https://scholars.lib.ntu.edu.tw/handle/123456789/575741
標題: | Efficient Hydrogen Oxidation Catalyzed by Strain-Engineered Nickel Nanoparticles | 作者: | Ni W Wang T Schouwink P.A Chuang Y.-C Chen H.M Hu X. HAO MING CHEN |
關鍵字: | Binding energy; Binding sites; Catalyst activity; Electrocatalysts; Energy conversion; Fuel cells; Hydrogen evolution reaction; Metal-Organic Frameworks; Nickel; Organometallics; Strain; Energy conversion devices; Hydrogen binding; Hydrogen oxidation; Hydrogen oxidation reaction; Hydroxide exchange membranes; Nickel nanoparticles; Number of active sites; Platinum group metals; Metal nanoparticles | 公開日期: | 2020 | 卷: | 59 | 期: | 27 | 起(迄)頁: | 10797-10801 | 來源出版物: | Angewandte Chemie - International Edition | 摘要: | The hydroxide-exchange membrane fuel cell (HEMFC) is a promising energy conversion device. However, the development of HEMFC is hampered by the lack of platinum-group-metal-free (PGM-free) electrocatalysts for the hydrogen oxidation reaction (HOR). Now, a Ni catalyst is reported that exhibits the highest mass activity in HOR for a PGM-free catalyst as well as excellent activity in the hydrogen evolution reaction (HER). This catalyst, Ni-H2-2 %, was optimized through pyrolysis of a Ni-containing metal-organic framework precursor under a mixed N2/H2 atmosphere, which yielded carbon-supported Ni nanoparticles with different levels of strains. The Ni-H2-2 % catalyst has an optimal level of strain, which leads to an optimal hydrogen binding energy and a high number of active sites. ? 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85084117593&doi=10.1002%2fanie.201916314&partnerID=40&md5=cecdae060a56a2c8b90d02f28b2ab532 https://scholars.lib.ntu.edu.tw/handle/123456789/575741 |
ISSN: | 14337851 | DOI: | 10.1002/anie.201916314 |
顯示於: | 化學系 |
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