1
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Chen L, Zhang P, Jin YQ, Yang H, Sheng T, Yan Y, Wang T, Chen Z, Tian N, Li X, Zhou ZY, Sun SG. Enhancing CO Tolerance in PEMFC Anodes via Thermal Oxidation Induced RuO 2 Blocking Shell on a PtRu/C Catalyst. NANO LETTERS 2024; 24:10642-10649. [PMID: 39158134 DOI: 10.1021/acs.nanolett.4c02999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/20/2024]
Abstract
CO poisoning in Pt-based anode catalysts significantly hampers the proton exchange membrane fuel cell (PEMFC) performance. Despite great advances in CO-tolerant catalysts, their effectiveness is often limited to fundamental three-electrode systems, which is inadequate for practical PEMFC applications. Herein, we present a straightforward thermal oxidation strategy for constructing a Ru oxide blocking layer on commercial PtRu/C through a one-step Ru-segregation-and-oxidation process. The resulting 0.7 nm thick Ru oxide layer effectively inhibits CO adsorption while maintaining hydrogen oxidation activity. PtRu@RuO2/C demonstrates exceptional CO tolerance, enduring 1% CO in rotating disk electrode tests, an ∼10-fold improvement compared to that of PtRu/C. Crucially, it retains high HOR activity and CO tolerance in PEMFC, with negligible polarization curve loss in the presence of 100 ppm CO. Notably, 85% HOR activity is retained after a 4 h stability test. This enhancement contributes to the Ru oxide layer decelerating CO adsorption kinetics, rather than promoting CO oxidation via the classic bifunctional mechanism.
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Affiliation(s)
- Lina Chen
- College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China
| | - Pengyang Zhang
- College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China
| | - Yan-Qi Jin
- College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China
| | - Huijuan Yang
- School of Materials Science and Engineering, Institute of Advanced Electrochemical Energy, Shaanxi International Joint Research Centre of Surface Technology for Energy Storage Materials, Xi'an University of Technology, Xi'an 710048, China
| | - Tian Sheng
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Yifan Yan
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford OX1 3TA, U.K
| | - Tao Wang
- College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China
| | - Zhixin Chen
- College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China
| | - Na Tian
- College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China
| | - Xifei Li
- School of Materials Science and Engineering, Institute of Advanced Electrochemical Energy, Shaanxi International Joint Research Centre of Surface Technology for Energy Storage Materials, Xi'an University of Technology, Xi'an 710048, China
| | - Zhi-You Zhou
- College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China
| | - Shi-Gang Sun
- College of Chemistry and Chemical Engineering, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, China
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2
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Wu J, Gao X, Liu G, Qiu X, Xia Q, Wang X, Zhu W, He T, Zhou Y, Feng K, Wang J, Huang H, Liu Y, Shao M, Kang Z, Zhang X. Immobilizing Ordered Oxophilic Indium Sites on Platinum Enabling Efficient Hydrogen Oxidation in Alkaline Electrolyte. J Am Chem Soc 2024; 146:20323-20332. [PMID: 38995375 DOI: 10.1021/jacs.4c05844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
Addressing the sluggish kinetics in the alkaline hydrogen oxidation reaction (HOR) is a pivotal yet challenging step toward the commercialization of anion-exchange membrane fuel cells (AEMFCs). Here, we have successfully immobilized indium (In) atoms in an orderly fashion into platinum (Pt) nanoparticles supported by reduced graphene oxide (denoted as O-Pt3In/rGO), significantly enhancing alkaline HOR kinetics. We have revealed that the ordered atomic matrix enables uniform and optimized hydrogen binding energy (HBE), hydroxyl binding energy (OHBE), and carbon monoxide binding energy (COBE) across the catalyst. With a mass activity of 2.3066 A mg-1 at an overpotential of 50 mV, over 10 times greater than that of Pt/C, the catalyst also demonstrates admirable CO resistance and stability. Importantly, the AEMFC implementing this catalyst as the anode catalyst has achieved an impressive power output compared to Pt/C. This work not only highlights the significance of constructing ordered oxophilic sites for alkaline HOR but also sheds light on the design of well-structured catalysts for energy conversion.
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Affiliation(s)
- Jie Wu
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, Jiangsu, China
| | - Xin Gao
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China
| | - Guimei Liu
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong, China
| | - Xiaoyi Qiu
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong, China
| | - Qing Xia
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China
| | - Xinzhong Wang
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China
| | - Wenxiang Zhu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, Jiangsu, China
| | - Tiwei He
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, Jiangsu, China
| | - Yunjie Zhou
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, Jiangsu, China
| | - Kun Feng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, Jiangsu, China
| | - Jiaxuan Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, Jiangsu, China
| | - Hui Huang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, Jiangsu, China
| | - Yang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, Jiangsu, China
| | - Minhua Shao
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong, China
- Energy Institute, and Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong, China
- CAS-HK Joint Laboratory for Hydrogen Energy, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong, China
- Guangzhou Key Laboratory of Electrochemical Energy Storage Technologies, Fok Ying Tung Research Institute, The Hong Kong University of Science and Technology, Guangzhou, Guangdong 511458, China
| | - Zhenhui Kang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, Jiangsu, China
| | - Xiao Zhang
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China
- Research Institute for Advanced Manufacturing, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR 999077, China
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3
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Cho J, Kim B, Venkateshalu S, Chung DY, Lee K, Choi SI. Electrochemically Activatable Liquid Organic Hydrogen Carriers and Their Applications. J Am Chem Soc 2023; 145:16951-16965. [PMID: 37439128 DOI: 10.1021/jacs.2c13324] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Hydrogen has been chosen as an environmentally benign energy source to replace fossil-fuel-based energy systems. Since hydrogen is difficult to store and transport in its gaseous phase, thermochemical liquid organic hydrogen carriers (LOHCs) have been developed as one of the alternative technologies. However, the high temperature and pressure requirements of thermochemical LOHC systems result in huge energy waste and impracticality. This Perspective proposes electrochemical (EC)-LOHCs capable of more efficient, safer, and lower temperature and pressure hydrogen storage/utilization. To enable this technology, several EC-LOHC candidates such as isopropanol, phenolic compounds, and organic acids are described, and the latest research trends and design concepts of related homo/hetero-based electrocatalysts are discussed. In addition, we propose efficient fuel-cell-based systems that implement electrochemical (de)hydrogenation of EC-LOHCs and present prospects for relevant technologies.
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Affiliation(s)
- Juhyun Cho
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Byeongyoon Kim
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Sandhya Venkateshalu
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Dong Young Chung
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Sang-Il Choi
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea
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4
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Zhu P, Wu ZY, Elgazzar A, Dong C, Wi TU, Chen FY, Xia Y, Feng Y, Shakouri M, Kim JYT, Fang Z, Hatton TA, Wang H. Continuous carbon capture in an electrochemical solid-electrolyte reactor. Nature 2023; 618:959-966. [PMID: 37380692 DOI: 10.1038/s41586-023-06060-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 04/06/2023] [Indexed: 06/30/2023]
Abstract
Electrochemical carbon-capture technologies, with renewable electricity as the energy input, are promising for carbon management but still suffer from low capture rates, oxygen sensitivity or system complexity1-6. Here we demonstrate a continuous electrochemical carbon-capture design by coupling oxygen/water (O2/H2O) redox couple with a modular solid-electrolyte reactor7. By performing oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) redox electrolysis, our device can efficiently absorb dilute carbon dioxide (CO2) molecules at the high-alkaline cathode-membrane interface to form carbonate ions, followed by a neutralization process through the proton flux from the anode to continuously output a high-purity (>99%) CO2 stream from the middle solid-electrolyte layer. No chemical inputs were needed nor side products generated during the whole carbon absorption/release process. High carbon-capture rates (440 mA cm-2, 0.137 mmolCO2 min-1 cm-2 or 86.7 kgCO2 day-1 m-2), high Faradaic efficiencies (>90% based on carbonate), high carbon-removal efficiency (>98%) in simulated flue gas and low energy consumption (starting from about 150 kJ per molCO2) were demonstrated in our carbon-capture solid-electrolyte reactor, suggesting promising practical applications.
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Affiliation(s)
- Peng Zhu
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - Zhen-Yu Wu
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - Ahmad Elgazzar
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - Changxin Dong
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX, USA
| | - Tae-Ung Wi
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - Feng-Yang Chen
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - Yang Xia
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - Yuge Feng
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - Mohsen Shakouri
- Canadian Light Source Inc., University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Jung Yoon Timothy Kim
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - Zhiwei Fang
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - T Alan Hatton
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Haotian Wang
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA.
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX, USA.
- Department of Chemistry, Rice University, Houston, TX, USA.
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5
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Development of Pt-based catalysts towards methanol electrooxidation as promising materials for the anode of a direct methanol fuel cell. J APPL ELECTROCHEM 2023. [DOI: 10.1007/s10800-022-01841-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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6
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Yang Z, Chen C, Zhao Y, Wang Q, Zhao J, Waterhouse GIN, Qin Y, Shang L, Zhang T. Pt Single Atoms on CrN Nanoparticles Deliver Outstanding Activity and CO Tolerance in the Hydrogen Oxidation Reaction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2208799. [PMID: 36314386 DOI: 10.1002/adma.202208799] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 10/19/2022] [Indexed: 06/16/2023]
Abstract
The large-scale application of proton exchange membrane fuel cells is currently hampered by high cost of commercial Pt catalysts and their susceptibility to poisoning by CO impurities in H2 feed. In this context, the development of CO-tolerant electrocatalysts with high Pt atom utilization efficiency for hydrogen oxidation reaction (HOR) is of critical importance. Herein, Pt single atoms are successfully immobilized on chromium nitride nanoparticles by atomic layer deposition method, denoted as Pt SACs/CrN. Electrochemical tests establish Pt SACs/CrN to be a very efficient HOR catalyst, with a mass activity that is 5.7 times higher than commercial PtRu/C. Strikingly, the excellent performance of Pt SACs/CrN is maintained after introducing 1000 ppm of CO in H2 feed. The excellent CO-tolerance of Pt SACs/CrN is related to weaker CO adsorption on Pt single atoms. This work provides guidelines for the design and construction of active and CO-tolerant catalysts for HOR.
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Affiliation(s)
- Zhaojun Yang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chaoqiu Chen
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, P. R. China
| | - Yunxuan Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Qing Wang
- School of Chemical Sciences, The University of Auckland, Auckland, 1142, New Zealand
| | - Jiaqi Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | | | - Yong Qin
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, P. R. China
| | - Lu Shang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Tierui Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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7
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Pakdel S, Erfan-Niya H, Azamat J. CO2/CH4 mixed-gas separation through carbon nitride membrane: A molecular dynamics simulation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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8
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Ruan J, Chen Y, Zhao G, Li P, Zhang B, Jiang Y, Ma T, Pan H, Dou SX, Sun W. Cobalt Single Atoms Enabling Efficient Methanol Oxidation Reaction on Platinum Anchored on Nitrogen-Doped Carbon. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107067. [PMID: 35491508 DOI: 10.1002/smll.202107067] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 03/28/2022] [Indexed: 06/14/2023]
Abstract
Developing efficient platinum (Pt)-based electrocatalysts with high tolerance to CO poisoning for the methanol oxidation reaction is critical for the development of direct methanol fuel cells. In this work, cobalt single atoms are introduced to enhance the electrocatalytic performance of N-doped carbon supported Pt (N-C/Pt) for the methanol oxidation reaction. The cobalt single atoms are believed to play a critical role in accelerating the prompt oxidation of CO to CO2 and minimizing the CO blocking of the adjacent Pt active sites. Benefitting from the synergistic effects among the Co single atoms, the Pt nanoparticles, and the N-doped carbon support, the Co-modified N-C/Pt (Co-N-C/Pt) electrocatalyst simultaneously delivers impressive electrocatalytic activity and durability with lower onset potential and superb CO poisoning resistance as compared to the N-C/Pt and the commercial Pt/C electrocatalysts.
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Affiliation(s)
- Jiufeng Ruan
- School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, P. R. China
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Yaping Chen
- School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Guoqiang Zhao
- School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Peng Li
- Centre for Translational Atomaterials, Faculty of Science Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Bingxing Zhang
- School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Yinzhu Jiang
- School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Tianyi Ma
- Centre for Translational Atomaterials, Faculty of Science Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Hongge Pan
- School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, P. R. China
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Shi Xue Dou
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Wenping Sun
- School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, P. R. China
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9
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Yang H, Zhang A, Bai Y, Chu M, Li H, Liu Y, Zhu P, Chen X, Deng C, Yuan X. One Stone Two Birds: Unlocking the Synergy between Amorphous Ni(OH) 2 and Pd Nanocrystals toward Ethanol and Formic Acid Oxidation. Inorg Chem 2022; 61:14419-14427. [PMID: 36037068 DOI: 10.1021/acs.inorgchem.2c02307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Even though extensive efforts have been devoted to mixing Pd nanocrystals with Ni(OH)2 for the enhanced synergy, it remains a great challenge to incorporate nanosized Ni(OH)2 species on the Pd electrode and reveal their synergy. Herein, we present spongelike Pd nanocrystals with the modification of amorphous Ni(OH)2 species. The catalyst configuration is first considered by compositing Pd with Ni(OH)2 species to optimize the Pd-Pd interatomic distance and then constructing a strongly coupled interface between Pd nanostructures and Ni(OH)2 species. For the ethanol oxidation reaction (EOR) and the formic acid oxidation reaction (FAOR), Pd-Ni(OH)2 composites exhibit an impressive mass activity of 4.98 and 2.65 A mgPd-1, respectively. Most impressively, there is no significant decrease in the EOR activity during five consecutive cycles (50 000 s). A series of CO-poisoning tests have proved that the enhanced EOR and FAOR performances involve synergy between Pd nanostructures and Ni(OH)2 species.
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Affiliation(s)
- Hu Yang
- School of Chemistry and Chemical Engineering, Nantong University, 9 Seyuan Road, Nantong 226019, China
| | - Aichuang Zhang
- School of Chemistry and Chemical Engineering, Nantong University, 9 Seyuan Road, Nantong 226019, China
| | - Yunfei Bai
- Space Power Technology State Key Laboratory, Shanghai Institute of Space Power-Sources, 2965 Dongchuan Road, Shanghai 200245, China
| | - Mingyu Chu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Han Li
- School of Chemistry and Chemical Engineering, Nantong University, 9 Seyuan Road, Nantong 226019, China
| | - Yuan Liu
- School of Chemistry and Chemical Engineering, Nantong University, 9 Seyuan Road, Nantong 226019, China
| | - Peng Zhu
- School of Chemistry and Chemical Engineering, Nantong University, 9 Seyuan Road, Nantong 226019, China
| | - Xiaolei Chen
- School of Chemistry and Chemical Engineering, Nantong University, 9 Seyuan Road, Nantong 226019, China
| | - Chengwei Deng
- Space Power Technology State Key Laboratory, Shanghai Institute of Space Power-Sources, 2965 Dongchuan Road, Shanghai 200245, China
| | - Xiaolei Yuan
- School of Chemistry and Chemical Engineering, Nantong University, 9 Seyuan Road, Nantong 226019, China
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10
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Chiang TH, Rao KN, Hsu JW. Cerium Vanadium Oxide Enhanced Methanol Electrooxidation Reaction and Carbon Monoxide Tolerance Performance in Direct Methanol Fuel Cells. Electrocatalysis (N Y) 2022. [DOI: 10.1007/s12678-022-00762-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Zhang Z, Lees EW, Ren S, Mowbray BAW, Huang A, Berlinguette CP. Conversion of Reactive Carbon Solutions into CO at Low Voltage and High Carbon Efficiency. ACS CENTRAL SCIENCE 2022; 8:749-755. [PMID: 35756379 PMCID: PMC9228564 DOI: 10.1021/acscentsci.2c00329] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Indexed: 06/03/2023]
Abstract
Electrolyzers are now capable of reducing carbon dioxide (CO2) into products at high reaction rates but are often characterized by low energy efficiencies and low CO2 utilization efficiencies. We report here an electrolyzer that reduces 3.0 M KHCO3(aq) into CO(g) at a high rate (partial current density for CO of 220 mA cm-2) and a CO2 utilization efficiency of 40%, at a voltage of merely 2.3 V. These results were made possible by using: (i) a reactive carbon solution enriched in KHCO3 as the feedstock instead of gaseous CO2; (ii) a cation exchange membrane instead of an anion exchange membrane, which is common to the field; and (iii) the hydrogen oxidation reaction (HOR) at the anode instead of the oxygen evolution reaction (OER). The voltage reported here is the lowest reported for any CO2 to CO electrolyzer that operates at high current densities (i.e., a partial current density for CO greater than 200 mA cm-2) with a CO2 utilization efficiency of greater than 20%. This study highlights how the choice of feedstock, membrane, and anode chemistries affects the rate and efficiency at which CO2 is converted into products.
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Affiliation(s)
- Zishuai Zhang
- Department
of Chemistry, The University of British
Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Eric W. Lees
- Department
of Chemical and Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z3, Canada
| | - Shaoxuan Ren
- Department
of Chemistry, The University of British
Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Benjamin A. W. Mowbray
- Department
of Chemistry, The University of British
Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Aoxue Huang
- Department
of Chemistry, The University of British
Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Curtis P. Berlinguette
- Department
of Chemistry, The University of British
Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
- Department
of Chemical and Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z3, Canada
- Stewart
Blusson Quantum Matter Institute, The University
of British Columbia, 2355 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
- Canadian
Institute for Advanced Research (CIFAR), 661 University Avenue, Toronto, OntarioM5G 1M1, Canada
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12
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Ugartemendia A, Mercero JM, de Cózar A, Jimenez-Izal E. Does the Composition in PtGe Clusters Play any Role in Fighting CO Poisoning?. J Chem Phys 2022; 156:174301. [DOI: 10.1063/5.0089179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The high catalytic activity of Pt is accompanied by a high affinity for CO, making it extremely susceptible to poisoning. Such CO poisoning limits the use of proton exchange membrane fuel cells. In this work, using state-of-the-art global minima search techniques and exhaustive electronic structure characterization, the dopant concentration is pinpointed as a crucial factor to improve the CO tolerance of Pt catalysts. By investigating PtGe nanoclusters of different size and composition we found that, for those clusters with roughly the same amount of Pt and Ge, the binding to CO is weakened significantly. The uniqueness of the PtGe equimolar clusters is traced down to the electronic effects. The strong covalency and electrostatic stabilization arising from the advantageous Pt-Ge mixing, make the equimolar clusters highly resistant towards CO poisoning and therefore, more durable. Importantly, the novel catalysts are not only more resistant to deactivation, but they remain catalytically active towards hydrogen oxidation. Representative clusters are additionally deposited on graphene with a pentagon-octagon-pentagon (5-8-5) reconstructed divacancy. The remarkable results of free-standing clusters hold true for surface mounted clusters, in which the interaction with CO is dramatically weakened for those compounds with 1:1 Pt:Ge ratio. Our results demonstrate that Ge can be a promising alloying agent to mitigate the deactivation of Pt and that the dopant concentration is a critical factor in the design of advanced catalysts.
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Affiliation(s)
- Andoni Ugartemendia
- Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia Saila, University of the Basque Country - Gipuzkoa Campus, Spain
| | - Jose M Mercero
- Kimika Fakultatea, Euskal Herriko Unibertsitatea (UPV/EHU), Spain
| | - Abel de Cózar
- Organic Chemistry I, University of the Basque Country - Gipuzkoa Campus, Spain
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13
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Poerwoprajitno AR, Gloag L, Watt J, Cheong S, Tan X, Lei H, Tahini HA, Henson A, Subhash B, Bedford NM, Miller BK, O’Mara PB, Benedetti TM, Huber DL, Zhang W, Smith SC, Gooding JJ, Schuhmann W, Tilley RD. A single-Pt-atom-on-Ru-nanoparticle electrocatalyst for CO-resilient methanol oxidation. Nat Catal 2022. [DOI: 10.1038/s41929-022-00756-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Carbon Monoxide Tolerant Pt-Based Electrocatalysts for H2-PEMFC Applications: Current Progress and Challenges. Catalysts 2021. [DOI: 10.3390/catal11091127] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The activity degradation of hydrogen-fed proton exchange membrane fuel cells (H2-PEMFCs) in the presence of even trace amounts of carbon monoxide (CO) in the H2 fuel is among the major drawbacks currently hindering their commercialization. Although significant progress has been made, the development of a practical anode electrocatalyst with both high CO tolerance and stability has still not occurred. Currently, efforts are being devoted to Pt-based electrocatalysts, including (i) alloys developed via novel synthesis methods, (ii) Pt combinations with metal oxides, (iii) core–shell structures, and (iv) surface-modified Pt/C catalysts. Additionally, the prospect of substituting the conventional carbon black support with advanced carbonaceous materials or metal oxides and carbides has been widely explored. In the present review, we provide a brief introduction to the fundamental aspects of CO tolerance, followed by a comprehensive presentation and thorough discussion of the recent strategies applied to enhance the CO tolerance and stability of anode electrocatalysts. The aim is to determine the progress made so far, highlight the most promising state-of-the-art CO-tolerant electrocatalysts, and identify the contributions of the novel strategies and the future challenges.
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15
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Chen HS, Benedetti TM, Lian J, Cheong S, O’Mara PB, Sulaiman KO, Kelly CHW, Scott RWJ, Gooding JJ, Tilley RD. Role of the Secondary Metal in Ordered and Disordered Pt–M Intermetallic Nanoparticles: An Example of Pt3Sn Nanocubes for the Electrocatalytic Methanol Oxidation. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05370] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hsiang-Sheng Chen
- School of Chemistry and Australian Centre for NanoMedicine, University of New South Wales, Sydney 2052, Australia
| | - Tania M. Benedetti
- School of Chemistry and Australian Centre for NanoMedicine, University of New South Wales, Sydney 2052, Australia
| | - Jiaxin Lian
- School of Chemistry and Australian Centre for NanoMedicine, University of New South Wales, Sydney 2052, Australia
| | - Soshan Cheong
- Mark Wainwright Analytical Centre, University of New South Wales, Sydney 2052, Australia
| | - Peter B. O’Mara
- School of Chemistry and Australian Centre for NanoMedicine, University of New South Wales, Sydney 2052, Australia
| | - Kazeem O. Sulaiman
- Mark Wainwright Analytical Centre, University of New South Wales, Sydney 2052, Australia
| | - Cameron H. W. Kelly
- School of Chemistry and Australian Centre for NanoMedicine, University of New South Wales, Sydney 2052, Australia
| | - Robert W. J. Scott
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, Saskatchewan S7N 5C9, Canada
| | - J. Justin Gooding
- School of Chemistry and Australian Centre for NanoMedicine, University of New South Wales, Sydney 2052, Australia
- Australian Research Council Centre of Excellence in Convergent Bio-Nano Science and Technology, University of New South Wales, Sydney 2052, Australia
| | - Richard D. Tilley
- School of Chemistry and Australian Centre for NanoMedicine, University of New South Wales, Sydney 2052, Australia
- Mark Wainwright Analytical Centre, University of New South Wales, Sydney 2052, Australia
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16
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Araujo RB, Martín-Yerga D, Santos ECD, Cornell A, Pettersson LG. Elucidating the role of Ni to enhance the methanol oxidation reaction on Pd electrocatalysts. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136954] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Effect of different surface functional groups on carbon supports toward methanol electro-oxidation of Pt nanoparticles. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.113931] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Elangovan A, Xu J, Sekar A, Liu B, Li J. Enhancing Methanol Oxidation Reaction with Platinum‐based Catalysts using a N‐Doped Three‐dimensional Graphitic Carbon Support. ChemCatChem 2020. [DOI: 10.1002/cctc.202001162] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ayyappan Elangovan
- Department of Chemistry Kansas State University Manhattan, Kansas 66506 USA
| | - Jiayi Xu
- Tim Taylor Department of Chemical Engineering Kansas State University Manhattan, Kansas 66506 USA
| | - Archana Sekar
- Department of Chemistry Kansas State University Manhattan, Kansas 66506 USA
| | - Bin Liu
- Tim Taylor Department of Chemical Engineering Kansas State University Manhattan, Kansas 66506 USA
| | - Jun Li
- Department of Chemistry Kansas State University Manhattan, Kansas 66506 USA
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19
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Chowdhury SR, Maiyalagan T, Bhattachraya SK, Gayen A. Influence of phosphorus on the electrocatalytic activity of palladium nickel nanoalloy supported on N-doped reduced graphene oxide for ethanol oxidation reaction. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136028] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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20
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Understanding the interplay of bifunctional and electronic effects: Microkinetic modeling of the CO electro-oxidation reaction. J Catal 2020. [DOI: 10.1016/j.jcat.2020.02.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Pu L, Fan H, Maheshwari V. Formation of microns long thin wire networks with a controlled spatial distribution of elements. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02365h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
By controlling the spatial distribution of elements using a simple self-assembly process, the catalytic performance can be enhanced.
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Affiliation(s)
- Long Pu
- Department of Chemistry
- University of Waterloo
- Waterloo
- N2L 3G1 Canada
- Waterloo Institute for Nanotechnology
| | - Hua Fan
- Department of Chemistry
- University of Waterloo
- Waterloo
- N2L 3G1 Canada
- Waterloo Institute for Nanotechnology
| | - Vivek Maheshwari
- Department of Chemistry
- University of Waterloo
- Waterloo
- N2L 3G1 Canada
- Waterloo Institute for Nanotechnology
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22
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Polani S, Shviro M, Shokhen V, Zysler M, Glüsen A, Dunin-Borkowski R, Carmo M, Zitoun D. Size dependent oxygen reduction and methanol oxidation reactions: catalytic activities of PtCu octahedral nanocrystals. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00772b] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Synthesis of PtCu octahedral nanocatalysts with controlled size and strain exhibit excellent oxygen reduction reaction, but leads to higher onset over-potentials in methanol oxidation reaction and CO-stripping.
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Affiliation(s)
- Shlomi Polani
- Department of Chemistry
- Bar-Ilan Institute for Technology and Advanced Materials (BINA)
- Bar-Ilan University
- Ramat Gan
- Israel
| | - Meital Shviro
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute
- Forschungszentrum Jülich GmbH
- 52425 Jülich
- Germany
- Institute of Electrochemical and Climate Research IEK-14
| | - Victor Shokhen
- Department of Chemistry
- Bar-Ilan Institute for Technology and Advanced Materials (BINA)
- Bar-Ilan University
- Ramat Gan
- Israel
| | - Melina Zysler
- Department of Chemistry
- Bar-Ilan Institute for Technology and Advanced Materials (BINA)
- Bar-Ilan University
- Ramat Gan
- Israel
| | - Andreas Glüsen
- Institute of Electrochemical and Climate Research IEK-14
- Forschungszentrum Jülich GmbH
- 52425 Jülich
- Germany
| | - Rafal Dunin-Borkowski
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute
- Forschungszentrum Jülich GmbH
- 52425 Jülich
- Germany
| | - Marcelo Carmo
- Institute of Electrochemical and Climate Research IEK-14
- Forschungszentrum Jülich GmbH
- 52425 Jülich
- Germany
| | - David Zitoun
- Department of Chemistry
- Bar-Ilan Institute for Technology and Advanced Materials (BINA)
- Bar-Ilan University
- Ramat Gan
- Israel
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23
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Wu P, Wu Z, Mullins DR, Yang SZ, Han X, Zhang Y, Foo GS, Li H, Zhu W, Dai S, Zhu H. Promoting Pt catalysis for CO oxidation via the Mott-Schottky effect. NANOSCALE 2019; 11:18568-18574. [PMID: 31287484 DOI: 10.1039/c9nr04055b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
CO oxidation is an important reaction both experimentally and industrially, and its performance is usually dominated by the charge states of catalysts. For example, CO oxidation on the platinum (Pt) surface requires a properly charged state for the balance of adsorption and activation of CO and O2. Here, we present "Mott-Schottky modulated catalysis" on Pt nanoparticles (NPs) via an electron-donating carbon nitride (CN) support with a tunable Fermi level. We demonstrate that properly-charged Pt presents an excellent catalytic CO oxidation activity with an initial conversion temperature as low as 25 °C and total CO conversion below 85 °C. The tunable electronic structure of Pt NPs, which is regulated by the Fermi level of CN, is a key factor in dominating the catalytic performance. This "Mott-Schottky modulated catalysis" concept may be extended to maneuver the charge state on other metal catalysts for targeted catalytic reactions.
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Affiliation(s)
- Peiwen Wu
- School of Chemistry and Chemical Engineering; Institute for Energy Research, Jiangsu University, Zhenjiang, 212013, China. and Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.
| | - Zili Wu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.
| | - David R Mullins
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.
| | - Shi-Ze Yang
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
| | - Xue Han
- Chemical Engineering, Virginia Tech, Blacksburg, VA 24061, USA.
| | - Yafen Zhang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.
| | - Guo Shiou Foo
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.
| | - Huaming Li
- School of Chemistry and Chemical Engineering; Institute for Energy Research, Jiangsu University, Zhenjiang, 212013, China.
| | - Wenshuai Zhu
- School of Chemistry and Chemical Engineering; Institute for Energy Research, Jiangsu University, Zhenjiang, 212013, China.
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.
| | - Huiyuan Zhu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA. and Chemical Engineering, Virginia Tech, Blacksburg, VA 24061, USA.
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24
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Min J, Jeffery AA, Kim Y, Jung N. Electrochemical Analysis for Demonstrating CO Tolerance of Catalysts in Polymer Electrolyte Membrane Fuel Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1425. [PMID: 31597387 PMCID: PMC6835550 DOI: 10.3390/nano9101425] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 09/29/2019] [Accepted: 10/01/2019] [Indexed: 12/01/2022]
Abstract
Since trace amounts of CO in H2 gas produced by steam reforming of methane causes severe poisoning of Pt-based catalysts in polymer electrolyte membrane fuel cells (PEMFCs), research has been mainly devoted to exploring CO-tolerant catalysts. To test the electrochemical property of CO-tolerant catalysts, chronoamperometry is widely used under a CO/H2 mixture gas atmosphere as an essential method. However, in most cases of catalysts with high CO tolerance, the conventional chronoamperometry has difficulty in showing the apparent performance difference. In this study, we propose a facile and precise test protocol to evaluate the CO tolerance via a combination of short-term chronoamperometry and a hydrogen oxidation reaction (HOR) test. The degree of CO poisoning is systematically controlled by changing the CO adsorption time. The HOR polarization curve is then measured and compared with that measured without CO adsorption. When the electrochemical properties of PtRu alloy catalysts with different atomic ratios of Pt to Ru are investigated, contrary to conventional chronoamperometry, these catalysts exhibit significant differences in their CO tolerance at certain CO adsorption times. The present work will facilitate the development of catalysts with extremely high CO tolerance and provide insights into the improvement of electrochemical methods.
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Affiliation(s)
- Jiho Min
- Graduate School of Energy Science and Technology (GEST), Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Korea.
| | - A Anto Jeffery
- Graduate School of Energy Science and Technology (GEST), Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Korea.
| | - Youngjin Kim
- Graduate School of Energy Science and Technology (GEST), Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Korea.
| | - Namgee Jung
- Graduate School of Energy Science and Technology (GEST), Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Korea.
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25
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Catalytic production of impurity-free V 3.5+ electrolyte for vanadium redox flow batteries. Nat Commun 2019; 10:4412. [PMID: 31562304 PMCID: PMC6764956 DOI: 10.1038/s41467-019-12363-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 09/04/2019] [Indexed: 12/03/2022] Open
Abstract
The vanadium redox flow battery is considered one of the most promising candidates for use in large-scale energy storage systems. However, its commercialization has been hindered due to the high manufacturing cost of the vanadium electrolyte, which is currently prepared using a costly electrolysis method with limited productivity. In this work, we present a simpler method for chemical production of impurity-free V3.5+ electrolyte by utilizing formic acid as a reducing agent and Pt/C as a catalyst. With the catalytic reduction of V4+ electrolyte, a high quality V3.5+ electrolyte was successfully produced and excellent cell performance was achieved. Based on the result, a prototype catalytic reactor employing Pt/C-decorated carbon felt was designed, and high-speed, continuous production of V3.5+ electrolyte in this manner was demonstrated with the reactor. This invention offers a simple but practical strategy to reduce the production cost of V3.5+ electrolyte while retaining quality that is adequate for high-performance operations. The vanadium redox flow battery is promising for commercial applications, but is hampered by high-cost electrolytes that are typically prepared via electrolysis. Here the authors demonstrate cost-effective chemical production of a high-quality vanadium electrolyte using platinum nanoparticles as a catalyst.
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26
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Huang J, Liu Y, Xu M, Wan C, Liu H, Li M, Huang Z, Duan X, Pan X, Huang Y. PtCuNi Tetrahedra Catalysts with Tailored Surfaces for Efficient Alcohol Oxidation. NANO LETTERS 2019; 19:5431-5436. [PMID: 31287958 DOI: 10.1021/acs.nanolett.9b01937] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Direct methanol/ethanol alkaline fuel cells (DMAFCs/DEAFCs) represent an attractive mobile power generation technology. The methanol/ethanol oxidation reaction (MOR/EOR) often requires high-performance yet expensive Pt-based catalysts that may be easily poisoned. Herein, we report the development of PtCuNi tetrahedra electrocatalysts with optimized specific activity and mass activity for MOR and EOR. Our synthetic and structural characterizations show that these PtCuNi tetrahedra have Cu-rich core and PtNi-rich shell with tunable surface composition. Electrocatalytic studies demonstrate that Pt56Cu28Ni16 exhibits exceptional MOR and EOR specific activities of 14.0 ± 1.0 mA/cm2 and 11.2 ± 1.0 mA/cm2, respectively and record high mass activity of 7.0 ± 0.5 A/mgPt and 5.6 ± 0.6 A/mgPt, comparing favorably with the best MOR or EOR Pt alloy-based catalysts reported to date. Furthermore, we show that the unique core-shell tetrahedra configuration can also lead to considerably improved durability.
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Affiliation(s)
| | - Yang Liu
- Department of Chemistry , University of Science and Technology of China , Hefei 230026 , P.R. China
| | - Mingjie Xu
- Fok Ying Tung Research Institute , Hong Kong University of Science and Technology , Guangzhou 511458 , P.R. China
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27
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Yu K, Ning G, Yang J, Wang Y, Zhang X, Qin Y, Luan C, Yu L, Jiang Y, Luan X, Dong Z, Wang H, Dai X. Restructured PtNi on ultrathin nickel hydroxide for enhanced performance in hydrogen evolution and methanol oxidation. J Catal 2019. [DOI: 10.1016/j.jcat.2019.06.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Unmüssig T, Melke J, Fischer A. Synthesis of Pt@TiO2 nanocomposite electrocatalysts for enhanced methanol oxidation by hydrophobic nanoreactor templating. Phys Chem Chem Phys 2019; 21:13555-13568. [DOI: 10.1039/c9cp00502a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work Pt@TiO2 nanocomposite electrocatalysts for methanol oxidation were synthesized using a one-pot process by hydrophobic nanoreactor templating.
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Affiliation(s)
- Tobias Unmüssig
- Institute for Inorganic and Analytical Chemistry
- University of Freiburg
- 79104 Freiburg
- Germany
- FMF – Freiburg Materials Research Center
| | - Julia Melke
- Institute for Inorganic and Analytical Chemistry
- University of Freiburg
- 79104 Freiburg
- Germany
- FMF – Freiburg Materials Research Center
| | - Anna Fischer
- Institute for Inorganic and Analytical Chemistry
- University of Freiburg
- 79104 Freiburg
- Germany
- FMF – Freiburg Materials Research Center
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29
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Park J, Kim HJ, Oh A, Kwon T, Baik H, Choi SI, Lee K. RuO x-decorated multimetallic hetero-nanocages as highly efficient electrocatalysts toward the methanol oxidation reaction. NANOSCALE 2018; 10:21178-21185. [PMID: 30417184 DOI: 10.1039/c8nr06168h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Direct methanol fuel cell technology awaits the development of highly efficient and robust nanocatalysts driving the methanol oxidation reaction (MOR) in a CO poisoning-free fashion. Thus far, various Pt-based alloy nanoparticles have been studied as electrocatalysts toward the MOR, and it has been found that the introduction of dopants such as Ru and Cu to Pt has been particularly successful in mitigating the CO poisoning problem. Herein, we report a facile synthesis of Ru-branched RuPtCu nanocages that involves in situ formation of Ru-doped PtCu nanoparticles and subsequent outgrowth of Ru branches by insertion of additional Ru precursors. We show that the electrocatalytic activity and stability of Ru branched RuPtCu ternary nanocages toward the MOR are greatly improved compared to those of PtCu/C and RuPtCu/C counterparts and state-of-the-art PtRu/C and Pt/C catalysts, mainly due to the synergy between the CO-tolerant RuOx phase and the highly open and robust RuPtCu nanoframe.
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Affiliation(s)
- Jongsik Park
- Department of Chemistry, Korea University, Seoul 02841, Republic of Korea.
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30
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González-Quijano D, Pech-Rodríguez WJ, González-Quijano JA, Escalante-García JI, Morais C, Napporn TW, Rodríguez-Varela FJ. Performance and In-Situ FTIR Evaluation of Pt−Sn/C Electrocatalysts with Several Pt : Sn Atomic Ratios for the Ethanol Oxidation Reaction in Acidic Media. ChemElectroChem 2018. [DOI: 10.1002/celc.201800828] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- D. González-Quijano
- Departamento de Ingeniería Biomédica Centro de Ciencias de la Ingeniería; Universidad Autónoma de Aguascalientes Campus Sur; Av. Prol. Mahatma Gandhi 6601, Col. El Gigante, Aguascalientes, Aguascalientes México C.P. 20340
| | - W. J. Pech-Rodríguez
- Universidad Politécnica de Victoria; Av. Nuevas Tecnologías 5902, Parque Científico y Tecnológico de Tamaulipas, Ciudad Victoria, Tamaulipas C.P. 87138 México
| | - J. A. González-Quijano
- Ingeniería de Procesos Químicos y Biológicos Sostenibles; Universidad Autónoma de Yucatán; Periférico Norte Km. 33.5, Tablaje Catastral 13615, Col. Chuburná de Hidalgo Inn Mérida, Yucatán México. C.P. 97203
| | - J. I. Escalante-García
- Ingeniería Metalúrgica e Ingeniería Cerámica; Cinvestav Unidad Saltillo; Av. Industria Metalúrgica 1062, Parque Industrial Ramos Arizpe. Ramos Arizpe, Coahuila México. C.P. 25900
- Sustentabilidad de los Recursos Naturales y Energía; Cinvestav Unidad Saltillo
| | - C. Morais
- Institut de Chimie des Milieux et des Matériaux de Poitiers, IC2MP, UMR 7285, CNRS; Université de Poitiers, «Equipe SAMCat»; 4 rue Michel Brunet B27 TSA 51106 86073 Poitiers Cedex 09 France
| | - T. W. Napporn
- Institut de Chimie des Milieux et des Matériaux de Poitiers, IC2MP, UMR 7285, CNRS; Université de Poitiers, «Equipe SAMCat»; 4 rue Michel Brunet B27 TSA 51106 86073 Poitiers Cedex 09 France
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31
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Naitabdi A, Boucly A, Rochet F, Fagiewicz R, Olivieri G, Bournel F, Benbalagh R, Sirotti F, Gallet JJ. CO oxidation activity of Pt, Zn and ZnPt nanocatalysts: a comparative study by in situ near-ambient pressure X-ray photoelectron spectroscopy. NANOSCALE 2018; 10:6566-6580. [PMID: 29577122 DOI: 10.1039/c7nr07981h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The investigation of nanocatalysts under ambient pressure by X-ray photoelectron spectroscopy gives access to a wealth of information on their chemical state under reaction conditions. Considering the paradigmatic CO oxidation reaction, a strong synergistic effect on CO catalytic oxidation was recently observed on a partly dewetted ZnO(0001)/Pt(111) single crystal surface. In order to bridge the material gap, we have examined whether this inverse metal/oxide catalytic effect could be transposed on supported ZnPt nanocatalysts deposited on rutile TiO2(110). Synchrotron radiation near-ambient pressure X-ray photoelectron spectroscopy (NAP-XPS) operated at 1 mbar of O2 : CO mixture (4 : 1) was used at a temperature range between room temperature and 450 K. To tackle the complexity of the problem, we have also studied the catalytic activity of nanoparticles (NPs) of the same size, consisting of pure Pt and Zn nanoparticles (NPs), for which, moreover, NAP-XPS studies are a novelty. The comparative approach shows that the CO oxidation process is markedly different for the pure Pt and pure Zn NPs. For pure Pt NPs, CO poisoned the metallic surfaces at low temperature at the onset of CO2 evolution. In contrast, the pure Zn NPs first oxidize into ZnO, and trap carbonates at low temperature. Then they start to release CO2 in the gas phase, at a critical temperature, while continuously producing it. The pure Zn NPs are also immune to support encapsulation. The bimetallic nanoparticle borrows some of its characteristics from its two parent metals. In fact, the ZnPt NP, although produced by the sequential deposition of platinum and zinc, is platinum-terminated below the temperature onset of CO oxidation and poisoned by CO. Above the CO oxidation onset, the nanoparticle becomes Zn-rich with a ZnO shell. Pure Pt and ZnPt NPs present a very similar activity towards CO oxidation, in contrast with what is reported in a single crystal study. The present study demonstrates the effectiveness of NAP-XPS in the study of complex catalytic processes at work on nanocatalysts under near-ambient pressures, and highlights once more the difficulty of transposing single crystal surface observations to the case of nanoobjects.
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Affiliation(s)
- Ahmed Naitabdi
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique Matière et Rayonnement, 4 place Jussieu, 75005 Paris, France.
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32
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Wain AJ, O’Connell MA, Attard GA. Insights into Self-Poisoning during Catalytic Hydrogenation on Platinum Surfaces Using ATR-IR Spectroelectrochemistry. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00492] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrew J. Wain
- National Physical Laboratory, Teddington TW11 0LW, United Kingdom
| | | | - Gary A. Attard
- Department of Physics, The Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
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Shen Y, Zhan Y, Li S, Ning F, Du Y, Huang Y, He T, Zhou X. Methanol-Water Aqueous-Phase Reforming with the Assistance of Dehydrogenases at Near-Room Temperature. CHEMSUSCHEM 2018; 11:864-871. [PMID: 29327513 DOI: 10.1002/cssc.201702359] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Indexed: 06/07/2023]
Abstract
As an excellent hydrogen-storage medium, methanol has many advantages, such as high hydrogen content (12.6 wt %), low cost, and availability from biomass or photocatalysis. However, conventional methanol-water reforming usually proceeds at high temperatures. In this research, we successfully designed a new effective strategy to generate hydrogen from methanol at near-room temperature. The strategy involved two main processes: CH3 OH→HCOOH→H2 and NADH→HCOOH→H2 . The first process (CH3 OH→HCOOH→H2 ) was performed by an alcohol dehydrogenase (ADH), an aldehyde dehydrogenase (ALDH), and an Ir catalyst. The second procedure (NADH→HCOOH→H2 ) was performed by formate dehydrogenase (FDH) and the Ir catalyst. The Ir catalyst used was a previously reported polymer complex catalyst [Cp*IrCl2 (ppy); Cp*=pentamethylcyclopentadienyl, ppy=polypyrrole] with high catalytic activity for the decomposition of formic acid at room temperature and is compatible with enzymes, coenzymes, and poisoning chemicals. Our results revealed that the optimum hydrogen generation rate could reach up to 17.8 μmol h-1 gcat-1 under weak basic conditions at 30 °C. This will have high impact on hydrogen storage, production, and applications and should also provide new inspiration for hydrogen generation from methanol.
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Affiliation(s)
- Yangbin Shen
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| | - Yulu Zhan
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| | - Shuping Li
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| | - Fandi Ning
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| | - Ying Du
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| | - Yunjie Huang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P.R. China
| | - Ting He
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P.R. China
| | - Xiaochun Zhou
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P.R. China
- Key Laboratory of Nanodevices and Applications, Chinese Academy of Sciences, Suzhou, 215123, P.R. China
- CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P.R. China
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Olu PY, Ohnishi T, Mochizuki D, Sugimoto W. Uncovering the real active sites of ruthenium oxide for the carbon monoxide electro-oxidation reaction on platinum: The catalyst acts as a co-catalyst. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.12.070] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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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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Razikazemi S, Rad-Moghadam K, Toorchi-Roudsari S. A nano-composite of magnetite and hot-water-soluble starch: a cooperation resulting in an amplified catalytic activity on water. NEW J CHEM 2018. [DOI: 10.1039/c8nj00718g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cooperation between magnetite and hot-water-soluble starch led to an efficient catalytic activity of their nano-composite in the pseudo three-component synthesis of bis-coumarins and xanthenes.
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Affiliation(s)
- Sanaz Razikazemi
- Chemistry Department
- University campus 2
- University of Guilan
- Rasht
- Iran
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37
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CO electro-oxidation reaction on Pt nanoparticles: Understanding peak multiplicity through thiol derivative molecule adsorption. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.11.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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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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Electrocatalytic performance of Ni@Pt core–shell nanoparticles supported on carbon nanotubes for methanol oxidation reaction. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.04.040] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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40
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Shin K, Zhang L, An H, Ha H, Yoo M, Lee HM, Henkelman G, Kim HY. Interface engineering for a rational design of poison-free bimetallic CO oxidation catalysts. NANOSCALE 2017; 9:5244-5253. [PMID: 28397916 DOI: 10.1039/c7nr01382e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We use density functional theory calculations of Pt@Cu core@shell nanoparticles (NPs) to design bifunctional poison-free CO oxidation catalysts. By calculating the adsorption chemistry under CO oxidation conditions, we find that the Pt@Cu NPs will be active for CO oxidation with resistance to CO-poisoning. The CO oxidation pathway at the Pt-Cu interface is determined on the Pt NP covered with a full- and partial-shell of Cu. The exposed portion of the Pt core preferentially binds CO and the Cu shell binds O2, supplying oxygen for the reaction. The Pt-Cu interface provides CO-oxidation sites that are not poisoned by either CO or O2. Additional computational screening shows that this separation of reactant binding sites is possible for several other core@shell NPs. Our results indicate that the metal-metal interface within a single NP can be optimized for design of bifunctional catalytic systems with improved performance.
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Affiliation(s)
- Kihyun Shin
- Department of Materials Science and Engineering, KAIST, 291-Daehak-ro, Yuseong-gu, Daejeon, 34141 Korea
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Farias MJS, Cheuquepán W, Tanaka AA, Feliu JM. Nonuniform Synergistic Effect of Sn and Ru in Site-Specific Catalytic Activity of Pt at Bimetallic Surfaces toward CO Electro-oxidation. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00257] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manuel J. S. Farias
- Departamento
de Química, Universidade Federal do Maranhão, Avenida dos Portugueses, 1966, CEP 65080-805 São Luís, Maranhão, Brazil
| | - William Cheuquepán
- Instituto
de Electroquímica, Universidad de Alicante, Ap. 99, E-03080 Alicante, Spain
| | - Auro A. Tanaka
- Departamento
de Química, Universidade Federal do Maranhão, Avenida dos Portugueses, 1966, CEP 65080-805 São Luís, Maranhão, Brazil
| | - Juan M. Feliu
- Instituto
de Electroquímica, Universidad de Alicante, Ap. 99, E-03080 Alicante, Spain
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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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