|
1
|
Zhang G, Cao D, Guo S, Fang Y, Wang Q, Cheng S, Zuo W, Yang Z, Cui P. Tuning the Selective Ethanol Oxidation on Tensile-Trained Pt(110) Surface by Ir Single Atoms. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2202587. [PMID: 35871573 DOI: 10.1002/smll.202202587] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Development of efficient and robust electrocatalysts for complete oxidation of ethanol is critical for the commercialization of direct ethanol fuel cells. However, the complete oxidation of ethanol suffers from poor efficiency due to the low C1 pathway selectivity. Herein, single-atomic Ir (Ir1 ) on hcp-PtPb/fcc-Pt core-shell hexagonal nanoplates (PtPb@PtIr1 HNPs) enclosed by Pt(110) surface with a 7.2% tensile strain is constructed to drive complete electro-oxidation of ethanol. Benefiting from the construction of Ir1 sites, the PtPb@PtIr1 HNPs exhibit a Faraday efficiency of 57.93% for the C1 pathway, which is ≈8.3 times higher than that of the commercial Pt/C-JM. Furthermore, the PtPb@PtIr1 HNPs show a top-ranked electro-activity achieving 45.1-fold and 56.3-fold higher than the specific and mass activities of Pt/C-JM, respectively. Meanwhile, the durability can be significantly enhanced by the construction of Ir1 sites. Density functional theory calculations indicate that the strong synergy on the PtPb@PtIr1 HNPs surface significantly promotes the breaking of CC bond of CH2 CO* and facilitates CO oxidation and suppresses the deactivation of the catalyst. This work offers a unique single-atom approach using low-coordination active sites on shape-controlled nanocrystals to tune the selectivity and activity toward complicated catalytic reactions.
Collapse
Affiliation(s)
- Genlei Zhang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, P. R. China
| | - Dongjie Cao
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, P. R. China
| | - Shiyu Guo
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, P. R. China
| | - Yan Fang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, P. R. China
| | - Qi Wang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, P. R. China
| | - Sheng Cheng
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, P. R. China
| | - Wansheng Zuo
- Wuhu Tus-Semiconductor Co., Limin East Road 82, Wuhu, 241000, P. R. China
| | - Zhenzhen Yang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, P. R. China
| | - Peng Cui
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei, 230009, P. R. China
| |
Collapse
|
|
2
|
Sheng T, Wu HY, Lin X, Lin WF. Insights into reaction mechanisms of ethanol electrooxidation at the Pt/Au(111) interfaces using density functional theory. Phys Chem Chem Phys 2022; 24:27277-27288. [DOI: 10.1039/d2cp03186h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Understanding ethanol electrooxidation reaction kinetics is fundamental to the development of direct ethanol fuel cells.
Collapse
Affiliation(s)
- Tian Sheng
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, China
| | - Han-Yue Wu
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, China
| | - Xiao Lin
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, CB3 0AS, UK
| | - Wen-Feng Lin
- Department of Chemical Engineering, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK
| |
Collapse
|
|
4
|
Chen QS, Tang JX, Xu ZN, Sheng T, Guo GC. Shape-dependent catalytic properties of electrochemically synthesized PdPt nanoparticles towards alcohols electrooxidation. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
|
5
|
Wu Z, Zhang M, Jiang H, Zhong CJ, Chen Y, Wang L. Competitive C-C and C-H bond scission in the ethanol oxidation reaction on Cu(100) and the effect of an alkaline environment. Phys Chem Chem Phys 2017; 19:15444-15453. [PMID: 28580983 DOI: 10.1039/c7cp01445g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Direct ethanol fuel cell technology is impeded by inefficient, yet expensive anode catalysts. As such, research on effective and cheap anode catalysts towards complete ethanol oxidation reaction (EOR) is greatly needed. Herein, we report the investigations of the competitive C-C and C-H bond scissions in the EOR involving CH3CO, CH2CO, and CHCO species on Cu(100) using density functional theory and transition state theory calculations. The easiest C-C bond cleavage was found in CH2CO while the most difficult C-H bond cleavage was also found in CH2CO, both with an activation energy of 1.02 eV. The feasible C-C bond scission may take place in CH2CO with a rate constant ratio of the C-C to the C-H bond scission at 100 °C of 0.32. Furthermore, in an alkaline environment, the C-H bond scission activation barrier is considerably lowered but the C-C bond cleavage activation barrier is slightly increased for both CH3CO and CH2CO species. The reaction of CH3CO species on Cu(100) under alkaline conditions produces mainly acetic acid with a barrier of 0.49 eV and a rate constant of 4.93 × 105 s-1 at 100 °C.
Collapse
Affiliation(s)
- Zhipeng Wu
- Key Laboratory of Ministry of Education for Green Chemical Technology and the R & D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China.
| | | | | | | | | | | |
Collapse
|
|
6
|
Zhang BW, Sheng T, Wang YX, Qu XM, Zhang JM, Zhang ZC, Liao HG, Zhu FC, Dou SX, Jiang YX, Sun SG. Platinum–Cobalt Bimetallic Nanoparticles with Pt Skin for Electro-Oxidation of Ethanol. ACS Catal 2016. [DOI: 10.1021/acscatal.6b03021] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Bin-Wei Zhang
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Institute
for Superconducting and Electronic Materials, Australian Institute
of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Tian Sheng
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yun-Xiao Wang
- Institute
for Superconducting and Electronic Materials, Australian Institute
of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Xi-Ming Qu
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jun-Ming Zhang
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zong-Cheng Zhang
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Hong-Gang Liao
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Fu-Chun Zhu
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Shi-Xue Dou
- Institute
for Superconducting and Electronic Materials, Australian Institute
of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, New South Wales 2500, Australia
| | - Yan-Xia Jiang
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Shi-Gang Sun
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| |
Collapse
|