Highly Active and Selective Hydrogenation of CO2 to Ethanol by Ordered Pd-Cu Nanoparticles

被引：468

作者：

Bai, Shuxing ^{[1
]}

Shao, Qi ^{[1
]}

Wang, Pengtang ^{[1
]}

Dai, Qiguang ^{[2
]}

Wang, Xingyi ^{[2
]}

Huang, Xiaoqing ^{[1
]}

机构：

[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Jiangsu, Peoples R China

[2] East China Univ Sci & Technol, Sch Chem & Mol Engn, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2017年 / 139卷 / 20期

基金：

中国国家自然科学基金;

关键词：

OXYGEN-REDUCTION; CATALYTIC-REACTIONS; FACILE SYNTHESIS; CARBON-DIOXIDE; PALLADIUM; NANOCATALYSTS; NANOCRYSTALS; OXIDATION; METHANOL; GOLD;

D O I：

10.1021/jacs.7b03101

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Carbon dioxide (CO2) hydrogenation to ethanol (C2H5OH) is considered a promising way for CO2 conversion and utilization, whereas desirable conversion efficiency remains a challenge. Herein, highly active, selective and stable CO2 hydrogenation to C2H5OH was enabled by highly ordered Pd-Cu nanoparticles (NPs). By tuning the composition of the Pd-Cu NPs and catalyst supports, the efficiency of CO2 hydrogenation to C2H5OH was well optimized with Pd2Cu NPs/P25 exhibiting high selectivity to C2H5OH of up to 92.0% and the highest turnover frequency of 359.0 h(-1). Diffuse reflectance infrared Fourier transform spectroscopy results revealed the high C2H5OH production and selectivity of Pd2Cu NPs/P25 can be ascribed to boosting *CO (adsorption CO) hydrogenation to *HCO, the rate-determining step for the CO2 hydrogenation to C2H5OH.

引用

页码：6827 / 6830

页数：4

共 35 条

[1]

Improved ethanol electrooxidation performance by shortening Pd-Ni active site distance in Pd-Ni-P nanocatalysts [J].