Electro‐Reconstruction‐Induced Strain Regulation and Synergism of Ag‐In‐S toward Highly Efficient CO₂ Electrolysis to Formate

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(25)

Published: March 18, 2022

Abstract Formate production from direct CO 2 electrolysis is economically appealing yet challenging in activity, selectivity, and stability. Herein, sulfur silver dual‐decorated indium quasi‐core–shell structures with compressive or tensile strain are rationally designed for efficiently electrocatalyzing to formate. The introduction of Ag S increases the current density, Faradaic efficiency, operational stability formate both H‐cell flow cell systems. As a result, optimized Ag‐In‐S bimetallic catalysts exhibit FE HCOO − ≈94.0% J more than −560.0 mA cm −2 at ≈−0.951 V RHE system, which far surpasses undecorated In catalyst. experimental theoretical calculations provide deeper understanding role interfacial between 4 9 shell AgIn core boosting electrocatalytic reduction formation energy *OCHO intermediate decreases charge transfer rate accelerated by interface strain.

Language: Английский

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MOF-Transformed In2O3-x@C Nanocorn Electrocatalyst for Efficient CO2 Reduction to HCOOH

Nano-Micro Letters, Journal Year: 2022, Volume and Issue: 14(1)

Published: Aug. 17, 2022

For electrochemical CO

Language: Английский

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A Pair-Electrosynthesis for Formate at Ultra-Low Voltage Via Coupling of CO2 Reduction and Formaldehyde Oxidation

Nano-Micro Letters, Journal Year: 2022, Volume and Issue: 14(1)

Published: Nov. 1, 2022

Formate can be synthesized electrochemically by CO2 reduction reaction (CO2RR) or formaldehyde oxidation (FOR). The CO2RR approach suffers from kinetic-sluggish oxygen evolution at the anode. To this end, an electrochemical system combining cathodic with anodic FOR was developed, which enables formate electrosynthesis ultra-low voltage. Cathodic employing BiOCl electrode in H-cell exhibited Faradaic efficiency (FE) higher than 90% within a wide potential range - 0.48 to 1.32 VRHE. In flow cell, current density of 100 mA cm-2 achieved 0.67 using Cu2O displayed low onset 0.13 VRHE and nearly 100% H2 selectivity 0.05 0.35 were constructed cell through membrane assembly for formate, where CO2RR//FOR delivered enhanced 0.86 V. This work provides promising pair-electrosynthesis value-added chemicals high FE energy consumption.

Language: Английский

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Emerging dual-atomic-site catalysts for electrocatalytic CO2 reduction

Science China Materials, Journal Year: 2022, Volume and Issue: 65(12), P. 3302 - 3323

Published: Oct. 12, 2022

Language: Английский

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Photothermal catalysis for CO2 conversion

Chinese Chemical Letters, Journal Year: 2022, Volume and Issue: 34(2), P. 107420 - 107420

Published: April 14, 2022

Language: Английский

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