Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/154783
Title: Concurrent H₂ generation and formate production assisted by CO₂ absorption in one electrolyzer
Authors: Cheng, Hongfei
Liu, Yumei
Wu, Jiawen
Zhang, Zheng
Li, Xiaogang
Wang, Xin
Fan, Hong Jin
Keywords: Engineering::Materials::Energy materials
Issue Date: 2021
Source: Cheng, H., Liu, Y., Wu, J., Zhang, Z., Li, X., Wang, X. & Fan, H. J. (2021). Concurrent H₂ generation and formate production assisted by CO₂ absorption in one electrolyzer. Small Methods, 5(11), 2100871-. https://dx.doi.org/10.1002/smtd.202100871
Project: RG157/19 
RG85/20 
A1983c0026 
Journal: Small Methods 
Abstract: Electrolyzers coupling electrocatalytic hydrogen evolution with oxidation reactions of small organic molecules have the merits of reducing cell voltage and generating high-value products. Herein, an electrolyzer is designed and optimized that can simultaneously achieve efficient hydrogen generation at the cathode, CO2 absorption by the catholyte, and methanol upgrading to formate at the anode. For these purposes, transition metal phosphides are used as the low-cost catalysts. The unique electrolyzer exhibits a low working voltage of 1.1 V at 10 mA cm-2 . Under optimal conditions, the Faraday efficiencies of hydrogen evolution and formic acid conversion reactions, which are the reaction products at the cathode and anode, respectively, are nearly 100% at various current densities from 10 to 400 mA cm-2 . Meanwhile, the CO2 absorption rate is about twice that of the hydrogen generation rate, which is close to the theoretical value. An innovative and energy-efficient strategy is presented in this work to realize simultaneous hydrogen production and CO2 capture based on low-cost catalyst materials.
URI: https://hdl.handle.net/10356/154783
ISSN: 2366-9608
DOI: 10.1002/smtd.202100871
Rights: This is the peer reviewed version of the following article: Cheng, H., Liu, Y., Wu, J., Zhang, Z., Li, X., Wang, X. & Fan, H. J. (2021). Concurrent H₂ generation and formate production assisted by CO₂ absorption in one electrolyzer. Small Methods, 5(11), 2100871-, which has been published in final form at https://doi.org/10.1002/smtd.202100871. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: embargo_20221122
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Journal Articles
SPMS Journal Articles

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  Until 2022-11-22
2.23 MBAdobe PDFUnder embargo until Nov 22, 2022

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