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Ni和Pt在乙酸加氢中的协同作用
Frontiers of Chemical Science and Engineering
(
IF
4.3
)
Pub Date : 2021-08-31
, DOI:
10.1007/s11705-021-2076-4
Deng Pan
1
,
Jiahua Zhou
1
,
Shengping Wang
1
,
Yujun Zhao
1
,
Xinbin Ma
1
,
Bo Peng
2
Affiliation
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, China
- SINOPEC Research Institute of Petroleum Processing (RIPP), Beijing, 100083, China
羧酸催化加氢制醇是生物质转化的重要策略之一。在此,制备、表征和研究了一系列 Ni 掺杂 PtSn 催化剂在乙酸加氢中的应用。Ni掺杂剂与Pt有很强的相互作用,促进了氢的吸附,为氢化提供了一个活化的富氢环境。同时,Ni 的存在也改善了 Pt 的分散,为氢活化提供了更多的活性位点。Pt和Ni的配合显着促进了乙酸加氢制乙醇的催化活性。结果表明,含 0.1% Ni 的催化剂表现出最好的反应活性,其时空产率是 PtSn/SiO 2 的两倍催化剂。它为羧酸加氢的催化剂设计提供了有意义的指导。
"点击查看英文标题和摘要"
The cooperation effect of Ni and Pt in the hydrogenation of acetic acid
The catalytic hydrogenation of carboxylic acid to alcohols is one of the important strategies for the conversion of biomass. Herein, a series of Ni-doped PtSn catalysts were prepared, characterized and studied in the hydrogenation of acetic acid. The Ni dopant has a strong interaction with Pt, which promotes the hydrogen adsorption, providing an activated hydrogen-rich environment for the hydrogenation. Meanwhile, the presence of Ni also improves the Pt dispersion, giving more accessible active sites for hydrogen activation. The cooperation of Pt and Ni significantly promotes the catalytic activity of the hydrogenation of acetic acid to ethanol. As a result, the catalyst with 0.1% Ni exhibits the best reaction activity, and its space time yield is twice as that of the PtSn/SiO2 catalyst. It provides a meaningful instruction on the catalyst design for the carboxylic acid hydrogenation.
更新日期:2021-09-02