Fabrication of nanoporous metal catalysts by a dealloying method for molecular transformations

2015 Fiscal Year Final Research Report

• Project/Area Number: 23245020
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Synthetic chemistry
• Research Institution: Tohoku University
• Principal Investigator: YAMAMOTO Yoshinori 東北大学, 原子分子材料科学高等研究機構, 名誉教授 (60029519)
• Co-Investigator(Kenkyū-buntansha): JIN Tienan 東北大学, 原子分子材料科学高等研究機構, 准教授 (80431493)
• Project Period (FY): 2011-04-01 – 2016-03-31
• Keywords: ナノポーラス金属触媒 / 触媒プロセス / 有機化学反応

Outline of Final Research Achievements

Various nanoporous metals including Au, Pd, Cu, AuPd have been fabricated and their nanoporous structures were characterized by SEM, TEM, HRTEM, EDX, and BET. The nanoporous gold proved to be an excellent heterogeneous catalyst in oxidation of alcohols and organosilanes, selective reduction of alkyne, quinoline, imine, aldehyde, and ketone, selective diborylation of and hydrosilylation of alkynes, dehydrogenative cross-coupling of α-C(sp3)-H of amines, and benzannulation. Moreover, the nanoporous-Pd catalyst is a promising heterogeneous catalyst for the Suzuki coupling and Heck reaction. The nanoporous copper catalyst exhibited a distinct nanosize-dependent catalytic activity in the Click reaction of the terminal alkynes and organic azides. Interestingly, the AuPd alloy nanoporous catalyst showed a remarkable synergistic effect for the heterogeneous 1,4-hydrosilylation of conjugated cyclic enones with organosilane in comparison with nanoporous monometallic catalysts.

Free Research Field

合成化学