A palladium-nanoparticle and silicon-nanowire-array hybrid: a platform for catalytic heterogeneous reactions.
We report the development of a silicon nanowire array-stabilized palladium nanoparticle catalyst, SiNA-Pd. Its use in the palladium-catalyzed Mizoroki-Heck reaction, the hydrogenation of an alkene, the hydrogenolysis of nitrobenzene, the hydrosilylation of an α,β-unsaturated ketone, and the C-H bond functionalization reactions of thiophenes and indoles achieved a quantitative production with high reusability. The catalytic activity reached several hundred-mol ppb of palladium, reaching a TON of 2 000 000.
RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198 (Japan). ymayamada@riken.jp.
Yoichi M A
YM
Yamada
Yoshinari
Y
Yuyama
Takuma
T
Sato
Shigenori
S
Fujikawa
Yasuhiro
Y
Uozumi
D006865:Hydrogenation; D015394:Molecular Structure; D053758:Nanoparticles; D053770:Nanowires; D010165:Palladium / Q000737:chemistry*; D012825:Silicon / Q000737:chemistry*
D010165:Palladium; D012825:Silicon
CH bond functionalization; Mizoroki-Heck reaction; ozagrel; palladium nanoparticle; silicon-nanowire array