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Xin D, Liu X, Chen B, Jin X, Hao J, Wang Y, Hu R, Fu J, Wang S, Zhu W, Zhuang Z. In Situ-Grown Ultrathin Catalyst Layers for Improving both Proton Exchange Membrane Fuel Cell and Anion Exchange Membrane Fuel Cell Performances. ACS APPLIED MATERIALS & INTERFACES 2024; 16:42363-42371. [PMID: 39078706 DOI: 10.1021/acsami.4c10725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
The mass transport and ion conductivity in the catalyst layer are important for fuel cell performances. Here, we report an in situ-grown ultrathin catalyst layer (UTCL) to reduce the oxygen mass transport and a surface ionomer-coated gas diffusion layer method to reduce the ion conducting resistance. A significantly reduced catalyst layer thickness (ca. 1 μm) is achieved, and coupled with the ionomer introduction method, the ultrathin catalyst layer is in good contact with the membrane, resulting in high ion conductivity and high Pt utilization. This ultrathin catalyst layer is suitable for both proton exchange membrane fuel cells and anion exchange membrane fuel cells, giving peak power densities of 2.24 and 1.11 W cm-2, respectively, which represent an increase of more than 30% compared with the membrane electrode assembly (MEA) fabricated by using traditional Pt/C power catalysts. Electrochemical impedance spectra and limiting current tests demonstrate the reduced charge transfer, mass transfer, and ohmic resistances in the ultrathin catalyst layer membrane electrode assembly, resulting in the promoted fuel cell performances.
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Affiliation(s)
- Dongyue Xin
- State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xuerui Liu
- State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Bowen Chen
- State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiaoxiao Jin
- State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jinyuan Hao
- State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yuxin Wang
- State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ruanbo Hu
- State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jinchen Fu
- State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shunzhong Wang
- State Power Investment Corporation Hydrogen Energy Company, Co., Ltd., Beijing 102600, China
| | - Wei Zhu
- State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhongbin Zhuang
- State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, China
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2
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Ram R, Xia L, Benzidi H, Guha A, Golovanova V, Garzón Manjón A, Llorens Rauret D, Sanz Berman P, Dimitropoulos M, Mundet B, Pastor E, Celorrio V, Mesa CA, Das AM, Pinilla-Sánchez A, Giménez S, Arbiol J, López N, García de Arquer FP. Water-hydroxide trapping in cobalt tungstate for proton exchange membrane water electrolysis. Science 2024; 384:1373-1380. [PMID: 38900890 DOI: 10.1126/science.adk9849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 05/13/2024] [Indexed: 06/22/2024]
Abstract
The oxygen evolution reaction is the bottleneck to energy-efficient water-based electrolysis for the production of hydrogen and other solar fuels. In proton exchange membrane water electrolysis (PEMWE), precious metals have generally been necessary for the stable catalysis of this reaction. In this work, we report that delamination of cobalt tungstate enables high activity and durability through the stabilization of oxide and water-hydroxide networks of the lattice defects in acid. The resulting catalysts achieve lower overpotentials, a current density of 1.8 amperes per square centimeter at 2 volts, and stable operation up to 1 ampere per square centimeter in a PEMWE system at industrial conditions (80°C) at 1.77 volts; a threefold improvement in activity; and stable operation at 1 ampere per square centimeter over the course of 600 hours.
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Affiliation(s)
- Ranit Ram
- ICFO - Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
| | - Lu Xia
- ICFO - Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
| | - Hind Benzidi
- ICIQ-CERCA - Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, 43007 Tarragona, Spain
| | - Anku Guha
- ICFO - Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
| | - Viktoria Golovanova
- ICFO - Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
| | - Alba Garzón Manjón
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
| | - David Llorens Rauret
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
| | - Pol Sanz Berman
- ICIQ-CERCA - Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, 43007 Tarragona, Spain
| | - Marinos Dimitropoulos
- ICFO - Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
| | - Bernat Mundet
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
| | - Ernest Pastor
- CNRS, Université de Rennes, IPR (Institut de Physique de Rennes) - UMR 6251, Rennes, France
- CNRS, Université de Rennes, DYNACOM (Dynamical Control of Materials Laboratory) - IRL2015, The University of Tokyo, 7-3-1 Hongo, Tokyo 113-0033, Japan
| | - Veronica Celorrio
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK
| | - Camilo A Mesa
- Institute of Advanced Materials (INAM), Universitat Jaume I, 12006 Castelló, Spain
| | - Aparna M Das
- ICFO - Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
| | - Adrián Pinilla-Sánchez
- ICFO - Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
| | - Sixto Giménez
- Institute of Advanced Materials (INAM), Universitat Jaume I, 12006 Castelló, Spain
| | - Jordi Arbiol
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Núria López
- ICIQ-CERCA - Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, 43007 Tarragona, Spain
| | - F Pelayo García de Arquer
- ICFO - Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
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3
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Sukhbaatar B, Qing W, Seo J, Yoon S, Yoo B. Uniformly dispersed ruthenium nanoparticles on porous carbon from coffee waste outperform platinum for hydrogen evolution reaction in alkaline media. Sci Rep 2024; 14:5850. [PMID: 38462651 PMCID: PMC10925596 DOI: 10.1038/s41598-024-56510-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 03/07/2024] [Indexed: 03/12/2024] Open
Abstract
Biowaste-derived carbon materials are a sustainable, environmentally friendly, and cost-effective way to create valuable materials. Activated carbon can be a supporting material for electrocatalysts because of its large specific surface area and porosity. However, activated carbon has low catalytic activity and needs to be functionalized with heteroatoms, metals, and combinations to improve conductivity and catalytic activity. Ruthenium (Ru) catalysts have great potential to replace bench market catalysts in hydrogen evolution reaction (HER) applications due to their similar hydrogen bond strength and relatively lower price. This study reports on the synthesis and characterizations of carbon-supported Ru catalysts with large surface areas (~ 1171 m2 g-1) derived from coffee waste. The uniformly dispersed Ru nanoparticles on the porous carbon has excellent electrocatalytic activity and outperformed the commercial catalyst platinum on carbon (Pt/C) toward the HER. As-synthesized catalyst needed only 27 mV to reach a current density of 10 mA cm-2, 58.4 mV dec-1 Tafel slope, and excellent long-term stability. Considering these results, the Ru nanoparticles on coffee waste-derived porous carbon can be utilized as excellent material that can replace platinum-based catalysts for the HER and contribute to the development of eco-friendly and low-cost electrocatalyst materials.
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Affiliation(s)
- Bayaraa Sukhbaatar
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, 15588, Korea
| | - Wang Qing
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, 15588, Korea
| | - Jinmyeong Seo
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, 15588, Korea
| | - Sanghwa Yoon
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, 15588, Korea.
| | - Bongyoung Yoo
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan, 15588, Korea.
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Manna N, Singh M, Kurungot S. Microporous 3D-Structured Hierarchically Entangled Graphene-Supported Pt 3Co Alloy Catalyst for PEMFC Application with Process-Friendly Features. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37267475 DOI: 10.1021/acsami.3c03372] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
To improve the oxygen reduction reaction (ORR) performance in a proton-exchange membrane fuel cell (PEMFC) cathode with respect to mass activity and durability, a suitable electrocatalyst design strategy is essentially needed. Here, we have prepared a sub-three nm-sized platinum (Pt)-cobalt (Co) alloy (Pt3Co)-supported N-doped microporous 3D graphene (Pt3Co/pNEGF) by using the polyol synthesis method. A microwave-assisted synthesis method was employed to prepare the catalyst based on the 3D porous carbon support with a large pore volume and dense micro-/mesoporous surfaces. The ORR performance of Pt3Co/pNEGF closely matches with the state-of-the-art commercial Pt/C catalyst in 0.1 M HClO4, with a small overpotential of 10 mV. The 3D microporous structure of the N-doped graphene significantly improves the mass transport of the reactant and thus the overall ORR performance. As a result of the lower loading of Pt in Pt3Co/pNEGF as compared to that in Pt/C, the alloy catalyst achieved 1.5 times higher mass activity than Pt/C. After 10,000 cycles, the difference in the electrochemically active surface area (ECSA) and half-wave potential (E1/2) of Pt3Co/pNEGF is found to be 5 m2 gPt-1 (ΔECSA) and 24 mV (ΔE1/2), whereas, for Pt/C, these values are 9 m2 gPt-1 and 32 mV, respectively. Finally, in a realistic perspective, single-cell testing of a membrane electrode assembly (MEA) was made by sandwiching the Pt3Co/pNEGF-coated gas diffusion layers as the cathode displayed a maximum power density of 800 mW cm-2 under H2-O2 feed conditions with a clear indication of helping the system in the mass-transfer region (i.e., the high current dragging condition). The nature of the I-V polarization shows a progressively lower slope in this region of the polarization plot compared to a similar system made from its Pt/C counterpart and a significantly improved performance throughout the polarization region in the case of the system made from the Pt3Co/NEGF catalyst (without the microwave treatment) counterpart. These results validate the better process friendliness of Pt3Co/pNEGF as a PEMFC electrode-specific catalyst owing to its unique texture with 3D architecture and well-defined porosity with better structural endurance.
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Affiliation(s)
- Narugopal Manna
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Mayank Singh
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Sreekumar Kurungot
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
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5
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Ke S, Qiu L, Zhao W, Sun C, Cui B, Xu G, Dou M. Understanding of Correlation between Electronic Properties and Sulfur Tolerance of Pt-Based Catalysts for Hydrogen Oxidation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:7768-7778. [PMID: 35104117 DOI: 10.1021/acsami.1c18905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Renewable power-derived green hydrogen distributed via natural gas networks is considered one of the viable routes to drive the decarbonization of transportation and distributed power generation, while a trace amount of sulfur impurities is one of the key factors that affect the durability and life cycle expense of proton-exchange membrane fuel cells (PEMFCs) for end users. Herein, we explore the underlying effect of sulfur resistance for Pt-based hydrogen oxidation reaction (HOR) electrocatalysts devoted to high-performance and durable PEMFCs. Two typical electrocatalysts, Pt/C with pure Pt nanoparticles (NPs) and PtCo/C with Pt3Co-alloy-core-Pt-skin NPs, were investigated to demonstrate the structure-property relation for Pt-based electrocatalysts. It was revealed that the PtCo/C demonstrated alleviated sulfur poisoning with the adsorption rate constant reduced by 21.7% compared with Pt/C, and the desorption of the adsorbed sulfur was also more favorable with Pt-S bond decomposition temperature lowered by approximately 25 °C. Characterization indicated that sulfur was predominantly adsorbed in the edge mode for PtCo/C, but in a comparable edge and bridge mode for Pt/C, which caused the strengthened Pt-S binding by the chelation effect for Pt/C. The lowered d-band center of surface Pt for PtCo/C, tuned by electron transfer from Co to Pt and Pt lattice strain, was also found responsible for the weakened Pt-S interaction. The recovery test based on electro-oxidation suggested that PtCo/C also outperformed Pt/C with faster and more thorough release of HOR active sites. The SO42- species derived from electro-oxidation of S2- was more apt to adsorb on Pt/C than PtCo/C because of its stronger affinity to SO42- caused by the higher d-band center of Pt. Therefore, it is clarified that adequate modification of the Pt d-band center, for example, negatively tuned for the state-of-the-art Pt/C, is crucial to improve the sulfur resistance and recovery capability for Pt-based electrocatalysts while reserving comparable HOR activity. In particular, the investigated PtCo/C electrocatalyst is a better choice over Pt/C for more durable PEMFC anodes.
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Affiliation(s)
- Shaojie Ke
- Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Limei Qiu
- Sinopec Research Institute of Petroleum Processing, Beijing 100083, China
| | - Wenhui Zhao
- Sinopec Research Institute of Petroleum Processing, Beijing 100083, China
| | - Chaoyong Sun
- Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Bolan Cui
- Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Guangtong Xu
- Sinopec Research Institute of Petroleum Processing, Beijing 100083, China
| | - Meiling Dou
- Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China
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6
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NiPd mediated by conductive metal organic frameworks with facilitated electron transfer for assaying of H2O2 released from living cells. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115985] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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7
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Talebi A, Omrani A, Rostami H, Jamshidi Roodbari N. Modification of commercial Pt/C catalyst by cobalt for enhanced electro-oxidation of ethanol. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2021.1980035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ali Talebi
- Department of Physical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
| | - Abdollah Omrani
- Department of Physical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
| | - Hussein Rostami
- Department of Physical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
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8
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Platinum substituted Cobalt(II, III) Oxide: Interplay of tetrahedral Co(II) sites towards electrochemical oxygen evolution activity. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137234] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Ni W, Wang T, Schouwink PA, Chuang Y, Chen HM, Hu X. Efficient Hydrogen Oxidation Catalyzed by Strain‐Engineered Nickel Nanoparticles. Angew Chem Int Ed Engl 2020; 59:10797-10801. [DOI: 10.1002/anie.201916314] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/27/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Weiyan Ni
- Laboratory of Inorganic Synthesis and CatalysisInstitute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL) BCH 3305 1015 Lausanne Switzerland
| | - Teng Wang
- Laboratory of Inorganic Synthesis and CatalysisInstitute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL) BCH 3305 1015 Lausanne Switzerland
- Beijing National Laboratory for Molecular Sciences (BNLMS)College of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Pascal Alexander Schouwink
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL) 1950 Sion Switzerland
| | - Yu‐Chun Chuang
- Materials Science GroupNational Synchrotron Radiation Research Center (NSRRC) 101 Hsin-Ann Road, Hsinchu Science Park Hsinchu 30076 Taiwan
| | - Hao Ming Chen
- Department of ChemistryNational (Taiwan) University Taipei 10617 Taiwan
| | - Xile Hu
- Laboratory of Inorganic Synthesis and CatalysisInstitute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL) BCH 3305 1015 Lausanne Switzerland
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10
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Ni W, Wang T, Schouwink PA, Chuang Y, Chen HM, Hu X. Efficient Hydrogen Oxidation Catalyzed by Strain‐Engineered Nickel Nanoparticles. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916314] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Weiyan Ni
- Laboratory of Inorganic Synthesis and CatalysisInstitute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL) BCH 3305 1015 Lausanne Switzerland
| | - Teng Wang
- Laboratory of Inorganic Synthesis and CatalysisInstitute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL) BCH 3305 1015 Lausanne Switzerland
- Beijing National Laboratory for Molecular Sciences (BNLMS)College of Chemistry and Molecular EngineeringPeking University Beijing 100871 China
| | - Pascal Alexander Schouwink
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL) 1950 Sion Switzerland
| | - Yu‐Chun Chuang
- Materials Science GroupNational Synchrotron Radiation Research Center (NSRRC) 101 Hsin-Ann Road, Hsinchu Science Park Hsinchu 30076 Taiwan
| | - Hao Ming Chen
- Department of ChemistryNational (Taiwan) University Taipei 10617 Taiwan
| | - Xile Hu
- Laboratory of Inorganic Synthesis and CatalysisInstitute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL) BCH 3305 1015 Lausanne Switzerland
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11
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Burhan H, Ay H, Kuyuldar E, Sen F. Monodisperse Pt-Co/GO anodes with varying Pt: Co ratios as highly active and stable electrocatalysts for methanol electrooxidation reaction. Sci Rep 2020; 10:6114. [PMID: 32273553 PMCID: PMC7145861 DOI: 10.1038/s41598-020-63247-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 03/27/2020] [Indexed: 11/09/2022] Open
Abstract
The intense demand for alternative energy has led to efforts to find highly efficient and stable electrocatalysts for the methanol oxidation reaction. For this purpose, herein, graphene oxide-based platinum-cobalt nanoparticles (Pt100-xCox@GO NPs) were synthesized in different ratios and the synthesized nanoparticles were used directly as an efficient electrocatalyst for methanol oxidation reaction (MOR). The characterizations for the determination of particle size and surface composition of nanoparticles were performed by transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The structure of the catalysts was detected as face-centered cubic and the dispersion of them on graphene oxide was homogenous (distributed narrowly (4.01 ± 0.51 nm)). Cyclic voltammetry (CV) and chronoamperometry (CA) was utilized for testing electrocatalytic activities of all prepared NPs for the methanol oxidation reaction. It was detected that the newly produced NPs were more active and stable than commercially existing Pt(0)/Co nanomaterial in methanol electro-oxidation in acidic media.
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Affiliation(s)
- Hakan Burhan
- Sen Research Group, Biochemistry Department, Faculty of Arts and Science, Dumlupınar University, Evliya Çelebi Campus, 43100, Kütahya, Turkey
| | - Hasan Ay
- Sen Research Group, Biochemistry Department, Faculty of Arts and Science, Dumlupınar University, Evliya Çelebi Campus, 43100, Kütahya, Turkey
| | - Esra Kuyuldar
- Sen Research Group, Biochemistry Department, Faculty of Arts and Science, Dumlupınar University, Evliya Çelebi Campus, 43100, Kütahya, Turkey
| | - Fatih Sen
- Sen Research Group, Biochemistry Department, Faculty of Arts and Science, Dumlupınar University, Evliya Çelebi Campus, 43100, Kütahya, Turkey.
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12
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Sesu DC, Marbaniang P, Ingavale S, Manohar AC, Kakade B. Bi‐Co‐Cu Metal Oxide Foam as Significant Electrocatalyst for Methanol Electrooxidation. ChemistrySelect 2020. [DOI: 10.1002/slct.201904127] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Divya Catherin Sesu
- SRM Research InstituteSRM Institute of Science and Technology, Kattankulathur - 603 203 Chennai India
- Department of Physics and NanotechnologySRM Institute of Science and Technology, Kattankulathur - 603 203 Chennai India
| | - Phiralang Marbaniang
- SRM Research InstituteSRM Institute of Science and Technology, Kattankulathur - 603 203 Chennai India
- Department of ChemistrySRM Institute of Science and Technology, Kattankulathur - 603 203 Chennai India
| | - Sagar Ingavale
- SRM Research InstituteSRM Institute of Science and Technology, Kattankulathur - 603 203 Chennai India
- Department of ChemistrySRM Institute of Science and Technology, Kattankulathur - 603 203 Chennai India
| | | | - Bhalchandra Kakade
- SRM Research InstituteSRM Institute of Science and Technology, Kattankulathur - 603 203 Chennai India
- Department of ChemistrySRM Institute of Science and Technology, Kattankulathur - 603 203 Chennai India
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13
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Sandström R, Ekspong J, Gracia-Espino E, Wågberg T. Oxidatively induced exposure of active surface area during microwave assisted formation of Pt 3Co nanoparticles for oxygen reduction reaction. RSC Adv 2019; 9:17979-17987. [PMID: 35520556 PMCID: PMC9064685 DOI: 10.1039/c9ra02095k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 05/25/2019] [Indexed: 11/21/2022] Open
Abstract
The oxygen reduction reaction (ORR), the rate-limiting reaction in proton exchange membrane fuel cells, can efficiently be facilitated by properly manufactured platinum catalysts alloyed with late 3d transition metals. Herein we synthesize a platinum : cobalt nanoparticulate catalyst with a 3 : 1 atomic ratio by reduction of a dry metalorganic precursor blend within a commercial household microwave oven. The formed nanoparticles are simultaneously anchored to a carbon black support that enables large Pt surface area. Two separate microwave treatment steps were employed, where step one constitutes a fast oxidative treatment for revealing active surface area while a reductive secondary annealing treatment promotes a Pt rich surface. The resulting Pt3Co/C catalyst (∼3.4 nm) demonstrates an enhanced ORR activity directly attributed to incorporated Co with a specific and mass activity of 704 μA cmPt−2 and 352 A gPt−1 corresponding to an increase by 279% and 66% respectively compared to a commercial Pt/C (∼1.8 nm) catalyst measured under identical conditions. The method's simplicity, scalability and novelty is expected to further assist in Pt–Co development and bring the catalyst one step closer toward commercialization and utility in fuel cells. The oxygen reduction reaction (ORR) is efficiently facilitated platinum catalysts alloyed with Co and reveal high electrochemically active surface area via rapid microwave synthesis.![]()
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Affiliation(s)
| | - Joakim Ekspong
- Department of Physics, Umeå University Umeå 90187 Sweden
| | | | - Thomas Wågberg
- Department of Physics, Umeå University Umeå 90187 Sweden
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14
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Chen JY, Lim SC, Kuo CH, Tuan HY. Sub-1 nm PtSn ultrathin sheet as an extraordinary electrocatalyst for methanol and ethanol oxidation reactions. J Colloid Interface Sci 2019; 545:54-62. [DOI: 10.1016/j.jcis.2019.02.082] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/24/2019] [Accepted: 02/25/2019] [Indexed: 10/27/2022]
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15
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Tang X, Fang D, Qu L, Xu D, Qin X, Qin B, Song W, Shao Z, Yi B. Carbon-supported ultrafine Pt nanoparticles modified with trace amounts of cobalt as enhanced oxygen reduction reaction catalysts for proton exchange membrane fuel cells. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(19)63304-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Deng K, Xu Y, Li C, Wang Z, Xue H, Li X, Wang L, Wang H. PtPdRh Mesoporous Nanospheres: An Efficient Catalyst for Methanol Electro-Oxidation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:413-419. [PMID: 30567437 DOI: 10.1021/acs.langmuir.8b03656] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Porous multimetallic alloyed nanostructures possess unique physical and chemical properties to generate promising potential in fuel cells. However, the controllable synthesis of this kind of materials still remains challenging. Herein, we report a facile method for the one-pot, high-yield synthesis of trimetallic PtPdRh mesoporous nanospheres (PtPdRh MNs) under mild conditions. The resultant PtPdRh MNs possess the features of uniform shape, a narrow size distribution, plenty of well-defined mesopores, highly open structure, and multicomponent effects, which impart advantages such as large surface area, favorable mass diffusion, high utilization of electrocatalysts, and synergy among the various metal components. Benefitting from the synergetic effects originating from the multimetallic composition and unique mesoporous structure, the as-prepared PtPdRh MNs exhibit remarkably enhanced electrocatalytic performance for methanol oxidation reaction relative to bimetallic PtPd MNs and commercial Pt/C catalyst.
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Affiliation(s)
- Kai Deng
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , P. R. China
| | - You Xu
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , P. R. China
| | - Chunjie Li
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , P. R. China
| | - Ziqiang Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , P. R. China
| | - Hairong Xue
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , P. R. China
| | - Xiaonian Li
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , P. R. China
| | - Liang Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , P. R. China
| | - Hongjing Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , P. R. China
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Li A, Duan W, Liu J, Zhuo K, Chen Y, Wang J. Electrochemical synthesis of AuPt nanoflowers in deep eutectic solvent at low temperature and their application in organic electro-oxidation. Sci Rep 2018; 8:13141. [PMID: 30177708 PMCID: PMC6120876 DOI: 10.1038/s41598-018-31402-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 08/13/2018] [Indexed: 11/16/2022] Open
Abstract
Deep eutectic solvents (DESs), called a new generation of green solvents, have broad applied in synthesis of nanomaterials due to their remarkable physicochemical properties. In this work, we used a unique strategy (adding moderate water (10%) to DES) to effectively prepare nanomaterials. Flower-like AuPt alloy nanoparticles were successfully synthesized using one-step electrochemical reduction method at a low potential of −0.30 V (vs. Pt) and a low temperature of 30 °C. In this process, the DES acted as solvent and shape-directing agent. More importantly, we used the electrode modified with the as-prepared nanomaterials as the anode to the electrochemical oxidation synthesis. The glassy carbon electrode modified with the AuPt nanoflowers was directly employed to the electro-oxidation of xanthene (XT) to xanthone (XO) under a constant low potential of 0.80 V (vs. Ag/AgCl) and room temperature, with a high yield of XO. Moreover, the synthesis process was milder and more environment-friendly than conventional organic syntheses. This new strategy would have a promising application in electroorganic synthesis fields.
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Affiliation(s)
- Aoqi Li
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Wanyi Duan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Jianming Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Kelei Zhuo
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China.
| | - Yujuan Chen
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Jianji Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China.
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