Atomic-level engineering of two-dimensional electrocatalysts for CO2 Reduction

Nanoscale ◽  
2021 ◽  
Author(s):  
Wei Shao ◽  
Xiaodong Zhang
Keyword(s):  
Carbon Dioxide ◽  
Fossil Fuels ◽  
Co2 Reduction ◽  
Value Added ◽  
Atomic Level ◽  
Two Dimensional ◽  
Excessive Consumption

Carbon dioxide (CO2) from the excessive consumption of fossil fuels has exhibited a huge threat to the planet’s ecosystem. Electrocatalytic CO2 reduction into value-added chemicals have been regarded as a...

An overview of flow cell architectures design and optimization for electrochemical CO2 reduction

2021 ◽  
Author(s):  
Dui Ma ◽  
Ting Jin ◽  
Keyu Xie ◽  
Haitao Huang
Keyword(s):  
Carbon Dioxide ◽  
Global Warming ◽  
Electrochemical Reduction ◽  
Atmospheric Carbon Dioxide ◽  
Co2 Reduction ◽  
Value Added ◽  
Flow Cell ◽  
Design And Optimization ◽  
Electrochemical Co2 Reduction ◽  
Carbon Dioxide Levels

Converting CO2 into value-added fuels or chemical feedstocks through electrochemical reduction is one of the several promising avenues to reduce atmospheric carbon dioxide levels and alleviate global warming. This approach...

Hierarchical three-dimensional copper selenide nanocubes microelectrodes for improved carbon dioxide reduction reaction

2021 ◽  
Author(s):  
Rajasekaran Elakkiya ◽  
Govindhan Maduraiveeran
Keyword(s):  
Carbon Dioxide ◽  
High Performance ◽  
Three Dimensional ◽  
Co2 Reduction ◽  
Value Added ◽  
Carbon Dioxide Reduction ◽  
Reduction Reaction ◽  
Earth Abundant ◽  
Carbon Dioxide Co2 ◽  
Co2 Reduction Reaction

Design of high-performance and Earth-abundant electrocatalysts for electrochemical carbon dioxide (CO2) reduction reaction (CO2RR) into fuels and value-added chemicals offers an emergent pathway for environment and energy sustainable concerns. Herein,...

scholarly journals Heterogeneous Electrocatalysts for CO2 Reduction to Value Added Products

2021 ◽  
Author(s):  
M. Amin Farkhondehfal ◽  
Juqin Zeng
Keyword(s):  
Fossil Fuels ◽  
Greenhouse Gas Emission ◽  
Global Climate ◽  
Renewable Energy Sources ◽  
Critical Role ◽  
Co2 Reduction ◽  
Value Added ◽  
Reduction Reaction ◽  
Added Value ◽  
Global Climate Changes

The CO2 that comes from the use of fossil fuels accounts for about 65% of the global greenhouse gas emission, and it plays a critical role in global climate changes. Among the different strategies that have been considered to address the storage and reutilization of CO2, the transformation of CO2 into chemicals and fuels with a high added-value has been considered a winning approach. This transformation is able to reduce the carbon emission and induce a “fuel switching” that exploits renewable energy sources. The aim of this chapter is to categorize different heterogeneous electrocatalysts which are being used for CO2 reduction, based on the desired products of the above mentioned reactions: from formic acid and carbon monoxide to methanol and ethanol and other possible by products. Moreover, a brief description of the kinetic and mechanism of the CO2 reduction reaction) and pathways toward different products have been discussed.

scholarly journals Positional effects of second-sphere amide pendants on electrochemical CO2 reduction catalyzed by iron porphyrins

2018 ◽  
Vol 9 (11) ◽  
pp. 2952-2960 ◽  
Author(s):  
Eva M. Nichols ◽  
Jeffrey S. Derrick ◽  
Sepand K. Nistanaki ◽  
Peter T. Smith ◽  
Christopher J. Chang
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gas ◽  
Electrochemical Reduction ◽  
Energy Input ◽  
Sustainable Energy ◽  
Co2 Reduction ◽  
Value Added ◽  
Iron Porphyrins ◽  
Electrochemical Co2 Reduction ◽  
Positional Effects

The development of catalysts for electrochemical reduction of carbon dioxide offers an attractive approach to transforming this greenhouse gas into value-added carbon products with sustainable energy input.

Low Full‐Cell Voltage Driven High‐Current‐Density Selective Paired Formate Electrosynthesis

2021 ◽  
Author(s):  
Chuqian Xiao ◽  
Ling Cheng ◽  
Yating Wang ◽  
Jinze Liu ◽  
Rongzhen Chen ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
High Current Density ◽  
Co2 Reduction ◽  
Value Added ◽  
Cell Voltage ◽  
High Current ◽  
Oxidation Of Methanol ◽  
Promising Strategy ◽  
Electro Oxidation ◽  
Carbon Dioxide Co2

Anodic selective electro‐oxidation of methanol paring with cathodic carbon dioxide (CO2) reduction is regarded as a promising strategy to generate value added formate product. We firstly design a 3D‐assembled NiCo...

Immobilization of catalytic sites on quantum dots by ligand bridging for photocatalytic CO2 reduction

Nanoscale ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 2507-2514 ◽  
Author(s):  
Yipeng Bao ◽  
Jin Wang ◽  
Qi Wang ◽  
Xiaofeng Cui ◽  
Ran Long ◽  
...  
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Quantum Dots ◽  
Solar Energy ◽  
Fossil Fuels ◽  
Co2 Reduction ◽  
Energy Crisis ◽  
Great Promise ◽  
Catalytic Sites ◽  
Global Problems

Harvesting solar energy to convert carbon dioxide (CO2) into fossil fuels shows great promise to solve the current global problems of energy crisis and climate change.

scholarly journals Electrochemical CO2 Reduction to CO Catalyzed by 2D Nanostructures

Catalysts ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 98 ◽  
Author(s):  
Chaitanya B. Hiragond ◽  
Hwapyong Kim ◽  
Junho Lee ◽  
Saurav Sorcar ◽  
Can Erkey ◽  
...  
Keyword(s):  
Recent Progress ◽  
Co2 Reduction ◽  
Value Added ◽  
Cost Effective ◽  
Metal Chalcogenides ◽  
Two Dimensional ◽  
Practical Application ◽  
Electrochemical Co2 Reduction ◽  
Excellent Activity ◽  
Transition Metal Chalcogenides

Electrochemical CO2 reduction towards value-added chemical feedstocks has been extensively studied in recent years to resolve the energy and environmental problems. The practical application of electrochemical CO2 reduction technology requires a cost-effective, highly efficient, and robust catalyst. To date, vigorous research have been carried out to increase the proficiency of electrocatalysts. In recent years, two-dimensional (2D) graphene and transition metal chalcogenides (TMCs) have displayed excellent activity towards CO2 reduction. This review focuses on the recent progress of 2D graphene and TMCs for selective electrochemical CO2 reduction into CO.

Conversion of Carbon Dioxide into Several Potential Chemical Commodities Following Different Pathways - A Review

2013 ◽  
Vol 764 ◽  
pp. 1-82 ◽  
Author(s):  
Ibram Ganesh
Keyword(s):  
Carbon Dioxide ◽  
Global Warming ◽  
Energy Density ◽  
Solar Energy ◽  
Fossil Fuels ◽  
Energy Resource ◽  
Value Added ◽  
High Energy ◽  
High Energy Density ◽  
Methanol Production

This article reviews the literature related to the direct uses of CO2and its conversion into various value added chemicals including high energy density liquid fuels such as methanol. The increase in the direct uses of CO2and its conversion into potential chemical commodities is very important as it directly contributes to the mitigation of CO2related global warming problem. The method being followed at present in several countries to reduce the CO2associated global warming is capturing of CO2at its major outlets using monoethanolamine based solution absorption technique followed by storing it in safe places such as, oceans, depleted coal seams, etc., (i.e., carbon dioxide capturing and storing in safe places, CCS process). This is called as CO2sequestration. Although, the CCS process is the most understood and immediate option to mitigate the global warming problem, it is considerably expensive and has become a burden for those countries, which are practicing this process. The other alternative and most beneficial way of mitigating this global warming problem is to convert the captured CO2into certain value added bulk chemicals instead of disposing it. Conversion of CO2into methanol has been identified as one of such cost effective ways of mitigating global warming problem. Further, if H2is produced from exclusively water using only solar energy instead of any fossil fuel based energy, and is used to convert CO2into methanol there are three major benefits: i) it contributes greatly to the global warming mitigation problem, ii) it greatly saves fossil fuels as methanol production from CO2could be an excellent sustainable and renewable energy resource, and iii) as on today, there is no better process than this to store energy in a more convenient and highly usable form of high energy density liquid fuel. Not only methanol, several other potential chemicals and value added chemical intermediates can be produced from CO2. In this article, i) synthesis of several commodity chemicals including poly and cyclic-carbonates, sodium carbonate and dimethyl carbonate, carbamates, urea, vicinal diamines, 2-arylsuccinic acids, dimethyl ether, methanol, various hydrocarbons, acetic acid, formaldehyde, formic acid, lower alkanes, etc., from CO2, ii) the several direct uses of CO2, and iii) the importance of producing methanol from CO2using exclusively solar energy are presented, discussed and summarized by citing all the relevant and important references.

Recent advances in low-temperature electrochemical conversion of carbon dioxide

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Farihahusnah Hussin ◽  
Mohamed Kheireddine Aroua
Keyword(s):  
Carbon Dioxide ◽  
Fossil Fuels ◽  
Industrial Revolution ◽  
Low Cost ◽  
Value Added ◽  
Primary Source ◽  
Green Energy ◽  
Computational Method ◽  
Electrochemical Conversion ◽  
Electrochemical Approach

AbstractSince the onset of the industrial revolution, fossil fuels have been the primary source of energy generation, and the continued exploitation of fossil fuels has led to an increase in the amount of atmospheric carbon dioxide. A lot of research currently focuses much on decreasing dependence on fossil fuels by replacing them with green energy. However, this technique poses a number of challenges, such as the need for improved infrastructure and technology and the high market penetration of renewable energy technologies. Capturing and converting carbon dioxide using electrochemical approaches can help to stabilize atmospheric greenhouse gas levels and create a positive future for the transformation of carbon dioxide into a number of value-added products. The conversion of carbon dioxide via electrochemical approach is a major challenge, and consideration must be given to the development and production of low-cost, stable, and highly efficient electrocatalysts. Hence, this review presents an overview of the current developments in the electrochemical conversion of carbon dioxide. In addition, this study discusses the current progress of electrocatalysts, in particular, the homogeneous and heterogeneous catalyst, which has a high level of activity and selectivity of low overpotential preferred products. The overview of the mechanisms and kinetics of the carbon dioxide reduction using the computational method are also addressed.

scholarly journals Electroreduction of CO2 to Formate with Low Overpotential Using Cobalt Pyridine Thiolate Complexes

2020 ◽  
Author(s):  
Subal Dey ◽  
Tanya K. Todorova ◽  
Marc Fontecave ◽  
Victor Mougel
Keyword(s):  
Density Functional ◽  
Fossil Fuels ◽  
Carbon Sources ◽  
Co2 Reduction ◽  
Value Added ◽  
Active Species ◽  
Carbonyl Complexes ◽  
Mechanistic Pathway ◽  
Thiolate Complexes ◽  
Low Overpotential

Electrocatalytic CO2 reduction to value-added products provides a viable alternative to the use of carbon sources derived from fossil fuels. Nevertheless, the ability to carry out these transformations at reasonable energetic costs, e.g. with low overpotential, remains a significant challenge. Molecular catalysts offer a great option in this context, as fine control of their activity and selectivity can be obtained via the tuning of their coordination sphere and ligand set. To this end, we investigated here a series of cheap cobalt(III) pyridine-thiolate complexes as electrocatalysts for CO2 reduction. The effect of the ligands and proton sources on activity was examined. We were able to identify [bipyridine-bis-(2-pyridinethiolato)-cobalt(III)-hexaflurophosphate] as a highly selective catalyst for formate production operating at a very low overpotential of 110 mV to achieve a TOF of 10 s-1. Detailed electrokinetic analysis coupled with density functional theory allowed establishing a mechanistic pathway for these catalysts, highlighting the role of key metal hydride intermediates. The catalysts deactivate via the formation of stable Co carbonyl complexes, but we demonstrated that the active species could be regenerated upon oxidation and release of coordinated CO ligands.<br>

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