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説明:

Zr-/Ce-/Sm-containing intermetallic compounds, specifically ZrZnNi4, CeNi5, CeAlNi4, CeNi4Si, Ce(NiSi)2, SmNi3, SmNi4Si, and Sm(NiSi)2, were synthesized by reducing the metal oxides using a CaH2 reducing agent within molten LiCl. The resultant nanopowders exhibited high specific surface areas: ZrZnNi4 (42.0 m2/g), CeAlNi4 (66.9 m2/g), and Sm(NiSi)2 (25.0 m2/g). They were subsequently tested for their effectiveness in the NaBH4-assisted hydrogenation of 4-nitrophenol. When compared to the prepared catalysts, including a conventional CeO2-supported Ni catalyst, ZrZnNi4 demonstrated the highest catalytic activity. Based on experimental results and density functional theory calculations, it was proposed that this enhanced performance could be attributed to the formation of electron-rich Ni species in ZrZnNi4.

権利情報:

• https://creativecommons.org/licenses/by-nc/3.0/
  

キーワード: catalysts

刊行年月日: 2026-04-17

出版者: Royal Society of Chemistry (RSC)

掲載誌:

• Dalton Transactions (ISSN: 14779234) vol. 55 issue. 17 p. 6876-6885

研究助成金:

• Ministry of Education, Culture, Sports, Science and Technology JPMXP125NM5175
• Japan Society for the Promotion of Science 23K23440
• Japan Society for the Promotion of Science 24K08591

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1039/d6dt00513f

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更新時刻: 2026-05-11 11:00:05 +0900

MDRでの公開時刻: 2026-05-11 12:24:43 +0900