A new and different insight into the promotion mechanisms of Ga for the hydrogenation of carbon dioxide to methanol over a Ga-doped Ni(211) bimetallic catalyst

Nanoscale ◽  
2019 ◽  
Vol 11 (20) ◽  
pp. 9969-9979 ◽  
Author(s):  
Qingli Tang ◽  
Wenchao Ji ◽  
Christopher K. Russell ◽  
Yulong Zhang ◽  
Maohong Fan ◽  
...  

The hydrogenation of CO2 to CH3OH is one of the most promising technologies for the utilization of captured CO2 in the future.

2015 ◽  
Vol 6 (1) ◽  
pp. 693-704 ◽  
Author(s):  
Sebastian Wesselbaum ◽  
Verena Moha ◽  
Markus Meuresch ◽  
Sandra Brosinski ◽  
Katharina M. Thenert ◽  
...  

The hydrogenation of CO2 to methanol using a recyclable molecular organometallic catalyst in the absence of an alcohol additive is demonstrated for the first time.


2019 ◽  
Vol 7 (23) ◽  
pp. 14019-14026 ◽  
Author(s):  
Gunniya Hariyanandam Gunasekar ◽  
Sungho Yoon

A novel phenanthroline-functionalized porous organic polymer (phen-POP) has been designed, and prepared for the first time without other reactive functional groups in the polymer skeleton. Post-synthetic metalation of phen-POP with IrCl3 afforded a single-site, highly active and selective catalyst for the hydrogenation of CO2 to formate.


2015 ◽  
Vol 51 (66) ◽  
pp. 13098-13101 ◽  
Author(s):  
Xinzheng Yang

A computationally designed aliphatic PNP iron complex as a mimic of the active center of [Fe]-hydrogenase for the hydrogenation of CO2.


2015 ◽  
Vol 6 (5) ◽  
pp. 2928-2931 ◽  
Author(s):  
Chong Liu ◽  
Jian-Hua Xie ◽  
Gui-Long Tian ◽  
Wei Li ◽  
Qi-Lin Zhou

A new iridium catalyst containing an imine–diphosphine ligand was developed for the hydrogenation of CO2 to formate.


2017 ◽  
Vol 7 (17) ◽  
pp. 3842-3850 ◽  
Author(s):  
Sebastian D. Pike ◽  
Andrés García-Trenco ◽  
Edward R. White ◽  
Alice H. M. Leung ◽  
Jonathan Weiner ◽  
...  

This paper reports on the influences of the catalyst preparation method and ligand effects for a series of highly active Cu/ZnO colloidal catalysts for the hydrogenation of CO2 to methanol.


2018 ◽  
Vol 54 (48) ◽  
pp. 6184-6187 ◽  
Author(s):  
Jacob M. Heltzel ◽  
Matthew Finn ◽  
Diana Ainembabazi ◽  
Kai Wang ◽  
Adelina M. Voutchkova-Kostal

Catalytic transfer hydrogenation of CO2 from glycerol to afford formic and lactic acid is an attractive path to valorizing two waste streams. The process is significantly more thermodynamically favorable than direct CO2 hydrogenation.


2016 ◽  
Vol 52 (84) ◽  
pp. 12422-12425 ◽  
Author(s):  
Hongyu Ge ◽  
Xiangyang Chen ◽  
Xinzheng Yang

A series of cobalt and manganese cyclopentadienone complexes are proposed and examined computationally as promising catalysts for hydrogenation of CO2.


2001 ◽  
Vol 79 (5-6) ◽  
pp. 719-724
Author(s):  
Colin A Thomas ◽  
R Jason Bonilla ◽  
Yong Huang ◽  
Philip G Jessop

Kinetic and mechanistic studies of CO2 hydrogenation were performed in liquid triethylamine and at subcritical CO2 pressures to avoid complications from phase behaviour that are observed under supercritical conditions. Kinetic measurements of the hydrogenation of CO2 to formic acid, catalyzed by RuCl(O2CMe)(PMe3)4, support a CO2 insertion mechanism. The reaction is first-order in both H2 and CO2 under most conditions. The rate is strongly dependent on the choice of additive, with methanol giving the greatest rates. Because only trace amounts of methanol are needed, the effect of the additive is believed to involve direct interactions with the catalyst rather than changes in the physical properties of the reaction medium. The optimized rates exceed 3500 h–1. Addition of an inert gas affects the rate of the reaction, probably via the phenomenon of gas expansion of the liquid phase.Key words: carbon dioxide, homogeneous catalysis, hydrogenation, formic acid, expanded liquids.


2021 ◽  
Author(s):  
Minaxi S. Maru ◽  
Sanwala Ram ◽  
Noorul Hasan Khan ◽  
Ram Sambhar Shukla

The kinetic studies have been done for the base-free hydrogenation of CO2 to formic acid using heterogeneous ruthenium inserted hydrotalcite (Ru-HT) catalyst. An impressive Turnover Number (TON = 11389) was...


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