Catalytic CO2 hydrogenation to formic acid over carbon nanotube-graphene supported PdNi alloy catalysts

被引：98

作者：

Lan Thi Mai Nguyen ^{[1
]}

Park, Hunmin ^{[1
]}

Banu, Marimuthu ^{[2
]}

Kim, Jae Yul ^{[3
]}

Youn, Duck Hyun ^{[2
]}

Magesh, Ganesan ^{[2
]}

Kim, Won Yong ^{[1
]}

Lee, Jae Sung ^{[2
]}

机构：

[1] Pohang Univ Sci & Technol POSTECH, Dept Chem Engn, Pohang 790784, South Korea

[2] UNIST, Sch Energy & Chem Engn, Ulsan 689798, South Korea

[3] LG Chem Ltd, Basic Mat & Chem R&D, Daejeon 305738, South Korea

来源：

RSC ADVANCES | 2015年 / 5卷 / 128期

关键词：

ROOM-TEMPERATURE; AQUA COMPLEXES; DIOXIDE; PALLADIUM; STORAGE; DECOMPOSITION; NANOPARTICLES; REDUCTION; OXIDATION;

D O I：

10.1039/c5ra21017h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Pure formic acid was successfully produced via CO2 hydrogenation for the first time over a heterogeneous catalyst of PdNi alloy on a carbon nanotube-graphene (CNT-GR) support in water as an eco-friendly solvent without a base additive. The highest formic acid yield obtained was 1.92 mmol with a turnover number of 6.4 and a turnover frequency of 1.2 x 10(-4) s(-1) under mild reaction conditions of 40 degrees C and 50 bar. Alloying Pd with Ni brought a significant enhancement in catalytic activity compared to the monometallic Pd catalyst. In addition, the CNT-GR composite as a catalytic support improved the dispersion of Pd-Ni alloy particles, which exhibited good stability under the reaction conditions.

引用

页码：105560 / 105566

页数：7

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