scholarly journals Optimizing mesostructured silver catalysts for selective carbon dioxide conversion into fuels

2019 ◽  
Vol 12 (5) ◽  
pp. 1668-1678 ◽  
Author(s):  
Silvan Suter ◽  
Sophia Haussener
Keyword(s):  
Carbon Dioxide ◽  
Mass Transport ◽  
Silver Catalyst ◽  
Carbon Dioxide Conversion ◽  
Reaction Selectivity ◽  
Silver Catalysts ◽  
Substantial Rise

Mass transport is responsible for the substantial rise in reaction selectivity with increasing thickness of mesostructured silver catalyst films.

Iodide-derived nanostructured silver promotes selective and efficient carbon dioxide conversion into carbon monoxide

2018 ◽  
Vol 54 (21) ◽  
pp. 2666-2669 ◽  
Author(s):  
Ya Zhang ◽  
Lei Ji ◽  
Weibin Qiu ◽  
Xifeng Shi ◽  
Abdullah M. Asiri ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Silver Catalyst ◽  
Carbon Dioxide Conversion

An iodide-derived nanostructured silver catalyst (ID-Ag) is able to electrochemically reduce CO2to CO with approximately 94.5% selectivity at the potential of −0.7 V in CO2-saturated 0.5 M KHCO3. This value is much higher than that of Ag foil under identical conditions.

Tuning of Silver Catalyst Mesostructure Promotes Selective Carbon Dioxide Conversion into Fuels

2016 ◽  
Vol 128 (49) ◽  
pp. 15508-15512 ◽  
Author(s):  
Youngmin Yoon ◽  
Anthony Shoji Hall ◽  
Yogesh Surendranath
Keyword(s):  
Carbon Dioxide ◽  
Silver Catalyst ◽  
Carbon Dioxide Conversion

scholarly journals Tuning of Silver Catalyst Mesostructure Promotes Selective Carbon Dioxide Conversion into Fuels

2016 ◽  
Vol 55 (49) ◽  
pp. 15282-15286 ◽  
Author(s):  
Youngmin Yoon ◽  
Anthony Shoji Hall ◽  
Yogesh Surendranath
Keyword(s):  
Carbon Dioxide ◽  
Silver Catalyst ◽  
Carbon Dioxide Conversion

Nano-Folded Gold Electrocatalysts Enhance the Selectivity of Carbon Dioxide Reduction

2019 ◽  
Author(s):  
Kam Sang Kwok ◽  
Yuxuan Wang ◽  
Michael Cao ◽  
Hao Shen ◽  
Weinan Xu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Mass Transport ◽  
Gold Film ◽  
X Ray Diffraction ◽  
Thin Gold Film ◽  
Faradaic Efficiency ◽  
X Ray ◽  
Transmission Electron ◽  
Carbon Monoxide Formation ◽  
Catalytic Interfaces

<p>The local structure and geometry of catalytic interfaces can influence the selectivity of chemical reactions. Here, using a pre-strained polymer, we uniaxially compress a thin gold film to form a nano-folded catalyst. We observe two kinds of folds and can tune the ratio of loose to tight folds by varying the extent of pre-strain in the polymer. We characterize the nano-folded catalysts using x-ray diffraction, scanning, and transmission electron microscopy. We observe grain reorientation and coarsening in the nano-folded gold catalysts. Electroreduction of carbon dioxide with these nano-folded catalysts reveals an enhancement of Faradaic efficiency for carbon monoxide formation by a factor of about four. This result suggests that electrolyte mass transport limitations and an increase of the local pH in the tight folds of the catalyst outweigh the effects of alterations in grain characteristics. Together, our studies demonstrate that nano-folded geometries can significantly alter grain characteristics, mass transport, and catalytic selectivity. </p>

A review on recent developments in solar photoreactors for carbon dioxide conversion to fuels

2021 ◽  
Vol 47 ◽  
pp. 101515 ◽  
Author(s):  
Angel Francis ◽  
Shanmuga Priya S. ◽  
Harish Kumar S ◽  
Sudhakar K ◽  
Muhammad Tahir
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Conversion ◽  
Recent Developments

General framework for enzyme-photo-coupled catalytic system toward carbon dioxide conversion

2022 ◽  
Vol 73 ◽  
pp. 67-73
Author(s):  
Yiying Sun ◽  
Wenping Li ◽  
Zhuo Wang ◽  
Jiafu Shi ◽  
Zhongyi Jiang
Keyword(s):  
Carbon Dioxide ◽  
Catalytic System ◽  
General Framework ◽  
Carbon Dioxide Conversion

Chemical Recovery Processes of CO2

2021 ◽  
Vol 25 (12) ◽  
pp. 30-37
Author(s):  
L.G. Pinaeva ◽  
A.S. Noskov
Keyword(s):  
Carbon Dioxide ◽  
Synthesis Gas ◽  
Methanol Synthesis ◽  
Dimethyl Carbonate ◽  
Chemical Recovery ◽  
Target Product ◽  
Stable Carbon ◽  
Carbon Dioxide Conversion ◽  
Recovery Processes ◽  
Motor Fuels

Existing (production of urea, dimethyl carbonate, polypropylene carbonate) and promising (production of methanol, synthesis gas, monomers dedicated to synthesis of polyurethanes and polycarbonate) chemical technologies which any, time soon, may become CO2 based economy for producing motor fuels and basic chemicals have been overviewed. Based on estimates of CO2 removals in these processes, it has been concluded that there is a potential for developing technologies to produce methanol from CO2 to a competitive cost of the target product. It is expected that interest in this process will decrease if stable carbon dioxide conversion catalysts for methane are introduced into the market.

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