex Air Pollution Control and Carbon Reduction, College of Environmental and Ecology, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Rui Li
- Shanxi Key Laboratory of Complex Air Pollution Control and Carbon Reduction, College of Environmental and Ecology, Taiyuan University of Technology, Taiyuan 030024, PR China; Tianji Coal Chemical Industry Group Co., Ltd, Changzhi 047507, PR China
| | - Caimei Fan
- Shanxi Key Laboratory of Complex Air Pollution Control and Carbon Reduction, College of Environmental and Ecology, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Coal Science and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Jianxin Liu
- Shanxi Key Laboratory of Complex Air Pollution Control and Carbon Reduction, College of Environmental and Ecology, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Coal Science and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Jiancheng Wang
- Shanxi Key Laboratory of Complex Air Pollution Control and Carbon Reduction, College of Environmental and Ecology, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Coal Science and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China.
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2
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Shuai C, Hu S, Wang K, Pan G, Peng S, Mi S, Zhong Q. Bionic menisci with integrated material-structure-functionality for gouty arthritis. Colloids Surf B Biointerfaces 2025; 252:114672. [PMID: 40179642 DOI: 10.1016/j.colsurfb.2025.114672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2025] [Revised: 03/27/2025] [Accepted: 03/29/2025] [Indexed: 04/05/2025]
Abstract
Gouty arthritis may cause meniscal damage, necessitating surgery for meniscus replacement. However, the meniscus remains at risk of urate crystal accumulation and oxidative stress post-surgery. To tackle this challenge, we developed tri-level bionic menisci that achieve an integrated material-structure-functionality design. Its gradient network mimics natural structures, providing biomechanical adaptation and functioning as a porous catalyst carrier to load multifunctional nanozymes to eliminate excess uric acid and oxyradicals. Specifically, we utilized 3D printing to incorporate Pt-CeO2 nanozymes within the meniscus scaffold and designed a bionic structure driven by biomechanical data of the articular cavity. The Pt-CeO2 demonstrated significant catalytic efficacy in promoting the oxidation of uric acid while concurrently scavenging reactive oxygen and nitrogen species. DFT+U calculations revealed the synergistic catalytic mechanism at Pt-Ov-Ce sites. We elucidated the catalytic therapeutic mechanism of the bionic menisci. Furthermore, we developed a regulatory model capable of modulating intra-articular uric acid concentration to accommodate the varied requirements of different patients. These findings underscore the potential of the bionic menisci in personalized treatment for gouty arthritis.
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Affiliation(s)
- Cijun Shuai
- Jiangxi Province Key Laboratory of Additive Manufacturing of Implantable Medical Device, Jiangxi University of Science and Technology, Nanchang 330013, China; State Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China; Shenzhen Institute of Information Technology, School of Sino-German Robotics, Shenzhen 518172, China
| | - Shun Hu
- Jiangxi Province Key Laboratory of Additive Manufacturing of Implantable Medical Device, Jiangxi University of Science and Technology, Nanchang 330013, China
| | - Kangdong Wang
- Jiangxi Province Key Laboratory of Additive Manufacturing of Implantable Medical Device, Jiangxi University of Science and Technology, Nanchang 330013, China
| | - Gao Pan
- Jiangxi Province Key Laboratory of Additive Manufacturing of Implantable Medical Device, Jiangxi University of Science and Technology, Nanchang 330013, China; State Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
| | - Shuping Peng
- The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan 410078, China; NHC Key Laboratory of Carcinogenesis, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China; School of energy and machinery engineering, Jiangxi University of Science and Technology, Nanchang 330013, China
| | - Shengli Mi
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Qi Zhong
- Jiangxi Province Key Laboratory of Additive Manufacturing of Implantable Medical Device, Jiangxi University of Science and Technology, Nanchang 330013, China.
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3
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Tang X, Ge S, Lv Y, Sun G, Wang Z, Xie J, Peng M, Xu Y, Zhang J, Yao B, He Q, Guo Y, Zhan W, Wang L, Zhou L, Xu B, Dai S, Guo Y, Ma D. Blocking the Operando Formation of Single-Atom Spectators by Interfacial Engineering. Angew Chem Int Ed Engl 2025; 64:e202505507. [PMID: 40178203 DOI: 10.1002/anie.202505507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2025] [Revised: 03/29/2025] [Accepted: 04/02/2025] [Indexed: 04/05/2025]
Abstract
Aside from activity and selectivity, catalyst stability is a key focus in heterogeneous catalysis research. Although sintering of metal species has been considered the primary cause for deactivation of metal catalysts, our study reveals that the loss of activity at low reaction temperatures in the CeO2-supported Pt (Pt/CeO2) catalyst in complete propane oxidation is due to the dispersion of Pt ensemble sites (nanoclusters) and their subsequent operando conversion into Pt single atoms under reaction conditions. These Pt single-atom species exhibit low reactivity and act as spectators in the low-temperature reaction region. To address this issue, we engineered the surface of CeO2 by introducing NbOx, which does not directly interact with Pt. Instead, NbOx blocks the strong binding sites for Pt on CeO2, thereby preventing Pt redispersion/fragmentation and preserving reactive Pt ensembles. This strategy led to a remarkable 37-fold increase in the reaction rate compared to the Pt/CeO2 catalyst. Our findings emphasize the importance of suppressing the formation of noble metal single-atom spectators through innovative surface engineering strategy. These mechanistic insights not only advance the understanding of the materials science of Pt/CeO2 but also extend to critical technological fields such as energy conversion systems and environmental remediation technologies.
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Affiliation(s)
- Xuan Tang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P.R. China
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P.R. China
- Beijing National Laboratory for Molecular Sciences, New Cornerstone Science Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R. China
| | - Shasha Ge
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P.R. China
| | - Yao Lv
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P.R. China
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P.R. China
| | - Geng Sun
- Chongqing Key Laboratory of Chemical Theory and Mechanism, College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, P.R. China
| | - Zhaohua Wang
- Beijing National Laboratory for Molecular Sciences, New Cornerstone Science Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R. China
| | - Junzhong Xie
- Beijing National Laboratory for Molecular Sciences, New Cornerstone Science Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R. China
| | - Mi Peng
- Beijing National Laboratory for Molecular Sciences, New Cornerstone Science Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R. China
| | - Yao Xu
- Beijing National Laboratory for Molecular Sciences, New Cornerstone Science Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R. China
| | - Jie Zhang
- Beijing National Laboratory for Molecular Sciences, New Cornerstone Science Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R. China
| | - Bingqing Yao
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P.R. China
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Qian He
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Yanglong Guo
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P.R. China
| | - Wangcheng Zhan
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P.R. China
| | - Li Wang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P.R. China
| | - Lihui Zhou
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P.R. China
| | - Bingjun Xu
- Beijing National Laboratory for Molecular Sciences, New Cornerstone Science Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R. China
| | - Sheng Dai
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P.R. China
| | - Yun Guo
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P.R. China
| | - Ding Ma
- Beijing National Laboratory for Molecular Sciences, New Cornerstone Science Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R. China
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4
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Kim G, Choung S, Hwang JE, Choi Y, Kim S, Shin D, Han JW, Lee H. Highly Durable Rh Single Atom Catalyst Modulated by Surface Defects on Fe-Ce Oxide Solid Solution. Angew Chem Int Ed Engl 2025; 64:e202421218. [PMID: 39777837 DOI: 10.1002/anie.202421218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2024] [Revised: 12/27/2024] [Accepted: 01/07/2025] [Indexed: 01/11/2025]
Abstract
Forming defect sites on catalyst supports and immobilizing precious metal atoms at these sites offers an efficient approach for preparing single-atom catalysts. In this study, we employed an Fe-Ce oxide solid solution (FC), which has surface oxygen that reduces more readily than that of ceria, to anchor Rh single atoms (Rh1). When utilized in the selective catalytic reduction of NO with CO (CO-SCR), Rh1/FC reduced at 500 °C-characterized by less oxidic Rh state induced by an oxygen-deficient coordination-exhibited superior activity and durability compared to Rh1/ceria and Rh1/FC reduced at 300 °C. This Rh single-atom structure was sustained after 100 hours of CO-SCR at 400 °C. Reaction intermediates formed on the catalyst surface were analyzed using in situ diffuse reflectance Fourier transform infrared spectroscopy (DRIFTS) under NO and CO flow conditions. Additionally, the catalyst structure and the CO-SCR reaction mechanism were investigated using density functional theory (DFT). While Rh atoms located near surface Fe sites were found to be thermodynamically most stable, both NO and CO preferentially adsorbed on Rh sites. Fe plays a role in stabilizing Rh sites and facilitating oxygen transfer. This work provides valuable insights into the design of highly active and durable single-atom catalysts.
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Affiliation(s)
- Gunjoo Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, South Korea
| | - Seokhyun Choung
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, South Korea
| | - Jae-Eon Hwang
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, South Korea
| | - Yunji Choi
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, South Korea
| | - Seungeun Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, South Korea
| | - Dongjae Shin
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, South Korea
| | - Jeong Woo Han
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, South Korea
| | - Hyunjoo Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, South Korea
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5
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Eliasson H, Lothian A, Surin I, Mitchell S, Pérez-Ramírez J, Erni R. Precise Size Determination of Supported Catalyst Nanoparticles via Generative AI and Scanning Transmission Electron Microscopy. SMALL METHODS 2025; 9:e2401108. [PMID: 39359026 PMCID: PMC11926506 DOI: 10.1002/smtd.202401108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2024] [Revised: 09/04/2024] [Indexed: 10/04/2024]
Abstract
Transmission electron microscopy (TEM) plays a crucial role in heterogeneous catalysis for assessing the size distribution of supported metal nanoparticles. Typically, nanoparticle size is quantified by measuring the diameter under the assumption of spherical geometry, a simplification that limits the precision needed for advancing synthesis-structure-performance relationships. Currently, there is a lack of techniques that can reliably extract more meaningful information from atomically resolved TEM images, like nuclearity or geometry. Here, cycle-consistent generative adversarial networks (CycleGANs) are explored to bridge experimental and simulated images, directly linking experimental observations with information from their underlying atomic structure. Using the versatile Pt/CeO2 (Pt particles centered ≈2 nm) catalyst synthesized by impregnation, large datasets of experimental scanning transmission electron micrographs and physical image simulations are created to train a CycleGAN. A subsequent size-estimation network is developed to determine the nuclearity of imaged nanoparticles, providing plausible estimates for ≈70% of experimentally observed particles. This automatic approach enables precise size determination of supported nanoparticle-based catalysts overcoming crystal orientation limitations of conventional techniques, promising high accuracy with sufficient training data. Tools like this are envisioned to be of great use in designing and characterizing catalytic materials with improved atomic precision.
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Affiliation(s)
- Henrik Eliasson
- Electron Microscopy Center, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf, 8600, Switzerland
| | - Angus Lothian
- Computer Vision Laboratory, Department of Electrical Engineering, Linköping University, Linköping, 581 83, Sweden
| | - Ivan Surin
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Sharon Mitchell
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Javier Pérez-Ramírez
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Rolf Erni
- Electron Microscopy Center, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf, 8600, Switzerland
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6
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Guo M, Meng Q, Gao ML, Zheng L, Li Q, Jiao L, Jiang HL. Single-Atom Pt Loaded on MOF-Derived Porous TiO 2 with Maxim-Ized Pt Atom Utilization for Selective Hydrogenation of Halonitro-benzene. Angew Chem Int Ed Engl 2025; 64:e202418964. [PMID: 39470988 DOI: 10.1002/anie.202418964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2024] [Revised: 10/29/2024] [Accepted: 10/29/2024] [Indexed: 11/01/2024]
Abstract
The location control of single atoms relative to supports is challenging for single-atom catalysts, leading to a large proportion of inaccessible single atoms buried under supports. Herein, a "sequential thermal transition" strategy is developed to afford single-atom Pt preferentially dispersed on the outer surface of TiO2. Specifically, a Ti-MOF confining Pt nanoparticles is converted to PtNPs and TiO2 composite coated by carbon (PtNPs&TiO2@C-800) at 800 °C in N2. Subsequent thermal-driven atomization of PtNPs at 600 °C in air produce single-atom Pt decorated TiO2 (Pt1/TiO2-600). The resulting Pt1/TiO2-600 exhibits superior p-chloroaniline (p-CAN) selectivity (99 %) to PtNPs/TiO2-400 (45 %) and much better activity than Pt1@TiO2-600 with randomly dispersed Pt1 both outside and inside TiO2 in the hydrogenation of p-chloronitrobenzene (p-CNB). Mechanism investigations reveal that Pt1/TiO2-600 achieves 100 % accessibility of Pt1 and preferably adsorbs the -NO2 group of p-CNB while weakly adsorbs -Cl group of p-CNB and p-CAN, promoting catalytic activity and selectivity.
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Affiliation(s)
- Mingchun Guo
- Hefei National Research Center for Physical Sciences at the Microscale, College of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Qiangqiang Meng
- Hefei National Research Center for Physical Sciences at the Microscale, College of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Ming-Liang Gao
- Hefei National Research Center for Physical Sciences at the Microscale, College of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Qunxiang Li
- Hefei National Research Center for Physical Sciences at the Microscale, College of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Long Jiao
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Hai-Long Jiang
- Hefei National Research Center for Physical Sciences at the Microscale, College of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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7
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Wen J, Chen J, Nie R, Li Z, Zhang W, Cao J, Xie P, Zhang Q, Ning P, Hao J. Asymmetric Pt 1O 4-O v Dual Active Sites Induced by NbO x Clusters Promotes CO Synergistical Oxidation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2025; 59:2295-2305. [PMID: 39847515 DOI: 10.1021/acs.est.4c11141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2025]
Abstract
Pt/CeO2 single-atom catalysts are attractive materials for CO oxidation but normally show poor activity below 150 °C mainly due to the unicity of the originally symmetric Pt1O4 structure. In this work, a highly active and stable Pt1/CeO2 single-site catalyst with only 0.1 wt % Pt loading, achieving a satisfied complete conversion of CO at 150 °C, can be obtained through fabricating asymmetric Pt1O4-oxygen vacancies (Ov) dual-active sites induced by well-dispersed NbOx clusters. Specifically, the formation of new Ce-O-Nb interactions weakened the strength of the original Pt-O-Ce bond, thus transferring the originally near-perfect square-planar Pt1O4 into the distorted square-planar one, along with forming abundant Ov around the Pt site. Hence, the promoted CO activation on the asymmetric Pt1O4 structure and the facilitated dissociation of the O2 on the neighboring Ov site synergistically improved the CO catalytic oxidation performance. The fabrication of such asymmetric Pt1O4-Ov double-active sites was also active for the oxidation of other typical hydrocarbons pollutants such as C7H8 and C3H6 from exhaust gases, shedding light on engineering high-efficiency Pt-based oxidation catalysts for low-temperature environmental catalysis.
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Affiliation(s)
- Junjie Wen
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Jianjun Chen
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Rongbing Nie
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Zhiyu Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Weihao Zhang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Jinyan Cao
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Pengfei Xie
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
| | - Qiulin Zhang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Ping Ning
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Jiming Hao
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
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8
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Xu H, Lin D, Shi J, Lv Z, Zhao X, Ning L, Xiao J, Cui L, Zhang J, Yuan J, Feng X, Qin Y, Zhang J. Constructing SiO 2-Supported Atomically Dispersed Platinum Catalysts with Single-Atom and Atomic Cluster Dual Sites to Tame Hydrogenation Performance. JACS AU 2025; 5:250-260. [PMID: 39886572 PMCID: PMC11775698 DOI: 10.1021/jacsau.4c00924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2024] [Revised: 11/25/2024] [Accepted: 12/12/2024] [Indexed: 02/01/2025]
Abstract
Construction and optimization of stable atomically dispersed metal sites on SiO2 surfaces are important yet challenging topics. In this work, we developed the amino group-assisted atomic layer deposition strategy to deposit the atomically dispersed Pt on SiO2 support for the first time, in which the particle size and ratio of Pt entities from single atom (Pt1) to atomic cluster (Pt n ) and nanoparticle (Pt p ) on the SiO2 surface were well modulated. We demonstrated the importance of dual-site synergy for optimizing the activity of single-atom catalysts. The Pt1+n /SiO2-N catalysts with the coexistence of Pt1 and Pt n showed excellent activity and optimized selectivity (99% for haloanilines) in halonitrobenzenes hydrogenation, while Pt1/SiO2-N catalysts were almost inactive in the reaction. Mechanism investigation indicates that the Pt n site is beneficial for H2 dissociation, and the Pt1 site is energetically favorable for adsorption of the nitro group to complete the selective hydrogenation, which synergistically contributes to the optimized catalytic performances. This study provides a new strategy for constructing atomically dispersed metal species over the SiO2 support and demonstrates the significance of the synergy of dual active sites for enhancing the catalytic efficiency.
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Affiliation(s)
- Hao Xu
- School
of Chemistry and Chemical Engineering, Northwestern
Polytechnical University, Xi’an 710072, China
- Interdisciplinary
Research Center of Biology and Catalysis, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Dong Lin
- Max
Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis
FUNCAT, Cardiff Catalysis Institute, School
of Chemistry, Cardiff University, Cardiff CF103AT, U.K.
| | - Jie Shi
- Qingyuan
Innovation Laboratory, Quanzhou 362801, China
| | - Zhengxing Lv
- Shanghai
Synchrotron Radiation Facility, Shanghai
Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Xinshuo Zhao
- Interdisciplinary
Research Center of Biology and Catalysis, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Linge Ning
- Interdisciplinary
Research Center of Biology and Catalysis, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Jiao Xiao
- Interdisciplinary
Research Center of Biology and Catalysis, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Lin Cui
- Interdisciplinary
Research Center of Biology and Catalysis, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Jian Zhang
- School
of Chemistry and Chemical Engineering, Northwestern
Polytechnical University, Xi’an 710072, China
- State Key
Laboratory of Solidification Processing and School of Materials Science
and Engineering, Northwestern Polytechnical
University, Xi’an 710072, China
| | - Juncong Yuan
- State
Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Xiang Feng
- State
Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China
| | - Yong Qin
- Interdisciplinary
Research Center of Biology and Catalysis, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- State
Key Laboratory of Coal Conversion, Institute
of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Jiankang Zhang
- Interdisciplinary
Research Center of Biology and Catalysis, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
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9
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Lan T, Yalavarthi R, Shen Y, Gao M, Wang F, Hu Q, Hu P, Beladi-Mousavi M, Chen X, Hu X, Yang H, Cortés E, Zhang D. Polyoxometalates-Mediated Selectivity in Pt Single-Atoms on Ceria for Environmental Catalysis. Angew Chem Int Ed Engl 2025; 64:e202415786. [PMID: 39324519 DOI: 10.1002/anie.202415786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2024] [Revised: 09/16/2024] [Accepted: 09/25/2024] [Indexed: 09/27/2024]
Abstract
Optimizing the reactivity and selectivity of single-atom catalysts (SACs) remains a crucial yet challenging issue in heterogeneous catalysis. This study demonstrates selective catalysis facilitated by a polyoxometalates-mediated electronic interaction (PMEI) in a Pt single-atom catalyst supported on CeO2 modified with Keggin-type phosphotungstate acid (HPW), labeled as Pt1/CeO2-HPW. The PMEI effect originates from the unique arrangement of isolated Pt atoms and HPW clusters on the CeO2 support. Electrons are transferred from the ceria support to the electrophilic tungsten in HPW clusters, and subsequently, Pt atoms donate electrons to the now electron-deficient ceria. This phenomenon enhances the positive charge of Pt atoms, moderating O2 activation and limiting lattice oxygen mobility compared to the conventional Pt1/CeO2 catalyst. The resulting electronic structure of Pt combined with the strong and local acidic environment of HPW on Pt1/CeO2-HPW leads to improved efficiency and N2 selectivity in the degradation of NH3 and NO, as well as increased CO2 yield when inputting volatile organic compounds. This study sheds the light on the design of SACs with balanced reactivity and selectivity for environmental catalysis.
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Affiliation(s)
- Tianwei Lan
- International Joint Laboratory of Catalytic Chemistry, State Key Laboratory of Advanced Special Steel, Innovation Institute of Carbon Neutrality, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, People's Republic of China
| | - Rambabu Yalavarthi
- Nanoinstitut München, Fakultät für Physik, Ludwig-Maximilians-Universität München, München, 80539, Germany
| | - Yongjie Shen
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, 001-0021, Japan
| | - Min Gao
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, 001-0021, Japan
| | - Fuli Wang
- International Joint Laboratory of Catalytic Chemistry, State Key Laboratory of Advanced Special Steel, Innovation Institute of Carbon Neutrality, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, People's Republic of China
| | - Qingmin Hu
- International Joint Laboratory of Catalytic Chemistry, State Key Laboratory of Advanced Special Steel, Innovation Institute of Carbon Neutrality, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, People's Republic of China
| | - Pengfei Hu
- International Joint Laboratory of Catalytic Chemistry, State Key Laboratory of Advanced Special Steel, Innovation Institute of Carbon Neutrality, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, People's Republic of China
| | - Mohsen Beladi-Mousavi
- Nanoinstitut München, Fakultät für Physik, Ludwig-Maximilians-Universität München, München, 80539, Germany
| | - Xin Chen
- International Joint Laboratory of Catalytic Chemistry, State Key Laboratory of Advanced Special Steel, Innovation Institute of Carbon Neutrality, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, People's Republic of China
| | - Xiaonan Hu
- International Joint Laboratory of Catalytic Chemistry, State Key Laboratory of Advanced Special Steel, Innovation Institute of Carbon Neutrality, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, People's Republic of China
| | - Huiqian Yang
- International Joint Laboratory of Catalytic Chemistry, State Key Laboratory of Advanced Special Steel, Innovation Institute of Carbon Neutrality, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, People's Republic of China
| | - Emiliano Cortés
- Nanoinstitut München, Fakultät für Physik, Ludwig-Maximilians-Universität München, München, 80539, Germany
| | - Dengsong Zhang
- International Joint Laboratory of Catalytic Chemistry, State Key Laboratory of Advanced Special Steel, Innovation Institute of Carbon Neutrality, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, People's Republic of China
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10
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Chen W, Bao M, Meng F, Ma B, Feng L, Zhang X, Qiu Z, Gao S, Zhong R, Xi S, Hai X, Lu J, Zou R. Designer topological-single-atom catalysts with site-specific selectivity. Nat Commun 2025; 16:574. [PMID: 39794333 PMCID: PMC11724105 DOI: 10.1038/s41467-025-55838-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Accepted: 12/26/2024] [Indexed: 01/13/2025] Open
Abstract
Designing catalysts with well-defined, identical sites that achieve site-specific selectivity, and activity remains a significant challenge. In this work, we introduce a design principle of topological-single-atom catalysts (T-SACs) guided by density functional theory (DFT) and Ab initio molecular dynamics (AIMD) calculations, where metal single atoms are arranged in asymmetric configurations that electronic shield topologically misorients d orbitals, minimizing unwanted interactions between reactants and the support surface. Mn1/CeO2 catalysts, synthesized via a charge-transfer-driven approach, demonstrate superior catalytic activity and selectivity for NOx removal. A life-cycle assessment (LCA) reveals that Mn1/CeO2 significantly reduces environmental impact compared to traditional V-W-Ti catalysts. Through in-situ spectroscopic characterizations combined with DFT calculations, we elucidate detailed reaction mechanisms. This study establishes T-SACs as a promising class of catalysts, offering a systematic framework to address catalytic challenges by defining site characteristics. The concept highlights their potential for advancing selective catalytic processes and promoting sustainable technologies.
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Affiliation(s)
- Weibin Chen
- School of Materials Science and Engineering, Peking University, Beijing, P.R. China
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Menghui Bao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, P.R. China
| | - Fanqi Meng
- School of Materials Science and Engineering, Peking University, Beijing, P.R. China
| | - Bingbing Ma
- School of Materials Science and Engineering, Peking University, Beijing, P.R. China
| | - Long Feng
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, P.R. China
| | - Xuan Zhang
- School of Materials Science and Engineering, Peking University, Beijing, P.R. China
| | - Zanlin Qiu
- School of Materials Science and Engineering, Peking University, Beijing, P.R. China
| | - Song Gao
- School of Materials Science and Engineering, Peking University, Beijing, P.R. China
| | - Ruiqin Zhong
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, P.R. China
| | - Shibo Xi
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Xiao Hai
- School of Materials Science and Engineering, Peking University, Beijing, P.R. China.
| | - Jiong Lu
- Department of Chemistry, National University of Singapore, Singapore, Singapore.
| | - Ruqiang Zou
- School of Materials Science and Engineering, Peking University, Beijing, P.R. China.
- School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, P.R. China.
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11
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Du T, Zhou Q, Lu W, Cui H, Liu J, Lin X, Yu L, Zhang X, Yang F. Electric Field-Induced Synergetic Enhancement of Local Hydroxyl Concentration and Photogenerated Carrier Density for Removal of CO ads in Electrocatalytic Formic Acid Oxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2025; 21:e2407510. [PMID: 39665380 DOI: 10.1002/smll.202407510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2024] [Revised: 10/21/2024] [Indexed: 12/13/2024]
Abstract
Direct formic acid fuel cell (DFAFC) is an efficient power generation device, due to its high energy density, low fuel crossover and low emission. However, the anodic reaction of DFAFC, formic acid oxidation (FAOR), inevitably proceeds through an indirect pathway, adsorbing carbon monoxide intermediate (COads), resulting in a rapid decline of activity for FAOR. Therefore, effectively removing COads is the key to the development of DFAFC. In this work, Pd/CeO2 catalyst is synthesized by in situ growth of Pd nanoparticles on the hollow CeO2. Due to the difference of work function between Pd and CeO2, a built-in electric field from Pd side to CeO2 side is formed, which induces a synergistic enhancement of the photogenerated carrier density and the local high hydroxyl concentration at the Pd/CeO2 interface, thus promoting the oxidative removal of COads and significantly improving the stability of FAOR. Therefore, in photo-assisted electrocatalytic FAOR, Pd/CeO2 not only possessed high mass activity (4161.72 mA mg-1 Pd), and its mass activity decreases by only 20.1% after 40000 s chronoamperometry test, which is superior to most Pd-based catalysts. This work provides a new strategy for efficient removal of COads in FAOR through constructing built-in electric fields, which promotes the DFAFC application.
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Affiliation(s)
- Tingting Du
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Material Science, Northwest University, Xi'an, 710127, China
| | - Qiangqiang Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Material Science, Northwest University, Xi'an, 710127, China
| | - Wenhao Lu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Material Science, Northwest University, Xi'an, 710127, China
| | - Hao Cui
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Material Science, Northwest University, Xi'an, 710127, China
| | - Jiaqing Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Material Science, Northwest University, Xi'an, 710127, China
| | - Xing Lin
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Material Science, Northwest University, Xi'an, 710127, China
| | - Le Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Material Science, Northwest University, Xi'an, 710127, China
| | - Xin Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Material Science, Northwest University, Xi'an, 710127, China
| | - Fengchun Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Material Science, Northwest University, Xi'an, 710127, China
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12
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Xiao M, Han D, Yang X, Yu J, Shi B, Guo Y, Yu X, Ge M. Active Interfacial Perimeter in Pt/CeO 2 Catalysts with Embedding Structure for Water-Tolerant Toluene Combustion. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:22808-22817. [PMID: 39652092 DOI: 10.1021/acs.est.4c06977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2024]
Abstract
Supported Pt catalysts are often subjected to severe deactivation under the conditions of high temperature and water vapor in catalytic oxidation; thus, the superior stability and water-resistant ability of catalysts have great significance for the effective degradation of volatile organic compounds (VOCs). Herein, we constructed a Pt/CeO2-N catalyst with an active interfacial perimeter, in which Pt species were partially embedded in the defective CeO2-N support to prevent the sintering. A significant charge transfer between Pt species and ceria in the embedding structure occurred via the Pt-CeO2 interface, which induced the formation of a Pt4+-Ov-Ce3+ interfacial structure. Experimental research and theoretical calculations demonstrated that the active Pt4+-Ov-Ce3+ interface promoted the activation and migration of lattice oxygen, thus facilitating the participation of oxygen species in toluene oxidation. Consequently, Pt/CeO2-N showed excellent catalytic performance for toluene degradation. In situ DRIFTS and DFT calculation proved that the Pt4+-Ov-Ce3+ interfacial sites served as the intrinsic active center in the dissociation of H2O to generate ·OH, which contributed to the formation of benzaldehyde, thus remarkably improving the water-resistant property. This study provided a facile strategy for fabricating the interfacial embedding structure to enhance the catalytic activity and water tolerance for eliminating VOCs in practical application.
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Affiliation(s)
- Menglan Xiao
- Flavors and Fragrance Engineering and Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou 450046, P. R. China
- Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Dawei Han
- Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Xueqin Yang
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, P. R. China
| | - Jing Yu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Bo Shi
- College of Chemistry and Materials Science, Hebei Key Laboratory of Inorganic Nano-materials, Hebei Normal University, Shijiazhuang 050024, P. R. China
| | - Yucong Guo
- Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Xiaolin Yu
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Maofa Ge
- Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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13
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Li Y, Peng CK, Sun Y, Sui LDN, Chang YC, Chen SY, Zhou Y, Lin YG, Lee JM. Operando elucidation of hydrogen production mechanisms on sub-nanometric high-entropy metallenes. Nat Commun 2024; 15:10222. [PMID: 39587090 PMCID: PMC11589590 DOI: 10.1038/s41467-024-54589-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 11/15/2024] [Indexed: 11/27/2024] Open
Abstract
Precise morphological control and identification of structure-property relationships pose formidable challenges for high-entropy alloys, severely limiting their rational design and application in multistep and tandem reactions. Herein, we report the synthesis of sub-nanometric high-entropy metallenes with up to eight metallic elements via a one-pot wet-chemical approach. The PdRhMoFeMn high-entropy metallenes exhibit high electrocatalytic hydrogen evolution performances with 6, 23, and 26 mV overpotentials at -10 mA cm-2 in acidic, neutral, and alkaline media, respectively, and high stability. The electrochemical measurements, theoretical simulations, and operando X-ray absorption spectroscopy reveal the actual active sites along with their dynamics and synergistic mechanisms in various electrolytes. Specially, Mn sites have strong binding affinity to hydroxyl groups, which enhances the water dissociation process at Pd sites with low energy barrier while Rh sites with optimal hydrogen adsorption free energy accelerate hydride coupling, thereby markedly boosting its intrinsic ability for hydrogen production.
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Affiliation(s)
- Yinghao Li
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Chun-Kuo Peng
- Department of Material Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300093, Taiwan
- Scientific Research Division, National Synchrotron Radiation Research Center, Hsinchu, 300092, Taiwan
| | - Yuntong Sun
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore.
| | - L D Nicole Sui
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
- Environmental Chemistry and Materials Centre, Nanyang Environment & Water Research Institute (NEWRI), Interdisciplinary Graduate Programme, Nanyang Technological University, Singapore, 637141, Singapore
| | - Yu-Chung Chang
- Scientific Research Division, National Synchrotron Radiation Research Center, Hsinchu, 300092, Taiwan
| | - San-Yuan Chen
- Department of Material Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300093, Taiwan
| | - Yingtang Zhou
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316004, China.
| | - Yan-Gu Lin
- Department of Material Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300093, Taiwan.
- Scientific Research Division, National Synchrotron Radiation Research Center, Hsinchu, 300092, Taiwan.
| | - Jong-Min Lee
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore.
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14
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Lv Y, Li A, Ye J, Wang H, Hu P, Wang KW, Guo Y, Tang X, Dai S. Exploring the Facet-Dependent Structural Evolution of Pt/CeO 2 Catalysts Induced by Typical Pretreatments for CO Oxidation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:43556-43564. [PMID: 39132739 DOI: 10.1021/acsami.4c07578] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Atomic-scale insights into the interactions between metals and supports play a crucial role in optimizing catalyst design, understanding catalytic mechanisms, and enhancing chemical conversion processes. The effects of oxide support on the dynamic behavior of supported metal species during pretreatments or reactions have been attracting a lot of attention; however, very less systematic integrations are carried out experimentally using real catalysts. In this study, we here utilized facet-controlled CeO2 as examples to explore their influence on the supported Pt species (1.0 wt %) during the reducing and oxidizing pretreatments that are typically applied in heterogeneous catalysts. By employing a combination of microscopy, spectroscopy, and first-principles calculations, it is demonstrated that the exposed crystal facets of CeO2 govern the evolution behavior of supported Pt species under different environmental conditions. This leads to distinct local coordinations and charge states of the Pt species, which directly influence the catalytic reactivity and can be leveraged to control the catalytic performance for CO oxidation reactions.
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Affiliation(s)
- Yao Lv
- Key Laboratory for Advanced Materials, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Aoran Li
- Key Laboratory for Advanced Materials, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jiajie Ye
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Haifeng Wang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Peijun Hu
- School of Chemistry and Chemical Engineering, The Queen's University of Belfast, BelfastBT9 5AG, U.K
| | - Kuan-Wen Wang
- Institute of Materials Science and Engineering, National Central University, Taoyuan 320, Taiwan
| | - Yun Guo
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Xuan Tang
- Key Laboratory for Advanced Materials, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Sheng Dai
- Key Laboratory for Advanced Materials, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
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15
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Yan H, Lei H, Qin X, Liu JC, Cai L, Hu S, Xiao Z, Peng F, Wang WW, Jin Z, Yi X, Zheng A, Ma C, Jia CJ, Zeng J. Facet-Dependent Diversity of Pt-O Coordination for Pt 1/CeO 2 Catalysts Achieved by Oriented Atomic Deposition. Angew Chem Int Ed Engl 2024:e202411264. [PMID: 39136438 DOI: 10.1002/anie.202411264] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Indexed: 10/17/2024]
Abstract
The surface chemistry of CeO2 is dictated by the well-defined facets, which exert great influence on the supported metal species and the catalytic performance. Here we report Pt1/CeO2 catalysts exhibiting specific structures of Pt-O coordination on different facets by using adequate preparation methods. The simple impregnation method results in Pt-O3 coordination on the predominantly exposed {111} facets, while the photo-deposition method achieves oriented atomic deposition for Pt-O4 coordination into the "nano-pocket" structure of {100} facets at the top. Compared to the impregnated Pt1/CeO2 catalyst showing normal redox properties and low-temperature activity for CO oxidation, the photo-deposited Pt1/CeO2 exhibits uncustomary strong metal-support interaction and extraordinary high-temperature stability. The preparation methods dictate the facet-dependent diversity of Pt-O coordination, resulting in the further activity-selectivity trade-off. By applying specific preparation routes, our work provides an example of disentangling the effects of support facets and coordination environments for nano-catalysts.
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Grants
- 2021YFA1500500, 2019YFA0405600, 2021YFA1501103 National Key Research and Development Program of China
- YSBR-051 CAS Project for Young Scientists in Basic Research
- 22221003, 22250007, 22361162655, 21771117, 22075166, 22302185 National Natural Science Foundation of China
- 21925204, 22225110 National Science Fund for Distinguished Young Scholars
- XDB0450000 Fundamental Research Funds for the Central Universities, Strategic Priority Research Program of the Chinese Academy of Sciences
- 2022HSC-CIP004 Collaborative Innovation Program of Hefei Science Center, CAS
- YLU-DNL Fund 2022012 the Joint Fund of the Yulin University and the Dalian National Laboratory for Clean Energy
- 123GJHZ2022101GC International Partnership Program of Chinese Academy of Sciences
- 2308085QB53 the Young Scholars Program of Shandong University, Anhui Natural Science Foundation for Young Scholars
- 2022QNRC001 Young Elite Scientists Sponsorship Program by CAST
- 2021M691753 China Postdoctoral Science Foundation
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Affiliation(s)
- Han Yan
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Haofan Lei
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Xuetao Qin
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Jin-Cheng Liu
- Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin, 300350, P. R. China
| | - Lihua Cai
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Sunpei Hu
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Zizhen Xiao
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Fenglin Peng
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Wei-Wei Wang
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Zhao Jin
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Xianfeng Yi
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, P. R. China
| | - Anmin Zheng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, P. R. China
- Interdisciplinary Institute of NMR and Molecular Sciences, School of Chemistry and Chemical Engineering, Hubei Province for Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Chao Ma
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Chun-Jiang Jia
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Jie Zeng
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
- School of Chemistry & Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui, 243002, P. R. China
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16
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Liang H, Xian Y, Wang X. Preparation and application of single-atom nanozymes in oncology: a review. Front Chem 2024; 12:1442689. [PMID: 39189019 PMCID: PMC11345252 DOI: 10.3389/fchem.2024.1442689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2024] [Accepted: 08/01/2024] [Indexed: 08/28/2024] Open
Abstract
Single-atom nanozymes (SAzymes) represent a cutting-edge advancement in nanomaterials, merging the high catalytic efficiency of natural enzymes with the benefits of atomic economy. Traditionally, natural enzymes exhibit high specificity and efficiency, but their stability are limited by environmental conditions and production costs. Here we show that SAzymes, with their large specific surface area and high atomic utilization, achieve superior catalytic activity. However, their high dispersibility poses stability challenges. Our review focuses on recent structural and preparative advancements aimed at enhancing the catalytic specificity and stability of SAzymes. Compared to previous nanozymes, SAzymes demonstrate significantly improved performance in biomedical applications, particularly in tumor medicine. This progress positions SAzymes as a promising tool for future cancer treatment strategies, integrating the robustness of inorganic materials with the specificity of biological systems. The development and application of SAzymes could revolutionize the field of biocatalysis, offering a stable, cost-effective alternative to natural enzymes.
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Affiliation(s)
- Huiyuan Liang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, China
| | - Yijie Xian
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, China
| | - Xujing Wang
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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17
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Zhang T, Zheng P, Gao J, Liu X, Ji Y, Tian J, Zou Y, Sun Z, Hu Q, Chen G, Chen W, Liu X, Zhong Z, Xu G, Zhu T, Su F. Simultaneously activating molecular oxygen and surface lattice oxygen on Pt/TiO 2 for low-temperature CO oxidation. Nat Commun 2024; 15:6827. [PMID: 39122681 PMCID: PMC11316131 DOI: 10.1038/s41467-024-50790-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 07/19/2024] [Indexed: 08/12/2024] Open
Abstract
Developing high-performance Pt-based catalysts with low Pt loading is crucial but challenging for CO oxidation at temperatures below 100 °C. Herein, we report a Pt-based catalyst with only a 0.15 wt% Pt loading, which consists of Pt-Ti intermetallic single-atom alloy (ISAA) and Pt nanoparticles (NP) co-supported on a defective TiO2 support, achieving a record high turnover frequency of 11.59 s-1 at 80 °C and complete conversion of CO at 120 °C. This is because the coexistence of Pt-Ti ISAA and Pt NP significantly alleviates the competitive adsorption of CO and O2, enhancing the activation of O2. Furthermore, Pt single atom sites are stabilized by Pt-Ti ISAA, resulting in distortion of the TiO2 lattice within Pt-Ti ISAA. This distortion activates the neighboring surface lattice oxygen, allowing for the simultaneous occurrence of the Mars-van Krevelen and Langmuir-Hinshelwood reaction paths at low temperatures.
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Affiliation(s)
- Tengfei Zhang
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Peng Zheng
- Key Laboratory on Resources Chemicals and Materials of Ministry of Education, Shenyang University of Chemical Technology, Shenyang, China
| | - Jiajian Gao
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), Jurong Island, Singapore
| | - Xiaolong Liu
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China.
| | - Yongjun Ji
- School of Light Industry, Beijing Technology and Business University, Beijing, China.
| | - Junbo Tian
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Yang Zou
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Zhiyi Sun
- Energy & Catalysis Center, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Qiao Hu
- School of Chemistry and Chemical Engineering, in situ Center for Physical Sciences, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Guokang Chen
- School of Chemistry and Chemical Engineering, in situ Center for Physical Sciences, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Wenxing Chen
- Energy & Catalysis Center, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China.
| | - Xi Liu
- School of Chemistry and Chemical Engineering, in situ Center for Physical Sciences, Shanghai Jiao Tong University, Shanghai, People's Republic of China.
| | - Ziyi Zhong
- Department of Chemical Engineering, and Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion (MATEC), Guangdong Technion Israel Institute of Technology (GTIIT), Shantou, China
| | - Guangwen Xu
- Key Laboratory on Resources Chemicals and Materials of Ministry of Education, Shenyang University of Chemical Technology, Shenyang, China
- Institute of Industrial Chemistry and Energy Technology, Shenyang University of Chemical Technology, Shenyang, China
| | - Tingyu Zhu
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China.
| | - Fabing Su
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China.
- Institute of Industrial Chemistry and Energy Technology, Shenyang University of Chemical Technology, Shenyang, China.
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18
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Qiu Y, Wu Y, Wei X, Luo X, Jiang W, Zheng L, Gu W, Zhu C, Yamauchi Y. Improvement in ORR Durability of Fe Single-Atom Carbon Catalysts Hybridized with CeO 2 Nanozyme. NANO LETTERS 2024; 24:9034-9041. [PMID: 38990087 DOI: 10.1021/acs.nanolett.4c02178] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
FeNC catalysts are considered one of the most promising alternatives to platinum group metals for the oxygen reduction reaction (ORR). Despite the extensive research on improving ORR activity, the undesirable durability of FeNC is still a critical issue for its practical application. Herein, inspired by the antioxidant mechanism of natural enzymes, CeO2 nanozymes featuring catalase-like and superoxide dismutase-like activities were coupled with FeNC to mitigate the attack of reactive oxygen species (ROS) for improving durability. Benefiting from the multienzyme-like activities of CeO2, ROS generated from FeNC is instantaneously eliminated to alleviate the corrosion of carbon and demetallization of metal sites. Consequently, FeNC/CeO2 exhibits better ORR durability with a decay of only 5 mV compared to FeNC (18 mV) in neutral electrolyte after 10k cycles. The FeNC/CeO2-based zinc-air battery also shows minimal voltage decay over 140 h in galvanostatic discharge-charge cycling tests, outperforming FeNC and commercial Pt/C.
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Affiliation(s)
- Yiwei Qiu
- State Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, People's Republic of China
| | - Yu Wu
- State Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, People's Republic of China
| | - Xiaoqian Wei
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo Shinjuku, Tokyo, 169-8555, Japan
- Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Xin Luo
- State Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, People's Republic of China
| | - Wenxuan Jiang
- State Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, People's Republic of China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics Department, Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Wenling Gu
- State Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, People's Republic of China
| | - Chengzhou Zhu
- State Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, People's Republic of China
- College of Material Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, People's Republic of China
| | - Yusuke Yamauchi
- Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia
- Department of Plant & Environmental New Resources, Kyung Hee University, 1732 Deogyeong-daero Giheung-gu, Yongin-si, Gyeonggi-do 17104, South Korea
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19
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Liu L, Xu Q, dos Anjos Cunha L, Xin H, Head-Gordon M, Qian J. Real-Space Pseudopotential Method for the Calculation of Third-Row Elements X-ray Photoelectron Spectroscopic Signatures. J Chem Theory Comput 2024; 20:6134-6143. [PMID: 38970155 PMCID: PMC11270745 DOI: 10.1021/acs.jctc.4c00535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 06/18/2024] [Accepted: 06/20/2024] [Indexed: 07/08/2024]
Abstract
X-ray photoelectron spectroscopy (XPS) is a powerful characterization technique that unveils subtle chemical environment differences via core-electron binding energy (CEBE) analysis. We extend the development of real-space pseudopotential methods to calculating 1s, 2s, and 2p3/2 CEBEs of third-row elements (S, P, and Si) within the framework of Kohn-Sham density-functional theory (KS-DFT). The new approach systematically prevents variational collapse and simplifies core-excited orbital selection within dense energy level distributions. However, careful error cancellation analysis is required to achieve accuracy comparable to all-electron methods and experiments. Combined with real-space KS-DFT implementation, this development enables large-scale simulations with both Dirichlet boundary conditions and periodic boundary conditions.
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Affiliation(s)
- Liping Liu
- Department
of Chemical Engineering, Virginia Polytechnic
Institute and State University, Blacksburg, Virginia 24060, United States
| | - Qiang Xu
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Leonardo dos Anjos Cunha
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- Department
of Chemistry, University of California,
Berkeley, Berkeley, California 94720, United States
| | - Hongliang Xin
- Department
of Chemical Engineering, Virginia Polytechnic
Institute and State University, Blacksburg, Virginia 24060, United States
| | - Martin Head-Gordon
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- Department
of Chemistry, University of California,
Berkeley, Berkeley, California 94720, United States
| | - Jin Qian
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
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20
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Xie S, Lu Y, Ye K, Tan W, Cao S, Wang C, Kim D, Zhang X, Loukusa J, Li Y, Zhang Y, Ma L, Ehrlich SN, Marinkovic NS, Deng J, Flytzani-Stephanopoulos M, Liu F. Enhancing the Carbon Monoxide Oxidation Performance through Surface Defect Enrichment of Ceria-Based Supports for Platinum Catalyst. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:12731-12741. [PMID: 38958431 PMCID: PMC11256741 DOI: 10.1021/acs.est.4c03078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 06/18/2024] [Indexed: 07/04/2024]
Abstract
Effective synthesis and application of single-atom catalysts on supports lacking enough defects remain a significant challenge in environmental catalysis. Herein, we present a universal defect-enrichment strategy to increase the surface defects of CeO2-based supports through H2 reduction pretreatment. The Pt catalysts supported by defective CeO2-based supports, including CeO2, CeZrOx, and CeO2/Al2O3 (CA), exhibit much higher Pt dispersion and CO oxidation activity upon reduction activation compared to their counterpart catalysts without defect enrichment. Specifically, Pt is present as embedded single atoms on the CA support with enriched surface defects (CA-HD) based on which the highly active catalyst showing embedded Pt clusters (PtC) with the bottom layer of Pt atoms substituting the Ce cations in the CeO2 surface lattice can be obtained through reduction activation. Embedded PtC can better facilitate CO adsorption and promote O2 activation at PtC-CeO2 interfaces, thereby contributing to the superior low-temperature CO oxidation activity of the Pt/CA-HD catalyst after activation.
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Affiliation(s)
- Shaohua Xie
- Department
of Civil, Environmental, and Construction Engineering, Catalysis Cluster
for Renewable Energy and Chemical Transformations (REACT), NanoScience
Technology Center (NSTC), University of
Central Florida, Orlando, Florida 32816, United States
| | - Yue Lu
- Beijing
Key Laboratory of Microstructure and Properties of Solids, Faculty
of Materials and Manufacturing, Beijing
University of Technology, Beijing 100124, People’s
Republic of China
| | - Kailong Ye
- Department
of Civil, Environmental, and Construction Engineering, Catalysis Cluster
for Renewable Energy and Chemical Transformations (REACT), NanoScience
Technology Center (NSTC), University of
Central Florida, Orlando, Florida 32816, United States
| | - Wei Tan
- Department
of Civil, Environmental, and Construction Engineering, Catalysis Cluster
for Renewable Energy and Chemical Transformations (REACT), NanoScience
Technology Center (NSTC), University of
Central Florida, Orlando, Florida 32816, United States
- State
Key Laboratory of Pollution Control and Resource Reuse, School of
the Environment, Jiangsu Key Laboratory of Vehicle Emissions Control,
School of Chemistry and Chemical Engineering, Center of Modern Analysis, Nanjing University, Nanjing, Jiangsu 210023, People’s Republic
of China
| | - Sufeng Cao
- Department
of Chemical and Biological Engineering, Tufts University, Medford, Massachusetts 02155, United States
- Aramco Boston
Research Center, Cambridge, Massachusetts 02139, United States
| | - Chunying Wang
- Center
for Excellence in Regional Atmospheric Environment, Institute of Urban
Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, People’s
Republic of China
| | - Daekun Kim
- Department
of Civil, Environmental, and Construction Engineering, Catalysis Cluster
for Renewable Energy and Chemical Transformations (REACT), NanoScience
Technology Center (NSTC), University of
Central Florida, Orlando, Florida 32816, United States
| | - Xing Zhang
- Department
of Civil, Environmental, and Construction Engineering, Catalysis Cluster
for Renewable Energy and Chemical Transformations (REACT), NanoScience
Technology Center (NSTC), University of
Central Florida, Orlando, Florida 32816, United States
| | - Jeremia Loukusa
- Department
of Civil, Environmental, and Construction Engineering, Catalysis Cluster
for Renewable Energy and Chemical Transformations (REACT), NanoScience
Technology Center (NSTC), University of
Central Florida, Orlando, Florida 32816, United States
| | - Yaobin Li
- Center
for Excellence in Regional Atmospheric Environment, Institute of Urban
Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, People’s
Republic of China
| | - Yan Zhang
- Center
for Excellence in Regional Atmospheric Environment, Institute of Urban
Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, People’s
Republic of China
| | - Lu Ma
- National
Synchrotron Light Source II (NSLS-II), Brookhaven
National Laboratory, Upton, New York 11973, United States
| | - Steven N. Ehrlich
- National
Synchrotron Light Source II (NSLS-II), Brookhaven
National Laboratory, Upton, New York 11973, United States
| | - Nebojsa S. Marinkovic
- Department
of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Jiguang Deng
- Beijing
Key Laboratory for Green Catalysis and Separation, Key Laboratory
of Beijing on Regional Air Pollution Control, Key Laboratory of Advanced
Functional Materials, Ministry of Education of China, Faculty of Environment
and Life, Beijing University of Technology, Beijing 100124, People’s Republic of China
| | | | - Fudong Liu
- Department
of Chemical and Environmental Engineering, University of California, Riverside, Riverside, California 92521, United States
- Department
of Civil, Environmental, and Construction Engineering, Catalysis Cluster
for Renewable Energy and Chemical Transformations (REACT), NanoScience
Technology Center (NSTC), University of
Central Florida, Orlando, Florida 32816, United States
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21
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Wang W, Li C, Zhou C, Xiao X, Li F, Huang NY, Li L, Gu M, Xu Q. Enrooted-Type Metal-Support Interaction Boosting Oxygen Evolution Reaction in Acidic Media. Angew Chem Int Ed Engl 2024; 63:e202406947. [PMID: 38650436 DOI: 10.1002/anie.202406947] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 04/22/2024] [Indexed: 04/25/2024]
Abstract
Supported metal catalysts with appropriate metal-support interactions (MSIs) hold a great promise for heterogeneous catalysis. However, ensuring tight immobilization of metal clusters/nanoparticles on the support while maximizing the exposure of surface active sites remains a huge challenge. Herein, we report an Ir/WO3 catalyst with a new enrooted-type MSI in which Ir clusters are, unprecedentedly, atomically enrooted into the WO3 lattice. The enrooted Ir atoms decrease the electron density of the constructed interface compared to the adhered (root-free) type, thereby achieving appropriate adsorption toward oxygen intermediates, ultimately leading to high activity and stability for oxygen evolution in acidic media. Importantly, this work provides a new enrooted-type supported metal catalyst, which endows suitable MSI and maximizes the exposure of surface active sites in contrast to the conventional adhered, embedded, and encapsulated types.
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Affiliation(s)
- Wenjuan Wang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 150001, Harbin, China
- Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), Southern University of Science and Technology, 518055, Shenzhen, China
- Department of Chemistry and SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL), Southern University of Science and Technology, 518055, Shenzhen, China
- Department of Materials Science and Engineering, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Cheng Li
- Department of Materials Science and Engineering, Southern University of Science and Technology, 518055, Shenzhen, China
- School of Physics and Astronomy, University of Birmingham, B15 2TT, Birmingham, UK
| | - Chuan Zhou
- Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), Southern University of Science and Technology, 518055, Shenzhen, China
- Department of Materials Science and Engineering, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Xin Xiao
- Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), Southern University of Science and Technology, 518055, Shenzhen, China
- Department of Chemistry and SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL), Southern University of Science and Technology, 518055, Shenzhen, China
| | - Fayan Li
- Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), Southern University of Science and Technology, 518055, Shenzhen, China
- Department of Chemistry and SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL), Southern University of Science and Technology, 518055, Shenzhen, China
| | - Ning-Yu Huang
- Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), Southern University of Science and Technology, 518055, Shenzhen, China
- Department of Chemistry and SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL), Southern University of Science and Technology, 518055, Shenzhen, China
| | - Lei Li
- Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), Southern University of Science and Technology, 518055, Shenzhen, China
- Department of Materials Science and Engineering, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Meng Gu
- Department of Materials Science and Engineering, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Qiang Xu
- Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), Southern University of Science and Technology, 518055, Shenzhen, China
- Department of Chemistry and SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL), Southern University of Science and Technology, 518055, Shenzhen, China
- Department of Materials Science and Engineering, Southern University of Science and Technology, 518055, Shenzhen, China
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Yoshida, Sakyo-ku, 606-8501, Kyoto, Japan
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22
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Li Y, Guo L, Du M, Tian C, Zhao G, Liu Z, Liang Z, Hou K, Chen J, Liu X, Jiang L, Nan B, Li L. Unraveling distinct effects between CuO x and PtCu alloy sites in Pt-Cu bimetallic catalysts for CO oxidation at different temperatures. Nat Commun 2024; 15:5598. [PMID: 38961110 PMCID: PMC11222431 DOI: 10.1038/s41467-024-49968-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 06/26/2024] [Indexed: 07/05/2024] Open
Abstract
In situ exploration of the dynamic structure evolution of catalysts plays a key role in revealing reaction mechanisms and designing efficient catalysts. In this work, PtCu/MgO catalysts, synthesized via the co-impregnation method, outperforms monometallic Pt/MgO and Cu/MgO. Utilizing quasi/in-situ characterization techniques, it is discovered that there is an obvious structural evolution over PtCu/MgO from PtxCuyOz oxide cluster to PtCu alloy with surface CuOx species under different redox and CO oxidation reaction conditions. The synergistic effect between PtCu alloy and CuOx species enables good CO oxidation activity through the regulation of CO adsorption and O2 dissociation. At low temperatures, CO oxidation is predominantly catalyzed by surface CuOx species via the Mars-van Krevelen mechanism, in which CuOx can provide abundant active oxygen species. As the reaction temperature increases, both surface CuOx species and PtCu alloy collaborate to activate gaseous oxygen, facilitating CO oxidation mainly through the Langmuir-Hinshelwood mechanism.
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Affiliation(s)
- Yunan Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, China
- Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Lingling Guo
- Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
| | - Meng Du
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, China
- Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
| | - Chen Tian
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Gui Zhao
- School of Chemistry and Chemical, In-situ Centre for Physical Sciences, Shanghai Jiao Tong University, Shanghai, China
| | - Zhengwu Liu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zhenye Liang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Kunming Hou
- Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
| | - Junxiang Chen
- Division of China, TILON Group Technology Limited, Shanghai, China
| | - Xi Liu
- School of Chemistry and Chemical, In-situ Centre for Physical Sciences, Shanghai Jiao Tong University, Shanghai, China
| | - Luozhen Jiang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, China.
- Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China.
| | - Bing Nan
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, China.
- Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China.
| | - Lina Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, China.
- Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China.
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23
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Liu D, Wu R, Wang X, Ye R, Hu F, Chen X, Wang T, Han B, Lu ZH, Feng G, Zhang R. Catalytic CO Oxidation on the Cu +-O v-Ce 3+ Interface Constructed by an Electrospinning Method for Enhanced CO Adsorption at Low Temperature. Inorg Chem 2024; 63:4312-4327. [PMID: 38354197 DOI: 10.1021/acs.inorgchem.3c04453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
It is crucial to eliminate CO emissions using non-noble catalysts. Cu-based catalysts have been widely applied in CO oxidation, but their activity and stability at low temperatures are still challenging. This study reports the preparation and application of an efficient copper-doped ceria electrospun fiber catalyst prepared by a facile electrospinning method. The obtained 10Cu-Ce fiber catalyst achieved complete CO oxidation at a temperature as low as 90 °C. However, a reference 10Cu/Ce catalyst prepared by the impregnation method needed 110 °C to achieve complete CO oxidation under identical reaction conditions. Asymmetric oxygen vacancies (ASOV) at the interface between copper and cerium were constructed, to effectively absorb gas molecules involved in the reaction, leading to the enhanced oxidation of CO. The exceptional ability of the 10Cu-Ce catalyst to adsorb CO is attributed to its unique structure and surface interaction phase Cu+-Ov-Ce3+, as demonstrated by a series of characterizations and DFT calculations. This novel approach of using electrospinning offers a promising technique for developing low-temperature and non-noble metal-based catalysts.
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Affiliation(s)
- Dong Liu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, P.R. China
| | - Rundong Wu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, P.R. China
| | - Xianjie Wang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, P.R. China
| | - Runping Ye
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, P.R. China
| | - Feiyang Hu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, P.R. China
| | - Xiaohan Chen
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, P.R. China
| | - Tongtong Wang
- College of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing 314001, P. R. China
| | - Bingying Han
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, P.R. China
| | - Zhang-Hui Lu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P.R. China
| | - Gang Feng
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, P.R. China
| | - Rongbin Zhang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, P.R. China
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24
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Feng R, Li D, Yang H, Li C, Zhao Y, Waterhouse GIN, Shang L, Zhang T. Epitaxial Ultrathin Pt Atomic Layers on CrN Nanoparticle Catalysts. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2309251. [PMID: 37897297 DOI: 10.1002/adma.202309251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/27/2023] [Indexed: 10/30/2023]
Abstract
The construction of platinum (Pt) atomic layers is an effective strategy to improve the utilization efficiency of Pt atoms in electrocatalysis, thus is important for reducing the capital costs of a wide range of energy storage and conversion devices. However, the substrates used to grow Pt atomic layers are largely limited to noble metals and their alloys, which is not conducive to reducing catalyst costs. Herein, low-cost chromium nitride (CrN) is utilized as a support for the loading of epitaxial ultrathin Pt atomic layers via a simple thermal ammonolysis method. Owing to the strong anchoring and electronic regulation of Pt atomic layers by CrN, the obtained Pt atomic layers catalyst (containing electron-deficient Pt sites) exhibits excellent activity and endurance for the formic acid oxidation reaction, with a mass activity of 5.17 A mgPt -1 that is 13.6 times higher than that of commercial Pt/C catalyst. This novel strategy demonstrates that CrN can replace noble metals as a low-cost substrate for constructing Pt atomic layers catalysts.
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Affiliation(s)
- Ruixue Feng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Dong Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hongzhou Yang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- Beijing Advanced Innovation Center for Materials Genome Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Chengyu Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yunxuan Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | | | - Lu Shang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Tierui Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
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25
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Xie S, Tan W, Xu Y, Wang C, Feng Y, Ye K, Ma L, Ehrlich SN, Li Y, Zhang Y, Dong L, Deng J, Liu F. Pd-CeO 2 catalyst facilely derived from one-pot generated Pd@Ce-BTC for low temperature CO oxidation. JOURNAL OF HAZARDOUS MATERIALS 2024; 466:133632. [PMID: 38309164 DOI: 10.1016/j.jhazmat.2024.133632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 01/14/2024] [Accepted: 01/25/2024] [Indexed: 02/05/2024]
Abstract
Due to the capacity to offer abundant catalytic sites within porous solids featuring high surface areas, metal-organic frameworks (MOFs) and their derivatives have garnered considerable attention as prospective catalysts in environmental catalysis. To promote the industrial application of MOFs, there is an urgent need for an effective and environmental-friendly preparation approach. Breaking through the limitation of the traditional two-step preparation method that Pd was introduced to the already prepared Ce-BTC (Pd/Ce-BTC, BTC = 1, 3, 5 benzenetricarboxylate), in this work, we present a novel one-pot solvothermal method for synthesizing the Pd material supported by Ce-BTC (Pd@Ce-BTC). After pyrolysis in N2 flow or air flow, Pd-CeO2 catalysts derived from Pd@Ce-BTC exhibited much higher CO oxidation activity than those from Pd/Ce-BTC. Moreover, Pd/Ce-BTC and Pd@Ce-BTC pyrolyzed in N2 flow (Pd/Ce-BTC-N and Pd@Ce-BTC-N) could better catalyze the oxidation of CO than Pd/Ce-BTC and Pd@Ce-BTC pyrolyzed in air flow (Pd/Ce-BTC-A and Pd@Ce-BTC-A). Further characterizations revealed that the abundant surface Ce3+ species, rich surface adsorbed oxygen species and superior redox properties were the main reasons for the superior CO oxidation activity of Pd@Ce-BTC-N.
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Affiliation(s)
- Shaohua Xie
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL 32816, United States
| | - Wei Tan
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL 32816, United States; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Jiangsu Key Laboratory of Vehicle Emissions Control, School of Chemistry and Chemical Engineering, Center of Modern Analysis, Nanjing University, Nanjing 210023, China
| | - Yuhan Xu
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL 32816, United States; Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Chunying Wang
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yuan Feng
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Kailong Ye
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL 32816, United States
| | - Lu Ma
- National Synchrotron Light Source II (NSLS-II), Brookhaven National Laboratory, Upton, NY 11973, United States
| | - Steven N Ehrlich
- National Synchrotron Light Source II (NSLS-II), Brookhaven National Laboratory, Upton, NY 11973, United States
| | - Yaobin Li
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yan Zhang
- Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Lin Dong
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Jiangsu Key Laboratory of Vehicle Emissions Control, School of Chemistry and Chemical Engineering, Center of Modern Analysis, Nanjing University, Nanjing 210023, China
| | - Jiguang Deng
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Key Laboratory of Advanced Functional Materials, Education Ministry of China, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
| | - Fudong Liu
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL 32816, United States; Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92521, United States.
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26
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Yu J, Qin X, Yang Y, Lv M, Yin P, Wang L, Ren Z, Song B, Li Q, Zheng L, Hong S, Xing X, Ma D, Wei M, Duan X. Highly Stable Pt/CeO 2 Catalyst with Embedding Structure toward Water-Gas Shift Reaction. J Am Chem Soc 2024; 146:1071-1080. [PMID: 38157430 DOI: 10.1021/jacs.3c12061] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Strong metal-support interaction (SMSI) has been extensively studied in heterogeneous catalysis because of its significance in stabilizing active metals and tuning catalytic performance, but the origin of SMSI is not fully revealed. Herein, by using Pt/CeO2 as a model catalyst, we report an embedding structure at the interface between Pt and (110) plane of CeO2, where Pt clusters (∼1.6 nm) are embedded into the lattice of ceria within 3-4 atomic layers. In contrast, this phenomenon is absent in the CeO2(100) support. This unique geometric structure, as an effective motivator, triggers more significant electron transfer from Pt clusters to CeO2(110) support accompanied by the formation of interfacial structure (Ptδ+-Ov-Ce3+), which plays a crucial role in stabilizing Pt nanoclusters. A comprehensive investigation based on experimental studies and theoretical calculations substantiates that the interfacial sites serve as the intrinsic active center toward water-gas shift reaction (WGSR), featuring a moderate strength CO activation adsorption and largely decreased energy barrier of H2O dissociation, accounting for the prominent catalytic activity of Pt/CeO2(110) (a reaction rate of 15.76 molCO gPt-1 h-1 and a turnover frequency value of 2.19 s-1 at 250 °C). In addition, the Pt/CeO2(110) catalyst shows a prominent durability within a 120 h time-on-stream test, far outperforming the Pt/CeO2(100) one, which demonstrates the advantages of this embedding structure for improving catalyst stability.
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Affiliation(s)
- Jun Yu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
- Quzhou Institute for Innovation in Resource Chemical Engineering, Quzhou 324000, P. R. China
| | - Xuetao Qin
- College of Chemistry and Molecular Engineering and College of Engineering, BIC-ESAT, Peking University, Beijing 100871, P. R. China
| | - Yusen Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
- Quzhou Institute for Innovation in Resource Chemical Engineering, Quzhou 324000, P. R. China
| | - Mingxin Lv
- Beijing Advanced Innovation Center for Materials Genome Engineering, Department of Physical Chemistry, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Pan Yin
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Lei Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
- Quzhou Institute for Innovation in Resource Chemical Engineering, Quzhou 324000, P. R. China
| | - Zhen Ren
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Boyu Song
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Qiang Li
- Beijing Advanced Innovation Center for Materials Genome Engineering, Department of Physical Chemistry, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Lirong Zheng
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Song Hong
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Xianran Xing
- Beijing Advanced Innovation Center for Materials Genome Engineering, Department of Physical Chemistry, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Ding Ma
- College of Chemistry and Molecular Engineering and College of Engineering, BIC-ESAT, Peking University, Beijing 100871, P. R. China
| | - Min Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
- Quzhou Institute for Innovation in Resource Chemical Engineering, Quzhou 324000, P. R. China
| | - Xue Duan
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
- Quzhou Institute for Innovation in Resource Chemical Engineering, Quzhou 324000, P. R. China
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27
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Mohite SV, Kim S, Bae J, J Jeong H, Kim TW, Choi J, Kim Y. Defects Healing of the ZnO Surface by Filling with Au Atom Catalysts for Efficient Photocatalytic H 2 Production. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2304393. [PMID: 37712098 DOI: 10.1002/smll.202304393] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/28/2023] [Indexed: 09/16/2023]
Abstract
Healed defects on photocatalysts surface and their interaction with plasmonic nanoparticles (NPs) have attracted attention in H2 production process. In this study, surface oxygen vacancy (Vo ) defects are created on ZnO (Vo -ZnO) NPs by directly pyrolyzing zeolitic imidazolate framework. The surface defects on Vo -ZnO provide active sites for the diffusion of single Au atoms and as nucleation sites for the formation of Au NPs by the in situ photodeposition process. The electronically healed surface defects by single Au atoms help in the formation of a heterojunction between the ZnO and plasmonic Au NPs. The formed Au/Vo -Au:ZnO-4 heterojunction prolongs photoelectron lifetimes and increases donor charge density. Therefore, the optimized photocatalysts of Au/Vo -Au:ZnO-4 has 21.28 times higher H2 production rate than the pristine Vo -ZnO under UV-visible light in 0.35 m Na2 SO4 and 0.25 m Na2 SO3 . However in 0.35 m Na2 S and 0.25 m Na2 SO3 , the H2 production rate is 25.84 mmole h-1 g-1 . Furthermore, Au/Vo -Au:ZnO-4 shows visible light activity by generating hot carries via induced surface plasmonic effects. It has 48.58 times higher H2 production rate than pristine Vo -ZnO. Therefore, this study infers new insight for defect healing mediated preparation of Au/Vo -Au:ZnO heterojunction for efficient photocatalytic H2 production.
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Affiliation(s)
- Santosh V Mohite
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
| | - Shinik Kim
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
- Department of Chemistry, College of Natural Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Jiyoung Bae
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
| | - Hee J Jeong
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
| | - Tae Woong Kim
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
| | - Jihoon Choi
- Department of Materials Science and Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Yeonho Kim
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
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28
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Eliasson H, Niu Y, Palmer RE, Grönbeck H, Erni R. Support-facet-dependent morphology of small Pt particles on ceria. NANOSCALE 2023; 15:19091-19098. [PMID: 37929917 DOI: 10.1039/d3nr04701f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Direct atomic scale information on how the structure of supported nanoparticles is affected by the metal-support interaction is rare. Using scanning transmission electron microscopy, we provide direct evidence of a facet-dependent support interaction for Pt nanoparticles on CeO2, governing the dimensionality of small platinum particles. Our findings indicate that particles consisting of less than ∼130 atoms prefer a 3D shape on CeO2(111) facets, while 2D raft structures are favored on CeO2(100) facets. Measurements of stationary particles on both surface facets are supplemented by time resolved measurements following a single particle with atomic resolution as it migrates from CeO2(111) to CeO2(100), undergoing a dimensionality change from 3D to 2D. The intricate transformation mechanism reveals how the 3D particle disassembles and completely wets a neighboring CeO2(100) facet. Density functional theory calculations confirm the structure-trend and reveal the thermodynamic driving force for the migration of small particles. Knowledge of the presented metal-support interactions is crucial to establish structure-function relationships in a range of applications based on supported nanostructures.
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Affiliation(s)
- Henrik Eliasson
- Electron Microscopy Center, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland.
| | - Yubiao Niu
- Nanomaterials Lab, Faculty of Science and Engineering, Swansea University, Bay Campus, Swansea, SA1 8EN, UK
| | - Richard E Palmer
- Nanomaterials Lab, Faculty of Science and Engineering, Swansea University, Bay Campus, Swansea, SA1 8EN, UK
| | - Henrik Grönbeck
- Department of Physics and Competence Centre for Catalysis, Chalmers University of Technology, SE-41296 Göteborg, Sweden
| | - Rolf Erni
- Electron Microscopy Center, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland.
- Department of Materials, ETH Zurich, CH-8093 Zurich, Switzerland
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29
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Zhang J, Yang Y, Qin F, Hu T, Zhao X, Zhao S, Cao Y, Gao Z, Zhou Z, Liang R, Tan C, Qin Y. Catalyzing Generation and Stabilization of Oxygen Vacancies on CeO 2-x Nanorods by Pt Nanoclusters as Nanozymes for Catalytic Therapy. Adv Healthc Mater 2023; 12:e2302056. [PMID: 37708844 PMCID: PMC11468536 DOI: 10.1002/adhm.202302056] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/09/2023] [Indexed: 09/16/2023]
Abstract
Although CeO2 nanomaterials have been widely explored as nanozymes for catalytic therapy, they still suffer from relatively low activities. Herein, the catalyzing generation and stabilization of oxygen vacancies on CeO2 nanorods by Pt nanoclusters via H2 gas reduction under mild temperature (350 °C) to obtain Pt/CeO2- x , which can serve as a highly efficient nanozyme for catalytic cancer therapy, is reported. The deposited Pt on CeO2 by the atomic layer deposition technique not only can serve as the catalyst to generate oxygen vacancies under mild temperature reduction through the hydrogen spillover effect, but also can stabilize the generated oxygen vacancies. Meanwhile, the oxygen vacancies also provide anchoring sites for Pt forming strong metal-support interactions and thus preventing their agglomerations. Importantly, the Pt/CeO2- x reduced at 350 °C (Pt/CeO2- x -350R) exhibits excellent enzyme-mimicking catalytic activity for generation of reactive oxygen species (e.g., ·OH) as compared to other control samples, including CeO2 , Pt/CeO2 , and Pt/CeO2- x reduced at other temperatures, thus achieving excellent performance for tumor-specific catalytic therapy to efficiently eliminate cancer cells in vitro and ablate tumors in vivo. The excellent enzyme-mimicking catalytic activity of Pt/CeO2- x -350R originates from the good catalytic activities of oxygen vacancy-rich CeO2- x and Pt nanoclusters.
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Affiliation(s)
- Jiankang Zhang
- Interdisciplinary Research Center of Biology and CatalysisSchool of Life SciencesNorthwestern Polytechnical UniversityXi'an710072P. R. China
| | - Yu Yang
- State Key Laboratory of Chemical Resource EngineeringBeijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijing100029P. R. China
| | - Fengmin Qin
- Interdisciplinary Research Center of Biology and CatalysisSchool of Life SciencesNorthwestern Polytechnical UniversityXi'an710072P. R. China
| | - Tingting Hu
- State Key Laboratory of Chemical Resource EngineeringBeijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijing100029P. R. China
| | - Xinshuo Zhao
- College of Chemistry and Chemical EngineeringHenan Key Laboratory of Function‐Oriented Porous MaterialsLuoyang Normal UniversityLuoyang471934P. R. China
| | - Shichao Zhao
- State Key Laboratory of Coal ConversionInstitute of Coal ChemistryChinese Academy of SciencesTaiyuan030001P. R. China
| | - Yueqiang Cao
- State Key Laboratory of Chemical EngineeringSchool of Chemical EngineeringEast China University of Science and TechnologyShanghai200237P. R. China
| | - Zhe Gao
- State Key Laboratory of Coal ConversionInstitute of Coal ChemistryChinese Academy of SciencesTaiyuan030001P. R. China
| | - Zhan Zhou
- College of Chemistry and Chemical EngineeringHenan Key Laboratory of Function‐Oriented Porous MaterialsLuoyang Normal UniversityLuoyang471934P. R. China
| | - Ruizheng Liang
- State Key Laboratory of Chemical Resource EngineeringBeijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijing100029P. R. China
- Quzhou Institute for Innovation in Resource Chemical EngineeringQuzhou324000P. R. China
| | - Chaoliang Tan
- Department Electrical and Electronic EngineeringThe University of Hong KongPokfulam RoadHong KongSAR999077P. R. China
| | - Yong Qin
- Interdisciplinary Research Center of Biology and CatalysisSchool of Life SciencesNorthwestern Polytechnical UniversityXi'an710072P. R. China
- State Key Laboratory of Coal ConversionInstitute of Coal ChemistryChinese Academy of SciencesTaiyuan030001P. R. China
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30
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Tan W, Cai Y, Yu H, Xie S, Wang M, Ye K, Ma L, Ehrlich SN, Gao F, Dong L, Liu F. Tuning the Interaction between Platinum Single Atoms and Ceria by Zirconia Doping for Efficient Catalytic Ammonia Oxidation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:15747-15758. [PMID: 37788364 DOI: 10.1021/acs.est.3c06067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Aiming at the development of an efficient NH3 oxidation catalyst to eliminate the harmful NH3 slip from the stationary flue gas denitrification system and diesel exhaust aftertreatment system, a facile ZrO2 doping strategy was proposed to construct Pt1/CexZr1-xO2 catalysts with a tunable Pt-CeO2 interaction strength and Pt-O-Ce coordination environment. According to the results of systematic characterizations, Pt species supported on CexZr1-xO2 were mainly in the form of single atoms when x ≥ 0.7, and the strength of the Pt-CeO2 interaction and the coordination number of Pt-O-Ce bond (CNPt-O-Ce) on Pt1/CexZr1-xO2 showed a volcanic change as a function of the ZrO2 doping amount. It was proposed that the balance between the reasonable concentration of oxygen defects and limited surface Zr-Ox species well accounted for the strongest Pt-CeO2 interaction and the highest CNPt-O-Ce on Pt/Ce0.9Zr0.1O2. It was observed that the Pt/Ce0.9Zr0.1O2 catalyst exhibited much higher NH3 oxidation activity than other Pt/CexZr1-xO2 catalysts. The mechanism study revealed that the Pt1 species with the stronger Pt-CeO2 interaction and higher CNPt-O-Ce within Pt/Ce0.9Zr0.1O2 could better activate NH3 adsorbed on Lewis acid sites to react with O2 thus resulting in superior NH3 oxidation activity. This work provides a new approach for designing highly efficient Pt/CeO2 based catalysts for low-temperature NH3 oxidation.
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Affiliation(s)
- Wei Tan
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
| | - Yandi Cai
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Haowei Yu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Shaohua Xie
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
| | - Meiyu Wang
- College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Kailong Ye
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
| | - Lu Ma
- National Synchrotron Light Source II (NSLS-II), Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Steven N Ehrlich
- National Synchrotron Light Source II (NSLS-II), Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Fei Gao
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Lin Dong
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Fudong Liu
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
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31
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Wang A, Liu X, Wen Y, Qiu Y, Lv S, Xu M, Meng C, Wang K, Lin F, Xie S, Zhuo Q. Single-atom Zr embedded Ti 4O 7 anode coupling with hierarchical CuFe 2O 4 particle electrodes toward efficient electrooxidation of actual pharmaceutical wastewater. WATER RESEARCH 2023; 245:120596. [PMID: 37717331 DOI: 10.1016/j.watres.2023.120596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/21/2023] [Accepted: 09/07/2023] [Indexed: 09/19/2023]
Abstract
Electrocatalytic oxidation is commonly restricted by low degradation efficiency, slow mass transfer, and high energy consumption. Herein, a synergetic electrocatalysis system was developed for removal of various drugs, i.e., atenolol, florfenicol, and diclofenac sodium, as well as actual pharmaceutical wastewater, where the newly-designed single-atom Zr embedded Ti4O7 (Zr/Ti4O7) and hierarchical CuFe2O4 (CFO) microspheres were used as anode and microelectrodes, respectively. In the optimal reaction system, the degradation efficiencies of 40 mg L-1 atenolol, florfenicol, and diclofenac sodium could achieve up to 98.8%, 93.4%, and 85.5% in 120 min with 0.1 g L-1 CFO at current density of 25 mA cm-2. More importantly, in the flow-through reactor, the electrooxidation lasting for 150 min could reduce the COD of actual pharmaceutical wastewater from 432 to 88.6 mg L-1, with a lower energy consumption (25.67 kWh/m3). Meanwhile, the electrooxidation system maintained superior stability and environmental adaptability. DFT theory calculations revealed that the excellent performance of this electrooxidation system could be ascribed to the striking features of the reduced reaction energy barrier by single-atom Zr loading and abundant oxygen vacancies on the Zr/Ti4O7 surface. Moreover, the characterization and experimental results demonstrated that the CFO unique hierarchical structure and synergistic effect between electrodes were also the important factors that could improve the system performance. The findings shed light on the single-atom material design for boosting electrochemical oxidation performance.
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Affiliation(s)
- Anqi Wang
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China.
| | - Xingxin Liu
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; School of Civil Engineering, University of South China, Hengyang 421001, China
| | - Yukai Wen
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Yongfu Qiu
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China.
| | - Sihao Lv
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Manman Xu
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Cuilin Meng
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Kai Wang
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Fengjie Lin
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Shuibo Xie
- School of Civil Engineering, University of South China, Hengyang 421001, China.
| | - Qiongfang Zhuo
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou 510275, China.
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32
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Kaiser S, Plansky J, Krinninger M, Shavorskiy A, Zhu S, Heiz U, Esch F, Lechner BAJ. Does Cluster Encapsulation Inhibit Sintering? Stabilization of Size-Selected Pt Clusters on Fe 3O 4(001) by SMSI. ACS Catal 2023; 13:6203-6213. [PMID: 37180966 PMCID: PMC10167661 DOI: 10.1021/acscatal.3c00448] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/08/2023] [Indexed: 05/16/2023]
Abstract
The metastability of supported metal nanoparticles limits their application in heterogeneous catalysis at elevated temperatures due to their tendency to sinter. One strategy to overcome these thermodynamic limits on reducible oxide supports is encapsulation via strong metal-support interaction (SMSI). While annealing-induced encapsulation is a well-explored phenomenon for extended nanoparticles, it is as yet unknown whether the same mechanisms hold for subnanometer clusters, where concomitant sintering and alloying might play a significant role. In this article, we explore the encapsulation and stability of size-selected Pt5, Pt10, and Pt19 clusters deposited on Fe3O4(001). In a multimodal approach using temperature-programmed desorption (TPD), X-ray photoelectron spectroscopy (XPS), and scanning tunneling microscopy (STM), we demonstrate that SMSI indeed leads to the formation of a defective, FeO-like conglomerate encapsulating the clusters. By stepwise annealing up to 1023 K, we observe the succession of encapsulation, cluster coalescence, and Ostwald ripening, resulting in square-shaped crystalline Pt particles, independent of the initial cluster size. The respective sintering onset temperatures scale with the cluster footprint and thus size. Remarkably, while small encapsulated clusters can still diffuse as a whole, atom detachment and thus Ostwald ripening are successfully suppressed up to 823 K, i.e., 200 K above the Hüttig temperature that indicates the thermodynamic stability limit.
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Affiliation(s)
- Sebastian Kaiser
- Chair
of Physical Chemistry and Catalysis Research Center, Department of
Chemistry, School of Natural Sciences, Technical
University of Munich, 85748 Garching, Germany
| | - Johanna Plansky
- Functional
Nanomaterials Group and Catalysis Research Center, Department of Chemistry,
School of Natural Sciences, Technical University
of Munich, 85748 Garching, Germany
| | - Matthias Krinninger
- Functional
Nanomaterials Group and Catalysis Research Center, Department of Chemistry,
School of Natural Sciences, Technical University
of Munich, 85748 Garching, Germany
| | | | - Suyun Zhu
- MAX
IV Laboratory, Lund University, Lund 221 00, Sweden
| | - Ueli Heiz
- Chair
of Physical Chemistry and Catalysis Research Center, Department of
Chemistry, School of Natural Sciences, Technical
University of Munich, 85748 Garching, Germany
| | - Friedrich Esch
- Chair
of Physical Chemistry and Catalysis Research Center, Department of
Chemistry, School of Natural Sciences, Technical
University of Munich, 85748 Garching, Germany
| | - Barbara A. J. Lechner
- Functional
Nanomaterials Group and Catalysis Research Center, Department of Chemistry,
School of Natural Sciences, Technical University
of Munich, 85748 Garching, Germany
- Institute
for Advanced Study, Technical University
of Munich, Lichtenbergstraße
2a, 85748 Garching, Germany
| |
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