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Chen J, Zhang F, Kuang M, Wang L, Wang H, Li W, Yang J. Unveiling synergy of strain and ligand effects in metallic aerogel for electrocatalytic polyethylene terephthalate upcycling. Proc Natl Acad Sci U S A 2024; 121:e2318853121. [PMID: 38630722 PMCID: PMC11047115 DOI: 10.1073/pnas.2318853121] [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: 10/27/2023] [Accepted: 03/06/2024] [Indexed: 04/19/2024] Open
Abstract
Recently, there has been a notable surge in interest regarding reclaiming valuable chemicals from waste plastics. However, the energy-intensive conventional thermal catalysis does not align with the concept of sustainable development. Herein, we report a sustainable electrocatalytic approach allowing the selective synthesis of glycolic acid (GA) from waste polyethylene terephthalate (PET) over a Pd67Ag33 alloy catalyst under ambient conditions. Notably, Pd67Ag33 delivers a high mass activity of 9.7 A mgPd-1 for ethylene glycol oxidation reaction (EGOR) and GA Faradaic efficiency of 92.7 %, representing the most active catalyst for selective GA synthesis. In situ experiments and computational simulations uncover that ligand effect induced by Ag incorporation enhances the GA selectivity by facilitating carbonyl intermediates desorption, while the lattice mismatch-triggered tensile strain optimizes the adsorption of *OH species to boost reaction kinetics. This work unveils the synergistic of strain and ligand effect in alloy catalyst and provides guidance for the design of future catalysts for PET upcycling. We further investigate the versatility of Pd67Ag33 catalyst on CO2 reduction reaction (CO2RR) and assemble EGOR//CO2RR integrated electrolyzer, presenting a pioneering demonstration for reforming waste carbon resource (i.e., PET and CO2) into high-value chemicals.
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Affiliation(s)
- Junliang Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai201620, China
| | - Fangzhou Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai201620, China
| | - Min Kuang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai201620, China
| | - Li Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai201620, China
| | - Huaping Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai201620, China
| | - Wei Li
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai200433, China
| | - Jianping Yang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai201620, China
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Jiang N, Zhu L, Liu P, Zhang P, Gan Y, Zhao Y, Jiang Y. Laser Irradiation Synthesis of AuPd Alloy with Decreased Alloying Degree for Efficient Ethanol Oxidation Reaction. Materials (Basel) 2024; 17:1876. [PMID: 38673231 PMCID: PMC11052525 DOI: 10.3390/ma17081876] [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: 03/25/2024] [Revised: 04/12/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024]
Abstract
The preparation of electrocatalysts with high performance for the ethanol oxidation reaction is vital for the large-scale commercialization of direct ethanol fuel cells. Here, we successfully synthesized a high-performance electrocatalyst of a AuPd alloy with a decreased alloying degree via pulsed laser irradiation in liquids. As indicated by the experimental results, the photochemical effect-induced surficial deposition of Pd atoms, combined with the photothermal effect-induced interdiffusion of Au and Pd atoms, resulted in the formation of AuPd alloys with a decreased alloying degree. Structural characterization reveals that L-AuPd exhibits a lower degree of alloying compared to C-AuPd prepared via the conventional co-reduction method. This distinct structure endows L-AuPd with outstanding catalytic activity and stability in EOR, achieving mass and specific activities as high as 16.01 A mgPd-1 and 20.69 mA cm-2, 9.1 and 5.2 times than that of the commercial Pd/C respectively. Furthermore, L-AuPd retains 90.1% of its initial mass activity after 300 cycles. This work offers guidance for laser-assisted fabrication of efficient Pd-based catalysts in EOR.
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Affiliation(s)
- Nan Jiang
- School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing 100124, China; (N.J.); (L.Z.); (P.L.); (P.Z.); (Y.G.); (Y.J.)
- Key Laboratory of Trans-Scale Laser Manufacturing Technology, Beijing University of Technology, Ministry of Education, Beijing 100124, China
- Beijing Engineering Research Centre of Laser Technology, Beijing University of Technology, Beijing 100124, China
| | - Liye Zhu
- School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing 100124, China; (N.J.); (L.Z.); (P.L.); (P.Z.); (Y.G.); (Y.J.)
- Key Laboratory of Trans-Scale Laser Manufacturing Technology, Beijing University of Technology, Ministry of Education, Beijing 100124, China
- Beijing Engineering Research Centre of Laser Technology, Beijing University of Technology, Beijing 100124, China
| | - Peng Liu
- School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing 100124, China; (N.J.); (L.Z.); (P.L.); (P.Z.); (Y.G.); (Y.J.)
| | - Pengju Zhang
- School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing 100124, China; (N.J.); (L.Z.); (P.L.); (P.Z.); (Y.G.); (Y.J.)
- Key Laboratory of Trans-Scale Laser Manufacturing Technology, Beijing University of Technology, Ministry of Education, Beijing 100124, China
- Beijing Engineering Research Centre of Laser Technology, Beijing University of Technology, Beijing 100124, China
| | - Yuqi Gan
- School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing 100124, China; (N.J.); (L.Z.); (P.L.); (P.Z.); (Y.G.); (Y.J.)
- Key Laboratory of Trans-Scale Laser Manufacturing Technology, Beijing University of Technology, Ministry of Education, Beijing 100124, China
- Beijing Engineering Research Centre of Laser Technology, Beijing University of Technology, Beijing 100124, China
| | - Yan Zhao
- School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing 100124, China; (N.J.); (L.Z.); (P.L.); (P.Z.); (Y.G.); (Y.J.)
- Key Laboratory of Trans-Scale Laser Manufacturing Technology, Beijing University of Technology, Ministry of Education, Beijing 100124, China
- Beijing Engineering Research Centre of Laser Technology, Beijing University of Technology, Beijing 100124, China
| | - Yijian Jiang
- School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing 100124, China; (N.J.); (L.Z.); (P.L.); (P.Z.); (Y.G.); (Y.J.)
- Key Laboratory of Trans-Scale Laser Manufacturing Technology, Beijing University of Technology, Ministry of Education, Beijing 100124, China
- Beijing Engineering Research Centre of Laser Technology, Beijing University of Technology, Beijing 100124, China
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Ran W, Zhao H, Zhang X, Li S, Sun JF, Liu J, Liu R, Jiang G. Critical Review of Pd-Catalyzed Reduction Process for Treatment of Waterborne Pollutants. Environ Sci Technol 2024. [PMID: 38323894 DOI: 10.1021/acs.est.3c09198] [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: 02/08/2024]
Abstract
Catalyzed reduction processes have been recognized as important and supplementary technologies for water treatment, with the specific aims of resource recovery, enhancement of bio/chemical-treatability of persistent organic pollutants, and safe handling of oxygenate ions. Palladium (Pd) has been widely used as a catalyst/electrocatalyst in these reduction processes. However, due to the limited reserves and high cost of Pd, it is essential to gain a better understanding of the Pd-catalyzed decontamination process to design affordable and sustainable Pd catalysts. This review provides a systematic summary of recent advances in understanding Pd-catalyzed reductive decontamination processes and designing Pd-based nanocatalysts for the reductive treatment of water-borne pollutants, with special focus on the interactions and transformation mechanisms of pollutant molecules on Pd catalysts at the atomic scale. The discussion begins by examining the adsorption of pollutants onto Pd sites from a thermodynamic viewpoint. This is followed by an explanation of the molecular-level reaction mechanism, demonstrating how electron-donors participate in the reductive transformation of pollutants. Next, the influence of the Pd reactive site structure on catalytic performance is explored. Additionally, the process of Pd-catalyzed reduction in facilitating the oxidation of pollutants is briefly discussed. The longevity of Pd catalysts, a crucial factor in determining their practicality, is also examined. Finally, we argue for increased attention to mechanism study, as well as precise construction of Pd sites under batch synthesis conditions, and the use of Pd-based catalysts/electrocatalysts in the treatment of concentrated pollutants to facilitate resource recovery.
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Affiliation(s)
- Wei Ran
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huachao Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoling Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shiwei Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jie-Fang Sun
- Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Jingfu Liu
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rui Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Xu Y, Wu D, Zhang Q, Rao P, Deng P, Tang M, Li J, Hua Y, Wang C, Zhong S, Jia C, Liu Z, Shen Y, Gu L, Tian X, Liu Q. Regulating Au coverage for the direct oxidation of methane to methanol. Nat Commun 2024; 15:564. [PMID: 38233390 PMCID: PMC10794185 DOI: 10.1038/s41467-024-44839-6] [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: 03/17/2023] [Accepted: 01/08/2024] [Indexed: 01/19/2024] Open
Abstract
The direct oxidation of methane to methanol under mild conditions is challenging owing to its inadequate activity and low selectivity. A key objective is improving the selective oxidation of the first carbon-hydrogen bond of methane, while inhibiting the oxidation of the remaining carbon-hydrogen bonds to ensure high yield and selectivity of methanol. Here we design ultrathin PdxAuy nanosheets and revealed a volcano-type relationship between the binding strength of hydroxyl radical on the catalyst surface and catalytic performance using experimental and density functional theory results. Our investigations indicate a trade-off relationship between the reaction-triggering and reaction-conversion steps in the reaction process. The optimized Pd3Au1 nanosheets exhibits a methanol production rate of 147.8 millimoles per gram of Pd per hour, with a selectivity of 98% at 70 °C, representing one of the most efficient catalysts for the direct oxidation of methane to methanol.
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Affiliation(s)
- Yueshan Xu
- School of Marine Science and Engineering, Hainan Provincial Key Lab of Fine Chemistry, School of Chemistry and Chemical Engineering, Hainan University, Haikou, 570228, China
| | - Daoxiong Wu
- School of Marine Science and Engineering, Hainan Provincial Key Lab of Fine Chemistry, School of Chemistry and Chemical Engineering, Hainan University, Haikou, 570228, China
| | - Qinghua Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Peng Rao
- School of Marine Science and Engineering, Hainan Provincial Key Lab of Fine Chemistry, School of Chemistry and Chemical Engineering, Hainan University, Haikou, 570228, China
| | - Peilin Deng
- School of Marine Science and Engineering, Hainan Provincial Key Lab of Fine Chemistry, School of Chemistry and Chemical Engineering, Hainan University, Haikou, 570228, China.
| | - Mangen Tang
- School of Marine Science and Engineering, Hainan Provincial Key Lab of Fine Chemistry, School of Chemistry and Chemical Engineering, Hainan University, Haikou, 570228, China
| | - Jing Li
- School of Marine Science and Engineering, Hainan Provincial Key Lab of Fine Chemistry, School of Chemistry and Chemical Engineering, Hainan University, Haikou, 570228, China
| | - Yingjie Hua
- Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province, School of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China
| | - Chongtai Wang
- Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province, School of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China
| | - Shengkui Zhong
- College of Marine Science & Technology, Hainan Tropical Ocean University, Sanya, 572022, China
| | - Chunman Jia
- School of Marine Science and Engineering, Hainan Provincial Key Lab of Fine Chemistry, School of Chemistry and Chemical Engineering, Hainan University, Haikou, 570228, China
| | - Zhongxin Liu
- School of Marine Science and Engineering, Hainan Provincial Key Lab of Fine Chemistry, School of Chemistry and Chemical Engineering, Hainan University, Haikou, 570228, China
| | - Yijun Shen
- School of Marine Science and Engineering, Hainan Provincial Key Lab of Fine Chemistry, School of Chemistry and Chemical Engineering, Hainan University, Haikou, 570228, China
| | - Lin Gu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.
- School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
| | - Xinlong Tian
- School of Marine Science and Engineering, Hainan Provincial Key Lab of Fine Chemistry, School of Chemistry and Chemical Engineering, Hainan University, Haikou, 570228, China.
| | - Quanbing Liu
- Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
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5
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Abstract
The potential of operando X-ray techniques for following the structure, fate, and active site of single-atom catalysts (SACs) is highlighted with emphasis on a synergetic approach of both topics. X-ray absorption spectroscopy (XAS) and related X-ray techniques have become fascinating tools to characterize solids and they can be applied to almost all the transition metals deriving information about the symmetry, oxidation state, local coordination, and many more structural and electronic properties. SACs, a newly coined concept, recently gained much attention in the field of heterogeneous catalysis. In this way, one can achieve a minimum use of the metal, theoretically highest efficiency, and the design of only one active site-so-called single site catalysts. While single sites are not easy to characterize especially under operating conditions, XAS as local probe together with complementary methods (infrared spectroscopy, electron microscopy) is ideal in this research area to prove the structure of these sites and the dynamic changes during reaction. In this review, starting from their fundamentals, various techniques related to conventional XAS and X-ray photon in/out techniques applied to single sites are discussed with detailed mechanistic and in situ/operando studies. We systematically summarize the design strategies of SACs and outline their exploration with XAS supported by density functional theory (DFT) calculations and recent machine learning tools.
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Affiliation(s)
- Bidyut Bikash Sarma
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany,Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, Hermann-von-Helmholtz Platz 1, Eggenstein-Leopoldshafen, 76344 Karlsruhe, Germany,
| | - Florian Maurer
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany
| | - Dmitry E. Doronkin
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany,Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, Hermann-von-Helmholtz Platz 1, Eggenstein-Leopoldshafen, 76344 Karlsruhe, Germany
| | - Jan-Dierk Grunwaldt
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany,Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, Hermann-von-Helmholtz Platz 1, Eggenstein-Leopoldshafen, 76344 Karlsruhe, Germany,
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Swain S, Altaee A, Saxena M, Samal AK. A comprehensive study on heterogeneous single atom catalysis: Current progress, and challenges☆. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Li S, Zhao H, Ran W, Liu J, Liu R. The bimetallic effect promotes the activity of Rh in catalyzed selective hydrogenation of phenol. Chem Commun (Camb) 2022; 58:10357-10360. [PMID: 36004767 DOI: 10.1039/d2cc03571e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Au@RhPd ultrathin nanowires are designed as a highly reactive and selective catalyst for the hydrogenation of phenol under ambient conditions. Au NWs modulate the electronic state of Rh atoms to enhance the adsorption of phenol and desorption of cyclohexanone. Pd works as a cocatalyst to activate H2 to H* and spillover to Rh sites. This new catalyst shows a turnover frequency of up to 560 h-1 for a wide spectrum of phenols with >80% selectivity toward cyclohexanones.
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Affiliation(s)
- Shiwei Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. .,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Huachao Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. .,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wei Ran
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
| | - Jingfu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. .,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China.,School of Environment, Hangzhou Institute of Advanced Study, UCAS, Hangzhou, 310024, China
| | - Rui Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China. .,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China.,School of Environment, Hangzhou Institute of Advanced Study, UCAS, Hangzhou, 310024, China
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Li Z, Xu J, Meng F, Yang K, Lin D. Modification of Pd Nanoparticles with Lower Work Function Elements for Enhanced Formic Acid Dehydrogenation and Trichloroethylene Dechlorination. ACS Appl Mater Interfaces 2022; 14:30735-30745. [PMID: 35767248 DOI: 10.1021/acsami.2c05099] [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: 06/15/2023]
Abstract
Catalytic degradation of halogenated contaminants by palladium (Pd) is a promising technology for environmental remediation. However, the low utilization of H by Pd catalyst and its easy poisoning prevent its applications. Here, low work function elements (B or Ag) were incorporated into Fe@C-supported Pd nanoparticles (NPs) to alter their crystalline structure and induce electronic effects, addressing these issues. The Pd mass-normalized dechlorination rates of trichloroethylene (TCE) by Fe@C-Pd-B and Fe@C-Pd-Ag were 51 and 59 times higher than that of unmodified Fe@C-Pd, respectively. The H utilization efficiency of Fe@C-Pd-B and Fe@C-Pd-Ag was 5.4 and 7.2 times higher than that of unmodified Fe@C-Pd, respectively. Various characterizations suggest that the B or Ag incorporation induced the charge redistribution and elevated the electron density of Pd atoms, resulting in the enhanced formic acid (FA) dehydrogenation and TCE dechlorination. Although the Ag incorporation presented a relatively higher H utilization due to the suppressed combination of H and accumulation of unsaturated hydrocarbons (i.e., C2H4), the Fe@C-Pd-Ag was easily deactivated. In contrast, the B incorporation enabled the Pd NPs with a good stability. These findings can guide the rational design of robust Pd-based catalysts for efficient and selective FA dehydrogenation and chlorinated contaminant degradation.
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Affiliation(s)
- Zhenjie Li
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Jiang Xu
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Fanxu Meng
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Kun Yang
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Daohui Lin
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
- Zhejiang Ecological Civilization Academy, Anji 313300, China
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Chen Y, Feng C, Wang W, Liu Z, Li J, Liu C, Pan Y, Liu Y. Electronic structure engineering of bimetallic Pd-Au alloy nanocatalysts for improving electrocatalytic hydrodechlorination performance. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Hurley N, McGuire SC, Wong SS. Assessing the Catalytic Behavior of Platinum Group Metal-Based Ultrathin Nanowires Using X-ray Absorption Spectroscopy. ACS Appl Mater Interfaces 2021; 13:58253-58260. [PMID: 34851084 DOI: 10.1021/acsami.1c17595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Ultrathin metal-based nanowires have excelled as electrocatalysts in small-molecule reactions, such as the oxygen reduction reaction (ORR), the methanol oxidation reaction (MOR), and the ethanol oxidation reaction (EOR), and have consistently outperformed analogous Pt/C standards. As such, a detailed understanding of the structural and electronic properties of ultrathin nanowires is essential in terms of understanding structure-property correlations, which are crucial in the rational design of ever more sophisticated electrocatalysts. X-ray absorption spectroscopy (XAS) represents an important and promising characterization technique with which to acquire unique insights into the electronic structure and the local atomic structure of nanomaterials. Herein, we discuss tangible examples of how both ex situ and in situ XAS experiments have been recently applied to probing the complex behavior of ultrathin nanowires used in electrocatalysis. Moreover, based on this precedence, we provide ideas about the future potential and direction of these ongoing efforts.
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Affiliation(s)
- Nathaniel Hurley
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
| | - Scott C McGuire
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
| | - Stanislaus S Wong
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
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11
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Wang Y, Wang D, Li Y. Rational Design of Single-Atom Site Electrocatalysts: From Theoretical Understandings to Practical Applications. Adv Mater 2021; 33:e2008151. [PMID: 34240475 DOI: 10.1002/adma.202008151] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/18/2021] [Indexed: 05/03/2023]
Abstract
Atomically dispersed metal-based electrocatalysts have attracted increasing attention due to their nearly 100% atomic utilization and excellent catalytic performance. However, current fundamental comprehension and summaries to reveal the underlying relationship between single-atom site electrocatalysts (SACs) and corresponding catalytic application are rarely reported. Herein, the fundamental understandings and intrinsic mechanisms underlying SACs and corresponding electrocatalytic applications are systemically summarized. Different preparation strategies are presented to reveal the synthetic strategies with engineering the well-defined SACs on the basis of theoretical principle (size effect, metal-support interactions, electronic structure effect, and coordination environment effect). Then, an overview of the electrocatalytic applications is presented, including oxygen reduction reaction, hydrogen evolution reaction, oxygen evolution reaction, oxidation of small organic molecules, carbon dioxide reduction reaction, and nitrogen reduction reaction. The underlying structure-performance relationship between SACs and electrocatalytic reactions is also discussed in depth to expound the enhancement mechanisms. Finally, a summary is provided and a perspective supplied to demonstrate the current challenges and opportunities for rational designing, synthesizing, and modulating the advanced SACs toward electrocatalytic reactions.
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Affiliation(s)
- Yao Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
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12
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Affiliation(s)
- Javier Fonseca
- Nanomaterial Laboratory for Catalysis and Advanced Separations, Department of Chemical Engineering, Northeastern University, 313 Snell Engineering Center, 360 Huntington Avenue, Boston, Massachusetts 02115-5000, United States
| | - Junling Lu
- Department of Chemical Physics, Hefei National Laboratory for Physical Sciences at the Microscale, iChEM, University of Science and Technology of China, Hefei, Anhui 230026, China
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13
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Zhang K, Zhang Z, Zhou X, Zhang N. Gold Nanowires – Assisted Prussian Blue Enhancing Peroxidase – Like Activity for the Non‐enzymatic Electrochemically Sensing H
2
O
2
Released From Living Cells. ELECTROANAL 2021. [DOI: 10.1002/elan.202060506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Keying Zhang
- Anhui Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institues; School of Chemistry and Chemical Engineering Suzhou University Suzhou Anhui 234000 China
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 China
| | - Ziqing Zhang
- Anhui Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institues; School of Chemistry and Chemical Engineering Suzhou University Suzhou Anhui 234000 China
| | - Xiaolong Zhou
- Anhui Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institues; School of Chemistry and Chemical Engineering Suzhou University Suzhou Anhui 234000 China
| | - Na Zhang
- Anhui Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institues; School of Chemistry and Chemical Engineering Suzhou University Suzhou Anhui 234000 China
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14
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Wei J, Qin SN, Yang J, Ya HL, Huang WH, Zhang H, Hwang BJ, Tian ZQ, Li JF. Probing Single-Atom Catalysts and Catalytic Reaction Processes by Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy. Angew Chem Int Ed Engl 2021; 60:9306-9310. [PMID: 33523581 DOI: 10.1002/anie.202100198] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [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: 01/06/2021] [Indexed: 02/03/2023]
Abstract
Developing advanced characterization techniques for single-atom catalysts (SACs) is of great significance to identify their structural and catalytic properties. Raman spectroscopy can provide molecular structure information, and thus, the technique is a promising tool for catalysis. However, its application in SACs remains a great challenge because of its low sensitivity. We develop a highly sensitive strategy that achieves the characterization of the structure of SACs and in situ monitoring of the catalytic reaction processes on them by shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) for the first time. Using the strategy, Pd SACs on different supports were identified by Raman spectroscopy and the nucleation process of Pd species from single atoms to nanoparticles was revealed. Moreover, the catalytic reaction processes of the hydrogenation of nitro compounds on Pd SACs were monitored in situ, and molecular insights were obtained to uncover the unique catalytic properties of SACs. This work provides a new spectroscopic tool for the in situ study of SACs, especially at solid-liquid interfaces.
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Affiliation(s)
- Jie Wei
- College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM, College of Chemistry and Chemical Engineering, Fujian Key Laboratory of Advanced Materials, College of Energy, Xiamen University, Xiamen, 361005, China
| | - Si-Na Qin
- College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM, College of Chemistry and Chemical Engineering, Fujian Key Laboratory of Advanced Materials, College of Energy, Xiamen University, Xiamen, 361005, China
| | - Ji Yang
- College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM, College of Chemistry and Chemical Engineering, Fujian Key Laboratory of Advanced Materials, College of Energy, Xiamen University, Xiamen, 361005, China
| | - Han-Long Ya
- College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM, College of Chemistry and Chemical Engineering, Fujian Key Laboratory of Advanced Materials, College of Energy, Xiamen University, Xiamen, 361005, China
| | - Wei-Hsiang Huang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Hua Zhang
- College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM, College of Chemistry and Chemical Engineering, Fujian Key Laboratory of Advanced Materials, College of Energy, Xiamen University, Xiamen, 361005, China
| | - Bing Joe Hwang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Zhong-Qun Tian
- College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM, College of Chemistry and Chemical Engineering, Fujian Key Laboratory of Advanced Materials, College of Energy, Xiamen University, Xiamen, 361005, China
| | - Jian-Feng Li
- College of Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM, College of Chemistry and Chemical Engineering, Fujian Key Laboratory of Advanced Materials, College of Energy, Xiamen University, Xiamen, 361005, China
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15
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Wei J, Qin S, Yang J, Ya H, Huang W, Zhang H, Hwang BJ, Tian Z, Li J. Probing Single‐Atom Catalysts and Catalytic Reaction Processes by Shell‐Isolated Nanoparticle‐Enhanced Raman Spectroscopy. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100198] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Jie Wei
- College of Materials State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM College of Chemistry and Chemical Engineering Fujian Key Laboratory of Advanced Materials College of Energy Xiamen University Xiamen 361005 China
| | - Si‐Na Qin
- College of Materials State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM College of Chemistry and Chemical Engineering Fujian Key Laboratory of Advanced Materials College of Energy Xiamen University Xiamen 361005 China
| | - Ji Yang
- College of Materials State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM College of Chemistry and Chemical Engineering Fujian Key Laboratory of Advanced Materials College of Energy Xiamen University Xiamen 361005 China
| | - Han‐Long Ya
- College of Materials State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM College of Chemistry and Chemical Engineering Fujian Key Laboratory of Advanced Materials College of Energy Xiamen University Xiamen 361005 China
| | - Wei‐Hsiang Huang
- Department of Chemical Engineering National Taiwan University of Science and Technology Taipei 10607 Taiwan
| | - Hua Zhang
- College of Materials State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM College of Chemistry and Chemical Engineering Fujian Key Laboratory of Advanced Materials College of Energy Xiamen University Xiamen 361005 China
| | - Bing Joe Hwang
- Department of Chemical Engineering National Taiwan University of Science and Technology Taipei 10607 Taiwan
| | - Zhong‐Qun Tian
- College of Materials State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM College of Chemistry and Chemical Engineering Fujian Key Laboratory of Advanced Materials College of Energy Xiamen University Xiamen 361005 China
| | - Jian‐Feng Li
- College of Materials State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM College of Chemistry and Chemical Engineering Fujian Key Laboratory of Advanced Materials College of Energy Xiamen University Xiamen 361005 China
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16
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Wu Q, Zhang G, Ma Y, Li M, Liu F, Huang H, Liu M, Zheng Y. Ultrafast Synthesis of Wavy Gold‐Silver Alloy Nanowires with Tunable Diameters in the Range of 2‐10 nm via a Seed‐Mediated Co‐Reduction. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001137] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Quansen Wu
- Department of Chemistry and Chemical Engineering Jining University Qufu, Shandong 273115 P. R. China
| | - Gongguo Zhang
- Department of Chemistry and Chemical Engineering Jining University Qufu, Shandong 273115 P. R. China
| | - Yanyun Ma
- Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Soochow University Suzhou, Jiangsu 215123 P. R. China
| | - Mengfan Li
- College of Materials Science and Engineering Hunan University Changsha, Hunan 410082 P. R. China
| | - Feng Liu
- International Research Center for Renewable Energy National Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an, Shanxi 710049 China
| | - Hongwen Huang
- College of Materials Science and Engineering Hunan University Changsha, Hunan 410082 P. R. China
| | - Maochang Liu
- International Research Center for Renewable Energy National Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an, Shanxi 710049 China
| | - Yiqun Zheng
- Department of Chemistry and Chemical Engineering Jining University Qufu, Shandong 273115 P. R. China
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Su K, Zhang H, Qian S, Li J, Zhu J, Tang Y, Qiu X. Atomic Crystal Facet Engineering of Core-Shell Nanotetrahedrons Restricted under Sub-10 Nanometer Region. ACS Nano 2021; 15:5178-5188. [PMID: 33588529 DOI: 10.1021/acsnano.0c10376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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
Simultaneously engineering the size and surface crystal facets of bimetallic core-shell nanocrystals offers an effective route to not only reduce the extravagance of innermost core metal and maximize the utilization efficiency of shell atoms but also strengthen the core-to-shell interaction via ligand and/or strain effects. Herein, we systematically study the architecture transition and crystal facet engineering at the atomic level on the surface of sub-5 nm Pd(111) tetrahedrons (Ths), aimed at embodying how the variations in the local facet and shape of a sub-10 nm core-shell structure affect its surface geometrical properties and electronic structures. Specifically, surface atomic replication is predominant when the shell metal deposits less than five atomic layers, thus forming a series of Pd@M (M = Pt, Ru, and Rh) core-shell Ths enclosed by (111) facets (∼6.8 nm), while over five atomic layers, spontaneous facets tropism of each metal is predominant, where Pt atoms still follow fcc-(111) packing, Ru atoms select hcp-phase stacking, and Rh atoms choose fcc-(100) crystallization, respectively. In particular, Pt atoms take a seamless geometrical transformation from Pd@Pt Ths into Pd@Pt truncated octahedrons (TOhs, ∼7.6 nm). As a proof-of-concept application, such sub-10 nm core-shell architectures with Pt skin show a component-dependent relationship toward oxygen reduction reaction (ORR), where the catalytic activity follows the order of Pd@Pt(111) TOhs (E1/2 = 0.916 V, 1.632 A mgPt-1) > Pd@Pt(111) Ths > Pt black. Meanwhile the Ru skin show a facet-dependent relationship toward acidic hydrogen evolution reaction (HER) where the catalytic activity follows the order of Pd@Ru(111) Ths > Pd@Ru(hcp) Ths > Pd Ths.
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Affiliation(s)
- Keying Su
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Huaifang Zhang
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Shiyun Qian
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jiatian Li
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jiawei Zhu
- Department of Chemical Engineering, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Yawen Tang
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xiaoyu Qiu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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Zhang S, Liu K, Liu Z, Liu M, Zhang Z, Qiao Z, Ming L, Gao C. Highly Strained Au-Ag-Pd Alloy Nanowires for Boosted Electrooxidation of Biomass-Derived Alcohols. Nano Lett 2021; 21:1074-1082. [PMID: 33448860 DOI: 10.1021/acs.nanolett.0c04395] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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
Although strain engineering is effective in boosting the activities of noble metal catalysts, it remains desirable to construct fully strained catalysts to push the activity to even higher levels. Herein, we report a novel route to strong lattice strains of a Pd-based catalyst by radial growth of a Pd-rich phase on Au-Ag alloy nanowires that are no thicker than 1.5 nm. It creates not only tensile strains in the Pd-rich sheath due to the core-sheath lattice mismatch but also distortion and twinning of the lattice, producing nonhomogeneous local strains as hotspots for the catalysis. Toward the electrochemical oxidation of biomass-derived alcohols including ethanol, ethylene glycol, and glycerol, the highly strained nanowires outperformed their less strained counterparts and reached up to 13.6, 18.2, and 11.1 A mgPd-1, respectively. This strain engineering strategy may open new avenues to highly efficient catalysts for direct alcohol fuel cells and many other applications.
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Affiliation(s)
- Shumeng Zhang
- Center for Materials Chemistry, Frontier Institute of Science and Technology, and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Kai Liu
- Center for Materials Chemistry, Frontier Institute of Science and Technology, and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Zhaojun Liu
- Center for Materials Chemistry, Frontier Institute of Science and Technology, and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Moxuan Liu
- Center for Materials Chemistry, Frontier Institute of Science and Technology, and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Zhixue Zhang
- Center for Materials Chemistry, Frontier Institute of Science and Technology, and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Zhun Qiao
- Center for Materials Chemistry, Frontier Institute of Science and Technology, and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Liang Ming
- Fengcheng Advanced Energy Materials Research Institute, Ningbo, Zhejiang 315500, China
| | - Chuanbo Gao
- Center for Materials Chemistry, Frontier Institute of Science and Technology, and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
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19
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Abstract
Isolated atoms featuring unique reactivity are at the heart of enzymatic and homogeneous catalysts. In contrast, although the concept has long existed, single-atom heterogeneous catalysts (SACs) have only recently gained prominence. Host materials have similar functions to ligands in homogeneous catalysts, determining the stability, local environment, and electronic properties of isolated atoms and thus providing a platform for tailoring heterogeneous catalysts for targeted applications. Within just a decade, we have witnessed many examples of SACs both disrupting diverse fields of heterogeneous catalysis with their distinctive reactivity and substantially enriching our understanding of molecular processes on surfaces. To date, the term SAC mostly refers to late transition metal-based systems, but numerous examples exist in which isolated atoms of other elements play key catalytic roles. This review provides a compositional encyclopedia of SACs, celebrating the 10th anniversary of the introduction of this term. By defining single-atom catalysis in the broadest sense, we explore the full elemental diversity, joining different areas across the whole periodic table, and discussing historical milestones and recent developments. In particular, we examine the coordination structures and associated properties accessed through distinct single-atom-host combinations and relate them to their main applications in thermo-, electro-, and photocatalysis, revealing trends in element-specific evolution, host design, and uses. Finally, we highlight frontiers in the field, including multimetallic SACs, atom proximity control, and possible applications for multistep and cascade reactions, identifying challenges, and propose directions for future development in this flourishing field.
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Affiliation(s)
- Selina K Kaiser
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Zupeng Chen
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Dario Faust Akl
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Sharon Mitchell
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
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20
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Shan W, Liu R, Zhao H, He Z, Lai Y, Li S, He G, Liu J. In Situ Surface-Enhanced Raman Spectroscopic Evidence on the Origin of Selectivity in CO 2 Electrocatalytic Reduction. ACS Nano 2020; 14:11363-11372. [PMID: 32790343 DOI: 10.1021/acsnano.0c03534] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The electrocatalytic reduction of CO2 (CO2ER) to liquid fuels is important for solving fossil fuel depletion. However, insufficient insight into the reaction mechanisms renders a lack of effective regulation of liquid product selectivity. Here, in situ surface-enhanced Raman spectroscopy (SERS) empowered by 13C/12C isotope exchange is applied to probing the CO2ER process on nanoporous silver (np-Ag). Direct spectroscopic evidence of the preliminary intermediates, *COOH and *OCO-, indicates that CO2 is coordinated to the catalyst via diverse adsorption modes. Further, the relative Raman intensities of the above intermediates vary notably on np-Ag modified by Cu or Pd, and the liquid product selectivity also changes accordingly. Combined with density functional theory calculations, this study demonstrates that the CO2 adsorption configuration is a critical factor governing the reaction selectivity. Meanwhile, *COOH and *OCO- are key targets in the initial stage regulating liquid product selectivity, which could facilitate future selective catalyst design.
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Affiliation(s)
- Wanyu Shan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rui Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Huachao Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Zuoliang He
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yujian Lai
- School of Environment, Hangzhou Institute of Advanced Study, UCAS, Hangzhou 310024, China
| | - Shasha Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Guangzhi He
- Laboratory of Atmospheric Environment and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jingfu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- School of Environment, Hangzhou Institute of Advanced Study, UCAS, Hangzhou 310024, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
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Affiliation(s)
- Ruixuan Qin
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and National & Local Joint Engineering Research Center for Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Kunlong Liu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and National & Local Joint Engineering Research Center for Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qingyuan Wu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and National & Local Joint Engineering Research Center for Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Nanfeng Zheng
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and National & Local Joint Engineering Research Center for Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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Abstract
Manipulating metal atoms in a controllable way for the synthesis of materials with the desired structure and properties is the holy grail of chemical synthesis. The recent emergence of single atomic site catalysts (SASC) demonstrates that we are moving toward this goal. Owing to the maximum efficiency of atom-utilization and unique structures and properties, SASC have attracted extensive research attention and interest. The prerequisite for the scientific research and practical applications of SASC is to fabricate highly reactive and stable metal single atoms on appropriate supports. In this review, various synthetic strategies for the synthesis of SASC are summarized with concrete examples highlighting the key issues of the synthesis methods to stabilize single metal atoms on supports and to suppress their migration and agglomeration. Next, we discuss how synthesis conditions affect the structure and catalytic properties of SASC before ending this review by highlighting the prospects and challenges for the synthesis as well as further scientific researches and practical applications of SASC.
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Affiliation(s)
- Shufang Ji
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yuanjun Chen
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xiaolu Wang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Zedong Zhang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing 100084, China
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Chen X, Liang MM, Xu J, Sun HL, Wang C, Wei J, Zhang H, Yang WM, Yang ZL, Sun JJ, Tian ZQ, Li JF. Unveiling the size effect of Pt-on-Au nanostructures on CO and methanol electrooxidation by in situ electrochemical SERS. Nanoscale 2020; 12:5341-5346. [PMID: 32091518 DOI: 10.1039/c9nr10304j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In situ monitoring of electrocatalytic processes at solid-liquid interfaces is essential for the fundamental understanding of reaction mechanisms, yet quite challenging. Herein, Pt-on-Au nanocatalysts with a Au-core Pt-satellite superstructure have been fabricated. In such Pt-on-Au nanocatalysts, the Au cores can greatly amplify the Raman signals of the species adsorbed on Pt, allowing the in situ surface-enhanced Raman spectroscopy (SERS) study of the electrocatalytic reactions on Pt. Using the combination of an electrochemical method and in situ SERS, size effects of Pt on the catalytic performance of the core-satellite nanocomposites towards CO and methanol electrooxidation are revealed. It is found that such Pt-on-Au nanocomposites show improved activity and long-term stability for the electrooxidation of CO and methanol with a decrease in the Pt size. This work demonstrates an effective strategy to achieve the in situ monitoring of electrocatalytic processes and to simultaneously boost their catalytic performance towards electrooxidation.
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Affiliation(s)
- Xing Chen
- Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China.
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24
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Dong Y, Chen Q, Cheng X, Li H, Chen J, Zhang X, Kuang Q, Xie Z. Optimization of gold-palladium core-shell nanowires towards H 2O 2 reduction by adjusting shell thickness. Nanoscale Adv 2020; 2:785-791. [PMID: 36133255 PMCID: PMC9417247 DOI: 10.1039/c9na00726a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 12/30/2019] [Indexed: 05/12/2023]
Abstract
Designable bimetallic core-shell nanoparticles exhibit superb performance in many fields including industrial catalysis, energy conversion and chemical sensing, due to their outstanding properties associated with their tunable electronic structure. Herein, Au-Pd core-shell (AurichPd@AuPdrich) nanowires (NWs) were synthesized through a one-pot facile chemical reduction method in the presence of cetyltrimethyl ammonium bromide (CTAB) surfactant. The thickness of the Pd shell could be adjusted by directly controlling the Au/Pd feeding ratio while maintaining the nanowire morphology. The as-obtained Au75Pd25 core-shell NWs with a thin Pdrich shell showed significantly enhanced activities towards the reduction of hydrogen peroxide with the sensitivity reaching 338 μA cm-2 mM-1 and a linear range up to 10 mM. In sum, Pd shell thickness could be used to adjust the electronic structure, thereby optimizing the catalytic activity.
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Affiliation(s)
- Yongdi Dong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 P. R. China
| | - Qiaoli Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 P. R. China
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology Hangzhou 310014 China
| | - Xiqing Cheng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 P. R. China
| | - Huiqi Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 P. R. China
| | - Jiayu Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 P. R. China
| | - Xibo Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 P. R. China
| | - Qin Kuang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 P. R. China
| | - Zhaoxiong Xie
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 P. R. China
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25
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Zhao D, Zhuang Z, Cao X, Zhang C, Peng Q, Chen C, Li Y. Atomic site electrocatalysts for water splitting, oxygen reduction and selective oxidation. Chem Soc Rev 2020; 49:2215-2264. [DOI: 10.1039/c9cs00869a] [Citation(s) in RCA: 363] [Impact Index Per Article: 90.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This review summarized the fabrication routes and characterization methods of atomic site electrocatalysts (ASCs) followed by their applications for water splitting, oxygen reduction and selective oxidation.
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Affiliation(s)
- Di Zhao
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Zewen Zhuang
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Xing Cao
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Chao Zhang
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Qing Peng
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Chen Chen
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Yadong Li
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
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26
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Wang Y, Cao L, Libretto NJ, Li X, Li C, Wan Y, He C, Lee J, Gregg J, Zong H, Su D, Miller JT, Mueller T, Wang C. Ensemble Effect in Bimetallic Electrocatalysts for CO 2 Reduction. J Am Chem Soc 2019; 141:16635-16642. [PMID: 31509393 DOI: 10.1021/jacs.9b05766] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Alloying is an important strategy for the design of catalytic materials beyond pure metals. The conventional alloy catalysts however lack precise control over the local atomic structures of active sites. Here we report on an investigation of the active-site ensemble effect in bimetallic Pd-Au electrocatalysts for CO2 reduction. A series of Pd@Au electrocatalysts are synthesized by decorating Au nanoparticles with Pd of controlled doses, giving rise to bimetallic surfaces containing Pd ensembles of various sizes. Their catalytic activity for electroreduction of CO2 to CO exhibits a nonlinear behavior in dependence of the Pd content, which is attributed to the variation of Pd ensemble size and the corresponding tuning of adsorption properties. Density functional theory calculations reveal that the Pd@Au electrocatalysts with atomically dispersed Pd sites possess lower energy barriers for activation of CO2 than pure Au and are also less poisoned by strongly binding *CO intermediates than pure Pd, with an intermediate ensemble size of active sites, such as Pd dimers, giving rise to the balance between these two rate-limiting factors and achieving the highest activity for CO2 reduction.
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Affiliation(s)
| | | | - Nicole J Libretto
- Davidson School of Chemical Engineering , Purdue University , West Lafayette 47907 , Indiana , United States
| | - Xing Li
- Center for Functional Nanomaterials , Brookhaven National Laboratory , Upton 11973 , New York , United States.,Key Laboratory of Material Physics, Ministry of Education, Department of Physics and Engineering , Zhengzhou University , Zhengzhou 450052 , China
| | | | | | | | | | | | | | - Dong Su
- Center for Functional Nanomaterials , Brookhaven National Laboratory , Upton 11973 , New York , United States
| | - Jeffery T Miller
- Davidson School of Chemical Engineering , Purdue University , West Lafayette 47907 , Indiana , United States
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Levin S, Fritzsche J, Nilsson S, Runemark A, Dhokale B, Ström H, Sundén H, Langhammer C, Westerlund F. A nanofluidic device for parallel single nanoparticle catalysis in solution. Nat Commun 2019; 10:4426. [PMID: 31562383 PMCID: PMC6764984 DOI: 10.1038/s41467-019-12458-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 09/11/2019] [Indexed: 11/09/2022] Open
Abstract
Studying single catalyst nanoparticles, during reaction, eliminates averaging effects that are an inherent limitation of ensemble experiments. It enables establishing structure-function correlations beyond averaged properties by including particle-specific descriptors such as defects, chemical heterogeneity and microstructure. Driven by these prospects, several single particle catalysis concepts have been implemented. However, they all have limitations such as low throughput, or that they require very low reactant concentrations and/or reaction rates. In response, we present a nanofluidic device for highly parallelized single nanoparticle catalysis in solution, based on fluorescence microscopy. Our device enables parallel scrutiny of tens of single nanoparticles, each isolated inside its own nanofluidic channel, and at tunable reaction conditions, ranging from the fully mass transport limited regime to the surface reaction limited regime. In a wider perspective, our concept provides a versatile platform for highly parallelized single particle catalysis in solution and constitutes a promising application area for nanofluidics.
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Affiliation(s)
- Sune Levin
- Department of Biology and Biological Engineering, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - Joachim Fritzsche
- Department of Physics, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - Sara Nilsson
- Department of Physics, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - August Runemark
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - Bhausaheb Dhokale
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - Henrik Ström
- Department of Mechanics and Maritime Sciences, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - Henrik Sundén
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - Christoph Langhammer
- Department of Physics, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden.
| | - Fredrik Westerlund
- Department of Biology and Biological Engineering, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden.
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Abstract
Deuteration has found important applications in synthetic chemistry especially for pharmaceutical developments. However, conventional deuteration methods using transition-metal catalysts or strong bases generally involve harsh reaction conditions, expensive deuterium source, insufficient efficiency, and poor selectivity. Herein, we report an efficient visible-light-driven dehalogenative deuteration of organic halides using plasmonic Au/CdS as photocatalyst and D2O as deuterium donor. Electron transfer from Au to CdS, which has been confirmed by surface-enhanced Raman spectroscopy, plays a decisive role for the plasmon-mediated dehalogenation. The deuteration is revealed to proceed via a radical pathway in which substrates are first activated by the photoinduced electron transfer to generate aryl radicals, and the radicals are further trapped by D2O to give deuterated products. Under visible-light irradiation, excellent deuteration efficiency is achieved with high functional group tolerance and a wide range of substrates at room temperature. Compared with bare CdS, the photocatalytic activity increases ∼18 times after the loading of plasmonic Au nanoparticles. This work sheds light on the interfacial charge transfer between plasmonic metals and semiconductors as an important criterion for rational design of visible-light photocatalysts.
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Affiliation(s)
- Yueyue Dong
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry , Nankai University , Weijin Road 94 , Tianjin 300071 , China
| | - Yanling Su
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry , Nankai University , Weijin Road 94 , Tianjin 300071 , China
| | - Lili Du
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry , Nankai University , Weijin Road 94 , Tianjin 300071 , China
| | - Ruifeng Wang
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry , Nankai University , Weijin Road 94 , Tianjin 300071 , China
| | - Li Zhang
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry , Nankai University , Weijin Road 94 , Tianjin 300071 , China
| | - Dongbing Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Weijin Road 94 , Tianjin 300071 , China
| | - Wei Xie
- Key Lab of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, College of Chemistry , Nankai University , Weijin Road 94 , Tianjin 300071 , China
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29
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Hu H, Chang B, Sun X, Huo Q, Zhang B, Li Y, Shao Y, Zhang L, Wu Y, Hao X. Intrinsic Properties of Macroscopically Tuned Gallium Nitride Single-Crystalline Facets for Electrocatalytic Hydrogen Evolution. Chemistry 2019; 25:10420-10426. [PMID: 31140645 DOI: 10.1002/chem.201901395] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 03/26/2019] [Indexed: 11/06/2022]
Abstract
The anisotropy of crystalline materials results in different physical and chemical properties on different facets, which warrants an in-depth investigation. Macroscopically facet-tuned, high-purity gallium nitride (GaN) single crystals were synthesised and machined, and the electrocatalytic hydrogen evolution reaction (HER) was used as the model reaction to show the differences among the facets. DFT calculations revealed that the Ga and N sites of GaN (100) had a considerably smaller ΔGH* value than those of the metal Ga site of GaN (001) or N site of GaN (00-1), thereby indicating that GaN (100) should be more catalytically active for the HER on account of its nonpolar facet. Subsequent experiments testified that the electrocatalytic performance of GaN (100) was considerably more efficient than that of other facets for both acidic and alkaline HERs. Moreover, the GaN crystal with a preferentially (100) active facet had an excellently durable alkaline electrocatalytic HER for more than 10 days. This work provides fundamental insights into the exploration of the intrinsic properties of materials and designing advanced materials for physicochemical applications.
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Affiliation(s)
- Haixiao Hu
- State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
| | - Bin Chang
- State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
| | - Xiucai Sun
- State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
| | - Qin Huo
- State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
| | - Baoguo Zhang
- State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
| | - Yanlu Li
- State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
| | - Yongliang Shao
- State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
| | - Lei Zhang
- State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
| | - Yongzhong Wu
- State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
| | - Xiaopeng Hao
- State Key Lab of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
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30
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Hülsey MJ, Zhang J, Yan N. Harnessing the Wisdom in Colloidal Chemistry to Make Stable Single-Atom Catalysts. Adv Mater 2018; 30:e1802304. [PMID: 30051915 DOI: 10.1002/adma.201802304] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/14/2018] [Indexed: 05/06/2023]
Abstract
Research on single-atom catalysts (SACs), or atomically dispersed catalysts, has been quickly gaining momentum over the past few years. Although the unique electronic structure of singly dispersed atoms enables uncommon-sometimes exceptional-activities and selectivities for various catalytic applications, developing reliable and general procedures for preparing stable, active SACs in particular for applications under reductive conditions remains a major issue. Herein, the challenges associated with the synthesis of SACs are highlighted semiquantitatively and three stabilization techniques inspired by colloidal science including steric, ligand, and electrostatic stabilization are proposed. Some recent examples are discussed in detail to showcase the power of these strategies in the synthesis of stable SACs without compromising catalytic activity. The substantial further potential of steric, ligand, and electrostatic effects for developing SACs is emphasized. A perspective is given to point out opportunities and remaining obstacles, with special attention given to electrostatic stabilization where little is done so far. The stabilization strategies presented herein have a wide applicability in the synthesis of a series of new SACs with improved performances.
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Affiliation(s)
- Max J Hülsey
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Jiaguang Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Ning Yan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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31
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Liu R, Zhao H, Zhao X, He Z, Lai Y, Shan W, Bekana D, Li G, Liu J. Defect Sites in Ultrathin Pd Nanowires Facilitate the Highly Efficient Electrochemical Hydrodechlorination of Pollutants by H* ads. Environ Sci Technol 2018; 52:9992-10002. [PMID: 30067342 DOI: 10.1021/acs.est.8b02740] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Adsorbed atomic H (H*ads) facilitates indirect pathways playing a major role in the electrochemical removal of various priority pollutants. It is crucial to identify the atomic sites responsible for the provision of H*ads. Herein, through a systematic study of the distribution of H*ads on Pd nanocatalysts with different sizes and, more importantly, deliberately controlled relative abundance of surface defects, we uncovered the central role of defects in the provision of H*ads. Specifically, the H*ads generated on Pd in an electrochemical process increased markedly upon introducing defect sites by changing the morphology to ultrathin polycrystalline Pd nanowires (NWs), while dramatically reducing upon decreasing the number of surface defects through an annealing treatment. Benefiting from a proportion of H*ads up to 40% of the total H* species, the Pd NWs showed an electrochemical active surface area normalized rate constant of 13.8 ± 0.8 h-1 m-2, which is 8-9 times higher than its Pd/C counterparts. The pivotal role of defect sites for the generation of H*ads was further verified by blocking such sites with Rh and Pt atoms, while theoretical calculation also confirms that the adsorption energy of H*ads on these sites is much higher than that on the Pd{111} facet.
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Affiliation(s)
- Rui Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , China
| | - Huachao Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , China
- College of Chemical Engineering and Materials Science , Tianjin University of Science and Technology , Tianjin 300457 , China
| | - Xiaoyu Zhao
- College of Chemical Engineering and Materials Science , Tianjin University of Science and Technology , Tianjin 300457 , China
| | - Zuoliang He
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , China
- University of Chinese Academy of Sciences, Beijing 100049 , China
| | - Yujian Lai
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , China
- University of Chinese Academy of Sciences, Beijing 100049 , China
| | - Wanyu Shan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , China
- University of Chinese Academy of Sciences, Beijing 100049 , China
| | - Deribachew Bekana
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , China
- University of Chinese Academy of Sciences, Beijing 100049 , China
| | - Gang Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , China
| | - Jingfu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , China
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32
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Liu R, Chen HM, Fang LP, Xu C, He Z, Lai Y, Zhao H, Bekana D, Liu JF. Au@Pd Bimetallic Nanocatalyst for Carbon-Halogen Bond Cleavage: An Old Story with New Insight into How the Activity of Pd is Influenced by Au. Environ Sci Technol 2018; 52:4244-4255. [PMID: 29547286 DOI: 10.1021/acs.est.7b05996] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
AuPd bimetallic nanocatalysts exhibit superior catalytic performance in the cleavage of carbon-halogen bonds (C-X) in the hazardous halogenated pollutants. A better understanding of how Au atoms promote the reactivity of Pd sites rather than vaguely interpreting as bimetallic effect and determining which type of Pd sites are necessary for these reactions are crucial factors for the design of atomically precise nanocatalysts that make full use of both the Pd and Au atoms. Herein, we systematically manipulated the coordination number of Pd-Pd, d-orbital occupation state, and the Au-Pd interface of the Pd reactive centers and studied the structure-activity relationship of Au-Pd in the catalyzed cleavage of C-X bonds. It is revealed that Au enhanced the activity of Pd atoms primarily by increasing the occupation state of Pd d-orbitals. Meanwhile, among the Pd sites formed on the Au surface, five to seven contiguous Pd atoms, three or four adjacent Pd atoms, and isolated Pd atoms were found to be the most active in the cleavage of C-Cl, C-Br, and C-I bonds, respectively. Besides, neighboring Au atoms directly contribute to the weakening of the C-Br/C-I bond. This work provides new insight into the rational design of bimetallic metal catalysts with specific catalytic properties.
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Affiliation(s)
- Rui Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
| | - Hui-Min Chen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
- Department of Chemistry, Faculty of Material Sciences and Chemistry , China University of Geosciences , Wuhan 430074 , China
| | - Li-Ping Fang
- Department of Chemistry, Faculty of Material Sciences and Chemistry , China University of Geosciences , Wuhan 430074 , China
| | - Cuihong Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
- Department of Chemistry, Faculty of Material Sciences and Chemistry , China University of Geosciences , Wuhan 430074 , China
| | - Zuoliang He
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
| | - Yujian Lai
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
| | - Huachao Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
| | - Deribachew Bekana
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
| | - Jing-Fu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085 , China
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Zhang YL, Shen WJ, Kuang WT, Guo S, Li YJ, Wang ZH. Serrated Au/Pd Core/Shell Nanowires with Jagged Edges for Boosting Liquid Fuel Electrooxidation. ChemSusChem 2017; 10:2375-2379. [PMID: 28466537 DOI: 10.1002/cssc.201700602] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 04/10/2017] [Revised: 04/29/2017] [Indexed: 05/26/2023]
Abstract
Integration of 1D, core/shell, and jagged features into one entity may provide a promising avenue for further enhancing catalyst performance. However, designing such unique nanostructures is extremely challenging. Herein, 1D serrated Au/Pd core/shell nanowires (CSNWs) with jagged edges were produced simply by a one-pot, dual-capping-agent-assisted method involving co-reduction, galvanic replacement, directional coalescence of preformed nanoparticles, and site-selective epitaxial growth of Pd. Au/PdCSNWs, compared with the commercially available Pd/C, exhibited enhanced electrocatalytic performance towards liquid fuel oxidation because of the synergistic effect of the electronic structure and low-coordinated jagged edges.
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Affiliation(s)
- Yu-Ling Zhang
- State Key Lab of Chemo/Biosensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Wen-Jin Shen
- State Key Lab of Chemo/Biosensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Wen-Tao Kuang
- State Key Lab of Chemo/Biosensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Shaojun Guo
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, P. R. China
| | - Yong-Jun Li
- State Key Lab of Chemo/Biosensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Ze-Hong Wang
- State Key Lab of Chemo/Biosensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
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34
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Chen B, Fan W, Mao B, Shen H, Shi W. Enhanced photoelectrochemical water oxidation performance of a hematite photoanode by decorating with Au–Pt core–shell nanoparticles. Dalton Trans 2017; 46:16050-16057. [DOI: 10.1039/c7dt03838k] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The charge transfer process of the AuPt/α-Fe2O3 composite photoanode for photoelectrochemical water oxidation.
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Affiliation(s)
- Biyi Chen
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Weiqiang Fan
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Baodong Mao
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Hao Shen
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Weidong Shi
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
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