|
1
|
Berretti E, Pagliaro M, Giaccherini A, Montegrossi G, Di Benedetto F, Lepore G, D'Acapito F, Vizza F, Lavacchi A. Experimental evidence of palladium dissolution in anodes for alkaline direct ethanol and formate fuel cells. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
|
2
|
Phosphate stabilized PdCoP@Nifoam catalyst for self-pressurized H2 production from the electrochemical reforming of ethanol at 150 °C. J Catal 2020. [DOI: 10.1016/j.jcat.2019.12.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
|
3
|
Electrocatalytic Oxidation of Small Molecule Alcohols over Pt, Pd, and Au Catalysts: The Effect of Alcohol’s Hydrogen Bond Donation Ability and Molecular Structure Properties. Catalysts 2019. [DOI: 10.3390/catal9040387] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The direct alcohol fuel cell is a kind of power generation device that directly converts the chemical energy of small molecule alcohols into electric energy. In this paper, the electro-oxidation behaviors of some typical alcohols (methanol, ethanol, ethylene glycol, n-propanol, 2-propanol, and glycerol) over Pt, Pd, and Au electrodes were investigated in acidic, neutral, and alkaline media, respectively. By analyzing the activity information from a cyclic voltammetry (CV) method and some dynamic tests, several regularities were revealed in those electro-oxidation behaviors. Firstly, alkaline media is the best for the electro-oxidation of all these alcohols over Pt, Pd, and Au catalysts. Secondly, the hydrogen bond donation abilities (HBD) of different alcohols were found have a great relationship with the catalytic performance. In alkaline media, on Pt electrodes, the solute HBD is positively correlated with the ease of electrooxidation within the scope of this experiment. Contrarily, it is negatively correlated on Pd and Au electrodes. Additionally, for Pt catalysts in acidic and neutral media, the relationship becomes negative again as the HBD increases. Finally, the alcohol’s molecular structure properties were found to have a remarkably influence on the activity of different catalysts. Over the Pt electrode in alkaline media, the activation energy of methanol oxidation is 44.1 KJ/mol, and is obviously lower than the oxidation of other alcohols. Under similar conditions, the lowest activation energy was measured in the oxidation of n-propanol (14.4 KJ/mol) over the Pd electrode, and in the oxidation of glycerol (42.2 KJ/mol) over the Au electrode. Totally, among all these electrodes, Pt electrodes showed the best activities on the oxidation of C1 alcohol, Pd electrodes were more active on the oxidation of C2-3 monobasic alcohols, and Au electrodes were more active on the oxidation of polybasic alcohols.
Collapse
|
|
4
|
Wang H, Jiang B, Zhao TT, Jiang K, Yang YY, Zhang J, Xie Z, Cai WB. Electrocatalysis of Ethylene Glycol Oxidation on Bare and Bi-Modified Pd Concave Nanocubes in Alkaline Solution: An Interfacial Infrared Spectroscopic Investigation. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03108] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Han Wang
- Shanghai
Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative
Innovation Center of Chemistry for Energy Materials, Department of
Chemistry, Fudan University, Shanghai 200433, China
| | - Bei Jiang
- Shanghai
Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative
Innovation Center of Chemistry for Energy Materials, Department of
Chemistry, Fudan University, Shanghai 200433, China
| | - Ting-Ting Zhao
- Shanghai
Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative
Innovation Center of Chemistry for Energy Materials, Department of
Chemistry, Fudan University, Shanghai 200433, China
| | - Kun Jiang
- Shanghai
Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative
Innovation Center of Chemistry for Energy Materials, Department of
Chemistry, Fudan University, Shanghai 200433, China
| | - Yao-Yue Yang
- College
of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities, Chengdu 610041, China
| | - Jiawei Zhang
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Zhaoxiong Xie
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Wen-Bin Cai
- Shanghai
Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative
Innovation Center of Chemistry for Energy Materials, Department of
Chemistry, Fudan University, Shanghai 200433, China
| |
Collapse
|
|
5
|
Dakshinamoorthy P, Vaithilingam S. Platinum–copper doped poly(sulfonyldiphenol/cyclophosphazene/benzidine)–graphene oxide composite as an electrode material for single stack direct alcohol alkaline fuel cells. RSC Adv 2017. [DOI: 10.1039/c7ra04525e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic representation of the preparation of a metal nanoparticle (Pt and Pt–Cu)-decorated poly(SDP/CP/BZ)–GO composite.
Collapse
Affiliation(s)
- Prasanna Dakshinamoorthy
- Nanotech Research Lab
- Department of Chemistry
- University College of Engineering Villupuram, (A Constituent College of Anna University, Chennai)
- Villupuram-605 103
- India
| | - Selvaraj Vaithilingam
- Nanotech Research Lab
- Department of Chemistry
- University College of Engineering Villupuram, (A Constituent College of Anna University, Chennai)
- Villupuram-605 103
- India
| |
Collapse
|