1
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Liu S, Du J, Wang H, Jia W, Wu Y, Qi P, Zhan S, Wu Q, Ma J, Ren N, Guo WQ. How hetero-single-atom dispersion reconstructed electronic structure of carbon materials and regulated Fenton-like oxidation pathways. Water Res 2024; 254:121417. [PMID: 38461597 DOI: 10.1016/j.watres.2024.121417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/24/2024] [Accepted: 03/04/2024] [Indexed: 03/12/2024]
Abstract
Single-atom catalysts (SACs) have emerged as competitive candidates for Fenton-like oxidation of micro-pollutants in water. However, the impact of metal insertion on the intrinsic catalytic activity of carrier materials has been commonly overlooked, and the environmental risk due to metal leaching still requires attention. In contrast to previous reports, where metal sites were conventionally considered as catalytic centers, our study investigates, for the first time, the crucial catalytic role of the carbon carrier modulated through hetero-single-atom dispersion and the regulation of Fenton-like oxidation pathways. The inherent differences in electronic properties between Fe and Co can effectively trigger long-range electron rearrangement in the sp2-carbon-conjugated structure, creating more electron-rich regions for peroxymonosulfate (PMS) complexation and initiating the electron transfer process (ETP) for pollutant degradation, which imparts the synthesized catalyst (FeCo-NCB) with exceptional catalytic efficiency despite its relatively low metal content. Moreover, the FeCo-NCB/PMS system exhibits enduring decontamination efficiency in complex water matrices, satisfactory catalytic stability, and low metal leaching, signifying promising practical applications. More impressively, the spatial relationship between metal sites and electron density clouds is revealed to determine whether high-valent metal-oxo species (HVMO) are involved during the decomposition of surface complexes. Unlike single-type single-atom dispersion, where metal sites are situated within electron-rich regions, hetero-single-atom dispersion can cause the deviation of electron density clouds from the metal sites, thus hindering the in-situ oxidation of metal within the complexes and minimizing the contribution of HVMO. These findings provide new insights into the development of carbon-based SACs and advance the understanding of nonradical mechanisms underpinning Fenton-like treatments.
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Affiliation(s)
- Shiyu Liu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Juanshan Du
- Department of Energy Engineering, Korea Institute of Energy Technology (KENTECH), Naju 58330, Korea
| | - Huazhe Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Wenrui Jia
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yaohua Wu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Peishi Qi
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Shuyan Zhan
- Win Future Environmental Protection Tech. Co., Ltd, Tianjin 300308, China
| | - Qinglian Wu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Wan-Qian Guo
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
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2
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Wang Y, Yan Y, Zhang H, Peng X, Huang H, Zhang S, Shi L. Stabilizing electron-rich Ni single-atoms on black phosphorus nanosheets boosts photocatalytic carbon dioxide reduction. J Colloid Interface Sci 2024; 658:324-333. [PMID: 38113541 DOI: 10.1016/j.jcis.2023.12.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/29/2023] [Accepted: 12/11/2023] [Indexed: 12/21/2023]
Abstract
The development of unique single-atom catalysts with electron-rich feature is essential to promoting the photocatalytic CO2 reduction, yet remains a big challenge. Here, a conceptionally new single-atom catalyst constructed from atomically dispersed Ni-P3 species on black phosphorus (BP) nanosheets (BP-Ni) is synthesized for realizing highly efficient visible-light-driven CO2 reduction when trapping photogenerated electrons from homogeneous light absorbers in the presence of triethanolamine as the sacrificial agent. Both the experimental and theoretical calculation data reveal that the Ni-P3 species on BP nanosheets own the electron-rich feature that can improve the photogenerated charge separation efficiency and lower the activation barrier of CO2 conversion. This unique feature makes BP-Ni exhibit the much higher activity as cocatalyst in the photocatalytic CO2 reduction than BP nanosheets. The BP-Ni can also be applied as a cocatalyst for enhanced photocatalytic CO2 reduction after combining with CdSe/S colloidal crystal photocatalyst. The present study offers valuable inspirations for the design and construction of effective catalytic sites toward photocatalytic CO2 reduction reactions.
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Affiliation(s)
- Ye Wang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, PR China
| | - Yingkui Yan
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, PR China
| | - Huabin Zhang
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Xinsheng Peng
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Hubiao Huang
- Emergent Soft Matter Function Research Group, RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Songtao Zhang
- Testing Center, Yangzhou University, Yangzhou 225009, PR China
| | - Li Shi
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, PR China.
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3
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Liu F, Li J, An N, Huang J, Liu X, Li M. Highly active electroreduction of nitrates to ammonia over a zeolitic imidazolium framework-derived Fe single-atom catalyst with sulfur-modified asymmetric active centers. J Hazard Mater 2024; 465:133484. [PMID: 38219591 DOI: 10.1016/j.jhazmat.2024.133484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 12/21/2023] [Accepted: 01/08/2024] [Indexed: 01/16/2024]
Abstract
The electroreduction of aqueous nitrate (NO3-) to ammonium is an energy-efficient process that helps protect the environment and facilitates ammonia production. However, a fine optimization of the catalyst structure containing active centers should be performed to improve the efficiencies of NO3- reduction and NH4+ production. Herein, a zeolitic imidazolate framework (ZIF)-derived sulfur-modified Fe single-atom catalyst is developed as an efficient and durable cathode material. Experimental and theoretical studies confirm the role of S-doping in modifying the electron density distribution of Fe centers, promoting the interaction between the Fe 3d orbital and O 2p orbital of NO3- and thereby enhancing its catalytic performance. A Faradaic efficiency of 93.9% for NH4+ production at - 0.47 V vs. the reversible hydrogen electrode is achieved, which remains at 91.0% even after six cycles. A synergistic effect between a defect-rich support and metal atom centers can be utilized to develop a new strategy for the facile design and implementation of high-performance electrocatalysts.
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Affiliation(s)
- Fang Liu
- School of Ecology and Environment, Inner Mongolia University, 235# Daxue West Road, Yuquan District, Hohhot 010070, China
| | - Jiacheng Li
- School of Environment, Beijing Normal University, 19# Xinjiekouwai St., Hai Dian Distract, Beijing 100875, China
| | - Ning An
- School of Environment, Tsinghua University, 30# Shuangqing Road, Hai Dan District, Beijing 100086, China
| | - Jiaxin Huang
- School of Environment, Tsinghua University, 30# Shuangqing Road, Hai Dan District, Beijing 100086, China
| | - Xiang Liu
- School of Environment, Tsinghua University, 30# Shuangqing Road, Hai Dan District, Beijing 100086, China
| | - Miao Li
- School of Environment, Tsinghua University, 30# Shuangqing Road, Hai Dan District, Beijing 100086, China.
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4
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Dai H, Zhao Z, Wang K, Meng F, Lin D, Zhou W, Chen D, Zhang M, Yang D. Regulating electronic structure of Fe single-atom site by S/N dual-coordination for efficient Fenton-like catalysis. J Hazard Mater 2024; 465:133399. [PMID: 38163411 DOI: 10.1016/j.jhazmat.2023.133399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/10/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
The activity of single-atom catalysts in peroxymonosulfate activation process is bound up with the local electronic state of metal center. However, the large electronegativity of N atoms in Metal-N4 restricts the electron transfer between center metal atom and peroxymonosulfate. Herein, we constructed Fe-SN-C catalyst by incorporating S atom in the first coordination sphere of Fe single-atom site (Fe-S1N3) for Fenton-like catalysis. The Fe-SN-C with a low valent Fe is found to exhibit excellent catalytic activity for bisphenol A degradation, and the corresponding rate constant reaches 0.405 min-1, 11.9-fold higher than the original Fe-N-C. Besides, the Fe-SN-C/PMS system exhibits ideal catalytic stability under the effect of wide pH range and background substrates by the fast generation of high-valent Fe species. Experimental results and theoretical calculations reveal that the dual coordination of S and N atoms notably increases the local electron density of Fe atoms and electron filling in eg orbital, causing a d band center shifting close to the fermi level and thereby optimizes the activation energy for peroxymonosulfate decomposition via Fe 3d-O 2p orbital interaction. This work provides further development of promising SACs for the efficient activation of peroxymonosulfate based on direct regulation of the coordination environment of active center metal atoms.
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Affiliation(s)
- Huiwang Dai
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Zhejiang Ecological Civilization Academy, Anji, Zhejiang 310058, China
| | - Zhendong Zhao
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Kun Wang
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Fanxu Meng
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Daohui Lin
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Zhejiang Ecological Civilization Academy, Anji, Zhejiang 310058, China
| | - Wenjun Zhou
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Zhejiang Ecological Civilization Academy, Anji, Zhejiang 310058, China.
| | - Dingjiang Chen
- Zhejiang Ecological Civilization Academy, Anji, Zhejiang 310058, China; Institute of Soil and Water Resources and Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Ming Zhang
- Department of Environment Engineering, China Jiliang University, Hangzhou 310018, China
| | - Dongye Yang
- Zhejiang Huanneng Environmental Technology Co. Ltd., Hangzhou, Zhejiang 310012, China
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5
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Abadia M, Piquero-Zulaica I, Brede J, Verdini A, Floreano L, V. Barth J, Lobo-Checa J, Corso M, Rogero C. Enhancing Haloarene Coupling Reaction Efficiency on an Oxide Surface by Metal Atom Addition. Nano Lett 2024; 24:1923-1930. [PMID: 38315034 PMCID: PMC10870764 DOI: 10.1021/acs.nanolett.3c04111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/30/2024] [Accepted: 01/30/2024] [Indexed: 02/07/2024]
Abstract
The bottom-up synthesis of carbon-based nanomaterials directly on semiconductor surfaces allows for the decoupling of their electronic and magnetic properties from the substrates. However, the typically reduced reactivity of such nonmetallic surfaces adversely affects the course of these reactions. Here, we achieve a high polymerization yield of halogenated polyphenyl molecular building blocks on the semiconducting TiO2(110) surface via concomitant surface decoration with cobalt atoms, which catalyze the Ullmann coupling reaction. Specifically, cobalt atoms trigger the debromination of 4,4″-dibromo-p-terphenyl molecules on TiO2(110) and mediate the formation of an intermediate organometallic phase already at room temperature (RT). As the debromination temperature is drastically reduced, homocoupling and polymerization readily proceed, preventing presursor desorption from the substrate and entailing a drastic increase of the poly-para-phenylene polymerization yield. The general efficacy of this mechanism is shown with an iodinated terphenyl derivative, which exhibits similar dehalogenation and reaction yield.
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Affiliation(s)
- Mikel Abadia
- Centro
de Física de Materiales (CSIC-UPV/EHU), Materials Physics Center
MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, E-20018 Donostia-San Sebastián, Spain
| | - Ignacio Piquero-Zulaica
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, E-20018 Donostia-San Sebastián, Spain
- Physics
Department E20, Technical University of
Munich (TUM), 85748 Garching, Germany
| | - Jens Brede
- Centro
de Física de Materiales (CSIC-UPV/EHU), Materials Physics Center
MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
| | - Alberto Verdini
- CNR-IOM,
Instituto Officina dei Materiali Laboratorio TASC, 34149 Trieste, Italy
| | - Luca Floreano
- CNR-IOM,
Instituto Officina dei Materiali Laboratorio TASC, 34149 Trieste, Italy
| | - Johannes V. Barth
- Physics
Department E20, Technical University of
Munich (TUM), 85748 Garching, Germany
| | - Jorge Lobo-Checa
- Instituto
de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
- Departamento
de Física de la Materia Condensada, Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Martina Corso
- Centro
de Física de Materiales (CSIC-UPV/EHU), Materials Physics Center
MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, E-20018 Donostia-San Sebastián, Spain
| | - Celia Rogero
- Centro
de Física de Materiales (CSIC-UPV/EHU), Materials Physics Center
MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, E-20018 Donostia-San Sebastián, Spain
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6
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Zhuang C, Chang Y, Li W, Li S, Xu P, Zhang H, Zhang Y, Zhang C, Gao J, Chen G, Zhang T, Kang Z, Han X. Light-Induced Variation of Lithium Coordination Environment in g-C 3N 4 Nanosheet for Highly Efficient Oxygen Reduction Reactions. ACS Nano 2024. [PMID: 38294412 DOI: 10.1021/acsnano.4c00217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
The structure and electronic state of the active center in a single-atom catalyst undergo noticeable changes during a dynamic catalytic process. The metal atom active center is not well demonstrated in a dynamic manner. This study demonstrated that Li metal atoms, serving as active centers, can migrate on a C3N4 monolayer or between C3N4 monolayers when exposed to light irradiation. This migration alters the local coordination environment of Li in the C3N4 nanosheets, leading to a significant enhancement in photocatalytic activity. The photocatalytic H2O2 process could be maintained for 35 h with a 920 mmol/g record-high yield, corresponding to a 0.4% H2O2 concentration, which is far greater than the value (0.1%) of practical application for wastewater treatment. Density functional theory calculations indicated that dynamic Li-coordinated structures contributed to the superhigh photocatalytic activity.
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Affiliation(s)
- Chunqiang Zhuang
- Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Yuan Chang
- Laboratory of Materials Modification by Laser Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, People's Republic of China
| | - Weiming Li
- Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Shijie Li
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, National Engineering Research Center for Marine Aquaculture, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, Zhejiang, People's Republic of China
| | - Peng Xu
- National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
| | - Hang Zhang
- Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Yihong Zhang
- Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Can Zhang
- Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Junfeng Gao
- Laboratory of Materials Modification by Laser Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, People's Republic of China
| | - Ge Chen
- Beijing Key Laboratory for Green Catalysis and Separation, Faculty of Environment and Life Science, Beijing University of Technology, Beijing 100124, People's Republic of China
| | - Tianyang Zhang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University, Suzhou 215123, People's Republic of China
| | - Zhenhui Kang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University, Suzhou 215123, People's Republic of China
- Macao Institute of Materials Science and Engineering (MIMSE), MUST-SUDA Joint Research Center for Advanced Functional Materials, Macau University of Science and Technology, Taipa 999078, Macao, People's Republic of China
| | - Xiaodong Han
- Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, People's Republic of China
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7
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Chen C, Zhou S, Xia J, Li L, Qian X, Yin F, He G, Chen H. g-C 3N 4 promoted MOF-derived Fe single atoms anchored on N-doped hierarchically porous carbon for high-performance Zn-air batteries. J Colloid Interface Sci 2024; 653:551-560. [PMID: 37729762 DOI: 10.1016/j.jcis.2023.09.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/08/2023] [Accepted: 09/14/2023] [Indexed: 09/22/2023]
Abstract
Exploring efficient, easy-to-manufacture, and inexpensive bifunctional electrocatalysts with abundant accessible active sites is crucial for rechargeable zinc-air batteries (ZABs). Herein, we report the strategy consisting of the space confinement and pore-making engineering to fabricate single-atom catalyst enriched with Fe-N4 sites anchored on N-doped hierarchically porous carbon (Fe-NC-C3N4). The optimized Fe-NC-C3N4 exhibits excellent oxygen reduction/evolution reaction (ORR/OER) activities with a half-wave potential (E1/2) of 0.90 V vs. RHE and a promising low overpotential of 0.305 V vs. RHE at 10 mA·cm-2 in alkaline electrolyte. These superior catalytic activities are attributed to the combined effect between the atomic active sites and the well-balanced micro-meso-macropore structures. The homemade liquid Zn-air battery (ZAB) assembled with Fe-NC-C3N4 catalyst displays a power density of 133.59 mW·cm-2 and a significant energy density of 882.58 mAh·g-1, exceeding those of the equipment with commercial Pt/C-RuO2 (56.82 mW·cm-2 and 643.87 mAh·g-1, respectively). Particularly, the corresponding flexible wearable ZAB manifests outstanding foldability and cyclical stability. This work opens a new perspective for the structural design of single-atom catalysts in the energy storage and conversion area.
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Affiliation(s)
- Chao Chen
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China
| | - Shilong Zhou
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China; Department of Chemistry and Chemical Engineering, Jiangsu University of Technology, Changzhou 213001, China
| | - Jiawei Xia
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China
| | - Le Li
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China
| | - Xingyue Qian
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China
| | - Fengxiang Yin
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China
| | - Guangyu He
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China.
| | - Haiqun Chen
- Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China.
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8
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Fang Z, Liang Y, Li Y, Ni B, Zhu J, Li Y, Huang S, Lin W, Zhang Y. Theoretical Insight into the Special Synergy of Bimetallic Site in Co/MoC Catalyst to Promote N 2 -to-NH 3 Conversion. Chemistry 2023:e202302900. [PMID: 38105290 DOI: 10.1002/chem.202302900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 12/01/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023]
Abstract
The catalytic mechanisms of nitrogen reduction reaction (NRR) on the pristine and Co/α-MoC(001) surfaces were explored by density functional theory calculations. The results show that the preferred pathway is that a direct N≡N cleavage occurs first, followed by continuous hydrogenations. The production of second NH3 molecule is identified as the rate-limiting step on both systems with kinetic barriers of 1.5 and 2.0 eV, respectively, indicating that N2 -to-NH3 transformation on bimetallic surface is more likely to occur. The two components of the bimetallic center play different roles during NRR process, in which Co atom does not directly participate in the binding of intermediates, but primarily serves as a reservoir of H atoms. This special synergy makes Co/α-MoC(001) have superior activity for ammonia synthesis. The introduction of Co not only facilitates N2 dissociation, but also accelerates the migration of H atom due to the antibonding characteristic of Co-H bond. This study offers a facile strategy for the rational design and development of efficient catalysts for ammonia synthesis and other reactions involving the hydrogenation processes.
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Affiliation(s)
- Zhongpu Fang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Yingsi Liang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Yanli Li
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Bilian Ni
- Department of Basic Chemistry, College of Pharmacy, Fujian Medical University, Fuzhou, Fujian, 350122, China
| | - Jia Zhu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
| | - Yi Li
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Xiamen, Fujian, 361005, China
| | - Shuping Huang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Wei Lin
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Xiamen, Fujian, 361005, China
| | - Yongfan Zhang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Xiamen, Fujian, 361005, China
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9
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He Q, Ding J, Tsai HJ, Liu Y, Wei M, Zhang Q, Wei Z, Chen Z, Huang J, Hung SF, Yang H, Zhai Y. Boosting photocatalytic hydrogen peroxide production by regulating electronic configuration of single Sb atoms via carbon vacancies in carbon nitrides. J Colloid Interface Sci 2023; 651:18-26. [PMID: 37536256 DOI: 10.1016/j.jcis.2023.07.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/14/2023] [Accepted: 07/27/2023] [Indexed: 08/05/2023]
Abstract
Single-atom catalysts supported on semiconductors can serve as active sites for efficient oxygen reduction to hydrogen peroxide (H2O2). However, researchers have long been puzzled by the lack of guidance on optimizing the performance of single-atom photocatalysts. In this study, we propose a versatile strategy that utilizes carbon vacancies to regulate the electronic configuration of antimony (Sb) atoms on carbon nitrides (C3N4). This strategy has been found to significantly enhance the photocatalytic production of H2O2. The H2O2 evolution rate of Sb single-atom on carbon vacancy-rich C3N4 (designated as Sb1/Cv-C3N4) is 5.369 mmol g-1h-1, which is 10.9 times higher than C3N4 alone. By combining experimental characterizations and density functional theory simulations, we reveal the strong electronic interaction between Sb atoms and carbon vacancy-rich C3N4. This interaction is capable for maintaining the electron-rich state of Sb atoms, facilitating efficient electron transfer to pauling-type absorbed oxygen, and ultimately enhancing the formation of *OOH intermediates. This innovative defect-engineering approach can manipulate the electronic configuration of single-atom catalysts, providing a new avenue to boost the photocatalytic oxygen reduction reaction towards H2O2 production.
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Affiliation(s)
- Qinye He
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Jie Ding
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Hsin-Jung Tsai
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Yuhang Liu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Min Wei
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Qiao Zhang
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Zhiming Wei
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Zhaoyang Chen
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Jian Huang
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Sung-Fu Hung
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan.
| | - Hongbin Yang
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Yueming Zhai
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China.
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10
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Cao Y, Zhang Y, Yang L, Zhu K, Yuan Y, Li G, Yuan Y, Zhang Q, Bai Z. Boosting oxygen reduction reaction kinetics through perturbating electronic structure of single-atom Fe-N 3S 1 catalyst with sub-nano FeS cluster. J Colloid Interface Sci 2023; 650:924-933. [PMID: 37453316 DOI: 10.1016/j.jcis.2023.06.169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 06/21/2023] [Accepted: 06/24/2023] [Indexed: 07/18/2023]
Abstract
Single atomic Fe-N4 catalyst exhibits a great prospect for oxygen reduction reaction (ORR) and adjusting the intrinsic coordination structure and the carbon matrix structure effectively improves the catalytic activity. However, controlling the active site coordination structure and its surrounding environment at atomic level remains a challenge. In this paper, Fe-N3S1 and FeS sub-nano cluster were innovatively concatenated on S, N co-doped carbon matrix (SNC), denoted as FeS/FeSA@SNC catalysts, for modulating ORR catalysis performance. Both experimental measurements and theoretical calculations have confirmed that the local electron configuration of Fe center is modulated by this unique structure combination leading to optimized ORR kinetics. Based on this design, the synthesized FeS/FeSA@SNC delivers ORR activity with a half-wave potential of 0.9 V (vs. RHE), excelling that of commercial Pt/C (0.87 V) and the Zn-air battery (ZAB) with this cathode catalyst delivers a peak power density of 126 mW cm-2. This work presents a novel strategy for manipulating the single-atom active sites through control the local coordination structure and provides a reference for the development of novel efficient ORR electrocatalysts.
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Affiliation(s)
- Yu Cao
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yan Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Lin Yang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Kai Zhu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yang Yuan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Ge Li
- Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Yuping Yuan
- GRINM (Guangdong) Institute of New Materials Technology, Foshan 528051, China
| | - Qing Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Zhengyu Bai
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
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11
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Sun Y, Shi W, Fu YQ, Yu H, Wang Z, Li Z. The novel π-d conjugated TM 2B 3N 3S 6 (TM = Mo, Ti and W) monolayers as highly active single-atom catalysts for electrocatalytic synthesis of ammonia. J Colloid Interface Sci 2023; 650:1-12. [PMID: 37392494 DOI: 10.1016/j.jcis.2023.06.181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/11/2023] [Accepted: 06/26/2023] [Indexed: 07/03/2023]
Abstract
Recently, single-atom catalysts (SACs) are receiving significant attention in electrocatalysis fields due to their excellent specific activities and extremely high atomic utilization ratio. Effective loading of metal atoms and high stability of SACs increase the number of exposed active sites, thus significantly improving their catalytic efficiency. Herein, we proposed a series (29 in total) of two-dimensional (2D) conjugated structures of TM2B3N3S6 (TM means those 3d to 5d transition metals) and studied the performance as single-atom catalysts for nitrogen reduction reaction (NRR) using density functional theory (DFT). Results show that TM2B3N3S6 (TM = Mo, Ti and W) monolayers have superior performance for ammonia synthesis with low limiting potentials of -0.38, -0.53 and -0.68 V, respectively. Among them, the Mo2B3N3S6 monolayer shows the best catalytic performance of NRR. Meanwhile, the π conjugated B3N3S6 rings undergo coordinated electron transfer with the d orbitals of TM to exhibit good chargeability, and these TM2B3N3S6 monolayers activate isolated N2 according to the "acceptance-donation" mechanism. We have also verified the good stability (i.e., Ef < 0, and Udiss > 0) and high selectivity (Ud = -0.03, 0.01 and 0.10 V, respectively) of the above four types of monolayers for NRR over hydrogen evolution reaction (HER). The NRR activities have been clarified by multiple-level descriptors (ΔG*N2H, ICOHP, and Ɛd) in the terms of basic characteristics, electronic property, and energy. Moreover, the aqueous solution can promote the NRR process, leading to the reduction of ΔGPDS from 0.38 eV to 0.27 eV for the Mo2B3N3S6 monolayer. However, the TM2B3N3S6 (TM = Mo, Ti and W) also showed excellent stability in aqueous phase. This study proves that the π-d conjugated monolayers of TM2B3N3S6 (TM = Mo, Ti and W) as electrocatalysts show great potentials for the nitrogen reduction.
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Affiliation(s)
- Yongxiu Sun
- University of Electronic Science and Technology of China, Chengdu 610054, PR China
| | - Wenwu Shi
- University of Electronic Science and Technology of China, Chengdu 610054, PR China
| | - Yong-Qing Fu
- Faculty of Engineering and Environment, Northumbria University, Newcastle Upon Tyne NE1 8ST, UK
| | - Haijian Yu
- Department of Mechanical Engineer, Weihai Secondary Vocational School, Weihai 264213, PR China
| | - Zhiguo Wang
- University of Electronic Science and Technology of China, Chengdu 610054, PR China.
| | - Zhijie Li
- University of Electronic Science and Technology of China, Chengdu 610054, PR China.
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12
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Zhang L, Jin N, Yang Y, Miao XY, Wang H, Luo J, Han L. Advances on Axial Coordination Design of Single-Atom Catalysts for Energy Electrocatalysis: A Review. Nanomicro Lett 2023; 15:228. [PMID: 37831204 PMCID: PMC10575848 DOI: 10.1007/s40820-023-01196-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 08/28/2023] [Indexed: 10/14/2023]
Abstract
Single-atom catalysts (SACs) have garnered increasingly growing attention in renewable energy scenarios, especially in electrocatalysis due to their unique high efficiency of atom utilization and flexible electronic structure adjustability. The intensive efforts towards the rational design and synthesis of SACs with versatile local configurations have significantly accelerated the development of efficient and sustainable electrocatalysts for a wide range of electrochemical applications. As an emergent coordination avenue, intentionally breaking the planar symmetry of SACs by adding ligands in the axial direction of metal single atoms offers a novel approach for the tuning of both geometric and electronic structures, thereby enhancing electrocatalytic performance at active sites. In this review, we briefly outline the burgeoning research topic of axially coordinated SACs and provide a comprehensive summary of the recent advances in their synthetic strategies and electrocatalytic applications. Besides, the challenges and outlooks in this research field have also been emphasized. The present review provides an in-depth and comprehensive understanding of the axial coordination design of SACs, which could bring new perspectives and solutions for fine regulation of the electronic structures of SACs catering to high-performing energy electrocatalysis.
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Affiliation(s)
- Linjie Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, People's Republic of China
| | - Na Jin
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, People's Republic of China
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350117, People's Republic of China
| | - Yibing Yang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, People's Republic of China
| | - Xiao-Yong Miao
- State Key Laboratory of ASIC and System, Shanghai Institute of Intelligent Electronics and Systems, School of Microelectronics, Fudan University, Shanghai, 200433, People's Republic of China
| | - Hua Wang
- ShenSi Lab, Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Shenzhen, 518110, People's Republic of China
| | - Jun Luo
- ShenSi Lab, Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Shenzhen, 518110, People's Republic of China.
| | - Lili Han
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, People's Republic of China.
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13
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Wu S, Yang Z, Zhou Z, Li X, Lin Y, Cheng JJ, Yang C. Catalytic activity and reaction mechanisms of single-atom metals anchored on nitrogen-doped carbons for peroxymonosulfate activation. J Hazard Mater 2023; 459:132133. [PMID: 37499492 DOI: 10.1016/j.jhazmat.2023.132133] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 07/02/2023] [Accepted: 07/21/2023] [Indexed: 07/29/2023]
Abstract
Single-atom catalysts have attracted tremendous interests in peroxymonosulfate (PMS)-based advanced oxidation processes due to their maximum atom utilization and high reactivity, however the role of nitrogen-coordinated metal (MNx) sites with different metal centers remain blurred. Herein, a series of single-atom metals anchored on nitrogen-doped carbons (denoted as M-N/C, M = Fe, Co, Cu, and Mn) using zeolitic imidazolate frameworks as precursors are constructed for PMS activation. Their catalytic activity order follows Fe > Co > undoped N/C > Cu > Mn, especially the degradation rates of the eight model pollutants for Fe-N/C and Co-N/C are 2.5-22.4 and 1.5-19.5 times higher than those for undoped N/C, respectively. Moreover, the nature of catalytic metal center can govern the degradation behaviors in the coexisting water constituents. Experimental and theoretical results reveal that singlet oxygen (1O2) is the main oxidant responsible for pollutant degradation and its evolution path over FeN4 or CoN4 sites (PMS→OH*→*O→1O2) is elucidated, between which FeN4 with lower energy barrier is more conducive to 1O2 generation. This study can not only provide guidance for the development of highly active atomic M-N/C catalysts, but also lead to a better molecular-level understanding of PMS activation mechanism over MN4 sites.
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Affiliation(s)
- Shaohua Wu
- Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China.
| | - Zhongwen Yang
- Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Ziyang Zhou
- Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Xiang Li
- Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Yan Lin
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Jay J Cheng
- Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China; Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC 27695, USA
| | - Chunping Yang
- Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China; College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China.
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14
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Hu H, Zhao Y, Zhang Y, Xi J, Xiao J, Cao S. Performance Regulation of Single-Atom Catalyst by Modulating the Microenvironment of Metal Sites. Top Curr Chem (Cham) 2023; 381:24. [PMID: 37480375 DOI: 10.1007/s41061-023-00434-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 07/01/2023] [Indexed: 07/24/2023]
Abstract
Metal-based catalysts, encompassing both homogeneous and heterogeneous types, play a vital role in the modern chemical industry. Heterogeneous metal-based catalysts usually possess more varied catalytically active centers than homogeneous catalysts, making it challenging to regulate their catalytic performance. In contrast, homogeneous catalysts have defined active-site structures, and their performance can be easily adjusted by modifying the ligand. These characteristics lead to remarkable conceptual and technical differences between homogeneous and heterogeneous catalysts. As a recently emerging class of catalytic material, single-atom catalysts (SACs) have become one of the most active new frontiers in the catalysis field and show great potential to bridge homogeneous and heterogeneous catalytic processes. This review documents a brief introduction to SACs and their role in a range of reactions involving single-atom catalysis. To fully understand process-structure-property relationships of single-atom catalysis in chemical reactions, active sites or coordination structure and performance regulation strategies (e.g., tuning chemical and physical environment of single atoms) of SACs are comprehensively summarized. Furthermore, we discuss the application limitations, development trends and future challenges of single-atom catalysis and present a perspective on further constructing a highly efficient (e.g., activity, selectivity and stability), single-atom catalytic system for a broader scope of reactions.
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Affiliation(s)
- Hanyu Hu
- School of Chemistry and Environmental Engineering, Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, People's Republic of China
| | - Yanyan Zhao
- Rowland Institute at Harvard, Cambridge, MA, 02142, USA
| | - Yue Zhang
- School of Chemistry and Environmental Engineering, Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, People's Republic of China
| | - Jiangbo Xi
- School of Chemistry and Environmental Engineering, Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, People's Republic of China.
| | - Jian Xiao
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, 430205, People's Republic of China.
| | - Sufeng Cao
- Aramco Boston Research Center, Cambridge, MA, 02139, USA.
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15
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Cai J, Li H, Jing Q, Feng K, Takaoka M. Atomically dispersed copper sites on titanium zirconium oxide accelerate the simultaneous oxidative removal of organic carbon and ammonia from landfill leachate. J Hazard Mater 2023; 457:131773. [PMID: 37295333 DOI: 10.1016/j.jhazmat.2023.131773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 05/23/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023]
Abstract
Landfill leachate is a refractory wastewater. Low-temperature catalytic air oxidation (LTCAO) has shown considerable potential for leachate treatment owing to its green and simple operation, but the simultaneous removal of chemical oxygen demand (COD) and ammonia from leachate remains challenging. Herein, TiZrO4 @CuSA hollow spheres with high-loading single-atom Cu were synthesized using isovolumic vacuum impregnation and co-calcination methods, and the catalyst was applied to the LTCAO treatment of real leachate. Consequently, the removal rate of UV254 reached 66% at 90 °C within 5 h, while that for COD was 88%. Simultaneously, the NH3/NH4+ (33.5 mg/L, 100 wt%) in the leachate was oxidized to N2 (88.2 wt%), NO2--N (11.0 wt%), and NO3--N (0.3 wt%) owing to the effect of free radicals. The single-atom Cu co-catalyst in TiZrO4 @CuSA exhibited a localized surface plasmon resonance effect at the active center, which could quickly transfer electrons to O2 in water to form O2.- with a high activation efficiency. The degradation products were determined and the deduced pathway was as follows: the bonds joining benzene rings were first broken, and then the ring structure was further opened to produce acetic acid and other simple organic macromolecules, which were finally mineralized to CO2 and H2O.
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Affiliation(s)
- Jiabai Cai
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8540, Japan; Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Huan Li
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.
| | - Qi Jing
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Kai Feng
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Masaki Takaoka
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8540, Japan.
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16
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Yuan M, Li C, Liu Y, Lan H, Chen Y, Liu K, Wang L. Single atom iron implanted polydopamine-modified hollow leaf-like N-doped carbon catalyst for improving oxygen reduction reaction and zinc-air batteries. J Colloid Interface Sci 2023; 645:350-358. [PMID: 37150008 DOI: 10.1016/j.jcis.2023.04.162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 04/20/2023] [Accepted: 04/29/2023] [Indexed: 05/09/2023]
Abstract
Metal-nitrogen-carbon (MNC) catalysts, especially FeNC catalysts, are considered promising candidates to replace Pt-based catalysts, but FeNC catalysts still present certain challenges in controlled-synthesis and energy device applications. In this paper, through the modification strategy of poly-dopamine (PDA) to maintain 2D leaf morphology to obtain more active sites and further adjust the N content, N-doped porous carbon monatomic iron catalyst (FeSA/NPCs) with rich-nitrogen content was prepared. XPS analysis showed that compared with C-ZIF-Fe, the contents of graphite nitrogen and pyridine nitrogen increased in FeSA/NPCs. The hollow structure with defects and Fe-N4 configuration of Fe single atom show more active sites for the catalyst, and positively promote the diffusion of reactants, oxygen exchange and electron transport, thus changing the reaction kinetics and promoting the improvement of ORR activity. FeSA/NPCs electrocatalyst exhibits good half-wave potential and onset potential at low loading (E1/2 = 0.93 V, Eonset = 1.0 V). In addition, the methanol tolerance, stability and Tafel slope are better than those of commercial Pt/C. Excitingly, the zinc-air cell with FeSA/NPCs as cathode material achieves a power density of 223 mW cm-2 and exhibits a long-term stability higher than 200 h. This work shows that nitrogen-doped porous carbon materials as well as iron monoatoms play important roles in improving electrocatalytic performance.
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Affiliation(s)
- Min Yuan
- Key Laboratory of Eco-chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Chen Li
- Key Laboratory of Eco-chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yang Liu
- Key Laboratory of Eco-chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Haikuo Lan
- Key Laboratory of Eco-chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yuting Chen
- Key Laboratory of Eco-chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Kang Liu
- Key Laboratory of Eco-chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Chaofeng Steel Structure Group Co., Ltd., Hangzhou 311215, China.
| | - Lei Wang
- Key Laboratory of Eco-chemical Engineering, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
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17
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Chandrasekaran S, Hu R, Yao L, Sui L, Liu Y, Abdelkader A, Li Y, Ren X, Deng L. Mutual Self-Regulation of d-Electrons of Single Atoms and Adjacent Nanoparticles for Bifunctional Oxygen Electrocatalysis and Rechargeable Zinc-Air Batteries. Nanomicro Lett 2023; 15:48. [PMID: 36773092 PMCID: PMC9922344 DOI: 10.1007/s40820-023-01022-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 01/11/2023] [Indexed: 05/11/2023]
Abstract
Rechargeable zinc-air batteries (ZABs) are a promising energy conversion device, which rely critically on electrocatalysts to accelerate their rate-determining reactions such as oxygen reduction (ORR) and oxygen evolution reactions (OER). Herein, we fabricate a range of bifunctional M-N-C (metal-nitrogen-carbon) catalysts containing M-Nx coordination sites and M/MxC nanoparticles (M = Co, Fe, and Cu) using a new class of γ-cyclodextrin (CD) based metal-organic framework as the precursor. With the two types of active sites interacting with each other in the catalysts, the obtained Fe@C-FeNC and Co@C-CoNC display superior alkaline ORR activity in terms of low half-wave (E1/2) potential (~ 0.917 and 0.906 V, respectively), which are higher than Cu@C-CuNC (~ 0.829 V) and the commercial Pt/C (~ 0.861 V). As a bifunctional electrocatalyst, the Co@C-CoNC exhibits the best performance, showing a bifunctional ORR/OER overpotential (ΔE) of ~ 0.732 V, which is much lower than that of Fe@C-FeNC (~ 0.831 V) and Cu@C-CuNC (~ 1.411 V), as well as most of the robust bifunctional electrocatalysts reported to date. Synchrotron X-ray absorption spectroscopy and density functional theory simulations reveal that the strong electronic correlation between metallic Co nanoparticles and the atomic Co-N4 sites in the Co@C-CoNC catalyst can increase the d-electron density near the Fermi level and thus effectively optimize the adsorption/desorption of intermediates in ORR/OER, resulting in an enhanced bifunctional electrocatalytic performance. The Co@C-CoNC-based rechargeable ZAB exhibited a maximum power density of 162.80 mW cm-2 at 270.30 mA cm-2, higher than the combination of commercial Pt/C + RuO2 (~ 158.90 mW cm-2 at 265.80 mA cm-2) catalysts. During the galvanostatic discharge at 10 mA cm-2, the ZAB delivered an almost stable discharge voltage of 1.2 V for ~ 140 h, signifying the virtue of excellent bifunctional ORR/OER electrocatalytic activity.
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Affiliation(s)
- Sundaram Chandrasekaran
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China.
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, People's Republic of China.
| | - Rong Hu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Lei Yao
- Shenzhen Key Laboratory of Special Functional Materials, Shenzhen Engineering Laboratory for Advanced Technology of Ceramics, College of Materials Science and Engineering, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Lijun Sui
- Shanghai Key Laboratory for R&D and Application of Metallic Functional Materials, Institute of New Energy for Vehicles, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, People's Republic of China
| | - Yongping Liu
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, People's Republic of China
| | - Amor Abdelkader
- Department of Design and Engineering, Faculty of Science & Technology, Bournemouth University, Poole, BH12 5BB, Dorset, UK
| | - Yongliang Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Xiangzhong Ren
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Libo Deng
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China.
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18
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Li D, Chen X, Huang Y, Zhang G, Zhou D, Xiao B. Selective catalytic oxidation of formaldehyde on single V- and Cr-atom decorated magnetic C 4N 3 substrate: A first principles study. J Hazard Mater 2022; 439:129608. [PMID: 35872455 DOI: 10.1016/j.jhazmat.2022.129608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/04/2022] [Accepted: 07/13/2022] [Indexed: 06/15/2023]
Abstract
Formaldehyde (HCHO) is the most common indoor hazardous pollutant and has attracted great concern because its long-term exposure has adverse health effects on humans. Retention and catalytic oxidation of highly hazardous HCHO is an efficient and environmentally friendly method to use for air remediation, but a major obstacle to this procedure is the lack of an appropriate catalyst. Herein, two-dimensional magnetic C4N3 material with a 3d-transition metal as activate sites was systemically investigated in HCHO oxidation using density functional theory calculations. The results show that V-C4N3 and Cr-C4N3 have high structural stability and shallow activation barriers for O2 decomposition; these characteristics provide the necessary precursors for the subsequent oxidation reaction. Moreover, the V-C4N3 and Cr-C4N3 catalysts have unique selective adsorption and catalysis toward HCHO in a mixture of some typical in-door volatile organic compounds (VOCs) and air. The corresponding dynamic barrier for each reaction step was investigated and the mechanism involved in HCHO oxidation was revealed in detail. Aggregation of metal atoms in the V-C4N3 and Cr-C4N3 catalysts is prevented by enormous diffusion resistance, and this is further confirmed by AIMD simulations. These results provide insightful guidance for developing advanced magnetic catalysts for HCHO oxidation to improve the remediation of air contaminants.
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Affiliation(s)
- Deqiao Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
| | - Xianfei Chen
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu 610059, China.
| | - Yi Huang
- College of Environment and Ecology, Chengdu University of Technology, Chengdu 610059, China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu 610059, China.
| | - Guanru Zhang
- College of Environment and Ecology, Chengdu University of Technology, Chengdu 610059, China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu 610059, China
| | - Dan Zhou
- College of Environment and Ecology, Chengdu University of Technology, Chengdu 610059, China
| | - Beibei Xiao
- School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
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19
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Zhang Y, Wang Y, Su K, Wang F. The influence of the oxygen vacancies on the Pt/TiO2 single-atom catalyst-a DFT study. J Mol Model 2022; 28:175. [PMID: 35641797 DOI: 10.1007/s00894-022-05123-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 04/18/2022] [Indexed: 11/26/2022]
Abstract
The titanium dioxide (TiO2) surface is suitable as a substrate for single-atom catalysts (SACs) for oxygen reduction reaction (ORR). As a common defect on TiO2, oxygen vacancies may have a significant impact on the adsorption and activity of the adatoms. This work aims to investigate whether titanium dioxide containing surface oxygen vacancies is more suitable as a base material for SACs. This paper calculates the changes in the adsorption energy of the Pt atom and the energy of the d-band center on the perfect surface and the surface containing oxygen vacancies. Concerning the perfect surface, the surface containing oxygen vacancies fixes the Pt atom more firmly and increases the center energy of the d-band of Pt, thereby improving the performance of the Pt atom as SACs. Consequently, the (110) surface of rutile TiO2 with oxygen vacancies may be the best substrate for SACs.
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Affiliation(s)
- Yongkang Zhang
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
| | - Yuhang Wang
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
| | - Kaibin Su
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China
| | - Fengping Wang
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, People's Republic of China.
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20
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Zhang L, Ren X, Zhao X, Zhu Y, Pang R, Cui P, Jia Y, Li S, Zhang Z. Synergetic Charge Transfer and Spin Selection in CO Oxidation at Neighboring Magnetic Single-Atom Catalyst Sites. Nano Lett 2022; 22:3744-3750. [PMID: 35437988 DOI: 10.1021/acs.nanolett.2c00711] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Deciphering the precise physical mechanism of interaction between an adsorbed species and a reactive site in heterogeneous catalysis is crucial for predictive design of highly efficient catalysts. Here, using first-principles calculations we identify that the two-dimensional ferromagnetic metal organic framework of Mn2C18H12 can serve as a highly efficient single-atom catalyst for spin-triplet O2 activation and CO oxidation. The underlying mechanism is via "concerted charge-spin catalysis", involving a delicate synergetic process of charge transfer, provided by the hosting Mn atom, and spin selection, preserved through active participation of its nearest neighboring Mn atoms for the crucial step of O2 activation. The synergetic mechanism is further found to be broadly applicable in O2 adsorption on magnetic X2C18H12 (X = Mn, Fe, Co, and Ni) with a well-defined linear scaling dependence between the chemical activity and spin excitation energy. The present findings provide new insights into chemical reactions wherein spin selection plays a vital role.
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Affiliation(s)
- Liying Zhang
- Key Laboratory of Material Physics Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, Henan 450001, China
- Key Laboratory for Special Functional Materials of Ministry of Education, Collaborative Innovation Center of Nano Functional Materials and Applications, School of Materials Science and Engineering, Henan University, Kaifeng 475004, China
| | - Xiaoyan Ren
- Key Laboratory of Material Physics Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Xingju Zhao
- Key Laboratory of Material Physics Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Yandi Zhu
- Key Laboratory of Material Physics Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Rui Pang
- Key Laboratory of Material Physics Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Ping Cui
- International Center for Quantum Design of Functional Materials (ICQD), Hefei National Laboratory for Physical Sciences at the Microscale, and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yu Jia
- Key Laboratory of Material Physics Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Shunfang Li
- Key Laboratory of Material Physics Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Zhenyu Zhang
- International Center for Quantum Design of Functional Materials (ICQD), Hefei National Laboratory for Physical Sciences at the Microscale, and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
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21
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Wu J, Yu YX. A theoretical descriptor for screening efficient NO reduction electrocatalysts from transition-metal atoms on N-doped BP monolayer. J Colloid Interface Sci 2022; 623:432-444. [PMID: 35597013 DOI: 10.1016/j.jcis.2022.05.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 05/04/2022] [Accepted: 05/05/2022] [Indexed: 11/29/2022]
Abstract
An electrochemical nitric oxide (NO) reduction reaction (NORR) is proposed as an attractive method for simultaneous realization of NO removal and ammonia (NH3) synthesis. Here, the potentials of 29 transition-metal atoms anchored on the nitrogen-doped BP monolayer (MN3/BP) as efficient NORR catalysts are systematically examined using first-principles calculations. Combining the adsorption Gibbs free energies of the N and OH species, a simple descriptor is constructed and a volcano plot of the NORR limiting potentials on the single atom catalysts (SACs) is established. Consequently, the MoN3/BP and IrN3/BP SACs are picked out as promising NORR electrocatalysts for NH3 synthesis with the limiting potentials of -0.10 V and -0.06 V, respectively. Their corresponding rate constants are significantly larger than or close to that of the excellent Pt(111) surface. The electronic analysis shows that the Mo-4d or Ir-5d orbitals can be well hybridized with the NO-2p orbitals, sufficiently activating the adsorbed NO species. Particularly, the MoN3/BP and IrN3/BP SACs possess high thermal stabilities and can be easily synthesized by using MoCl3 and IrCl3 as precursors, respectively. This work not only offers a simple descriptor to efficiently design NORR electrocatalysts but also provides a comprehensive atomic understanding on the mechanism of NO-to-NH3 conversion.
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Affiliation(s)
- Jie Wu
- Laboratory of Chemical Engineering Thermodynamics, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Yang-Xin Yu
- Laboratory of Chemical Engineering Thermodynamics, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China.
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22
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Feng Y, Qin J, Zhou Y, Yue Q, Wei J. Spherical mesoporous Fe-N-C single-atom nanozyme for photothermal and catalytic synergistic antibacterial therapy. J Colloid Interface Sci 2022; 606:826-836. [PMID: 34425270 DOI: 10.1016/j.jcis.2021.08.054] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/22/2021] [Accepted: 08/07/2021] [Indexed: 12/12/2022]
Abstract
Nanozyme has been regarded as an efficient antibiotic to kill bacteria using the reactive oxygen species (ROS) generated by Fenton-like reaction. However, its activity is still unsatisfied and requires large amount of hydrogen peroxide with side effects toward normal tissues. Herein, spherical mesoporous Fe-N-C single-atom nanozyme (SAzyme) is designed for antibacterial therapy via photothermal treatment enhanced Fenton-like catalysis process. Due to the large pore size (4.0 nm), high specific surface area (413.9 m2 g-1) and uniform diameter (100 nm), the catalytic performance of Fe-N-C SAzyme is greatly improved. The Michaelis-Menten constant (Km) is 4.84 mmol L-1, which is similar with that of horseradish peroxidase (3.7 mmol L-1). Moreover, mesoporous Fe-N-C SAzyme shows high photothermal conversion efficiency (23.3 %) owing to the carbon framework. The catalytic activity can be enhanced under light irradiation due to the elevated reaction temperature. The bacteria can also be killed via physical heat effect. Due to the synergistic effect of nanozyme catalysis and photothermal treatment, the antibacterial performance is much higher than that using single antibacterial method. This work provides an alternative for combined antibacterial treatment via photothermal treatment assisted catalytic process using spherical mesoporous single-atom nanozyme as an antibiotic.
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Affiliation(s)
- Youyou Feng
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Jing Qin
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yu Zhou
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Qin Yue
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.
| | - Jing Wei
- Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
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23
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Zhang S, Lv X, Wang J, Wang T, Shan J. Catalytic oxidation of CH 4 into CH 3OH using C 24N 24-supported single-atom catalyst. J Mol Model 2021; 27:346. [PMID: 34748110 DOI: 10.1007/s00894-021-04971-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 10/27/2021] [Indexed: 11/26/2022]
Abstract
Methanol is a promising source that can replace non-renewable petroleum energy. Therefore, it is of great importance to oxidize the methane into methanol because methane is not easy to transport although its huge reserves. The stability between TM (Ti, V) atoms and C24N24 is firstly studied through DFT calculations. The results show that the binding energy between TM and C24N24(Ti@C24N24 = - 9.0 eV, V@C24N24 = - 8.0 eV) is more negative than its cohesive energy (Ti = - 5.6 eV, V = - 5.6 eV), indicating TM@C24N24 possess good stability. On this basis, the oxidation process of methane to methanol is further studied on the TM@C24N24 single-atom catalysis using N2O as the oxidant. The results show that N2O is firstly adsorbed on TM@C24N24, and then directly decomposed into N2 and Oads. N2 is released and only Oads is adsorbed on C24N24 as active oxygen for the following catalytic methane oxidation to methanol process. The process includes two steps: (1) CH4 + Oads → CH3* + OH*, the reaction barriers in this process are 1.2 eV (Ti) and 1.5 eV (V); (2) CH3* + OH* → CH3OH, the reaction barriers are 1.8 eV (Ti) and 1.8 eV (V) in this step. Finally, the obtained CH3OH molecule will leave the surface of TM@C24N24 single-atom catalyst and the energy required for this step is 1.4 eV (Ti) and 1.0 eV (V), respectively. These findings provide theoretical guidance for the catalytic oxidation of CH4 to CH3OH using TM (Ti,V)@C24N24 single-atom catalysts.
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Affiliation(s)
- Shujie Zhang
- Henan Key Laboratory of Materials On Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, 454003, China
| | - Xiaojing Lv
- Henan Key Laboratory of Materials On Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, 454003, China
| | - Junkai Wang
- Henan Key Laboratory of Materials On Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, 454003, China.
| | - Tianqi Wang
- Henan Key Laboratory of Materials On Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, 454003, China
| | - Jingyi Shan
- Henan Key Laboratory of Materials On Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, 454003, China
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24
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Li JC, Qin X, Xiao F, Liang C, Xu M, Meng Y, Sarnello E, Fang L, Li T, Ding S, Lyu Z, Zhu S, Pan X, Hou PX, Liu C, Lin Y, Shao M. Highly Dispersive Cerium Atoms on Carbon Nanowires as Oxygen Reduction Reaction Electrocatalysts for Zn-Air Batteries. Nano Lett 2021; 21:4508-4515. [PMID: 33998804 DOI: 10.1021/acs.nanolett.1c01493] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Highly efficient noble-metal-free electrocatalysts for oxygen reduction reaction (ORR) are essential to reduce the costs of fuel cells and metal-air batteries. Herein, a single-atom Ce-N-C catalyst, constructed of atomically dispersed Ce anchored on N-doped porous carbon nanowires, is proposed to boost the ORR. This catalyst has a high Ce content of 8.55 wt % and a high activity with ORR half-wave potentials of 0.88 V in alkaline media and 0.75 V in acidic electrolytes, which are comparable to widely studied Fe-N-C catalysts. A Zn-air battery based on this material shows excellent performance and durability. Density functional theory calculations reveal that atomically dispersed Ce with adsorbed hydroxyl species (OH) can significantly reduce the energy barrier of the rate-determining step resulting in an improved ORR activity.
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Affiliation(s)
- Jin-Cheng Li
- Fok Ying Tung Research Institute, Hong Kong University of Science and Technology, Guangzhou 511458, China
- School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Xueping Qin
- Department of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Fei Xiao
- Department of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Caihong Liang
- Department of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Mingjie Xu
- Fok Ying Tung Research Institute, Hong Kong University of Science and Technology, Guangzhou 511458, China
- Department of Chemical Engineering and Materials Science, University of California Irvine, Irvine, California 92697, United States
| | - Yu Meng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Erik Sarnello
- Department of Chemistry and Biochemistry, Northern Illinois University, 1425 W. Lincoln Highway, DeKalb, Illinois 60115, United States
- X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439, United States
| | - Lingzhe Fang
- Department of Chemistry and Biochemistry, Northern Illinois University, 1425 W. Lincoln Highway, DeKalb, Illinois 60115, United States
- X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439, United States
| | - Tao Li
- Department of Chemistry and Biochemistry, Northern Illinois University, 1425 W. Lincoln Highway, DeKalb, Illinois 60115, United States
- X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439, United States
| | - Shichao Ding
- School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Zhaoyuan Lyu
- School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Shangqian Zhu
- Department of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Xiaoqing Pan
- Department of Chemical Engineering and Materials Science, University of California Irvine, Irvine, California 92697, United States
| | - Peng-Xiang Hou
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Chang Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Yuehe Lin
- School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Minhua Shao
- Fok Ying Tung Research Institute, Hong Kong University of Science and Technology, Guangzhou 511458, China
- Department of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- Energy Institute, Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), and Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong China
- HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen 518057, China
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25
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Gonçalves AAS, Ciesielczyk F, Samojeden B, Jaroniec M. Toward development of single-atom ceramic catalysts for selective catalytic reduction of NO with NH 3. J Hazard Mater 2021; 401:123413. [PMID: 32763703 DOI: 10.1016/j.jhazmat.2020.123413] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 06/21/2020] [Accepted: 07/03/2020] [Indexed: 06/11/2023]
Abstract
Insertion of transition metal species into crystalline alumina at low temperatures is proposed to achieve the dispersion of these species at atomic level paired with exceptional textural properties. Precisely, MeAl2O4/γ-Al2O3 (Me = Mn, Fe, Co, Ni, and/or Cu) nanostructured ceramic catalysts were fabricated with ultra large mesopores (16-30 nm), and high specific surface area (180-290 m2 g-1) and pore volume (1.1-1.6 cm3 g-1). These ceramics were applied as efficient catalysts for the selective catalytic reduction (SCR) of NO with NH3, and their selectivity was discussed in terms of N2O formation, an undesirable byproduct. The catalysts containing Fe, Cu, or Mn showed the highest activities, however, within different temperature ranges. Further tuning of the catalytic activity and selectivity was achieved by creating ceramic catalysts with mixed compositions, e.g., CuFe and MnFe. Upon insertion of the transition metal species into crystalline structure of alumina to maximize atom efficiency, the N2O formation profile did not change significantly for all metal aluminates except MnAl2O4, indicating that these catalysts are suitable for SCR and selectively promote the reduction of NO.
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Affiliation(s)
- Alexandre A S Gonçalves
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44240, United States
| | - Filip Ciesielczyk
- Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Poznan University of Technology, PL-60965 Poznan, Poland
| | - Bogdan Samojeden
- Faculty of Energy and Fuels, AGH University of Science and Technology, PL-30059 Krakow, Poland
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry, Kent State University, Kent, OH 44240, United States.
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26
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Huang LZ, Zhou C, Shen M, Gao E, Zhang C, Hu XM, Chen Y, Xue Y, Liu Z. Persulfate activation by two-dimensional MoS 2 confining single Fe atoms: Performance, mechanism and DFT calculations. J Hazard Mater 2020; 389:122137. [PMID: 32004841 DOI: 10.1016/j.jhazmat.2020.122137] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 01/14/2020] [Accepted: 01/18/2020] [Indexed: 06/10/2023]
Abstract
Developing efficient catalysts for persulfate (PS) activation is important for the potential application of sulfate-radical-based advanced oxidation process. Herein, we demonstrate single iron atoms confined in MoS2 nanosheets with dual catalytic sites and synergistic catalysis as highly reactive and stable catalysts for efficient catalytic oxidation of recalcitrant organic pollutants via activation of PS. The dual reaction sites and the interaction between Fe and Mo greatly enhance the catalytic performance for PS activation. The radical scavenger experiments and electron paramagnetic resonance results confirm and SO4- rather than HO is responsible for aniline degradation. The high catalytic performance of Fe0.36Mo0.64S2 was interpreted by density functional theory (DFT) calculations via strong metal-support interactions and the low formal oxidation state of Fe in FexMo1-xS2. FexMo1-xS2/PS system can effectively remove various persistent organic pollutants and works well in a real water environment. Also, FexMo1-xS2 can efficiently activate peroxymonosulfate, sulfite and H2O2, suggesting its potential practical applications under various circumstances.
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Affiliation(s)
- Li-Zhi Huang
- School of Civil Engineering, Wuhan University, No. 8, East Lake South Road, Wuhan 430072, China
| | - Chu Zhou
- School of Civil Engineering, Wuhan University, No. 8, East Lake South Road, Wuhan 430072, China
| | - Miaolong Shen
- School of Civil Engineering, Wuhan University, No. 8, East Lake South Road, Wuhan 430072, China
| | - Enlai Gao
- School of Civil Engineering, Wuhan University, No. 8, East Lake South Road, Wuhan 430072, China
| | - Chunbo Zhang
- School of Civil Engineering, Wuhan University, No. 8, East Lake South Road, Wuhan 430072, China
| | - Xin-Ming Hu
- Carbon Dioxide Activation Center, Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Gustav Wieds Vej 14, DK-8000, Aarhus C, Denmark
| | - Yiqun Chen
- School of Civil Engineering, Wuhan University, No. 8, East Lake South Road, Wuhan 430072, China.
| | - Yingwen Xue
- School of Civil Engineering, Wuhan University, No. 8, East Lake South Road, Wuhan 430072, China
| | - Zizheng Liu
- School of Civil Engineering, Wuhan University, No. 8, East Lake South Road, Wuhan 430072, China.
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27
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Liu D, Li JC, Shi Q, Feng S, Lyu Z, Ding S, Hao L, Zhang Q, Wang C, Xu M, Li T, Sarnello E, Du D, Lin Y. Atomically Isolated Iron Atom Anchored on Carbon Nanotubes for Oxygen Reduction Reaction. ACS Appl Mater Interfaces 2019; 11:39820-39826. [PMID: 31560188 DOI: 10.1021/acsami.9b12054] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Recently, electrocatalysts based on anchored dispersive/isolated single metal atoms on conductive carbon supports have demonstrated great promise to substitute costly Pt for the oxygen reduction reaction (ORR) in the field of fuel cells or metal-air batteries. However, developments of cost-efficient single-atom Fe catalysts with high activities are still facing various hardships. Here, we developed a facile way to synthesize isolated iron atoms anchored on the carbon nanotube (CNT) involving a one-pot pyrrole polymerization on a self-degraded organic template and a subsequent pyrolysis. The as-obtained electrocatalyst possessed unique characteristics of abundant nanopores in the wall of conductive CNTs to host the abundant atomic Fe-Nx active sites, showing ultrahigh ORR activity (half-wave potential: 0.93 V, kinetic current density: 59.8 mA/cm2 at 0.8 V), better than that of commercial Pt/C (half-wave potential: 0.91 V; kinetic current density: 38.0 mA/cm2 at 0.8 V) in an alkaline electrolyte. Furthermore, good ORR activity has been proven in acidic solution with a half-wave-potential of 0.73 V.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Mingjie Xu
- Irvine Materials Research Institute (IMRI) , University of California , Irvine , California 92697 , United States
| | - Tao Li
- Department of Chemistry and Biochemistry , Northern Illinois University , DeKalb , Illinois 60115 , United States
- X-ray Science Division , Argonne National Laboratory , Lemont , Illinois 60439 , United States
| | - Erik Sarnello
- X-ray Science Division , Argonne National Laboratory , Lemont , Illinois 60439 , United States
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28
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Liu P, Zhao Y, Qin R, Gu L, Zhang P, Fu G, Zheng N. A vicinal effect for promoting catalysis of Pd 1/TiO 2: supports of atomically dispersed catalysts play more roles than simply serving as ligands. Sci Bull (Beijing) 2018; 63:675-682. [PMID: 36658816 DOI: 10.1016/j.scib.2018.03.002] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 02/28/2018] [Accepted: 03/07/2018] [Indexed: 01/21/2023]
Abstract
Atomically dispersing metal atoms on supports has been emerging as an effective strategy to maximize the atom utilization of metals for catalysis. However, due to the lack of effective tools to characterize the detailed structure of metal-support interface, the chemical functions of supports in atomically dispersed metal catalysts are hardly elucidated at the molecular level. In this work, an atomically dispersed Pd1/TiO2 catalyst with Ti(III) vicinal to Pd is prepared and used to demonstrate the direct involvement of metal atoms on support in the catalysis of dispersed metal atoms. Systematic studies reveal that the Ti(III)-O-Pd interface facilitates the activation of O2 into superoxide (O2-), thus promoting the catalytic oxidation. The catalyst exhibits the highest CO turn-over frequency among ever-reported Pd-based catalysts, and enhanced catalysis in the combustion of harmful volatile organic compound (i.e., toluene) and green-house gas (i.e., methane). The demonstrated direct involvement of metal atoms on oxide support suggests that the real active sites of atomically dispersed metal catalysts can be far beyond isolated metal atoms themselves. Metal atoms on oxide supports in the vicinity serve as another vector to promote the catalysis of atomically dispersed metal catalysts.
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Affiliation(s)
- Pengxin Liu
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yun Zhao
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ruixuan Qin
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Lin Gu
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Peng Zhang
- Department of Chemistry, Dalhousie University, Halifax, NS B3H4R2, Canada
| | - Gang Fu
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Nanfeng Zheng
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
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