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Efficient Electrochemical Reduction of CO2 to HCOOH over Sub‐2 nm SnO2 Quantum Wires with Exposed Grain Boundaries

Open access
Liu, Subiao, Xiao, Jing, Lu, Xue Feng, Wang, Jiong, Wang, Xin, Lou, Xiong Wen (David)·2019·Angewandte Chemie International Edition

Abstract

Electrochemical reduction of CO 2 could mitigate environmental problems originating from CO 2 emission. Although grain boundaries (GBs) have been tailored to tune binding energies of reaction intermediates and consequently accelerate the CO 2 reduction reaction (CO 2 RR), it is challenging to exclusively clarify the correlation between GBs and enhanced reactivity in nanostructured materials with small dimension (<10 nm). Now, sub‐2 nm SnO 2 quantum wires (QWs) composed of individual quantum dots (QDs) and numerous GBs on the surface were synthesized and examined for CO 2 RR toward HCOOH formation. In contrast to SnO 2 nanoparticles (NPs) with a larger electrochemically active surface area (ECSA), the ultrathin SnO 2 QWs with exposed GBs show enhanced current density (j), an improved Faradaic efficiency (FE) of over 80 % for HCOOH and ca. 90 % for C1 products as well as energy efficiency (EE) of over 50 % in a wide potential window; maximum values of FE (87.3 %) and EE (52.7 %) are achieved.

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Metadata

Authors
Liu, S., Xiao, J., Lu, X. F., Wang, J., Wang, X., & Lou, X. W. (.
Venue
Angewandte Chemie International Edition
Publisher
Wiley
Published
2019-05-17
Volume
58
Issue
25
Pages
8499-8503
ISSN
  • 1433-7851 (ISSN-L)
  • 1521-3773
OpenAlex
W2935876896
Cited by
420
References
34
FWCI
12.83
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Efficient Electrochemical Reduction of CO2 to HCOOH over Sub‐2 nm SnO2 Quantum Wires with Exposed Grain Boundaries. https://app.cochat.ai/papers/10.1002/anie.201903613
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Liu, S., Xiao, J., Lu, X. F., Wang, J., Wang, X., & Lou, X. W. (. (2019). Efficient Electrochemical Reduction of CO2 to HCOOH over Sub‐2 nm SnO2 Quantum Wires with Exposed Grain Boundaries. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201903613

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