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
收藏
页码:105560 / 105566
页数:7
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