Efficient Role of Nanosheet-Like Pr2O3 Induced Surface-Interface Synergistic Structures over Cu-Based Catalysts for Enhanced Methanol Production from CO2 Hydrogenation

2022 ◽  
Author(s):  
Guangcheng Zhang ◽  
Mengran Liu ◽  
Guoli Fan ◽  
Lirong Zheng ◽  
Feng Li
Keyword(s):  
Co2 Hydrogenation ◽  
Methanol Production

Application of cobalt ferrite nano-catalysts for methanol synthesis by CO2 hydrogenation: Deciphering the role of metals cations distribution

2021 ◽  
Author(s):  
Abdulrahman I. Alharthi ◽  
Israf Ud Din ◽  
Mshari A. Alotaibi ◽  
Gabriele Centi
Keyword(s):  
Methanol Synthesis ◽  
Cobalt Ferrite ◽  
Co2 Hydrogenation ◽  
Nano Catalysts

scholarly journals Tailoring of Hydrotalcite-Derived Cu-Based Catalysts for CO2 Hydrogenation to Methanol

Catalysts ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1058 ◽  
Author(s):  
Leone Frusteri ◽  
Catia Cannilla ◽  
Serena Todaro ◽  
Francesco Frusteri ◽  
Giuseppe Bonura
Keyword(s):  
Metallic Copper ◽  
Chemical Properties ◽  
Active Phase ◽  
Co2 Hydrogenation ◽  
High Dispersion ◽  
Experimental Conditions ◽  
Typical Structure ◽  
Methanol Production ◽  
Physico Chemical ◽  
Space Time Yield

Ternary CuxZnyAlz catalysts were prepared using the hydrotalcite (HT) method. The influence of the atomic x:y:z ratio on the physico-chemical and catalytic properties under CO2 hydrogenation conditions was probed. The characterization data of the investigated catalysts were obtained by XRF, XRD, BET, TPR, CO2-TPD, N2O chemisorption, SEM, and TEM techniques. In the “dried” catalyst, the typical structure of a hydrotalcite phase was observed. Although the calcination and subsequent reduction treatments determined a clear loss of the hydrotalcite structure, the pristine phase addressed the achievement of peculiar physico-chemical properties, also affecting the catalytic activity. Textural and surface effects induced by the zinc concentration conferred a very interesting catalyst performance, with a methanol space time yield (STY) higher than that of commercial systems operated under the same experimental conditions. The peculiar behavior of the hydrotalcite-like samples was related to a high dispersion of the active phase, with metallic copper sites homogeneously distributed among the oxide species, thereby ensuring a suitable activation of H2 and CO2 reactants for a superior methanol production.

scholarly journals Investigation on the promotional role of Ga2O3 on the CuO–ZnO/HZSM-5 catalyst for CO2 hydrogenation

RSC Advances ◽  
2021 ◽  
Vol 11 (24) ◽  
pp. 14426-14433
Author(s):  
Jie Du ◽  
Yajing Zhang ◽  
Kangjun Wang ◽  
Fu Ding ◽  
Songyan Jia ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Co2 Hydrogenation ◽  
Hydrogenation Of Co

The additive Ga2O3 improved the catalytic performance of CuO–ZnO/HZSM-5 catalysts for hydrogenation of CO2 to DME.

The promoting role of Ga in ZnZrOx solid solution catalyst for CO2 hydrogenation to methanol

2021 ◽  
Author(s):  
Feng Sha ◽  
Chizhou Tang ◽  
Shan Tang ◽  
Qingnan Wang ◽  
Zhe Han ◽  
...  
Keyword(s):  
Solid Solution ◽  
Co2 Hydrogenation

Methanol Production via Bioelectrocatalytic Reduction of Carbon Dioxide: Role of Carbonic Anhydrase in Improving Electrode Performance

2011 ◽  
Vol 14 (4) ◽  
pp. E9 ◽  
Author(s):  
Paul K. Addo ◽  
Robert L. Arechederra ◽  
Abdul Waheed ◽  
James D. Shoemaker ◽  
William S. Sly ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbonic Anhydrase ◽  
Methanol Production ◽  
Electrode Performance

scholarly journals Highly Selective Au/ZnO via Colloidal Deposition for CO2 Hydrogenation to Methanol: Evidence of AuZn Role

2021 ◽  
Vol 16 (1) ◽  
pp. 44-51
Author(s):  
Hasliza Bahruji ◽  
Mshaal Almalki ◽  
Norli Abdullah
Keyword(s):  
Active Sites ◽  
Au Nanoparticles ◽  
High Selectivity ◽  
Average Diameter ◽  
Co2 Hydrogenation ◽  
Impregnation Method ◽  
Co2 Conversion ◽  
Methanol Production ◽  
Surface Oxygen Vacancy ◽  
Colloidal Method

Gold, Au nanoparticles were deposited on ZnO, Al2O3, and Ga2O3 via colloidal method in order to investigate the role of support for CO2 hydrogenation to methanol. Au/ZnO was also produced using impregnation method to investigate the effect of colloidal method to improve methanol selectivity. Au/ZnO produced via sol immobilization showed high selectivity towards methanol meanwhile impregnation method produced Au/ZnO catalyst with high selectivity towards CO. The CO2 conversion was also influenced by the amount of Au weight loading. Au nanoparticles with average diameter of 3.5 nm exhibited 4% of CO2 conversion with 72% of methanol selectivity at 250 °C and 20 bar. The formation of AuZn alloy was identified as active sites for selective CO2 hydrogenation to methanol. Segregation of Zn from ZnO to form AuZn alloy increased the number of surface oxygen vacancy for CO2 adsorption to form formate intermediates. The formate was stabilized on AuZn alloy for further hydrogenation to form methanol.  The use of Al2O3 and Ga2O3 inhibited the formation of Au alloy, and therefore reduced methanol production. Au/Al2O3 showed 77% selectivity to methane, meanwhile Au/Ga2O3 produced 100% selectivity towards CO. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 

The role of copper oxidation state in Cu/ZnO/Al2O3 catalysts in CO2 hydrogenation and methanol productivity

2019 ◽  
Vol 140 ◽  
pp. 452-460 ◽  
Author(s):  
Venkata D.B.C. Dasireddy ◽  
Blaž Likozar
Keyword(s):  
Oxidation State ◽  
Co2 Hydrogenation ◽  
Copper Oxidation

Role of Zirconia in Indium Oxide-Catalyzed CO2 Hydrogenation to Methanol

ACS Catalysis ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 1133-1145 ◽  
Author(s):  
Matthias S. Frei ◽  
Cecilia Mondelli ◽  
Alessia Cesarini ◽  
Frank Krumeich ◽  
Roland Hauert ◽  
...  
Keyword(s):  
Indium Oxide ◽  
Co2 Hydrogenation
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