Biomass-derived carbon frameworks for oxygen and carbon dioxide electrochemical reduction

Synthesis of novel bifunctional electrocatalysts based on nitrogen-doped carbon materials for both O 2 - and CO 2 - reduction reactions (ORR and CO 2 RR) becomes a promising strategy to promote the development of energy storage and the carbon cycle. Herein, insect-wing-derived carbon frameworks are...

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Veröffentlicht in:Ionics 2021-08, Vol.27 (8), p.3579-3586
Hauptverfasser: Qi, Gaocan, Zhao, Qianrui, Liu, Qingjian, Fang, Dongyu, Liu, Xijun
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container_end_page 3586
container_issue 8
container_start_page 3579
container_title Ionics
container_volume 27
creator Qi, Gaocan
Zhao, Qianrui
Liu, Qingjian
Fang, Dongyu
Liu, Xijun
description Synthesis of novel bifunctional electrocatalysts based on nitrogen-doped carbon materials for both O 2 - and CO 2 - reduction reactions (ORR and CO 2 RR) becomes a promising strategy to promote the development of energy storage and the carbon cycle. Herein, insect-wing-derived carbon frameworks are synthesized via a one-step pyrolysis to implement the electroreduction of O 2 and CO 2 . A four-electron dominated process, identical to the Pt-catalyzed ORR, but better methanol tolerance and electrochemical stabilities, is validated using the resulting catalysts. Further, they exhibit 24.3–56.4% faradic efficiencies for CO production at a moderate applied potential (– 0.9 V) and good durabilities (20 h). This efficient performance can be ascribed to the structural advantages and the nitrogen dopants. The present work provides a novel strategy for developing bifunctional electrocatalysts without the use of extensive synthesis procedures. Graphical abstract Insect-wing-derived carbon frameworks were developed as bifunctional catalysts for oxygen and carbon dioxide reduction. The revealed activity difference of these carbon frameworks can provide some guideline for designing advanced bifunctional electrocatalysts.
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subjects Carbon cycle
Carbon dioxide
Catalysts
Chemical reduction
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Electrocatalysts
Electrochemistry
Energy Storage
Insects
Optical and Electronic Materials
Original Paper
Pyrolysis
Renewable and Green Energy
title Biomass-derived carbon frameworks for oxygen and carbon dioxide electrochemical reduction
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