1
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Fan C, Dou S, Zhan X, Li S, Wang Q, Li B. Molten-Salt Electrochemical-Assisted Synthesis of the CeO 2-O V@GC Composite-Supported Pt Clusters with a Pt-O-Ce Structure for the Oxygen Reduction Reaction. NANO LETTERS 2024; 24:6957-6964. [PMID: 38805355 DOI: 10.1021/acs.nanolett.4c01226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Highly active and robust Pt-based electrocatalysts for an oxygen reduction reaction (ORR) are of crucial significance for the development of proton exchange membrane fuel cells (PEMFCs). Herein, the high-loading and well-dispersive Pt clusters on graphitic carbon-supported CeO2 with abundant oxygen vacancies (PtAC/CeO2-OV@GC) were successfully fabricated by a molten-salt electrochemical-assisted method. The bonding of Pt with the highly electronegative O induces charge redistribution through the Pt-O-Ce structure, thus reducing the adsorption energies of oxygen-containing species. Such a PtAC/CeO2-OV@GC electrocatalyst exhibits a greatly enhanced ORR performance with a mass activity of 0.41 ± 0.02 A·mg-1Pt at 0.9 V versus a reversible hydrogen electrode, which is 2.7 times the value of a commercial Pt/C catalyst and shows negligible activity decay after 20000 cycles of accelerated degradation tests. It is anticipated that this work will provide enlightening guidance on the controllable synthesis and rational design of high-performance Pt-based electrocatalysts for PEMFCs.
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Affiliation(s)
- Chenming Fan
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Shixue Dou
- Institute of Energy Materials Science, University of Shanghai for Science and Technology, Shanghai 200093, People's Republic of China
| | - Xiaoqiang Zhan
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo 315211, People's Republic of China
| | - Shenggang Li
- CAS Key Laboratory of Lowcarbon Science and Technology, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, People's Republic of China
| | - Qiang Wang
- 2020 X-Lab, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
| | - Bing Li
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China
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2
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Song KT, Zagalskaya A, Schott CM, Schneider PM, Garlyyev B, Alexandrov V, Bandarenka AS. Influence of Alkali Metal Cations on the Oxygen Reduction Activity of Pt 5Y and Pt 5Gd Alloys. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2024; 128:4969-4977. [PMID: 38567375 PMCID: PMC10983829 DOI: 10.1021/acs.jpcc.4c00531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/28/2024] [Accepted: 02/28/2024] [Indexed: 04/04/2024]
Abstract
Electrolyte species can significantly influence the electrocatalytic performance. In this work, we investigate the impact of alkali metal cations on the oxygen reduction reaction (ORR) on active Pt5Gd and Pt5Y polycrystalline electrodes. Due to the strain effects, Pt alloys exhibit a higher kinetic current density of ORR than pure Pt electrodes in acidic media. In alkaline solutions, the kinetic current density of ORR for Pt alloys decreases linearly with the decreasing hydration energy in the order of Li+ > Na+ > K+ > Rb+ > Cs+, whereas Pt shows the opposite trend. To gain further insights into these experimental results, we conduct complementary density functional theory calculations considering the effects of both electrode surface strain and electrolyte chemistry. The computational results reveal that the different trends in the ORR activity in alkaline media can be explained by the change in the adsorption energy of reaction intermediates with applied surface strain in the presence of alkali metal cations. Our findings provide important insights into the effects of the electrolyte and the strain conditions on the electrocatalytic performance and thus offer valuable guidelines for optimizing Pt-based electrocatalysts.
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Affiliation(s)
- Kun-Ting Song
- Physik-Department
ECS, Technische Universität München, James-Franck-Str. 1, Garching D-85748, Germany
| | - Alexandra Zagalskaya
- Department
of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
- Quantum
Simulations Group, Materials Science Division, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
| | - Christian M. Schott
- Physik-Department
ECS, Technische Universität München, James-Franck-Str. 1, Garching D-85748, Germany
| | - Peter M. Schneider
- Physik-Department
ECS, Technische Universität München, James-Franck-Str. 1, Garching D-85748, Germany
| | - Batyr Garlyyev
- Physik-Department
ECS, Technische Universität München, James-Franck-Str. 1, Garching D-85748, Germany
| | - Vitaly Alexandrov
- Department
of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
- Nebraska
Center for Materials and Nanoscience, University
of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Aliaksandr S. Bandarenka
- Physik-Department
ECS, Technische Universität München, James-Franck-Str. 1, Garching D-85748, Germany
- Catalysis
Research Center TUM, Ernst-Otto-Fischer-Straße 1, Garching
bei München 85748, Germany
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3
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Lin F, Li M, Zeng L, Luo M, Guo S. Intermetallic Nanocrystals for Fuel-Cells-Based Electrocatalysis. Chem Rev 2023; 123:12507-12593. [PMID: 37910391 DOI: 10.1021/acs.chemrev.3c00382] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Electrocatalysis underpins the renewable electrochemical conversions for sustainability, which further replies on metallic nanocrystals as vital electrocatalysts. Intermetallic nanocrystals have been known to show distinct properties compared to their disordered counterparts, and been long explored for functional improvements. Tremendous progresses have been made in the past few years, with notable trend of more precise engineering down to an atomic level and the investigation transferring into more practical membrane electrode assembly (MEA), which motivates this timely review. After addressing the basic thermodynamic and kinetic fundamentals, we discuss classic and latest synthetic strategies that enable not only the formation of intermetallic phase but also the rational control of other catalysis-determinant structural parameters, such as size and morphology. We also demonstrate the emerging intermetallic nanomaterials for potentially further advancement in energy electrocatalysis. Then, we discuss the state-of-the-art characterizations and representative intermetallic electrocatalysts with emphasis on oxygen reduction reaction evaluated in a MEA setup. We summarize this review by laying out existing challenges and offering perspective on future research directions toward practicing intermetallic electrocatalysts for energy conversions.
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Affiliation(s)
- Fangxu Lin
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
- Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Menggang Li
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Lingyou Zeng
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Mingchuan Luo
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Shaojun Guo
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
- Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
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4
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Fan C, Li G, Gu J, Wang Q, Li S, Li B. Molten-Salt Electrochemical Deoxidation Synthesis of Platinum-Neodymium Nanoalloy Catalysts for Oxygen Reduction Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300110. [PMID: 37282800 DOI: 10.1002/smll.202300110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 05/14/2023] [Indexed: 06/08/2023]
Abstract
Platinum-rare earth metal (Pt-RE) nanoalloys are regarded as a potential high performance oxygen reduction reaction (ORR) catalyst. However, wet chemical synthesis of the nanoalloys is a crucial challenge because of the extremely high oxygen affinity of RE elements and the significantly different standard reduction potentials between Pt and RE. Here, this paper presents a molten-salt electrochemical synthetic strategy for the compositional-controlled preparation of platinum-neodymium (Pt-Nd) nanoalloy catalysts. Carbon-supported platinum-neodymium (Ptx Nd/C) nanoalloys, with distinct compositions of Pt5 Nd and Pt2 Nd, are obtained through molten-salt electrochemical deoxidation of platinum and neodymium oxide (Pt-Nd2 O3 ) precursors supported on carbon. The Ptx Nd/C nanoalloys, especially the Pt5 Nd/C exhibit a mass activity of 0.40 A mg-1 Pt and a specific activity of 1.41 mA cm-2 Pt at 0.9 V versus RHE, which are 3.1 and 7.1 times higher, respectively, than that of commercial Pt/C catalyst. More significantly, the Pt5 Nd/C catalyst is remarkably stable after undergoing 20 000 accelerated durability cycles. Furthermore, the density-functional-theory (DFT) calculations confirm that the ORR catalytic performance of Ptx Nd/C nanoalloys is enhanced by compressive strain effect of Pt overlayer, causing a suitable weakened binding energies of O*Δ E O ∗ $\Delta {E}_{{{\rm{O}}}^*}$ andΔ E OH ∗ $\Delta {E}_{{\rm{OH}}^*}$ .
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Affiliation(s)
- Chenming Fan
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Guomin Li
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Jingjiu Gu
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Qiang Wang
- 2020 X-Lab, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Shenggang Li
- CAS Key Laboratory of Lowcarbon Science and Technology, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, P. R. China
| | - Bing Li
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
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5
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Das A, Das S, Pathak B. Importance of Adatom on Pure Iron Catalyst Towards Electrocatalytic N 2 Reduction Reaction. Chem Asian J 2023; 18:e202300075. [PMID: 36908220 DOI: 10.1002/asia.202300075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/11/2023] [Accepted: 03/12/2023] [Indexed: 03/14/2023]
Abstract
The Haber-Bosch process using Fe-based catalysts is still the predominant technique for ammonia production despite tough reaction conditions and high energy consumption. In the present work, we have investigated iron adatom on the (110) surface of pure iron catalyst towards the electrocatalytic N2 reduction reaction (NRR) activity using density function theory (DFT) calculations. We demonstrate that the presence of adatom over the iron catalyst favours the NRR via alternating associative mechanistic pathway through a barrierless rate determining step (*NNH formation). Besides, the adatom-based catalyst requires lower working potential than the previously reported Fe(110) surface and Fe-nanocluster based catalysts. These findings may open a scope in terms of scrutinizing the atomicity effects over catalyst surface for various catalytic reactions.
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Affiliation(s)
- Arunendu Das
- Department of Chemistry, Indian Institute of Technology Indore, Indore, 453552, India
| | - Sandeep Das
- Department of Chemistry, Indian Institute of Technology Indore, Indore, 453552, India
| | - Biswarup Pathak
- Department of Chemistry, Indian Institute of Technology Indore, Indore, 453552, India
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6
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Tetteh EB, Gyan-Barimah C, Lee HY, Kang TH, Kang S, Ringe S, Yu JS. Strained Pt(221) Facet in a PtCo@Pt-Rich Catalyst Boosts Oxygen Reduction and Hydrogen Evolution Activity. ACS APPLIED MATERIALS & INTERFACES 2022; 14:25246-25256. [PMID: 35609281 DOI: 10.1021/acsami.2c00398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Over the last years, the development of highly active and durable Pt-based electrocatalysts has been identified as the main target for a large-scale industrial application of fuel cells. In this work, we make a significant step ahead in this direction by preparing a high-performance electrocatalyst and suggesting new structure-activity design concepts which could shape the future of oxygen reduction reaction (ORR) catalyst design. For this, we present a new one-dimensional nanowire catalyst consisting of a L10 ordered intermetallic PtCo alloy core and compressively strained high-index facets in the Pt-rich shell. We find the nanoscale PtCo catalyst to provide an excellent turnover for the ORR and hydrogen evolution reaction (HER), which we explain from high-resolution transmission electron microscopy and density functional theory calculations to be due to the high ratio of Pt(221) facets. These facets include highly active ORR and HER sites surprisingly on the terraces which are activated by a combination of sub-surface Co-induced high Miller index-related strain and oxygen coverage on the step sites. The low dimensionality of the catalyst provides a cost-efficient use of Pt. In addition, the high catalytic activity and durability are found during both half-cell and proton exchange membrane fuel cell (PEMFC) operations for both ORR and HER. We believe the revealed design concepts for generating active sites on the Pt-based catalyst can open up a new pathway toward the development of high-performance cathode catalysts for PEMFCs and other catalytic systems.
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Affiliation(s)
- Emmanuel Batsa Tetteh
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Republic of Korea
- Analytical Chemistry─Center for Electrochemical Sciences (CES), Faculty for Chemistry and Biochemistry, Ruhr University Bochum, Bochum 44780, Germany
| | - Caleb Gyan-Barimah
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Republic of Korea
| | - Ha-Young Lee
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Republic of Korea
| | - Tong-Hyun Kang
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Republic of Korea
| | - Seonghyeon Kang
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Republic of Korea
| | - Stefan Ringe
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Republic of Korea
- Department of Chemistry, Korea University, Seoul 02841, Republic of Korea
| | - Jong-Sung Yu
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Republic of Korea
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7
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Hou J, Wang Y, Wan X, Chen W, Wang X, Yuan Z, Wei Y, Hu C. Stress regulation of the oxygen reduction reaction on the Pt (100) surface using first principles calculations. CHEM LETT 2022. [DOI: 10.1246/cl.210786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jincheng Hou
- School of Machinery and Communications, Southwest Forestry University, Kunming, 650224, China
| | - Yuan Wang
- School of Machinery and Communications, Southwest Forestry University, Kunming, 650224, China
| | - Xiangming Wan
- City College, Kunming University of Science and Technology, Kunming, 650093, China
| | - Wengang Chen
- School of Machinery and Communications, Southwest Forestry University, Kunming, 650224, China
| | - Xiao Wang
- City College, Kunming University of Science and Technology, Kunming, 650093, China
| | - Zhentao Yuan
- City College, Kunming University of Science and Technology, Kunming, 650093, China
| | - Yan Wei
- Kunming Institute of Precious Metals, Kunming, State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, 650106, China
| | - Changyi Hu
- Kunming Institute of Precious Metals, Kunming, State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, 650106, China
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8
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Zhang X, Zhang Q, Cui J, Yan J, Liu J, Wu Y. New insights into the key bifunctional role of sulfur in Fe-N-C single-atom catalysts for ORR/OER. NANOSCALE 2022; 14:3212-3223. [PMID: 35147142 DOI: 10.1039/d1nr07851h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Sulfur-doping of non-noble metal Fe-N-C single-atom catalysts (SACs) shows a key bifunctional role in promoting ORR and OER activity. The controversial claims about the enhanced ORR activity and the ambiguity of the OER activity brought about by S-doping demand in-depth investigation. Here, systematic theoretical investigation was carried out. Unlike previously believed, coordinative S-doping gives rise to a precisely regulated OOH* stabilization effect, which is revealed to be the origin of the bifunctional ORR/OER activity. The fine regulation is reflected in two aspects: (1) Compared with other intermediates, the regulation of OOH* adsorption is more obvious. (2) More sulfur-doping leads to excessive strong or weak stabilization, which is not conducive to ORR/OER. The single S doping elevates the charge density and opens the metallic spin channels of Fe-N3|S, moves the d-band center towards the Fermi level, all contributing to moderate OOH* stabilization. It is hoped that these results will promote the development of heteroatom-doped bifunctional SACs.
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Affiliation(s)
- Xiaofei Zhang
- Institute of Industry & Equipment Technology, Anhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment, Hefei University of Technology, Hefei 230009, China.
| | - Qi Zhang
- Institute of Industry & Equipment Technology, Anhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment, Hefei University of Technology, Hefei 230009, China.
| | - Jiewu Cui
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China
| | - Jian Yan
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China
| | - Jiaqin Liu
- Institute of Industry & Equipment Technology, Anhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment, Hefei University of Technology, Hefei 230009, China.
| | - Yucheng Wu
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China
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9
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Lu Y, Zhang H, Wang Y, Chen Z. First principles study on the oxygen reduction reaction of Ir@Pt core-shell structure. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2021.111356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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10
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Das A, Mandal SC, Nair AS, Pathak B. Computational Screening of First-Row Transition-Metal Based Alloy Catalysts-Ligand Induced N 2 Reduction Reaction Selectivity. ACS PHYSICAL CHEMISTRY AU 2021; 2:125-135. [PMID: 36855504 PMCID: PMC9718324 DOI: 10.1021/acsphyschemau.1c00021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Large-scale ammonia production through sustainable strategies from naturally abundant N2 under ambient conditions represents a major challenge from a future perspective. Ammonia is one of the promising carbon-free alternative energy carriers. The high energy required for N≡N bond dissociation during the Haber-Bosch process demands extreme reaction conditions. This problem could be circumvented by tuning Fe catalyst composition with the help of an induced ligand effect on the surface. In this work, we utilized density functional theory calculations on the Fe(110) surface alloyed with first-row transition-metal (TM) series (Fe-TM) to understand the catalytic activity that facilitates the electrochemical nitrogen reduction reaction (NRR). We also calculated the selectivity against the competitive hydrogen evolution reaction (HER) under electrochemical conditions. The calculated results are compared with those from earlier reports on the periodic Fe(110) and Fe(111) surfaces, and also on the (110) surface of the Fe85 nanocluster. Surface alloying with late TMs (Co, Ni, Cu) shows an improved NRR activity, whereas the low exchange current density observed for Fe-Co indicates less HER activity among them. Considering various governing factors, Fe-based alloys with Co (Fe-Co) showed enhanced overall performance compared to the periodic surface as well as other pure iron-based structures previously reported. Therefore, the iron-alloy based structured catalysts may also provide more opportunities in the future for enhancing NRR performance via electrochemical reduction pathways.
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Affiliation(s)
- Arunendu Das
- Department
of Chemistry, Indian Institute of Technology
Indore, Indore, 453552, India
| | - Shyama Charan Mandal
- Department
of Chemistry, Indian Institute of Technology
Indore, Indore, 453552, India
| | - Akhil S. Nair
- Department
of Chemistry, Indian Institute of Technology
Indore, Indore, 453552, India
| | - Biswarup Pathak
- Department
of Chemistry, Indian Institute of Technology
Indore, Indore, 453552, India,
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11
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Surface unsaturated WO x activating PtNi alloy nanowires for oxygen reduction reaction. J Colloid Interface Sci 2021; 607:1928-1935. [PMID: 34695741 DOI: 10.1016/j.jcis.2021.10.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/26/2021] [Accepted: 10/03/2021] [Indexed: 10/20/2022]
Abstract
PtNi alloy nanoparticles display promising catalytic activity for oxygen reduction reaction (ORR), while the Ostwald ripening of particles and the dissolution/migration of surface atoms greatly affect its stability thus restricting the application. Herein, the WOx-surface modified PtNi alloy nanowires (WOx-PtNi NWs) exhibiting enhanced ORR catalytic property is reported, which has high aspect ratio with the diameter of only 2 ∼ 3 nm. It is found that the WOx-PtNi NWs shows a volcano relationship between the ORR activity and the content of WOx. The WOx-(0.25)-PtNi NWs has the best performance among all the synthesized catalysts. Its mass activity (0.85 A mg-1Pt) is reduced by only 23.89% after 30k cycles durability test, which is much more stable than that of PtNi NWs (0.33 A mg-1Pt, 45.94%) and Pt/C (0.14 A mg-1Pt, 57.79%). Hence this work achieves an effective regulation of the ORR activity for PtNi alloy NWs by the synergistic effect of WOx on Pt.
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12
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Martínez-Alonso C, Guevara-Vela JM, LLorca J. The effect of elastic strains on the adsorption energy of H, O, and OH in transition metals. Phys Chem Chem Phys 2021; 23:21295-21306. [PMID: 34543371 DOI: 10.1039/d1cp03312c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The influence of elastic strains on the adsorption of H, O, and OH on the (111) surfaces of 8 fcc (Ni, Cu, Pd, Ag, Pt, Au, Rh, Ir) and on the (0001) surfaces of 3 hcp (Co, Zn, Cd) transition metals was analyzed by means of density functional theory calculations. To this end, surface slabs were subjected to different strain states (uniaxial, biaxial, shear, and a combination of them) up to strains dictated by the mechanical stability limits indicated by phonon calculations. It was found that the adsorption energy followed the predictions of the d-band theory but - surprisingly - the variations in the adsorption energy only depended on the area of the adsorption hole and not on the particular elastic strain tensor applied to achieve this area. The analysis of the electronic structure showed that the applied strains did not modify the shape of the Projected Density of States (PDOS) of the d-orbitals of the transition metals but only led to a shift in the energy levels. Moreover, the presence of the adsorbates on the surfaces led to negligible changes in the PDOS. Thus, the adsorption energies were a function of the Fermi energy which in turn was associated with the change of the area of the adsorption through a general linear law that was valid for all metals. The information in this paper allows the immediate and accurate estimation of the effect of any elastic strain on the adsorption energies of H, O, and OH in 11 transition metals with more than half-filled d-orbitals.
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Affiliation(s)
- Carmen Martínez-Alonso
- IMDEA Materials Institute, C/Eric Kandel 2, 28906 - Getafe, Madrid, Spain. .,Department of Inorganic Chemistry, Complutense University of Madrid, 28040 Madrid, Spain
| | - José Manuel Guevara-Vela
- Department of Materials Science, Polytechnic University of Madrid, E. T. S. de Ingenieros de Caminos, 28040 Madrid, Spain
| | - Javier LLorca
- IMDEA Materials Institute, C/Eric Kandel 2, 28906 - Getafe, Madrid, Spain. .,Department of Materials Science, Polytechnic University of Madrid, E. T. S. de Ingenieros de Caminos, 28040 Madrid, Spain
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13
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Tuo Y, Lu Q, Chen C, Liu T, Pan Y, Zhou Y, Zhang J. The facile synthesis of core-shell PtCu nanoparticles with superior electrocatalytic activity and stability in the hydrogen evolution reaction. RSC Adv 2021; 11:26326-26335. [PMID: 35479446 PMCID: PMC9037382 DOI: 10.1039/d1ra04001d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 07/18/2021] [Indexed: 11/21/2022] Open
Abstract
Pt is the most efficient electrocatalyst for the hydrogen evolution reaction (HER); however, it is a high cost material with scarce resources. In order to balance performance and cost in a Pt-based electrocatalyst, we prepared a series of PtCu bimetallic nanoparticles (NPs) with different Pt/Cu ratios through a facile synthetic strategy to optimize the utilization of Pt atoms. PtCu NPs demonstrate a uniform particle size distribution with exposed (111) facets that are highly active for the HER. A synergetic effect between Pt and Cu leads to electron transfer from Pt to Cu, which is favorable for the desorption of H intermediates. Therefore, the as-synthesized carbon black (CB) supported PtCu catalysts showed enhanced catalytic performance in the HER compared with a commercial Pt/C electrocatalyst. Typically, Pt1Cu3/CB showed excellent HER performance, with only 10 mV (acid) and 17 mV (alkaline) overpotentials required to achieve a current density of 10 mA cm-2. This is because the Pt1Cu3 NPs, with a small average particle size (7.70 ± 0.04 nm) and Pt-Cu core and Pt-rich shell structure, display the highest electrochemically active surface area (24.7 m2 gPt -1) out of the as-synthesized PtCu/CB samples. Furthermore, Pt1Cu3/CB showed good electrocatalytic stability, with current density drops of only 9.3% and 12.8% in acidic solution after 24 h and in alkaline solution after 9 h, respectively. This study may shed new light on the rational design of active and durable hydrogen evolution catalysts with low amounts of Pt.
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Affiliation(s)
- Yongxiao Tuo
- School of Materials Science and Engineering, China University of Petroleum (East China) Qingdao 266580 China
| | - Qing Lu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China) Qingdao 266580 China
| | - Chen Chen
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China) Qingdao 266580 China
| | - Tenglong Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China) Qingdao 266580 China
| | - Yuan Pan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China) Qingdao 266580 China
| | - Yan Zhou
- School of Materials Science and Engineering, China University of Petroleum (East China) Qingdao 266580 China
| | - Jun Zhang
- School of Materials Science and Engineering, China University of Petroleum (East China) Qingdao 266580 China .,State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China) Qingdao 266580 China
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14
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Choi S, Chung M, Kim D, Kim S, Yun K, Cha W, Harder R, Kawaguchi T, Liu Y, Ulvestad A, You H, Song MK, Kim H. In Situ Strain Evolution on Pt Nanoparticles during Hydrogen Peroxide Decomposition. NANO LETTERS 2020; 20:8541-8548. [PMID: 33174748 DOI: 10.1021/acs.nanolett.0c03005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Fundamental understanding of structural changes during catalytic reactions is crucial to understanding the underlying mechanisms and optimizing efficiencies. Surface energy and related catalytic mechanisms are widely studied. However, the catalyst lattice deformation induced by catalytic processes is not well understood. Here, we study the strain in an individual platinum (Pt) nanoparticle (NP) using Bragg coherent diffraction imaging under in situ oxidation and reduction reactions. When Pt NPs are exposed to H2O2, a typical oxidizer and an intermediate during the oxygen reduction reaction process, alternating overall strain distribution near the surface and inside the NP is observed at the (111) Bragg reflection. In contrast, relatively insignificant changes appear in the (200) reflection. Density functional theory calculations are employed to rationalize the anisotropic lattice strain in terms of induced stress by H2O2 adsorption and decomposition on the Pt NP surface. Our study provides deeper insight into the activity-structure relationship in this system.
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Affiliation(s)
- Sungwook Choi
- Department of Physics, Sogang University, Seoul 04107, Korea
| | - Myungwoo Chung
- Department of Physics, Sogang University, Seoul 04107, Korea
| | - Dongjin Kim
- Department of Physics, Sogang University, Seoul 04107, Korea
| | - Sungwon Kim
- Department of Physics, Sogang University, Seoul 04107, Korea
| | - Kyuseok Yun
- Department of Physics, Sogang University, Seoul 04107, Korea
| | - Wonsuk Cha
- Advanced Photon Source, Argonne National Laboratory, Argonne Illinois 60439, United States
| | - Ross Harder
- Advanced Photon Source, Argonne National Laboratory, Argonne Illinois 60439, United States
| | - Tomoya Kawaguchi
- Materials Science Division, Argonne National Laboratory, Argonne Illinois 60439, United States
| | - Yihua Liu
- Materials Science Division, Argonne National Laboratory, Argonne Illinois 60439, United States
| | - Andrew Ulvestad
- Materials Science Division, Argonne National Laboratory, Argonne Illinois 60439, United States
| | - Hoydoo You
- Materials Science Division, Argonne National Laboratory, Argonne Illinois 60439, United States
| | - Mee Kyung Song
- Center for Nano Materials, Sogang University, Seoul 04107, Korea
| | - Hyunjung Kim
- Department of Physics, Sogang University, Seoul 04107, Korea
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15
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Zhang J, Zhang H, Cheng MJ, Lu Q. Tailoring the Electrochemical Production of H 2 O 2 : Strategies for the Rational Design of High-Performance Electrocatalysts. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1902845. [PMID: 31539208 DOI: 10.1002/smll.201902845] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/30/2019] [Indexed: 06/10/2023]
Abstract
The production of H2 O2 via the electrochemical oxygen reduction reaction (ORR) presents an attractive decentralized alternative to the current industry-dominant anthraquinone process. However, in order to achieve viable commercialization of this process, a state-of-the-art electrocatalyst exhibiting high activity, selectivity, and long-term stability is imperative for industrial applications. Herein, an in-depth discussion on the current frontiers in electrocatalyst design is provided, emphasizing the influences of electronic and geometric effects, surface structure, and the effects of heteroatom functionalization on the catalytic performance of commonly studied materials (metals, alloys, carbons). The limitations on the performance of the current catalyst materials are also discussed, together with alternative strategies to overcome the impediments. Finally, directions of future research efforts for the discovery of next-generation ORR electrocatalysts are highlighted.
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Affiliation(s)
- Jiayi Zhang
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Haochen Zhang
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Mu-Jeng Cheng
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan
| | - Qi Lu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
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16
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Chen J, Cao J, Zhou J, Wang W, Zhang Y, Liu J, Liu X. A computational evaluation of MoS2-based materials for the electrocatalytic oxygen reduction reaction. NEW J CHEM 2020. [DOI: 10.1039/d0nj02621b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The potential of modified MoS2-based materials in oxygen reduction reaction (ORR) was evaluated by DFT calculations.
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Affiliation(s)
- Junyu Chen
- School of Astronautics
- Harbin Institute of Technology
- Harbin
- China
| | - Jiamu Cao
- School of Astronautics
- Harbin Institute of Technology
- Harbin
- China
- Key Laboratory of Micro-systems and Micro-Structures Manufacturing
| | - Jing Zhou
- School of Astronautics
- Harbin Institute of Technology
- Harbin
- China
| | - Weiqi Wang
- School of Astronautics
- Harbin Institute of Technology
- Harbin
- China
| | - Yufeng Zhang
- School of Astronautics
- Harbin Institute of Technology
- Harbin
- China
- Key Laboratory of Micro-systems and Micro-Structures Manufacturing
| | - Junfeng Liu
- School of Astronautics
- Harbin Institute of Technology
- Harbin
- China
| | - Xiaowei Liu
- School of Astronautics
- Harbin Institute of Technology
- Harbin
- China
- Key Laboratory of Micro-systems and Micro-Structures Manufacturing
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17
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Zhu J, Jiang X, Yang Y, Chen Q, Xue XX, Chen K, Feng Y. Synergy of tellurium and defects in control of activity of phosphorene for oxygen evolution and reduction reactions. Phys Chem Chem Phys 2019; 21:22939-22946. [PMID: 31598612 DOI: 10.1039/c9cp04164h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Developing low-cost and metal-free electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is desirable for renewable energy technologies. Recent experiments show that tellurium (Te) atoms can be effectively doped into black phosphorus (BP) nanosheets, and they greatly improve its OER catalytic performance. However, the specific active sites and microscopic configurations in the atomic-scale are still ambiguous. Here, we show that the doped Te atoms prefer to bond with each other to form clusters in phosphorene and they can be further stabilized by various intrinsic defects (Stone-Wales, single vacancy defects and zigzag nanoribbon). Benefiting from the reduced binding strength of O*, Te dopants and intrinsic defects synergistically boost the catalytic activity of phosphorene. The best OER catalytic activity could be realized in the cluster SW2-Te1p (Stone-Wales defect decorated by one Te atom). For ORR, the cluster Pri-Te3p (pristine phosphorene decorated by three Te atoms) exhibits optimal catalytic activity. Calculated ORR/OER potential gaps indicate that the SW2-Te3p cluster most likely acts as the efficient bifunctional catalytic site for both ORR and OER.
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Affiliation(s)
- Junfu Zhu
- Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China.
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18
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Wang Q, Zhao ZL, Gu M. CO Gas Induced Phase Separation in PtPb@Pt Catalyst and Formation of Ultrathin Pb Nanosheets Probed by In Situ Transmission Electron Microscopy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1903122. [PMID: 31441227 DOI: 10.1002/smll.201903122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/07/2019] [Indexed: 06/10/2023]
Abstract
PtPb@Pt catalysts are very useful and widely applied in various industrial reactions. Here, the phase stability of such catalysts is compared in both CO gas and vacuum conditions at elevated temperatures using aberration-corrected in situ transmission electron microscopy (TEM). A Pt aggregation process takes place affected by CO gas, which results in direct exposure of the PtPb core to CO. A phase separation process, in which Pb atoms are stripped off the original PtPb@Pt nanoparticles, is unambiguously identified in CO gas. At initial stages, the as nucleated Pb islands are amorphous. Once the ultrathin Pb islands reach ≈3.5 nm or higher, they suddenly became crystalline. The interaction between Pb and CO gas stabilizes the ultrathin Pb nanosheets, resulting in the formation of a large quantity of Pb nanosheets and Pb-depleted PtPb0.08 nanoparticles. In sharp contrast, when heated up in a vacuum, the PtPb@Pt catalyst remains intact. The results of this study shine light on the "toxic" effect of CO that results in failures of many Pt-based catalysts and discloses formation mechanism of ultrathin Pb nanosheets.
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Affiliation(s)
- Qi Wang
- Department of Materials Science and Engineering, Southern University of Science and Technology, and Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices, No. 1088 Xueyuan Blvd, Shenzhen, Guangdong, 518055, China
| | - Zhi Liang Zhao
- Department of Materials Science and Engineering, Southern University of Science and Technology, and Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices, No. 1088 Xueyuan Blvd, Shenzhen, Guangdong, 518055, China
| | - Meng Gu
- Department of Materials Science and Engineering, Southern University of Science and Technology, and Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices, No. 1088 Xueyuan Blvd, Shenzhen, Guangdong, 518055, China
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19
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Wang L, Zeng Z, Gao W, Maxson T, Raciti D, Giroux M, Pan X, Wang C, Greeley J. Tunable intrinsic strain in two-dimensional transition metal electrocatalysts. Science 2019; 363:870-874. [PMID: 30792302 DOI: 10.1126/science.aat8051] [Citation(s) in RCA: 209] [Impact Index Per Article: 41.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 09/12/2018] [Accepted: 01/23/2019] [Indexed: 12/17/2022]
Abstract
Tuning surface strain is a powerful strategy for tailoring the reactivity of metal catalysts. Traditionally, surface strain is imposed by external stress from a heterogeneous substrate, but the effect is often obscured by interfacial reconstructions and nanocatalyst geometries. Here, we report on a strategy to resolve these problems by exploiting intrinsic surface stresses in two-dimensional transition metal nanosheets. Density functional theory calculations indicate that attractive interactions between surface atoms lead to tensile surface stresses that exert a pressure on the order of 105 atmospheres on the surface atoms and impart up to 10% compressive strain, with the exact magnitude inversely proportional to the nanosheet thickness. Atomic-level control of thickness thus enables generation and fine-tuning of intrinsic strain to optimize catalytic reactivity, which was confirmed experimentally on Pd(110) nanosheets for the oxygen reduction and hydrogen evolution reactions, with activity enhancements that were more than an order of magnitude greater than those of their nanoparticle counterparts.
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Affiliation(s)
- Lei Wang
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Zhenhua Zeng
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN 47907, USA.
| | - Wenpei Gao
- Department of Chemical Engineering and Materials Science, University of California, Irvine, CA 92697, USA
| | - Tristan Maxson
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - David Raciti
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Michael Giroux
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Xiaoqing Pan
- Department of Chemical Engineering and Materials Science, University of California, Irvine, CA 92697, USA.,Department of Physics and Astronomy, University of California, Irvine, CA 92697, USA
| | - Chao Wang
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.
| | - Jeffrey Greeley
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN 47907, USA.
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20
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Sharma S, Zeng C, Peterson AA. Face-centered tetragonal (FCT) Fe and Co alloys of Pt as catalysts for the oxygen reduction reaction (ORR): A DFT study. J Chem Phys 2019; 150:041704. [PMID: 30709250 DOI: 10.1063/1.5049674] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Proton exchange membrane fuel cells (PEMFCs) are promising candidates for alternate energy conversion devices owing to their various advantages including high efficiency, reliability, and environmental friendliness. The performance of PEMFCs is fundamentally limited by the sluggish kinetics of the oxygen reduction reaction (ORR) at the cathode. Various studies have addressed myriads of Pt-based alloys as potential catalysts for ORR. However, most of these studies only focus on the cubic-structured Pt-based alloys which require further improvements especially in terms of stability and required loading. In this work, we perform first-principle density functional theory calculations to explore Fe and Co alloys of Pt in a different face centered tetragonal (L10) geometry as potential catalysts for ORR. The work focuses on understanding the reaction mechanism of ORR by both dissociative and associative mechanisms on L10-FePt/Pt(111) and L10-CoPt/Pt(111) surfaces. The binding pattern of each reaction intermediate is studied along with the complete reaction free energy landscape as a function of Pt overlayers. The L10-FePt/Pt(111) and L10-CoPt/Pt(111) surfaces show higher calculated surface activity for ORR as compared to the native fcc Pt(111) surface. The decrease in the required overpotential (η) for the alloys with respect to the unstrained Pt(111) surface is found to be in the range (0.04 V-0.25 V) assuming the dissociative mechanism and (0.02 V-0.10 V) assuming the associative mechanism, where the variation depends on the thickness of Pt overlayers. We further correlate the binding behavior of the reaction intermediates to the applied biaxial strain on the Pt(111) surface with the help of a mechanical eigenforce model. The eigenforce model gives a (semi-) quantitative prediction of the binding energies of the ORR intermediates under applied biaxial strain. The numerical values of the limiting potential (UL) obtained from the eigenforce model are found to be very close to ones obtained from electronic structure calculations (less than 0.1 V difference). The eigenforce model is further used to predict the ideal equi-biaxial strain range required on Pt(111) surfaces for optimum ORR activity.
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Affiliation(s)
- Shubham Sharma
- School of Engineering, Brown University, Providence, Rhode Island 02912, USA
| | - Cheng Zeng
- School of Engineering, Brown University, Providence, Rhode Island 02912, USA
| | - Andrew A Peterson
- School of Engineering, Brown University, Providence, Rhode Island 02912, USA
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21
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Lin JY, Xi C, Li Z, Feng Y, Wu DY, Dong CK, Yao P, Liu H, Du XW. Lattice-strained palladium nanoparticles as active catalysts for the oxygen reduction reaction. Chem Commun (Camb) 2019; 55:3121-3123. [DOI: 10.1039/c9cc00447e] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Compressive strain was successfully introduced into palladium nanoparticles by a novel pulsed laser ablation technology, leading to dramatic improvement of the catalytic performance in the oxygen reduction reaction.
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Affiliation(s)
- Jing-Yang Lin
- Institute of New-Energy Materials
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300350
- China
| | - Cong Xi
- Institute of New-Energy Materials
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300350
- China
| | - Zhe Li
- Institute of New-Energy Materials
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300350
- China
| | - Yi Feng
- Institute of New-Energy Materials
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300350
- China
| | - De-Yao Wu
- Institute of New-Energy Materials
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300350
- China
| | - Cun-Ku Dong
- Institute of New-Energy Materials
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300350
- China
| | - Pei Yao
- Institute of New-Energy Materials
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300350
- China
| | - Hui Liu
- Institute of New-Energy Materials
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300350
- China
| | - Xi-Wen Du
- Institute of New-Energy Materials
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300350
- China
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22
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Mahata A, Nair AS, Pathak B. Recent advancements in Pt-nanostructure-based electrocatalysts for the oxygen reduction reaction. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00895k] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A comprehensive evaluation of Pt-nanostructure-based electrocatalysts for the oxygen reduction reaction.
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Affiliation(s)
- Arup Mahata
- Discipline of Chemistry
- Indian Institute of Technology (IIT) Indore
- Indore
- India
| | - Akhil S. Nair
- Discipline of Chemistry
- Indian Institute of Technology (IIT) Indore
- Indore
- India
| | - Biswarup Pathak
- Discipline of Chemistry
- Indian Institute of Technology (IIT) Indore
- Indore
- India
- Discipline of Metallurgy Engineering and Materials Science
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23
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De Lile JR, Lee SY, Kim HJ, Pak C, Lee SG. First-principles study of the effect of compressive strain on oxygen adsorption in Pd/Ni/Cu-alloy-core@Pd/Ir-alloy-shell catalysts. NEW J CHEM 2019. [DOI: 10.1039/c9nj01705d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Through synergism between the ligand effect, the d-band center shift, and the surface alloying effect, the Pd3CuNi@PdIr catalyst exhibits the poorest dioxygen adsorption and, consequently, the best catalytic ORR performance.
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Affiliation(s)
- Jeffrey Roshan De Lile
- Department of Organic Material Science and Engineering
- Pusan National University 2
- Geumjeong-gu
- Republic of Korea
| | - So Young Lee
- Center for Hydrogen and Fuel Cell Research
- Korea Institute of Science and Technology
- Seongbuk-gu
- Republic of Korea
| | - Hyoung-Juhn Kim
- Center for Hydrogen and Fuel Cell Research
- Korea Institute of Science and Technology
- Seongbuk-gu
- Republic of Korea
| | - Chanho Pak
- Graduate Program of Energy Technology
- School of Integrated Technology
- Institute of Integrated Technology
- Gwangju Institute of Science and Technology
- Buk-gu
| | - Seung Geol Lee
- Department of Organic Material Science and Engineering
- Pusan National University 2
- Geumjeong-gu
- Republic of Korea
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24
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Liu M, Xin H, Wu Q. Unusual strain effect of a Pt-based L10 face-centered tetragonal core in core/shell nanoparticles for the oxygen reduction reaction. Phys Chem Chem Phys 2019; 21:6477-6484. [DOI: 10.1039/c8cp06756b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nanoparticles with a low-Pt content core and a few-layer thick Pt skin are attractive catalysts toward the oxygen reduction reaction (ORR) not only for their low cost, but also because their activity can be enhanced by judiciously choosing the core alloy.
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Affiliation(s)
- Mingjie Liu
- Center for Functional Nanomaterials
- Brookhaven National Laboratory
- Upton
- USA
| | - Huolin Xin
- Center for Functional Nanomaterials
- Brookhaven National Laboratory
- Upton
- USA
| | - Qin Wu
- Center for Functional Nanomaterials
- Brookhaven National Laboratory
- Upton
- USA
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25
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Zheng X, Li L, Li J, Wei Z. Intrinsic effects of strain on low-index surfaces of platinum: roles of the five 5d orbitals. Phys Chem Chem Phys 2019; 21:3242-3249. [DOI: 10.1039/c8cp07556e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The inconsistent change in five 5d orbitals on strained Pt low-index induces abnormal species adsorption behaviours.
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Affiliation(s)
- Xingqun Zheng
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- School of Chemistry and Chemical Engineering, Chongqing University
- Chongqing 400044
- P. R. China
| | - Li Li
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- School of Chemistry and Chemical Engineering, Chongqing University
- Chongqing 400044
- P. R. China
| | - Jing Li
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- School of Chemistry and Chemical Engineering, Chongqing University
- Chongqing 400044
- P. R. China
| | - Zidong Wei
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- School of Chemistry and Chemical Engineering, Chongqing University
- Chongqing 400044
- P. R. China
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26
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Xue T, Wu C, Ding X, Sun J. Dissociative adsorption of O2 on strained Pt(111). Phys Chem Chem Phys 2018; 20:17927-17933. [DOI: 10.1039/c8cp01966e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The adsorption and dissociation of O2 and the adsorption of O* adatoms over strained Pt(111) surfaces have been systematically studied using density functional theory calculations.
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Affiliation(s)
- Tiantian Xue
- Frontier Institute of Science and Technology
- State Key Laboratory for Mechanical Behavior of Materials
- Xi’an Jiaotong University
- Xi’an 710049
- People's Republic of China
| | - Chao Wu
- Frontier Institute of Science and Technology
- State Key Laboratory for Mechanical Behavior of Materials
- Xi’an Jiaotong University
- Xi’an 710049
- People's Republic of China
| | - Xiangdong Ding
- Frontier Institute of Science and Technology
- State Key Laboratory for Mechanical Behavior of Materials
- Xi’an Jiaotong University
- Xi’an 710049
- People's Republic of China
| | - Jun Sun
- Frontier Institute of Science and Technology
- State Key Laboratory for Mechanical Behavior of Materials
- Xi’an Jiaotong University
- Xi’an 710049
- People's Republic of China
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27
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Kaneko S, Myochi R, Takahashi S, Todoroki N, Wadayama T, Tanabe T. Ultrahigh Vacuum Synthesis of Strain-Controlled Model Pt(111)-Shell Layers: Surface Strain and Oxygen Reduction Reaction Activity. J Phys Chem Lett 2017; 8:5360-5365. [PMID: 29045146 DOI: 10.1021/acs.jpclett.7b02525] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, we perform ultrahigh vacuum (UHV) and arc-plasma synthesis of strain-controlled Pt(111) model shells on Pt-Co(111) layers with various atomic ratios of Pt/Co and an oxygen reduction reaction (ORR) activity enhancement trend against the surface strain induced by lattice mismatch between the Pt shell and Pt-Co alloy-core interface structures was observed. The results showed that the Pt(111)-shell with 2.0% compressive surface strain vs intrinsic Pt(111) lattice gave rise to a maximum activity enhancement, ca. 13-fold higher activity than that of clean Pt(111). This study clearly demonstrates that the UHV-synthesized, strain-controlled Pt shells furnish useful surface templates for electrocatalysis.
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Affiliation(s)
- Soma Kaneko
- Graduate School of Environmental Studies and ‡Graduate School of Engineering, Tohoku University , Sendai 980-8579, Japan
| | - Rikiya Myochi
- Graduate School of Environmental Studies and ‡Graduate School of Engineering, Tohoku University , Sendai 980-8579, Japan
| | - Shuntaro Takahashi
- Graduate School of Environmental Studies and ‡Graduate School of Engineering, Tohoku University , Sendai 980-8579, Japan
| | - Naoto Todoroki
- Graduate School of Environmental Studies and ‡Graduate School of Engineering, Tohoku University , Sendai 980-8579, Japan
| | - Toshimasa Wadayama
- Graduate School of Environmental Studies and ‡Graduate School of Engineering, Tohoku University , Sendai 980-8579, Japan
| | - Tadao Tanabe
- Graduate School of Environmental Studies and ‡Graduate School of Engineering, Tohoku University , Sendai 980-8579, Japan
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28
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Noh SH, Kwon C, Hwang J, Ohsaka T, Kim BJ, Kim TY, Yoon YG, Chen Z, Seo MH, Han B. Self-assembled nitrogen-doped fullerenes and their catalysis for fuel cell and rechargeable metal-air battery applications. NANOSCALE 2017; 9:7373-7379. [PMID: 28405666 DOI: 10.1039/c7nr00930e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, we report self-assembled nitrogen-doped fullerenes (N-fullerene) as non-precious catalysts, which are active for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), and thus applicable for energy conversion and storage devices such as fuel cells and metal-air battery systems. We screen the best N-fullerene catalyst at the nitrogen doping level of 10 at%, not at the previously known doping level of 5 or 20 at% for graphene. We identify that the compressive surface strain induced by doped nitrogen plays a key role in the fine-tuning of catalytic activity.
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Affiliation(s)
- Seung Hyo Noh
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
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29
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Wang H, An W. Promoting the oxygen reduction reaction with gold at step/edge sites of Ni@AuPt core–shell nanoparticles. Catal Sci Technol 2017. [DOI: 10.1039/c6cy02344d] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Presumably inert Au atoms localized at edge sites of Ni@AuPt core–shell nanoparticles effectively promote the electrocatalytic activity for oxygen reduction reaction.
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Affiliation(s)
- Hao Wang
- College of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- China
| | - Wei An
- College of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- China
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30
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Todoroki N, Watanabe H, Kondo T, Kaneko S, Wadayama T. Highly Enhanced Oxygen Reduction Reaction Activity and Electrochemical Stability of Pt/Ir(111) Bimetallic Surfaces. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.11.149] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Temmel SE, Fabbri E, Pergolesi D, Lippert T, Schmidt TJ. Investigating the Role of Strain toward the Oxygen Reduction Activity on Model Thin Film Pt Catalysts. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01836] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sandra E. Temmel
- Energy & Environment Division, Paul Scherrer Institut, Villigen PSI 5232, Switzerland
| | - Emiliana Fabbri
- Energy & Environment Division, Paul Scherrer Institut, Villigen PSI 5232, Switzerland
| | - Daniele Pergolesi
- Energy & Environment Division, Paul Scherrer Institut, Villigen PSI 5232, Switzerland
| | - Thomas Lippert
- Energy & Environment Division, Paul Scherrer Institut, Villigen PSI 5232, Switzerland
- Laboratory
of Inorganic Chemistry, ETH Zürich, Zürich 8093, Switzerland
| | - Thomas J. Schmidt
- Energy & Environment Division, Paul Scherrer Institut, Villigen PSI 5232, Switzerland
- Laboratory
of Physical Chemistry, ETH Zürich, Zürich 8093, Switzerland
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32
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Asano M, Kawamura R, Sasakawa R, Todoroki N, Wadayama T. Oxygen Reduction Reaction Activity for Strain-Controlled Pt-Based Model Alloy Catalysts: Surface Strains and Direct Electronic Effects Induced by Alloying Elements. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01466] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masato Asano
- Graduate School of Environmental
Studies, Tohoku University, Sendai 980-8579, Japan
| | - Ryutaro Kawamura
- Graduate School of Environmental
Studies, Tohoku University, Sendai 980-8579, Japan
| | - Ren Sasakawa
- Graduate School of Environmental
Studies, Tohoku University, Sendai 980-8579, Japan
| | - Naoto Todoroki
- Graduate School of Environmental
Studies, Tohoku University, Sendai 980-8579, Japan
| | - Toshimasa Wadayama
- Graduate School of Environmental
Studies, Tohoku University, Sendai 980-8579, Japan
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33
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Cao L, Zhang G, Lu W, Qin X, Shao Z, Yi B. Preparation of hollow PtCu nanoparticles as high-performance electrocatalysts for oxygen reduction reaction in the absence of a surfactant. RSC Adv 2016. [DOI: 10.1039/c6ra04619c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hollow PtCu nanoparticles of about 6.9 nm supported on Vulcan XC-72 were synthesized by a facile method in the absence of a surfactant.
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Affiliation(s)
- Longsheng Cao
- Fuel Cell System and Engineering Group
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- 116023 Dalian
- PR China
| | - Geng Zhang
- Department of Chemistry
- College of Science
- Huazhong Agricultural University
- 430070 Wuhan
- PR China
| | - Wangting Lu
- Institute for Interdisciplinary Research
- Jianghan University
- 430056 Wuhan
- PR China
| | - Xiaoping Qin
- Fuel Cell System and Engineering Group
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- 116023 Dalian
- PR China
| | - Zhigang Shao
- Fuel Cell System and Engineering Group
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- 116023 Dalian
- PR China
| | - Baolian Yi
- Fuel Cell System and Engineering Group
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- 116023 Dalian
- PR China
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34
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Mahata A, Rawat KS, Choudhuri I, Pathak B. Cuboctahedral vs. octahedral platinum nanoclusters: insights into the shape-dependent catalytic activity for fuel cell applications. Catal Sci Technol 2016. [DOI: 10.1039/c6cy01709f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The shape of a catalyst plays an important role in any catalytic reaction.
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Affiliation(s)
- Arup Mahata
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology (IIT) Indore
- Indore
- India
| | - Kuber Singh Rawat
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology (IIT) Indore
- Indore
- India
| | - Indrani Choudhuri
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology (IIT) Indore
- Indore
- India
| | - Biswarup Pathak
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology (IIT) Indore
- Indore
- India
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35
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Du M, Cui L, Cao Y, Bard AJ. Mechanoelectrochemical Catalysis of the Effect of Elastic Strain on a Platinum Nanofilm for the ORR Exerted by a Shape Memory Alloy Substrate. J Am Chem Soc 2015; 137:7397-403. [DOI: 10.1021/jacs.5b03034] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Minshu Du
- State
Key laboratory of Heavy Oil Processing and Department of Materials
Science and Engineering, China University of Petroleum, Beijing 102249, China
- Center
for Electrochemistry, Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Lishan Cui
- State
Key laboratory of Heavy Oil Processing and Department of Materials
Science and Engineering, China University of Petroleum, Beijing 102249, China
| | - Yi Cao
- Department
of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Allen J. Bard
- Center
for Electrochemistry, Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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36
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The influence of KOH concentration, oxygen partial pressure and temperature on the oxygen reduction reaction at Pt electrodes. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2014.12.044] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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