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Rigi F, Yavari Z. Biosynthesize of Zinc Oxide Nanoparticles and Their Promoter Actions in the Application of Pd/ZnO Catalyst for Electro-Oxidation of Ethanol. Catal Letters 2023. [DOI: 10.1007/s10562-022-04159-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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2
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Askarisarvestani G, Hoseini SJ, Bahrami M, Nabavizadeh SM, De Giglio E, Chen W. Pt@Metal-Organic Framework (ZIF-8) Thin Films Obtained at a Liquid/Liquid Interface as Anode Electrocatalysts for Methanol Fuel Cells: Different Approaches in the Synthesis. Inorg Chem 2022; 61:12219-12236. [PMID: 35880826 DOI: 10.1021/acs.inorgchem.2c01323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Smart membranes, nanodevices, chemical sensors, and catalytic coatings are some of the applications that make the metal-organic framework (MOF) thin films very important. Encapsulation of nanoparticles in the porous structure of MOFs can lead to the formation of effective catalysts with new unique properties and wide range of applications that may not be obtained by MOFs individually. Three main strategies, ship-in-a-bottle, bottle-around-the-ship, and in situ synthesis including the simultaneous formation of the two components, were applied for the synthesis of Pt(0)@zeolitic imidazolate framework-8 (ZIF-8) thin films at the toluene/water interface. The effects of platinum precursor transfer directions toward the interface on the properties of the films were investigated by using the [PtCl2(cod)] (where cod = cis,cis-1,5-cyclooctadiene) complex soluble in toluene as the upper phase and K2PtCl4 soluble in water as the lower phase. The six obtained films with different morphologies were applied as electrocatalysts for the methanol oxidation reaction. Considerable current density, mass activity, catalyst stability, activation energy, exchange current density, maximum power, and long-term poisoning rate are some of the advantages of the Pt(0)@ZIF-8 catalysts synthesized using the in situ strategy and K2PtCl4 as the platinum precursor. Furthermore, we report the formation of Pt@ZIF-8 nanorods at the interfaces without using any stabilizer or template. Our results suggest that the in situ strategy at the liquid/liquid interface is one of the best procedures for the synthesis of Pt(0)@ZIF-8 thin films as a suitable anode electrocatalyst for methanol fuel cells.
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Affiliation(s)
- Golandam Askarisarvestani
- Prof. Rashidi Laboratory of Organometallic Chemistry & Material Chemistry, Department of Chemistry, College of Sciences, Shiraz University, Shiraz 7194684795, Iran
| | - S Jafar Hoseini
- Prof. Rashidi Laboratory of Organometallic Chemistry & Material Chemistry, Department of Chemistry, College of Sciences, Shiraz University, Shiraz 7194684795, Iran
| | - Mehrangiz Bahrami
- Prof. Rashidi Laboratory of Organometallic Chemistry & Material Chemistry, Department of Chemistry, College of Sciences, Shiraz University, Shiraz 7194684795, Iran
| | - S Masoud Nabavizadeh
- Prof. Rashidi Laboratory of Organometallic Chemistry & Material Chemistry, Department of Chemistry, College of Sciences, Shiraz University, Shiraz 7194684795, Iran
| | - Elvira De Giglio
- Dipartimento di Chimica, Università Degli Studi di Bari "Aldo Moro", Bari I-70125, Italy
| | - Wei Chen
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
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3
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Yavari Z, Shaybani S, Saffari J, Kerman K, Noroozifar M. Stoichiometry influence of oxide support on the catalytic efficiency of nano-palladium towards CH3OH electrooxidation. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-020-01485-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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Gopal N, Kumar S, Sahney R. Towards the development of flexible carbon nanotube–parafilm nanocomposites and their application as bioelectrodes. RSC Adv 2021; 11:34193-34205. [PMID: 35497312 PMCID: PMC9042332 DOI: 10.1039/d1ra01840j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 09/21/2021] [Indexed: 11/21/2022] Open
Abstract
Soft, flexible and conductive interfaces, which can be used as electrode materials integrated with commercial electronic components and the human body for continuous monitoring of different analytes are in high demand in wearable electronics.
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Affiliation(s)
- N. Gopal
- Amity Institute of Biotechnology, AUUP, Noida, India-201303
| | - S. Kumar
- St. Stephens College, Delhi University, New Delhi, India
| | - R. Sahney
- Amity Institute of Biotechnology, AUUP, Noida, India-201303
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5
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Montiel G, Fuentes-Quezada E, Bruno MM, Corti HR, Viva FA. Effect of bimodal mesoporous carbon as PtRu catalyst support for direct methanol fuel cells. RSC Adv 2020; 10:30631-30639. [PMID: 35516039 PMCID: PMC9056354 DOI: 10.1039/d0ra05676f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 08/09/2020] [Indexed: 11/21/2022] Open
Abstract
Mesoporous carbons (MCs) with different pore sizes were synthesized and evaluated as a catalyst support for fuel cells. The MCs were obtained from resorcinol-formaldehyde precursors, polymerized in the presence of polydiallyldimethylammonium chloride (cationic polyelectrolyte) as a structuring agent and commercial silica (Sipernat® or Aerosil®) as the hard template. The MC obtained with Aerosil® shows a broad pore size distribution with a maximum at 21 nm. On the other hand, the MCs with Sipernat® show a bimodal pore size distribution, with a narrow peak centered at 5 nm and a broad peak with a maximum ca. 30 nm. All MCs present a high specific surface area (800-1000 m2 g-1) and total pore volume ranging from 1.36 to 1.69 cm3 g-1. PtRu nanoparticles were deposited onto the MC support by an impregnation-reduction method with NaBH4 at 80 °C in basic media. The electrochemical characterization reveals improved electrocatalysis towards the methanol oxidation for the catalyst deposited over the carbon with the highest total pore volume. This catalyst also presented the highest CO2 conversion efficiency, ca. 80%, for the methanol oxidation as determined by differential electrochemical mass spectroscopy analysis. Moreover, the catalyst as a fuel cell anode showed the best performance, reaching a power density of 125 mW cm-2 at 90 °C with methanol as fuel and dry O2.
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Affiliation(s)
- Gonzalo Montiel
- Instituto Nacional de Tecnología Industrial Av. General Paz 5445 San Martín Buenos Aires Argentina.,Departamento de Física de la Materia Condensada, Comisión Nacional de Energía Atómica Av. General Paz 1499, San Martín Buenos Aires Argentina .,Instituto de Nanociencia y Nanotecnología, CNEA-CONICETCentro Atómico Constituyentes Av Gral Paz 1499, San Martin Buenos Aires Argentina
| | - Eduardo Fuentes-Quezada
- Departamento de Física de la Materia Condensada, Comisión Nacional de Energía Atómica Av. General Paz 1499, San Martín Buenos Aires Argentina .,Instituto de Nanociencia y Nanotecnología, CNEA-CONICETCentro Atómico Constituyentes Av Gral Paz 1499, San Martin Buenos Aires Argentina
| | - Mariano M Bruno
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto, Facultad de Cs. Exactas Físico Química y Naturales, Departamento de Química 5800 Río Cuarto Argentina
| | - Horacio R Corti
- Departamento de Física de la Materia Condensada, Comisión Nacional de Energía Atómica Av. General Paz 1499, San Martín Buenos Aires Argentina .,Instituto de Nanociencia y Nanotecnología, CNEA-CONICETCentro Atómico Constituyentes Av Gral Paz 1499, San Martin Buenos Aires Argentina
| | - Federico A Viva
- Departamento de Física de la Materia Condensada, Comisión Nacional de Energía Atómica Av. General Paz 1499, San Martín Buenos Aires Argentina .,Instituto de Nanociencia y Nanotecnología, CNEA-CONICETCentro Atómico Constituyentes Av Gral Paz 1499, San Martin Buenos Aires Argentina
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6
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Kaedi F, Yavari Z, Noroozifar M, Saravani H. Promoted electrocatalytic ability of the Pd on doped Pt in NiO-MgO solid solution toward methanol and ethanol oxidation. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.09.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Yu X, Xu Z, Yang Z, Xu S, Zhang Q, Ling Y, Zhang Y, Cai W. SiO 2 decoration dramatically enhanced the stability of PtRu electrocatalysts with undetectable deterioration in fuel cell performance. NANOTECHNOLOGY 2018; 29:245401. [PMID: 29620529 DOI: 10.1088/1361-6528/aabbfa] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Prevention of Ru dissolution is essential for steady CO tolerance of anodic electrocatalysts in direct methanol fuel cells. Here, we demonstrate a facile way to stabilize Ru atoms by decorating commercial CB/PtRu with SiO2, which shows a six-fold higher stability and similar activity toward a methanol oxidation reaction leading to no discernible degradation in fuel cell performance compared to commercial CB/PtRu electrocatalysts. The higher stability and stable CO tolerance of SiO2-decorated electrocatalysts originate from the SiO2 coating, since Ru atoms are partially ionized during SiO2 decorating, resulting in difficulties in dissolution; while, in the case of commercial CB/PtRu, the dissolved Ru offers active sites for Pt coalescences and CO species resulting in the rapid decay of the electrochemical surface area and fuel cell performance. To the best of our knowledge, this is the first study about the stabilization of Ru atoms by SiO2. The highest stability is obtained for a PtRu electrocatalyst with negligible effect on the electrochemical properties.
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Affiliation(s)
- Xinxin Yu
- Sustainable Energy Laboratory, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan, People's Republic of China
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Tran TQN, Yoon SW, Park BJ, Yoon HH. CeO2-modified LaNi0.6Fe0.4O3 perovskite and MWCNT nanocomposite for electrocatalytic oxidation and detection of urea. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.04.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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9
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Catalytic ability of novel Pt/MCM-41 for fuel cells. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1296-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Affiliation(s)
- Basu Maan Daas
- Department of Chemistry; Government Degree College, Dharmanagar; Tripura India
| | - Susanta Ghosh
- Integrated Science Education & Research Centre, Visva-Bharati; Santiniketan, W. B. India
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11
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Growth of urchin-like ZnCo2O4 microspheres on nickel foam as a binder-free electrode for high-performance supercapacitor and methanol electro-oxidation. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.06.118] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Wang X, Yang C, Yan M, Yu J. A sensitive Pb2+ testing method based on aptamer-functionalized peroxidase-like 3D-flower MoS2 microspheres. NEW J CHEM 2017. [DOI: 10.1039/c7nj00832e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We, herein, report a sensitive EC bioanalytical protocol for the detection of Pb2+ based on AuPt–MCNTs as a platform and 3D-flower MoS2–GR hybrids as signal probes. This method showed a good linear relationship between the current response and the Pb2+ concentration. It can be widely utilized for the identification of other target molecules.
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Affiliation(s)
- Xiu Wang
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Chunlei Yang
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Mei Yan
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
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13
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Fuel cell applications of chemically synthesized zeolite modified electrode (ZME) as catalyst for alcohol electro-oxidation - A review. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.11.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Poochai C, Veerasai W, Somsook E, Dangtip S. Dealloyed ternary Cu@Pt-Ru core-shell electrocatalysts supported on carbon paper for methanol electrooxidation catalytic activity. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.11.098] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Doubek G, Sekol RC, Li J, Ryu WH, Gittleson FS, Nejati S, Moy E, Reid C, Carmo M, Linardi M, Bordeenithikasem P, Kinser E, Liu Y, Tong X, Osuji CO, Schroers J, Mukherjee S, Taylor AD. Guided Evolution of Bulk Metallic Glass Nanostructures: A Platform for Designing 3D Electrocatalytic Surfaces. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:1940-1949. [PMID: 26689722 DOI: 10.1002/adma.201504504] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 10/16/2015] [Indexed: 06/05/2023]
Abstract
Electrochemical devices such as fuel cells, electrolyzers, lithium-air batteries, and pseudocapacitors are expected to play a major role in energy conversion/storage in the near future. Here, it is demonstrated how desirable bulk metallic glass compositions can be obtained using a combinatorial approach and it is shown that these alloys can serve as a platform technology for a wide variety of electrochemical applications through several surface modification techniques.
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Affiliation(s)
- Gustavo Doubek
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06520, USA
- Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, 06520, USA
- Hydrogen and Fuel Cell Center, Nuclear and Energy Research Institute, IPEN/CNEN, SP. Av. Prof. Lineu Prestes, 2242, Cidade Universitária Lineu Prestes Cidade Universitária, São Paulo, SP, 05508-000, Brazil
| | - Ryan C Sekol
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06520, USA
- Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, 06520, USA
| | - Jinyang Li
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06520, USA
- Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, 06520, USA
| | - Won-Hee Ryu
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06520, USA
| | - Forrest S Gittleson
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06520, USA
| | - Siamak Nejati
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06520, USA
- Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, 06520, USA
| | - Eric Moy
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06520, USA
- Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, 06520, USA
| | - Candy Reid
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06520, USA
- Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, 06520, USA
| | - Marcelo Carmo
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06520, USA
- Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, 06520, USA
| | - Marcelo Linardi
- Hydrogen and Fuel Cell Center, Nuclear and Energy Research Institute, IPEN/CNEN, SP. Av. Prof. Lineu Prestes, 2242, Cidade Universitária Lineu Prestes Cidade Universitária, São Paulo, SP, 05508-000, Brazil
| | - Punnathat Bordeenithikasem
- Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, 06520, USA
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT, 06520, USA
| | - Emily Kinser
- Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, 06520, USA
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT, 06520, USA
| | - Yanhui Liu
- Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, 06520, USA
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT, 06520, USA
| | - Xiao Tong
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Chinedum O Osuji
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06520, USA
- Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, 06520, USA
| | - Jan Schroers
- Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, 06520, USA
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT, 06520, USA
| | - Sundeep Mukherjee
- Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, 06520, USA
| | - André D Taylor
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06520, USA
- Center for Research on Interface Structures and Phenomena, Yale University, New Haven, CT, 06520, USA
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Bedolla-Valdez Z, Verde-Gómez Y, Valenzuela-Muñiz A, Gochi-Ponce Y, Oropeza-Guzmán M, Berhault G, Alonso-Núñez G. Sonochemical synthesis and characterization of Pt/CNT, Pt/TiO2, and Pt/CNT/TiO2 electrocatalysts for methanol electro-oxidation. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.10.084] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Calderón J, García G, Querejeta A, Alcaide F, Calvillo L, Lázaro M, Rodríguez J, Pastor E. Carbon monoxide and methanol oxidations on carbon nanofibers supported Pt–Ru electrodes at different temperatures. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.09.121] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Huang T, Mao S, Zhou G, Zhang Z, Wen Z, Huang X, Ci S, Chen J. A high-performance catalyst support for methanol oxidation with graphene and vanadium carbonitride. NANOSCALE 2015; 7:1301-1307. [PMID: 25500628 DOI: 10.1039/c4nr05244g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this study, a graphene-vanadium carbonitride (G-V(C, N)) hybrid is reported as a novel support for the Pt catalyst in methanol oxidation. The catalytic activity of the Pt/G-V(C, N) hybrid for methanol oxidation is greatly enhanced compared with that of a commercial Pt/C catalyst with carbon black as the catalyst support. The outstanding catalytic activity of the Pt/G-V(C, N) catalyst suggests the potential of using graphene-metal carbonitride as the catalyst support in fuel cells.
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Affiliation(s)
- Taizhong Huang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
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Yan Y, Miao J, Yang Z, Xiao FX, Yang HB, Liu B, Yang Y. Carbon nanotube catalysts: recent advances in synthesis, characterization and applications. Chem Soc Rev 2015; 44:3295-346. [DOI: 10.1039/c4cs00492b] [Citation(s) in RCA: 480] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Carbon nanotubes are promising materials for various applications.
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Affiliation(s)
- Yibo Yan
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Jianwei Miao
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Zhihong Yang
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Fang-Xing Xiao
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Hong Bin Yang
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Bin Liu
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| | - Yanhui Yang
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
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Suleiman A, Menéndez CL, Polanco R, Fachini ER, Hernández-Lebrón Y, Guinel MJF, Roque-Malherbe R, Cabrera CR. Rotating disk slurry electrodeposition of platinum at Y-zeolite/carbon Vulcan XC-72R for methanol oxidation in alkaline media. RSC Adv 2015. [DOI: 10.1039/c4ra05877a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Platinum was electrodeposited onto Y-zeolite and Y-zeolite (Y)/Vulcan XC-72R (V) to produce Pt/Y/V and Pt/Y catalysts using a rotating disk slurry electrode technique.
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Affiliation(s)
- Amal Suleiman
- Department of Chemistry and Molecular Sciences Research Building
- University of Puerto Rico
- San Juan
| | - Christian L. Menéndez
- Department of Chemistry and Molecular Sciences Research Building
- University of Puerto Rico
- San Juan
| | - Ramón Polanco
- Institute for Physical Chemical Applied Research
- School of Science
- University of Turabo
- Gurabo
| | - Esteban Rosim Fachini
- Department of Physical Sciences
- General Studies College
- University of Puerto Rico
- Río Piedras Campus
- San Juan
| | - Yaritza Hernández-Lebrón
- Department of Chemistry and Molecular Sciences Research Building
- University of Puerto Rico
- San Juan
| | - Maxime J.-F. Guinel
- Department of Chemistry and Molecular Sciences Research Building
- University of Puerto Rico
- San Juan
- Department of Physics
- University of Puerto Rico
| | - Rolando Roque-Malherbe
- Institute for Physical Chemical Applied Research
- School of Science
- University of Turabo
- Gurabo
| | - Carlos R. Cabrera
- Department of Chemistry and Molecular Sciences Research Building
- University of Puerto Rico
- San Juan
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Franceschini EA, Bruno MM, Williams FJ, Viva FA, Corti HR. High-activity mesoporous Pt/Ru catalysts for methanol oxidation. ACS APPLIED MATERIALS & INTERFACES 2013; 5:10437-10444. [PMID: 24083938 DOI: 10.1021/am403471c] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
High activity mesoporous Pt/Ru catalysts with 2D-hexagonal structure were synthesized using a triblock poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) copolymer (Pluronic F127) template. The normalized mass activities for the methanol oxidation reaction (MOR) of the Pt/Ru catalysts with a regular array of pores is higher than those reported for nanoparticulated Pt/Ru catalysts. Different kinetic parameters, as Tafel slope and activation energy, were obtained for the MOR on the mesoporous catalysts. Results indicated that catalysts performance depends on pore size. Mass activities and the CO2 conversion efficiency for large pore size mesoporous catalysts (10 nm) are greater than those reported for smaller pore size mesoporous catalysts with similar composition. The effect of pore size on catalysts performance is related to the greater accessibility of methanol to the active areas inside large pores. Consequently, the overall residence time of methanol increases as compared with mesoporous catalyst with small pores.
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Affiliation(s)
- Esteban A Franceschini
- Grupo de Celdas de Combustible, Departamento de Física de la Materia Condensada, Centro Atómico Constituyentes, CNEA . 1650, Buenos Aires, Argentina
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22
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Ataee-Esfahani H, Nemoto Y, Imura M, Yamauchi Y. Facile Synthesis of Nanoporous Pt-Ru Alloy Spheres with Various Compositions toward Highly Active Electrocatalysts. Chem Asian J 2012; 7:876-80. [DOI: 10.1002/asia.201200053] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Indexed: 11/09/2022]
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