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Pushpalatha N, Abraham EV, Saravanan G. Pt–Cu nanoalloy catalysts: compositional dependence and selectivity for direct electrochemical oxidation of formic acid. NEW J CHEM 2022. [DOI: 10.1039/d2nj01871c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A PtCu3 nanoalloy catalyst showed much enhanced catalytic activity for the direct electrochemical oxidation of formic acid compared to a commercial platinum catalyst.
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Affiliation(s)
- Nataraj Pushpalatha
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), CSIR, Madras Complex, Taramani, Chennai, 600 113, India
| | - Elezabeth V. Abraham
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), CSIR, Madras Complex, Taramani, Chennai, 600 113, India
| | - Govindachetty Saravanan
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), CSIR, Madras Complex, Taramani, Chennai, 600 113, India
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GUNJI T. Preparation of Ordered Intermetallic Compounds and Their Application in Electrocatalytic Reactions. ELECTROCHEMISTRY 2021. [DOI: 10.5796/electrochemistry.21-00081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Takao GUNJI
- Department of Material and Life Chemistry, Kanagawa University
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3
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Ando F, Gunji T, Tanabe T, Fukano I, Abruña HD, Wu J, Ohsaka T, Matsumoto F. Enhancement of the Oxygen Reduction Reaction Activity of Pt by Tuning Its d-Band Center via Transition Metal Oxide Support Interactions. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01868] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fuma Ando
- Department of Materials and Life Chemistry, Kanagawa University, 3-27-1, Rokkakubashi, Kanagawa-ku, Yokohama, Kanagawa 221-8686, Japan
| | - Takao Gunji
- Department of Materials and Life Chemistry, Kanagawa University, 3-27-1, Rokkakubashi, Kanagawa-ku, Yokohama, Kanagawa 221-8686, Japan
| | - Toyokazu Tanabe
- Department of Materials Science and Engineering, National Defense Academy, 1-10-20, Hashirimizu, Yokosuka 239-8686, Japan
| | - Isao Fukano
- Department of Materials and Life Chemistry, Kanagawa University, 3-27-1, Rokkakubashi, Kanagawa-ku, Yokohama, Kanagawa 221-8686, Japan
| | - Héctor D. Abruña
- Department of Chemistry and Chemical Biology, Cornell University, Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
| | - Jianfei Wu
- Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, 266101 Qingdao, China
| | - Takeo Ohsaka
- Research Institute for Engineering, Kanagawa University, 3-27-1, Rokkakubashi, Kanagawa-ku, Yokohama, Kanagawa 221-8686, Japan
| | - Futoshi Matsumoto
- Department of Materials and Life Chemistry, Kanagawa University, 3-27-1, Rokkakubashi, Kanagawa-ku, Yokohama, Kanagawa 221-8686, Japan
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Gunji T, Wakabayashi RH, Noh SH, Han B, Matsumoto F, DiSalvo FJ, Abruña HD. The effect of alloying of transition metals (M = Fe, Co, Ni) with palladium catalysts on the electrocatalytic activity for the oxygen reduction reaction in alkaline media. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.06.051] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Paßens M, Caciuc V, Atodiresei N, Moors M, Blügel S, Waser R, Karthäuser S. Tuning the surface electronic structure of a Pt3Ti(111) electro catalyst. NANOSCALE 2016; 8:13924-33. [PMID: 26865393 DOI: 10.1039/c5nr08420b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Increasing the efficiency and stability of bimetallic electro catalysts is particularly important for future clean energy technologies. However, the relationship between the surface termination of these alloys and their catalytic activity is poorly understood. Therefore, we report on fundamental UHV-SPM, LEED, and DFT calculations of the Pt3Ti(111) single crystal surface. Using voltage dependent imaging the surface termination of Pt3Ti(111) was studied with atomic resolution. Combining these images with simulated STM maps based on ab initio DFT calculations allowed us to identify the three upper layers of the Pt3Ti(111) single crystal and their influence upon the surface electronic structure. Our results show that small changes in the composition of the second and third atomic layer are of significant influence upon the surface electronic structure of the Pt3Ti electro catalyst. Furthermore, we provide relevant insights into the dependence of the surface termination on the preparation conditions.
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Affiliation(s)
- M Paßens
- Peter Grünberg Institut (PGI-7) and JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany.
| | - V Caciuc
- Peter Grünberg Institut (PGI-1) and Institute for Advanced Simulation (IAS-1), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - N Atodiresei
- Peter Grünberg Institut (PGI-1) and Institute for Advanced Simulation (IAS-1), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - M Moors
- Peter Grünberg Institut (PGI-7) and JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany.
| | - S Blügel
- Peter Grünberg Institut (PGI-1) and Institute for Advanced Simulation (IAS-1), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - R Waser
- Peter Grünberg Institut (PGI-7) and JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany. and IWE2 and JARA-FIT, RWTH Aachen University, 52056 Aachen, Germany
| | - S Karthäuser
- Peter Grünberg Institut (PGI-7) and JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany.
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