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Electrochemically co-deposited silicate sol–gel/PdAu alloy nanostructures and their application in electrocatalytic methanol oxidation. J CHEM SCI 2022. [DOI: 10.1007/s12039-022-02044-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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2
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Lamy C. Electrocatalytic oxidation of low weight oxygenated organic compounds: A review on their use as a chemical source to produce either electricity in a Direct Oxidation Fuel Cell or clean hydrogen in an electrolysis cell. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114426] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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3
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Asset T, Chattot R, Fontana M, Mercier-Guyon B, Job N, Dubau L, Maillard F. A Review on Recent Developments and Prospects for the Oxygen Reduction Reaction on Hollow Pt-alloy Nanoparticles. Chemphyschem 2018; 19:1552-1567. [PMID: 29578267 DOI: 10.1002/cphc.201800153] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Indexed: 11/06/2022]
Abstract
Due to their interesting electrocatalytic properties for the oxygen reduction reaction (ORR), hollow Pt-alloy nanoparticles (NPs) supported on high-surface-area carbon attract growing interest. However, the suitable synthesis methods and associated mechanisms of formation, the reasons for their enhanced specific activity for the ORR, and the nature of adequate alloying elements and carbon supports for this type of nanocatalysts remain open questions. This Review aims at shedding light on these topics with a special emphasis on hollow PtNi NPs supported onto Vulcan C (PtNi/C). We first show how hollow Pt-alloy/C NPs can be synthesized by a mechanism involving galvanic replacement and the nanoscale Kirkendall effect. Nickel, cobalt, copper, zinc, and iron (Ni, Co, Cu, Zn, and Fe, respectively) were tested for the formation of Pt-alloy/C hollow nanostructures. Our results indicate that metals with standard potential -0.4<E<0.4 V (vs. the normal hydrogen electrode) and propensity to spontaneously form metal borides in the presence of sodium borohydride are adequate sacrificial templates. As they lead to smaller hollow Pt-alloy/C NPs, mesoporous carbon supports are also best suited for this type of synthesis. A comparison of the electrocatalytic activity towards the ORR or the electrooxidation of a COads monolayer, methanol or ethanol of hollow and solid Pt-alloy/C NPs underlines the pivotal role of the structural disorder of the metal lattice, and is supported by ab initio calculations. As evidenced by accelerated stress tests simulating proton-exchange membrane fuel cell cathode operating conditions, the beneficial effect of structural disorder is maintained on the long term, thereby bringing promises for the synthesis of highly active and robust ORR electrocatalysts.
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Affiliation(s)
- Tristan Asset
- Univ. Grenoble Alpes, CNRS, Grenoble-INP (Institute of Engineering Univ. Grenoble Alpes), Université Savoie-Mont-Blanc, LEPMI, 38000, Grenoble, France.,University of Liège, Department of Chemical Engineering - Nanomaterials, Catalysis, Electrochemistry, B6a, Sart-Tilman, B-4000, Liège, Belgium
| | - Raphaël Chattot
- Univ. Grenoble Alpes, CNRS, Grenoble-INP (Institute of Engineering Univ. Grenoble Alpes), Université Savoie-Mont-Blanc, LEPMI, 38000, Grenoble, France
| | - Marie Fontana
- Univ. Grenoble Alpes, CNRS, Grenoble-INP (Institute of Engineering Univ. Grenoble Alpes), Université Savoie-Mont-Blanc, LEPMI, 38000, Grenoble, France
| | - Benjamin Mercier-Guyon
- Univ. Grenoble Alpes, CNRS, Grenoble-INP (Institute of Engineering Univ. Grenoble Alpes), Université Savoie-Mont-Blanc, LEPMI, 38000, Grenoble, France
| | - Nathalie Job
- University of Liège, Department of Chemical Engineering - Nanomaterials, Catalysis, Electrochemistry, B6a, Sart-Tilman, B-4000, Liège, Belgium
| | - Laetitia Dubau
- Univ. Grenoble Alpes, CNRS, Grenoble-INP (Institute of Engineering Univ. Grenoble Alpes), Université Savoie-Mont-Blanc, LEPMI, 38000, Grenoble, France
| | - Frédéric Maillard
- Univ. Grenoble Alpes, CNRS, Grenoble-INP (Institute of Engineering Univ. Grenoble Alpes), Université Savoie-Mont-Blanc, LEPMI, 38000, Grenoble, France
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Sakong S, Groß A. The Importance of the Electrochemical Environment in the Electro-Oxidation of Methanol on Pt(111). ACS Catal 2016. [DOI: 10.1021/acscatal.6b00931] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sung Sakong
- Institute
of Theoretical Chemistry, Ulm University, 89069 Ulm, Germany
| | - Axel Groß
- Institute
of Theoretical Chemistry, Ulm University, 89069 Ulm, Germany
- Electrochemical
Energy Storage, Helmholtz Institute Ulm (HIU), 89069 Ulm, Germany
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Carbon-supported Pt-RuS2 nanocomposite as hydrogen oxidation reaction catalysts for fuel cells. J APPL ELECTROCHEM 2015. [DOI: 10.1007/s10800-015-0899-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Lamy C, Guenot B, Cretin M, Pourcelly G. Kinetics Analysis of the Electrocatalytic Oxidation of Methanol inside a DMFC working as a PEM Electrolysis Cell (PEMEC) to generate Clean Hydrogen. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.02.069] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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7
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Dong QZ, Li LL, Chen QS, Guo CC, Yu G. Electrocatalytic oxidation of small organic molecules on Pt-Au nanoparticles supported by POMAN-MWCNTs. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2015. [DOI: 10.1134/s0036024415080270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Synergistic enhancement of the electro-oxidation of methanol at tailor-designed nanoparticle-based CoOx/MnOx/Pt ternary catalysts. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.02.231] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Wang Y, He Q, Guo J, Wei H, Ding K, Lin H, Bhana S, Huang X, Luo Z, Shen TD, Wei S, Guo Z. Carboxyl Multiwalled Carbon-Nanotube-Stabilized Palladium Nanocatalysts toward Improved Methanol Oxidation Reaction. ChemElectroChem 2015. [DOI: 10.1002/celc.201402378] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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10
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Zhang R, Peng Y, Li Z, Li K, Ma J, Liao Y, Zheng L, Zuo X, Xia D. Oxygen Electroreduction on Heat-treated Multi-walled Carbon Nanotubes Supported Iron Polyphthalocyanine in Acid Media. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.09.064] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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11
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Papaioannou EI, Siokou A, Comninellis C, Katsaounis A. Pt–Ir Binary Electrodes for Direct Oxidation of Methanol in Low-Temperature Fuel Cells (DMFCs). Electrocatalysis (N Y) 2013. [DOI: 10.1007/s12678-013-0171-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Electrocatalytic performance of poly(o-phenylenediamine)-Pt–Ru nanocomposite for methanol oxidation. J Solid State Electrochem 2013. [DOI: 10.1007/s10008-013-2155-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Investigation of PdSn nanometals alloy supported on spherical TiO2 for methanol electro-oxidation. POWDER TECHNOL 2013. [DOI: 10.1016/j.powtec.2013.03.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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15
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Simões M, Baranton S, Coutanceau C. Electrochemical valorisation of glycerol. CHEMSUSCHEM 2012; 5:2106-2124. [PMID: 23112136 DOI: 10.1002/cssc.201200335] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 06/15/2012] [Indexed: 06/01/2023]
Abstract
The worldwide glycerol stocks are increasing; to make the biodiesel industry sustainable economically, this chemical could be used as a secondary primary raw material. Electric energy or hydrogen and added-value-chemical cogeneration becomes more and more an important research topic for increasing economical and industrial interests towards electrochemical technologies. Studies on glycerol electrooxidation for fuel or electrolysis cell applications are scarce. The valorisation of glycerol is generally performed by organic chemistry reactions forming, for example, esters, glycerol carbonates, ethers, acetals or ketals. Glycerol oxidation is made up of complex pathway reactions that can produce a large number of useful intermediates or valuable fine chemicals with presently limited market impact due to expensive production processes. Many of these chemical oxidation routes lead to significant amounts of undesired by-products, and enzymatic processes are limited. Converse to classical heterogeneous processes, electrocatalytic oxidation processes can be tuned by controlling the nature, composition and structure of the electrocatalyts as well as the electrode potential. Such control may lead to very high selectivity and activity, avoiding or limiting product separation steps. The coupling of glycerol oxidation to produce chemicals with the oxygen reduction reaction in a fuel cell or water reduction reaction in an electrolysis cell on Pt-free catalysts results either in coproduction of electrical energy or hydrogen for energy storage.
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Affiliation(s)
- Mário Simões
- IC2 MP, UMR 7285 CNRS, Université de Poitiers, 4 Rue Michel Brunet, B 27, 86022 Poitiers Cedex, France
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16
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Ruzicka JY, Anderson DP, Gaw S, Golovko VB. Platinum-Ruthenium Nanoparticles: Active and Selective Catalysts for Hydrogenation of Phenylacetylene. Aust J Chem 2012. [DOI: 10.1071/ch12219] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Bimetallic metal nanoparticles are often more catalytically active than their monometallic counterparts, due to a so-called ‘synergistic effect’. Atomically precise ruthenium-platinum clusters have been shown to be active in the hydrogenation of phenylacetylene to styrene (a reaction of importance to the polymer industry). However, the synthesis of these clusters is generally complex, and cannot be modified to produce clusters with differing metal compositions or ratios. Hence, any truly systematic study of compositional effects using such clusters is hindered by the inaccessibility of certain metal ratios. In this study, a series of larger bimetallic ruthenium-platinum colloids of varying metal ratios was synthesised in solution and immobilised on silica. Catalytic activity was evaluated by hydrogenation of phenylacetylene to styrene. Both bimetallic and monometallic colloids were active catalysts for the hydrogenation of phenylacetylene to styrene and further to ethylbenzene. Of those studied, a catalyst composed of 73 % platinum-27 % ruthenium (by moles) showed the highest activity. This suggests that synergistic effects play an important role in the catalysis of this reaction. To our knowledge this is the first systematic study of ruthenium-platinum nanoparticle catalytic activity on this reaction.
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17
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Do not forget the electrochemical characteristics of the membrane electrode assembly when designing a Proton Exchange Membrane Fuel Cell stack. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.05.098] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Park KC, Jang IY, Wongwiriyapan W, Morimoto S, Kim YJ, Jung YC, Toya T, Endo M. Carbon-supported Pt–Ru nanoparticles prepared in glyoxylate-reduction system promoting precursor–support interaction. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b923153f] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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CO oxidation on non-alloyed Pt and Ru electrocatalysts prepared by the polygonal barrel-sputtering method. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2009.04.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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20
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Wang H, Alden LR, DiSalvo FJ, Abruña HD. Methanol electrooxidation on PtRu bulk alloys and carbon-supported PtRu nanoparticle catalysts: a quantitative DEMS study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:7725-7735. [PMID: 19505091 DOI: 10.1021/la900305k] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Methanol electrooxidation on smooth Pt and PtRu bulk alloys and carbon-supported Pt and PtRu nanoparticle catalysts has been studied using cyclic voltammetry and potential step chronoamperometry combined with differential electrochemical mass spectrometry (DEMS). The current efficiencies for generated CO2 and methyl formate were calculated from Faradaic current (coulometric charge) and mass spectrometric currents (charges) at m/z=44 and m/z=60. The effects of Ru content in PtRu catalysts, catalyst loading/roughness, and the concentration of sulfuric acid as supporting electrolyte on the reaction kinetics and product distribution during methanol electrooxidation have been investigated. The results indicate that Pt-rich PtRu alloys and carbon-supported PtRu catalysts with ca. 20 atom % Ru content exhibit the highest catalytic activity for methanol electrooxidation, that is, the highest Faradaic current and the highest current efficiency for CO2 generation at low applied potentials. As the catalyst loading/roughness increases, the current efficiency for CO2 formation increases due to the further oxidation of soluble intermediates (formaldehyde and formic acid). At high concentrations of sulfuric acid, the electrooxidation of methanol was suppressed; both the oxidative current and the current efficiency of CO2 decreased, likely due to sulfate/bisulfate adsorption.
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Affiliation(s)
- Hongsen Wang
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, USA
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21
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Nanostructured Supported Catalysts for Low-Temperature Fuel Cells. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/b978-0-08-044965-4.50007-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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22
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Coutanceau C, Brimaud S, Lamy C, Léger JM, Dubau L, Rousseau S, Vigier F. Review of different methods for developing nanoelectrocatalysts for the oxidation of organic compounds. Electrochim Acta 2008. [DOI: 10.1016/j.electacta.2007.12.043] [Citation(s) in RCA: 127] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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23
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Grolleau C, Coutanceau C, Pierre F, Léger JM. Effect of potential cycling on structure and activity of Pt nanoparticles dispersed on different carbon supports. Electrochim Acta 2008. [DOI: 10.1016/j.electacta.2008.05.014] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Golikand A, Irannejad L. Electroreduction of Oxygen and Electrooxidation of Methanol at Carbon and Single Wall Carbon Nanotube Supported Platinum Electrodes. ELECTROANAL 2008. [DOI: 10.1002/elan.200704161] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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25
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26
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Siwek H, Łukaszewski M, Czerwiński A. Electrochemical study on the adsorption of carbon oxides and oxidation of their adsorption products on platinum group metals and alloys. Phys Chem Chem Phys 2008; 10:3752-65. [DOI: 10.1039/b718286b] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Chen W, Kim J, Sun S, Chen S. Composition effects of FePt alloy nanoparticles on the electro-oxidation of formic acid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2007; 23:11303-10. [PMID: 17892313 DOI: 10.1021/la7016648] [Citation(s) in RCA: 117] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The catalytic activities of FexPt100-x alloy nanoparticles at different compositions (x=10, 15, 42, 54, 58, and 63) in the electro-oxidation of formic acid have been investigated by using cyclic voltammetry (CV), chronoamperometry, and electrochemical impedance spectroscopy (EIS). It was observed that the electrocatalytic performance was strongly dependent on the FePt particle composition. In chronoamperometric measurements, the alloy particles at x approximately 50 showed the highest steady-state current density among the catalysts under study and maintained the best long-term stability. In addition, on the basis of the anodic peak current density, onset potentials, and the ratios of the anodic peak current density to the cathodic peak current density in CV studies, the catalytic activity for HCOOH oxidation was found to decrease in the order of Fe42Pt58>Fe54Pt46 approximately Fe58Pt42>Fe15Pt85>Fe10Pt90>Fe63Pt37. That is, within the present experimental context, the alloy nanoparticles at x approximately 50 appeared to exhibit the maximum electrocatalytic activity and stability with optimal tolerance to CO poisoning. Consistent responses were also observed in electrochemical impedance spectroscopic measurements. For the alloy nanoparticles that showed excellent tolerance to CO poisoning, the impedance in the Nyquist plots was found to change sign from positive to negative with increasing electrode potential, suggesting that the electron-transfer kinetics evolved from resistive to pseudoinductive and then to inductive characters. However, for the nanoparticles that were heavily poisoned by adsorbed CO species during formic acid oxidation, the impedance was found to be confined to the first quadrant at all electrode potentials. The present work highlights the influence of the molecular composition of Pt-based alloy electrocatalysts on the performance of formic acid electro-oxidation, an important aspect in the design of bimetal electrocatalysts in fuel cell applications.
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Affiliation(s)
- Wei Chen
- Department of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, California 95064, USA
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28
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Łukaszewski M, Czerwiński A. Comparative EQCM study on electrooxidation of carbon oxides adsorption products on noble metals and their alloys. Polycrystalline Pd-based systems. J Electroanal Chem (Lausanne) 2007. [DOI: 10.1016/j.jelechem.2007.06.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Park N, Shiraishi T, Kamisugi K, Hayase S. Effect of Nanoparticle Addition into Anode Electrodes for Direct Ethanol Fuel Cells. CHEM LETT 2007. [DOI: 10.1246/cl.2007.922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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30
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Holstein WL, Rosenfeld HD. In-situ X-ray absorption spectroscopy study of Pt and Ru chemistry during methanol electrooxidation. J Phys Chem B 2007; 109:2176-86. [PMID: 16851209 DOI: 10.1021/jp048955h] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Methanol electrooxidation in a 0.5 M sulfuric acid electrolyte containing 1.0 M CH3OH was studied on 30% Pt/carbon and 30% PtRu/carbon (Pt/Ru = 1:1) catalysts using X-ray absorption spectroscopy (XAS). Absorption by Pt and Ru was measured at constant photon energy in the near edge region during linear potential sweeps of 10-50 mV/s between 0.01 and 1.36 V vs rhe. The absorption results were used to follow Pt and Ru oxidation and reduction under transient conditions as well as to monitor Ru dissolution. Both catalysts exhibited higher activity for methanol oxidation at high potential following multiple potential cycles. Correlation of XAS data with the potential sweeps indicates that Pt catalysts lose activity at high potentials due to Pt oxidation. The addition of Ru to Pt accelerates the rate of methanol oxidation at all potentials. Ru is more readily oxidized than Pt, but unlike Pt, its oxidation does not result in a decrease in catalytic activity. PtRu/carbon catalysts underwent significant changes during potential cycling due to Ru loss. Similar current density vs potential results were obtained using the same PtRu/carbon catalyst at the same loading in a membrane electrode assembly half cell with only a Nafion (DuPont) solid electrolyte. The results are interpreted in terms of a bifunctional catalyst mechanism in which Pt surface sites serve to chemisorb and dissociate methanol to protons and carbon monoxide, while Ru surface sites activate water and accelerate the oxidation of the chemisorbed CO intermediate. PtRu/carbon catalysts maintain their activity at very high potentials, which is attributed to the ability of the added Ru to keep Pt present in a reduced state, a necessary requirement for methanol chemisorption and dissociation.
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Affiliation(s)
- William L Holstein
- Central Research & Development, E. I. duPont de Nemours, Inc., Wilmington, Delaware 19880-0262, USA.
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31
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Tian J, Sun G, Jiang L, Yan S, Mao Q, Xin Q. Highly stable PtRuTiOx/C anode electrocatalyst for direct methanol fuel cells. Electrochem commun 2007. [DOI: 10.1016/j.elecom.2006.10.034] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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32
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Demarconnay L, Brimaud S, Coutanceau C, Léger JM. Ethylene glycol electrooxidation in alkaline medium at multi-metallic Pt based catalysts. J Electroanal Chem (Lausanne) 2007. [DOI: 10.1016/j.jelechem.2006.11.006] [Citation(s) in RCA: 124] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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33
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34
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PtRu colloidal catalysts: Characterisation and determination of kinetics for methanol oxidation. Electrochim Acta 2007. [DOI: 10.1016/j.electacta.2006.03.110] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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35
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Gavrilov AN, Savinova ER, Simonov PA, Zaikovskii VI, Cherepanova SV, Tsirlina GA, Parmon VN. On the influence of the metal loading on the structure of carbon-supported PtRu catalysts and their electrocatalytic activities in CO and methanol electrooxidation. Phys Chem Chem Phys 2007; 9:5476-89. [DOI: 10.1039/b707598g] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Maillard F, Peyrelade E, Soldo-Olivier Y, Chatenet M, Chaînet E, Faure R. Is carbon-supported Pt-WOx composite a CO-tolerant material? Electrochim Acta 2007. [DOI: 10.1016/j.electacta.2006.08.024] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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37
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Islam M, Basnayake R, Korzeniewski C. A study of formaldehyde formation during methanol oxidation over PtRu bulk alloys and nanometer scale catalyst. J Electroanal Chem (Lausanne) 2007. [DOI: 10.1016/j.jelechem.2006.08.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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38
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Yang H, Zhu Y. Glucose biosensor based on nano-SiO2 and "unprotected" Pt nanoclusters. Biosens Bioelectron 2006; 22:2989-93. [PMID: 17240133 DOI: 10.1016/j.bios.2006.12.019] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2006] [Revised: 12/10/2006] [Accepted: 12/12/2006] [Indexed: 10/23/2022]
Abstract
The "unprotected" Pt nanoclusters (average size 2 nm) mixed with the nanoscale SiO(2) particles (average size 13 nm) were used as a glucose oxidase immobilization carrier to fabricate the amperometric glucose biosensor. The bioactivity of glucose oxidase (GOx) immobilized on the composite was maintained and the as-prepared biosensor demonstrated high sensitivity (3.85 microA mM(-1)) and good stability in glucose solution. The Pt-SiO(2) biosensor showed a detection limit of 1.5 microM with a linear range from 0.27 to 4.08 mM. In addition, the biosensor can be operated under wide pH range (pH 4.9-7.5) without great changes in its sensitivity. Cyclic voltammetry measurements showed a mixed controlled electrode reaction.
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Affiliation(s)
- Haipeng Yang
- Department of Chemistry, Tsinghua University, Beijing 100084, PR China
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39
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Zhao Y, Fan L, Zhong H, Li Y. Electrodeposition and electrocatalytic properties of platinum nanoparticles on multi-walled carbon nanotubes: effect of the deposition conditions. Mikrochim Acta 2006. [DOI: 10.1007/s00604-006-0701-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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40
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Basnayake R, Li Z, Katar S, Zhou W, Rivera H, Smotkin ES, Casadonte DJ, Korzeniewski C. PtRu nanoparticle electrocatalyst with bulk alloy properties prepared through a sonochemical method. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:10446-50. [PMID: 17129014 DOI: 10.1021/la061274o] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Properties of PtRu nanoparticles prepared using high-intensity sonochemistry are reported. Syntheses were carried out in tetrahydrofuran (THF) containing Ru3+ and Pt4+ in a fixed mole ratio of either 1:10 or 1:1. X-ray diffraction measurements confirmed sonocation produces an alloy phase and showed that the composition of the nanometer scale metal particles is close to the mole fraction of Ru3+ and Pt4+ in solution with deviations that tend toward Ru enrichment in the alloy phase. The materials gave responses that are similar in terms of peak potential and current density, referenced to the catalyst active surface area, to those of bulk alloys in voltammetry experiments involving CO stripping and CH3OH electrochemical oxidation in 0.1 M H2SO4. The results show that sonochemical methods have the potential to produce nanometer scale bimetallic electrocatalysts that possess alloy properties. The materials have application in mechanistic studies of fuel cell reactions and as platforms for the development of CO tolerant fuel cell catalyst.
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Affiliation(s)
- Rukma Basnayake
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
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Li X, Hsing IM. Surfactant-stabilized PtRu colloidal catalysts with good control of composition and size for methanol oxidation. Electrochim Acta 2006. [DOI: 10.1016/j.electacta.2006.07.037] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Santos L, Oliveira C, Moraes I, Ticianelli E. Oxygen reduction reaction in acid medium on Pt–Ni/C prepared by a microemulsion method. J Electroanal Chem (Lausanne) 2006. [DOI: 10.1016/j.jelechem.2006.07.033] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Synthesis of highly dispersed Pt/C electrocatalysts in ethylene glycol using acetate stabilizer for methanol electrooxidation. J APPL ELECTROCHEM 2006. [DOI: 10.1007/s10800-006-9163-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Electrodeposition of Pt–Ru nanoparticles on fibrous carbon substrates in the presence of nonionic surfactant: Application for methanol oxidation. Electrochim Acta 2006. [DOI: 10.1016/j.electacta.2006.02.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Baranton S, Coutanceau C, Garnier E, Léger JM. How does α-FePc catalysts dispersed onto high specific surface carbon support work towards oxygen reduction reaction (orr)? J Electroanal Chem (Lausanne) 2006. [DOI: 10.1016/j.jelechem.2006.03.007] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Cheng TT, Gyenge EL. Electrodeposition of mesoscopic Pt-Ru on reticulated vitreous carbon from reverse emulsions and microemulsions: Application to methanol electro-oxidation. Electrochim Acta 2006. [DOI: 10.1016/j.electacta.2005.11.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Frackowiak E, Lota G, Cacciaguerra T, Béguin F. Carbon nanotubes with Pt–Ru catalyst for methanol fuel cell. Electrochem commun 2006. [DOI: 10.1016/j.elecom.2005.10.015] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Ninivin CL, Balland-Longeau A, Demattei D, Palmas P, Saillard J, Coutanceau C, Lamy C, Léger JM. Determination of the physicochemical characteristics and electrical performance of postsulfonated and grafted sulfonated derivatives of poly(para-phenylene) as new proton-conducting membranes for direct methanol fuel cell. J Appl Polym Sci 2006. [DOI: 10.1002/app.24022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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