@article{325956e71da943adbab9f057e949cfe3,
title = "Hydrogen absorption and desorption on Rh nanoparticles revealed byin situdispersive X-ray absorption fine structure spectroscopy",
abstract = "To unveil the origin of the hydrogen-storage properties of rhodium nanoparticles (Rh NPs), we investigated the dynamical structural change of Rh NPs usingin situdispersive X-ray absorption fine structure spectroscopy (XAFS). The variation of the Rh-Rh interatomic distance and Debye-Waller factor of Rh NPs with a size of 4.0 and 10.5 nm during hydrogen absorption and desorption suggested that they have a different mechanism for hydrogen absorption, which is that the hydrogen absorption on the inner site has a greater contribution than that on a surface for Rh 4.0 nm. In the case of Rh 10.5 nm, it is opposed to Rh 4.0 nm. This study demonstrates a powerfulin situXAFS method for observing small local structural changes of metal nanoparticles and its importance for understanding of the hydrogen-absorption properties of Rh NPs with an interesting hydrogenation mechanism.",
author = "Chulho Song and Okkyun Seo and Daiju Matsumura and Satoshi Hiroi and Cui, {Yi Tao} and Jaemyung Kim and Yanna Chen and Akhil Tayal and Kohei Kusada and Hirokazu Kobayashi and Hiroshi Kitagawa and Osami Sakata",
note = "Funding Information: This work was partly supported by ACCEL (JPMJAC1501) of the Japan Science and Technology Agency (JST). The DXAFS measurements were performed at BL14B1 in SPring-8 with the approval of the Japan Synchrotron Radiation Institute under Proposal No. 2017B3632, 2018A3630, 2018A3632, 2018B3632, and 2019B3646 under the Shared Use Program of JAEA Facilities (Proposal No. 2017B-E03, 2018A-E02, 2018A-E03, 2018B-E06, and 2019B-E05), which are approved as part of the JAEA Nanotechnology Platform (Proposal No. JPMXP09A17AE0023, JPMXP09A18AE0002, JPMXP09A18AE0003, JPMXP09A18AE0026, and JPMXP09A19AE0025). This work was also partly supported by Japan Society for the Promotion of Science (JSPS) KAKENHI (Grants No. 18K04868 and 20K15083) and Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (Grant No. 2018R1A6A3A03012052). O. Sakata, C. Song, and H. Kitagawa managed the project. K. Kusada, H. Kobayashi, and H. Kitagawa synthesized the samples. O. Sakata, C. Song, O. Seo, D. Matsumura, S. Hiroi, Y.-T. Cui, J. Kim, Y. Chen, A. Tayal performed the XAFS experiments. C. Song, O. Seo, and D. Matsumura analyzed all the experimental data. C. Song, O. Seo, D. Matsumura, and O. Sakata wrote the manuscript with contribution from Y.-T. Cui. Funding Information: This work was partly supported by ACCEL (JPMJAC1501) of the Japan Science and Technology Agency (JST). The DXAFS measurements were performed at BL14B1 in SPring-8 with the approval of the Japan Synchrotron Radiation Institute under Proposal No. 2017B3632, 2018A3630, 2018A3632, 2018B3632, and 2019B3646 under the Shared Use Program of JAEA Facilities (Proposal No. 2017B-E03, 2018A-E02, 2018A-E03, 2018B-E06, and 2019B-E05), which are approved as part of the JAEA Nanotechnology Platform (Proposal No. JPMXP09A17AE0023, JPMXP09A18AE0002, JPMXP09A18AE0003, JPMXP09A18AE0026, and JPMXP09A19AE0025). This work was also partly supported by Japan Society for the Promotion of Science (JSPS) KAKENHI (Grants No. 18K04868 and 20K15083) and Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (Grant No. 2018R1A6A3A03012052). O. Sakata, C. Song, and H. Kitagawa managed the project. K. Kusada, H. Kobayashi, and H. Kitagawa synthesized the samples. O. Sakata, C. Song, O. Seo, D. Matsu-mura, S. Hiroi, Y.-T. Cui, J. Kim, Y. Chen, A. Tayal performed the XAFS experiments. C. Song, O. Seo, and D. Matsumura analyzed all the experimental data. C. Song, O. Seo, D. Matsumura, and O. Sakata wrote the manuscript with contribution from Y.-T. Cui. Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2020.",
year = "2020",
month = may,
day = "26",
doi = "10.1039/d0ra03322g",
language = "English",
volume = "10",
pages = "19751--19758",
journal = "RSC Advances",
issn = "2046-2069",
publisher = "Royal Society of Chemistry",
number = "34",
}