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Nanba Y, Koyama M. Thermodynamic Stabilities of PdRuM (M = Cu, Rh, Ir, Au) Alloy Nanoparticles Assessed by Wang–Landau Sampling Combined with DFT Calculations and Multiple Regression Analysis. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yusuke Nanba
- Research Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan
| | - Michihisa Koyama
- Research Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan
- Open Innovation Institute, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606-8501, Japan
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VALADEZ HUERTA G, NANBA Y, ZULKIFLI NDB, RIVERA ROCABADO DS, ISHIMOTO T, KOYAMA M. First-Principles Calculations of Stability, Electronic Structure, and Sorption Properties of Nanoparticle Systems. JOURNAL OF COMPUTER CHEMISTRY-JAPAN 2021. [DOI: 10.2477/jccj.2021-0028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | - Yusuke NANBA
- Research Initiative for Supra Materials, Shinshu University
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Chen T, Foo C, Edman Tsang SC. Interstitial and substitutional light elements in transition metals for heterogeneous catalysis. Chem Sci 2020; 12:517-532. [PMID: 34163781 PMCID: PMC8179013 DOI: 10.1039/d0sc06496c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 12/16/2020] [Indexed: 01/07/2023] Open
Abstract
The addition of foreign element dopants to monometallic nanoparticle catalysts is of great importance in industrial applications. Both substitutional and interstitial doping of pure metallic phases can give profound effects such as altering electronic and transport properties, lattice parameters, phase transitions, and consequently various physicochemical properties. For transition metal catalysts, this often leads to changes in catalytic activity and selectivity. This article provides an overview of the recent developments regarding the catalytic properties and characterisation of such systems. In particular, the structure-activity relationship for a number of important chemical reactions is summarised and the future prospects of this area are also explored.
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Affiliation(s)
- Tianyi Chen
- Wolfson Catalysis Centre, Department of Chemistry, University of Oxford Oxford OX1 3QR UK
| | - Christopher Foo
- Wolfson Catalysis Centre, Department of Chemistry, University of Oxford Oxford OX1 3QR UK
| | - Shik Chi Edman Tsang
- Wolfson Catalysis Centre, Department of Chemistry, University of Oxford Oxford OX1 3QR UK
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Lin B, Wu X, Xie L, Kang Y, Du H, Kang F, Li J, Gan L. Atomic Imaging of Subsurface Interstitial Hydrogen and Insights into Surface Reactivity of Palladium Hydrides. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Bingqing Lin
- Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen 518055 P. R. China
| | - Xi Wu
- Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen 518055 P. R. China
| | - Lin Xie
- Department of Physics Southern University of Science and Technology Shenzhen 518055 China
| | - Yongqiang Kang
- Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen 518055 P. R. China
| | - Hongda Du
- Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen 518055 P. R. China
| | - Feiyu Kang
- Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen 518055 P. R. China
| | - Jia Li
- Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen 518055 P. R. China
| | - Lin Gan
- Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen 518055 P. R. China
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Lin B, Wu X, Xie L, Kang Y, Du H, Kang F, Li J, Gan L. Atomic Imaging of Subsurface Interstitial Hydrogen and Insights into Surface Reactivity of Palladium Hydrides. Angew Chem Int Ed Engl 2020; 59:20348-20352. [PMID: 32621778 DOI: 10.1002/anie.202006562] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/15/2020] [Indexed: 11/07/2022]
Abstract
Resolving interstitial hydrogen atoms at the surfaces and interfaces is crucial for understanding the mechanical and physicochemical properties of metal hydrides. Although palladium (Pd) hydrides hold important applications in hydrogen storage and electrocatalysis, the atomic position of interstitial hydrogen at Pd hydride near surfaces still remains undetermined. We report the first direct imaging of subsurface hydrogen atoms absorbed in Pd nanoparticles by using differentiated and integrated differential phase contrast within an aberration-corrected scanning transmission electron microscope. In contrast to the well-established octahedral interstitial sites for hydrogen in the bulk, subsurface hydrogen atoms are directly identified to occupy the tetrahedral interstices. DFT calculations show that the amount and the occupation type of subsurface hydrogen atoms play an indispensable role in fine-tuning the electronic structure and associated chemical reactivity of the Pd surface.
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Affiliation(s)
- Bingqing Lin
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China
| | - Xi Wu
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China
| | - Lin Xie
- Department of Physics, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yongqiang Kang
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China
| | - Hongda Du
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China
| | - Feiyu Kang
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China
| | - Jia Li
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China
| | - Lin Gan
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China
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Yuan W, Ge M, Wang K, Hou X, Liu N, Deng Z, Guo R, Liu S, Zhao Y, He J, Xi W, Luo J, Ding Y. Atomic-scale selectivity of hydrogen for storage sites in Pd nanoparticles at atmospheric pressure. NANOSCALE 2019; 11:10198-10202. [PMID: 31112201 DOI: 10.1039/c9nr03294k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hydrogen-storage materials are important carriers for a viable hydrogen economy. Despite palladium being the most studied storage material, the hydrogen-storage mechanism of Pd remains ambiguous owing to the lack of atomic-scale evidence of the diffusion and storage of H atoms in its lattice. In the study reported here, this classical process was investigated on the atomic scale using an in situ transmission electron microscope equipped with an atmospheric-pressure sample holder. The expansion of the Pd interplanar spacings was found to comprise three distinct stages during the diffusion of H atoms. Moreover, the expansion in d-spacing of Pd{111} was markedly different from that of Pd{220}. First-principles calculations indicate that H atoms mainly occupy the centers of the tetrahedral cages in the Pd unit cells during the diffusion stage, and they eventually occupy the octahedral cage centers in the equilibrium state. Moreover, H atoms were detected in substantially high densities in defects such as stacking faults and twin boundaries. These observations on the preferred hydrogen-storage domains can help clarify the hydrogen-storage mechanism and offer guidelines on the future design of higher-capacity hydrogen-storage materials.
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Affiliation(s)
- Wenjuan Yuan
- Center for Electron Microscopy and Tianjin Key Laboratory of Advanced Functional Porous Materials, Institute for New Energy Materials & Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
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Dekura S, Kobayashi H, Kusada K, Kitagawa H. Hydrogen in Palladium and Storage Properties of Related Nanomaterials: Size, Shape, Alloying, and Metal-Organic Framework Coating Effects. Chemphyschem 2019; 20:1158-1176. [PMID: 30887646 DOI: 10.1002/cphc.201900109] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Indexed: 11/07/2022]
Abstract
One of the key issues for an upcoming hydrogen energy-based society is to develop highly efficient hydrogen-storage materials. Among the many hydrogen-storage materials reported, transition-metal hydrides can reversibly absorb and desorb hydrogen, and have thus attracted much interest from fundamental science to applications. In particular, the Pd-H system is a simple and classical metal-hydrogen system, providing a platform suitable for a thorough understanding of ways of controlling the hydrogen-storage properties of materials. By contrast, metal nanoparticles have been recently studied for hydrogen storage because of their unique properties and the degrees of freedom which cannot be observed in bulk, i. e., the size, shape, alloying, and surface coating. In this review, we overview the effects of such degrees of freedom on the hydrogen-storage properties of Pd-related nanomaterials, based on the fundamental science of bulk Pd-H. We shall show that sufficiently understanding the nature of the interaction between hydrogen and host materials enables us to control the hydrogen-storage properties though the electronic-structure control of materials.
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Affiliation(s)
- Shun Dekura
- Division of Chemistry, Graduate School of Science, Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan.,Current address: Institute for Solid State Physics, The University of Tokyo 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan
| | - Hirokazu Kobayashi
- Division of Chemistry, Graduate School of Science, Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan.,Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST) Honcho 4-1-8, Kawaguchi, Saitama, 332-0012, Japan
| | - Kohei Kusada
- Division of Chemistry, Graduate School of Science, Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate School of Science, Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan.,Inamori Frontier Research Center, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.,Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan
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