Highly selective ammonia synthesis from nitrate with photocatalytically generated hydrogen on CuPd/TiO2

Miho Yamauchi, Ryu Abe, Tatsuya Tsukuda, Kenichi Kato, Masaki Takata

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Abstract

Body-centered-cubic type CuPd nanoalloys were synthesized by a chemical reduction method. Photocatalytic hydrogen evolution and nitrate reduction were simultaneously examined over CuPd nanoalloys deposited on TiO2 (CuPd/TiO2). The efficiency of hydrogen evolution over CuPd/TiO 2 was better than that over Pd/TiO2. As for nitrate reduction, ammonia was selectively (78%) produced with hydrogen generated photocatalytically over CuPd/TiO2. The continuous generation of nascent hydrogen atoms on the surface of the CuPd nanoalloy, where Cu and Pd are homogeneously mixed, led to the high selectivity for ammonia.

Original languageEnglish
Pages (from-to)1150-1152
Number of pages3
JournalJournal of the American Chemical Society
Volume133
Issue number5
DOIs
Publication statusPublished - 9 Feb 2011
Externally publishedYes

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