scholarly journals High selectivity of CO2 hydrogenation to CO by controlling the valence state of nickel using perovskite

2018 ◽  
Vol 54 (53) ◽  
pp. 7354-7357 ◽  
Author(s):  
Baohuai Zhao ◽  
Binhang Yan ◽  
Zhao Jiang ◽  
Siyu Yao ◽  
Zongyuan Liu ◽  
...  
Keyword(s):  
Valence State ◽  
High Selectivity ◽  
Co2 Hydrogenation ◽  
Product Selectivity

The product selectivity of CO2 hydrogenation can be significantly tuned by controlling the valence state of Ni using perovskites.

Coalescence and shape oscillations of Au nanoparticles in CO2 hydrogenation for methanol reaction

Nanoscale ◽  
2021 ◽  
Author(s):  
Shengnan Yue ◽  
Yongli Shen ◽  
Ziliang Deng ◽  
Wenjuan Yuan ◽  
Wei Xi
Keyword(s):  
Au Nanoparticles ◽  
High Selectivity ◽  
Co2 Hydrogenation ◽  
Au Nanoparticle ◽  
Limited Knowledge ◽  
Shape Oscillations

Recently, there has been renewed interest in Au nanoparticle (Au NP) catalysts owing to their high selectivity for CO2 hydrogenation to methanol. However, there is still limited knowledge on the...

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). 

scholarly journals Frontispiece: The Interplay between Structure and Product Selectivity of CO2 Hydrogenation

2019 ◽  
Vol 58 (33) ◽  
Author(s):  
Chengsheng Yang ◽  
Sihang Liu ◽  
Yanan Wang ◽  
Jimin Song ◽  
Guishuo Wang ◽  
...  
Keyword(s):  
Co2 Hydrogenation ◽  
Product Selectivity

scholarly journals CO2 Hydrogenation over Oxide-Supported PtCo Catalysts: The Role of the Oxide Support in Determining the Product Selectivity

2016 ◽  
Vol 128 (28) ◽  
pp. 8100-8105 ◽  
Author(s):  
Shyam Kattel ◽  
Weiting Yu ◽  
Xiaofang Yang ◽  
Binhang Yan ◽  
Yanqiang Huang ◽  
...  
Keyword(s):  
Co2 Hydrogenation ◽  
Product Selectivity ◽  
Oxide Support

scholarly journals Restructuring Ni/Al2O3 by addition of Ga to shift product selectivity in CO2 hydrogenation: The role of hydroxyl groups

2022 ◽  
Vol 57 ◽  
pp. 101881
Author(s):  
Ali M. Bahmanpour ◽  
Rob Jeremiah G. Nuguid ◽  
Louisa M. Savereide ◽  
Mounir D. Mensi ◽  
Davide Ferri ◽  
...  
Keyword(s):  
Co2 Hydrogenation ◽  
Hydroxyl Groups ◽  
Product Selectivity

Induced high selectivity methanol formation during CO2 hydrogenation over a CuBr2-modified CuZnZr catalyst

2020 ◽  
Vol 389 ◽  
pp. 47-59 ◽  
Author(s):  
Shuyao Chen ◽  
Junfeng Zhang ◽  
Faen Song ◽  
Qingde Zhang ◽  
Guohui Yang ◽  
...  
Keyword(s):  
High Selectivity ◽  
Co2 Hydrogenation ◽  
Methanol Formation

Reduction treatment of nickel phyllosilicate supported Pt nanocatalysts determining product selectivity in CO2 hydrogenation

2021 ◽  
Vol 52 ◽  
pp. 101674
Author(s):  
Miaomiao Song ◽  
Zhongliang Huang ◽  
Bin Chen ◽  
Sihan Liu ◽  
Shafqat Ullah ◽  
...  
Keyword(s):  
Co2 Hydrogenation ◽  
Product Selectivity ◽  
Reduction Treatment
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