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Meng J, Shu J, Zhao J, Wu L, Jin R, Yang H, Li S. Enhancing electrocatalytic methanol oxidation of Pd-Ir nanoalloy through electron-rich catalytic interface induced by incorporating phosphorus. J Colloid Interface Sci 2023; 647:438-445. [PMID: 37269740 DOI: 10.1016/j.jcis.2023.05.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/12/2023] [Accepted: 05/28/2023] [Indexed: 06/05/2023]
Abstract
Incorporating less expensive nonmetal phosphorus (P) into noble metal-based catalysts has become a developing strategy to enhance the catalytic performance of electrocatalysts for methanol electrooxidation reaction (MOR), attributing to the electronic and synergistic structure alteration mechanism. In the work, three-dimensional nitrogen-doped graphene anchoring ternary Pd-Ir-P nanoalloy catalyst (Pd7IrPx/NG) was prepared by co-reduction strategy. As a multi-electron system, elemental P adjusts the outer electron structure of Pd and diminishes the particle size of nanocomposites, which heightens the electrocatalytic activity effectively and accelerate MOR kinetics in alkaline medium. The study reveals that the electron effect and ligand effect induced by P atoms on the hydrophilic and electron-rich surface of Pd7Ir/NG and Pd7IrPx/NG samples can reduce the initial oxidation potential and peak potential of COads, showing significantly enhanced the anti-poisoning ability compared with commercial Pd/C as the benchmark. Meanwhile, the stability of Pd7IrPx/NG is significantly higher than that of commercial Pd/C. The facile synthetic approach provides an economic option and a new vision for the development of electrocatalysts in MOR.
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Affiliation(s)
- Jianqi Meng
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Junhao Shu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Jinjuan Zhao
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Li Wu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Ruifa Jin
- Inner Mongolia Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Life Sciences, Chifeng University, Chifeng 024000, China
| | - Honglei Yang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
| | - Shuwen Li
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
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Liu Y, Ye W, Lin H, Song C, Rong Z, Lu R, Zhang H, Huang H, Tang Z, Zhang S. Embedding
Pd‐Cu
Alloy Nanoparticles in Shell of
Surface‐Porous N‐Doped
Carbon Nanosphere for Selective Hydrogenation of
p
‐Chloronitrobenzene
. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yingcen Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian Liaoning 116024 China
| | - Wanyue Ye
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian Liaoning 116024 China
| | - Hua Lin
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian Liaoning 116024 China
| | - Caicheng Song
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian Liaoning 116024 China
| | - Zeming Rong
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian Liaoning 116024 China
| | - Rongwen Lu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian Liaoning 116024 China
| | - Hao Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian Liaoning 116024 China
| | - He Huang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian Liaoning 116024 China
| | - Zhicheng Tang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian Liaoning 116024 China
| | - Shufen Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian Liaoning 116024 China
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Tuci G, Liu Y, Rossin A, Guo X, Pham C, Giambastiani G, Pham-Huu C. Porous Silicon Carbide (SiC): A Chance for Improving Catalysts or Just Another Active-Phase Carrier? Chem Rev 2021; 121:10559-10665. [PMID: 34255488 DOI: 10.1021/acs.chemrev.1c00269] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
There is an obvious gap between efforts dedicated to the control of chemicophysical and morphological properties of catalyst active phases and the attention paid to the search of new materials to be employed as functional carriers in the upgrading of heterogeneous catalysts. Economic constraints and common habits in preparing heterogeneous catalysts have narrowed the selection of active-phase carriers to a handful of materials: oxide-based ceramics (e.g. Al2O3, SiO2, TiO2, and aluminosilicates-zeolites) and carbon. However, these carriers occasionally face chemicophysical constraints that limit their application in catalysis. For instance, oxides are easily corroded by acids or bases, and carbon is not resistant to oxidation. Therefore, these carriers cannot be recycled. Moreover, the poor thermal conductivity of metal oxide carriers often translates into permanent alterations of the catalyst active sites (i.e. metal active-phase sintering) that compromise the catalyst performance and its lifetime on run. Therefore, the development of new carriers for the design and synthesis of advanced functional catalytic materials and processes is an urgent priority for the heterogeneous catalysis of the future. Silicon carbide (SiC) is a non-oxide semiconductor with unique chemicophysical properties that make it highly attractive in several branches of catalysis. Accordingly, the past decade has witnessed a large increase of reports dedicated to the design of SiC-based catalysts, also in light of a steadily growing portfolio of porous SiC materials covering a wide range of well-controlled pore structure and surface properties. This review article provides a comprehensive overview on the synthesis and use of macro/mesoporous SiC materials in catalysis, stressing their unique features for the design of efficient, cost-effective, and easy to scale-up heterogeneous catalysts, outlining their success where other and more classical oxide-based supports failed. All applications of SiC in catalysis will be reviewed from the perspective of a given chemical reaction, highlighting all improvements rising from the use of SiC in terms of activity, selectivity, and process sustainability. We feel that the experienced viewpoint of SiC-based catalyst producers and end users (these authors) and their critical presentation of a comprehensive overview on the applications of SiC in catalysis will help the readership to create its own opinion on the central role of SiC for the future of heterogeneous catalysis.
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Affiliation(s)
- Giulia Tuci
- Institute of Chemistry of OrganoMetallic Compounds, ICCOM-CNR and Consorzio INSTM, Via Madonna del Piano, 10, 50019 Sesto F.no, Florence, Italy
| | - Yuefeng Liu
- Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, 116023 Dalian, China
| | - Andrea Rossin
- Institute of Chemistry of OrganoMetallic Compounds, ICCOM-CNR and Consorzio INSTM, Via Madonna del Piano, 10, 50019 Sesto F.no, Florence, Italy
| | - Xiangyun Guo
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Charlotte Pham
- SICAT SARL, 20 place des Halles, 67000 Strasbourg, France
| | - Giuliano Giambastiani
- Institute of Chemistry of OrganoMetallic Compounds, ICCOM-CNR and Consorzio INSTM, Via Madonna del Piano, 10, 50019 Sesto F.no, Florence, Italy.,Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), ECPM, UMR 7515 of the CNRS-University of Strasbourg, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Cuong Pham-Huu
- Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), ECPM, UMR 7515 of the CNRS-University of Strasbourg, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
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Koysuren N. Enhanced Photocatalytic Activity of Boron Doped Silicon Carbide Nanofibers and Its Composite with Polyvinyl Borate. POLYM-PLAST TECH MAT 2021. [DOI: 10.1080/25740881.2021.1924199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Nagehan Koysuren
- Department of Environmental Engineering, Kirsehir Ahi Evran University, Kirsehir, Turkey
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