scholarly journals Ruthenium Inserted Hydrotalcite (Ru-HT) Heterogeneous Catalyst for the Kinetic Studies of Selective Hydrogenation of Carbon Dioxide to Formic Acid

2021 ◽  
Author(s):  
Minaxi S. Maru ◽  
Sanwala Ram ◽  
Noorul Hasan Khan ◽  
Ram Sambhar Shukla
Keyword(s):  
Carbon Dioxide ◽  
Formic Acid ◽  
Heterogeneous Catalyst ◽  
Selective Hydrogenation ◽  
Kinetic Studies ◽  
Turnover Number ◽  
Hydrogenation Of Carbon Dioxide ◽  
Hydrogenation Of Co

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...

Hydrogenation of carbon dioxide catalyzed by ruthenium trimethylphosphine complexes — Effect of gas pressure and additives on rate in the liquid phase

2001 ◽  
Vol 79 (5-6) ◽  
pp. 719-724
Author(s):  
Colin A Thomas ◽  
R Jason Bonilla ◽  
Yong Huang ◽  
Philip G Jessop
Keyword(s):  
Carbon Dioxide ◽  
Formic Acid ◽  
Reaction Medium ◽  
Phase Behaviour ◽  
Kinetic Measurements ◽  
Insertion Mechanism ◽  
Acid Catalyzed ◽  
Gas Expansion ◽  
Hydrogenation Of Carbon Dioxide ◽  
Hydrogenation Of Co

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.

scholarly journals Hydrogenation of carbon dioxide to methanol using a homogeneous ruthenium–Triphos catalyst: from mechanistic investigations to multiphase catalysis

2015 ◽  
Vol 6 (1) ◽  
pp. 693-704 ◽  
Author(s):  
Sebastian Wesselbaum ◽  
Verena Moha ◽  
Markus Meuresch ◽  
Sandra Brosinski ◽  
Katharina M. Thenert ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Mechanistic Investigations ◽  
Organometallic Catalyst ◽  
First Time ◽  
Hydrogenation Of Carbon Dioxide ◽  
Hydrogenation Of Co

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.

A phenanthroline-based porous organic polymer for the iridium-catalyzed hydrogenation of carbon dioxide to formate

2019 ◽  
Vol 7 (23) ◽  
pp. 14019-14026 ◽  
Author(s):  
Gunniya Hariyanandam Gunasekar ◽  
Sungho Yoon
Keyword(s):  
Carbon Dioxide ◽  
Functional Groups ◽  
Single Site ◽  
Organic Polymer ◽  
Selective Catalyst ◽  
Porous Organic Polymer ◽  
Highly Active ◽  
First Time ◽  
Hydrogenation Of Carbon Dioxide ◽  
Hydrogenation Of Co

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.

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 ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Bimetallic Catalyst ◽  
The Future ◽  
Hydrogenation Of Carbon Dioxide ◽  
Insight Into ◽  
Hydrogenation Of Co

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

Cobalt–Nickel Catalysts for Selective Hydrogenation of Carbon Dioxide into Ethanol

ACS Catalysis ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 11335-11340 ◽  
Author(s):  
Lingxiang Wang ◽  
Shenxian He ◽  
Liang Wang ◽  
Ye Lei ◽  
Xiangju Meng ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Selective Hydrogenation ◽  
Nickel Catalysts ◽  
Cobalt Nickel ◽  
Hydrogenation Of Carbon Dioxide

Transfer hydrogenation of carbon dioxide via bicarbonate promoted by bifunctional C–N chelating Cp*Ir complexes

2020 ◽  
Vol 56 (73) ◽  
pp. 10762-10765
Author(s):  
Yasuhiro Sato ◽  
Yoshihito Kayaki ◽  
Takao Ikariya
Keyword(s):  
Carbon Dioxide ◽  
Transfer Hydrogenation ◽  
Turnover Number ◽  
Mild Conditions ◽  
Carbonate Salts ◽  
Hydrogenation Of Carbon Dioxide

Metal–NH cooperative Ir complexes having a C–N chelate effectively promoted the reduction of bicarbonate and half-carbonate salts formed from CO2 in 2-propanol under mild conditions to produce formate salts with a maximum turnover number of 3200.

Theoretical study of CO2 hydrogenation into formic acid on Lewis acid zeolites

2018 ◽  
Vol 20 (39) ◽  
pp. 25179-25185 ◽  
Author(s):  
Worawaran Thongnuam ◽  
Thana Maihom ◽  
Saowapak Choomwattana ◽  
Yuwanda Injongkol ◽  
Bundet Boekfa ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Density Functional Theory ◽  
Formic Acid ◽  
Density Functional ◽  
Theoretical Study ◽  
Co2 Hydrogenation ◽  
Functional Theory ◽  
Acid Zeolites ◽  
Acidic Zeolites ◽  
Hydrogenation Of Carbon Dioxide

The hydrogenation of carbon dioxide (CO2) to formic acid over Lewis acidic zeolites as catalyst has been investigated by means of density functional theory (DFT) with the M06-L functional.

A highly active copper catalyst for the hydrogenation of carbon dioxide to formate under ambient conditions

2020 ◽  
Vol 49 (9) ◽  
pp. 2994-3000
Author(s):  
Karan Chaudhary ◽  
Manoj Trivedi ◽  
D. T. Masram ◽  
Abhinav Kumar ◽  
Girijesh Kumar ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Copper Catalyst ◽  
Catalytic Conversion ◽  
Ambient Conditions ◽  
Turnover Number ◽  
Highly Active ◽  
Tin Metal ◽  
Hydrogenation Of Carbon Dioxide

Catalytic conversion of CO2via hydrogenation using in situ gaseous H2 (granulated tin metal and concentrated HCl) to produce the formate salt (HCO2−) with turnover number (TON) values of 326 to 1.065 × 105 in 12 h to 48 h of reaction at 25 °C to 80 °C has been reported.

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