Technologies and perspectives for achieving carbon neutrality

The Innovation, Journal Year: 2021, Volume and Issue: 2(4), P. 100180 - 100180

Published: Oct. 30, 2021

Language: Английский

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Electrocatalysis for CO₂conversion: from fundamentals to value-added products

Chemical Society Reviews, Journal Year: 2021, Volume and Issue: 50(8), P. 4993 - 5061

Published: Jan. 1, 2021

This timely and comprehensive review mainly summarizes advances in heterogeneous electroreduction of CO₂: from fundamentals to value-added products.

Language: Английский

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CO ₂ electrolysis to multicarbon products in strong acid

Science, Journal Year: 2021, Volume and Issue: 372(6546), P. 1074 - 1078

Published: June 3, 2021

Carbon dioxide electroreduction (CO2R) is being actively studied as a promising route to convert carbon emissions valuable chemicals and fuels. However, the fraction of input CO2 that productively reduced has typically been very low, <2% for multicarbon products; balance reacts with hydroxide form carbonate in both alkaline neutral reactors. Acidic electrolytes would overcome this limitation, but hydrogen evolution hitherto dominated under those conditions. We report concentrating potassium cations vicinity electrochemically active sites accelerates activation enable efficient CO2R acid. achieve on copper at pH <1 single-pass utilization 77%, including conversion efficiency 50% toward products (ethylene, ethanol, 1-propanol) current density 1.2 amperes per square centimeter full-cell voltage 4.2 volts.

Language: Английский

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Photoinduction of Cu Single Atoms Decorated on UiO-66-NH₂ for Enhanced Photocatalytic Reduction of CO₂ to Liquid Fuels

Journal of the American Chemical Society, Journal Year: 2020, Volume and Issue: 142(45), P. 19339 - 19345

Published: Oct. 29, 2020

Photocatalytic reduction of CO2 to value-added fuels is a promising route reduce global warming and enhance energy supply. However, poor selectivity low efficiency catalysts are usually the limiting factor their applicability. Herein, photoinduction method was developed achieve formation Cu single atoms on UiO-66-NH2 support (Cu SAs/UiO-66-NH2) that could significantly boost photoreduction liquid fuels. Notably, SAs/UiO-66-NH2 achieved solar-driven conversion methanol ethanol with an evolution rate 5.33 4.22 μmol h-1 g-1, respectively. These yields were much higher than those pristine nanoparticles/UiO-66-NH2 composites. Theoretical calculations revealed introduction SAs greatly facilitates CHO* CO* intermediates, leading excellent toward ethanol. This study provides new insights for designing high-performance catalyst photocatalytic at atomic scale.

Language: Английский

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Electrocatalytic Refinery for Sustainable Production of Fuels and Chemicals

Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 60(36), P. 19572 - 19590

Published: Feb. 19, 2021

Abstract Compared to modern fossil‐fuel‐based refineries, the emerging electrocatalytic refinery (e‐refinery) is a more sustainable and environmentally benign strategy convert renewable feedstocks energy sources into transportable fuels value‐added chemicals. A crucial step in conducting e‐refinery processes development of appropriate reactions optimal electrocatalysts for efficient cleavage formation chemical bonds. However, compared well‐studied primary (e.g., O 2 reduction, water splitting), mechanistic aspects materials design complex are yet be settled. To address this challenge, herein, we first present fundamentals heterogeneous electrocatalysis some reactions, then implement these establish framework by coupling situ generated intermediates (integrated reactions) or products (tandem reactions). We also set principles strategies efficiently manipulate reaction pathways.

Language: Английский

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The future of low-temperature carbon dioxide electrolysis depends on solving one basic problem

Nature Communications, Journal Year: 2020, Volume and Issue: 11(1)

Published: Oct. 16, 2020

Carbonate formation is the primary source of energy and carbon losses in low-temperature dioxide electrolysis. Realigning research priorities to address carbonate problem essential if this technology become a viable option for renewable chemical fuel production. Low-temperature electrolysis an attractive process sustainable synthesis, but current systems suffer from low efficiency. In comment, authors discuss limitations arising reaction between hydroxide, highlighting need new fundamental problem.

Language: Английский

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Electrocatalytic reduction of CO₂ and CO to multi-carbon compounds over Cu-based catalysts

Chemical Society Reviews, Journal Year: 2021, Volume and Issue: 50(23), P. 12897 - 12914

Published: Jan. 1, 2021

This tutorial review discusses the similarities and differences between electrocatalytic reduction of CO 2 to C 2+ olefins oxygenates over Cu-based catalysts.

Language: Английский

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Gas diffusion electrodes, reactor designs and key metrics of low-temperature CO2 electrolysers

Nature Energy, Journal Year: 2022, Volume and Issue: 7(2), P. 130 - 143

Published: Feb. 17, 2022

Language: Английский

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High carbon utilization in CO2 reduction to multi-carbon products in acidic media

Nature Catalysis, Journal Year: 2022, Volume and Issue: 5(6), P. 564 - 570

Published: June 9, 2022

Language: Английский

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Theory-oriented screening and discovery of advanced energy transformation materials in electrocatalysis

Advanced Powder Materials, Journal Year: 2021, Volume and Issue: 1(1), P. 100013 - 100013

Published: Nov. 15, 2021

Various metal-based electrocatalysts from nanocrystals, to clusters and single-atoms, have been well-discovered towards high-efficient power devices electrocatalytic conversion. To accelerate energy transformation materials discovery, developing high-throughput DFT calculations machine-learning techniques is of great necessity. This review comprehensively outlines the latest progress theory-guided design advanced materials. Especially, we focus on study single atoms in various devices, such as fuel cell (oxygen reduction reaction, ORR; acid oxidation reaction; alcohol reaction), other reactions for energy-related conversion small molecules, H2O2 evolution (2e− ORR), water splitting (H2 reaction/O2 HER/OER), N2 reaction (NRR), CO2 (CO2RR). Firstly, electronic structure, interaction mechanism, activation path are discussed provide an overall blueprint electrocatalysis batteries mentioned above. Thereafter, experimental synthesis strategies, structural recognition, performance figured out. Finally, some viewpoints into current issues future concept provided.

Language: Английский

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