Upgrading CO2 into acetate on Bi2O3@carbon felt integrated electrode via coupling electrocatalysis with microbial synthesis
Abstract Upgrading of atmospheric CO2 into high‐value‐added acetate using renewable electricity via electrocatalysis solely remains a great challenge. Here, inspired by microbial synthesis via biocatalysts, we present a coupled system to produce acetate from CO2 by bridging inorganic electrocatalysi...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-04-01
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| Series: | SusMat |
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| Online Access: | https://doi.org/10.1002/sus2.117 |
| _version_ | 1797841191445725184 |
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| author | Xiaojing Liu Kang Zhang Yidan Sun Shukang Zhang Zhenyu Qiu Tianshun Song Jingjing Xie Yuping Wu Yuhui Chen |
| author_facet | Xiaojing Liu Kang Zhang Yidan Sun Shukang Zhang Zhenyu Qiu Tianshun Song Jingjing Xie Yuping Wu Yuhui Chen |
| author_sort | Xiaojing Liu |
| collection | DOAJ |
| description | Abstract Upgrading of atmospheric CO2 into high‐value‐added acetate using renewable electricity via electrocatalysis solely remains a great challenge. Here, inspired by microbial synthesis via biocatalysts, we present a coupled system to produce acetate from CO2 by bridging inorganic electrocatalysis with microbial synthesis through formate intermediates. A 3D Bi2O3@CF integrated electrode with an ice‐sugar gourd shape was fabricated via a straightforward hydrothermal synthesis strategy, wherein Bi2O3 microspheres were decorated on carbon fibers. This ice‐sugar gourd‐shaped architecture endows electrodes with multiple structural advantages, including synergistic contribution, high mass transport capability, high structural stability, and large surface area. Consequently, the resultant Bi2O3@CF exhibited a maximum Faradic efficiency of 92.4% at −1.23 V versus Ag/AgCl for formate generation in 0.5 M KHCO3, exceeding that of Bi2O3/CF prepared using a conventional electrode preparation strategy. Benefiting from the high formate selectivity, unique architecture, and good biocompatibility, the Bi2O3@CF electrode attached with enriched CO2‐fixing electroautotrophs served as a biocathode. As a result, a considerable acetate yield rate of 0.269 ± 0.009 g L−1 day−1 (a total acetate yield of 3.77 ± 0.12 g L−1 during 14‐day operation) was achieved in the electrochemical–microbial system equipped with Bi2O3@CF. |
| first_indexed | 2024-04-09T16:27:05Z |
| format | Article |
| id | doaj.art-104c68d013d44e9e971c4e05dce795ac |
| institution | Directory Open Access Journal |
| issn | 2692-4552 |
| language | English |
| last_indexed | 2024-04-09T16:27:05Z |
| publishDate | 2023-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | SusMat |
| spelling | doaj.art-104c68d013d44e9e971c4e05dce795ac2023-04-23T07:32:45ZengWileySusMat2692-45522023-04-013223524710.1002/sus2.117Upgrading CO2 into acetate on Bi2O3@carbon felt integrated electrode via coupling electrocatalysis with microbial synthesisXiaojing Liu0Kang Zhang1Yidan Sun2Shukang Zhang3Zhenyu Qiu4Tianshun Song5Jingjing Xie6Yuping Wu7Yuhui Chen8State Key Laboratory of Materials‐Oriented Chemical Engineering Nanjing Tech University Nanjing ChinaState Key Laboratory of Materials‐Oriented Chemical Engineering Nanjing Tech University Nanjing ChinaState Key Laboratory of Materials‐Oriented Chemical Engineering Nanjing Tech University Nanjing ChinaState Key Laboratory of Materials‐Oriented Chemical Engineering Nanjing Tech University Nanjing ChinaState Key Laboratory of Materials‐Oriented Chemical Engineering Nanjing Tech University Nanjing ChinaState Key Laboratory of Materials‐Oriented Chemical Engineering Nanjing Tech University Nanjing ChinaState Key Laboratory of Materials‐Oriented Chemical Engineering Nanjing Tech University Nanjing ChinaState Key Laboratory of Materials‐Oriented Chemical Engineering Nanjing Tech University Nanjing ChinaState Key Laboratory of Materials‐Oriented Chemical Engineering Nanjing Tech University Nanjing ChinaAbstract Upgrading of atmospheric CO2 into high‐value‐added acetate using renewable electricity via electrocatalysis solely remains a great challenge. Here, inspired by microbial synthesis via biocatalysts, we present a coupled system to produce acetate from CO2 by bridging inorganic electrocatalysis with microbial synthesis through formate intermediates. A 3D Bi2O3@CF integrated electrode with an ice‐sugar gourd shape was fabricated via a straightforward hydrothermal synthesis strategy, wherein Bi2O3 microspheres were decorated on carbon fibers. This ice‐sugar gourd‐shaped architecture endows electrodes with multiple structural advantages, including synergistic contribution, high mass transport capability, high structural stability, and large surface area. Consequently, the resultant Bi2O3@CF exhibited a maximum Faradic efficiency of 92.4% at −1.23 V versus Ag/AgCl for formate generation in 0.5 M KHCO3, exceeding that of Bi2O3/CF prepared using a conventional electrode preparation strategy. Benefiting from the high formate selectivity, unique architecture, and good biocompatibility, the Bi2O3@CF electrode attached with enriched CO2‐fixing electroautotrophs served as a biocathode. As a result, a considerable acetate yield rate of 0.269 ± 0.009 g L−1 day−1 (a total acetate yield of 3.77 ± 0.12 g L−1 during 14‐day operation) was achieved in the electrochemical–microbial system equipped with Bi2O3@CF.https://doi.org/10.1002/sus2.117acetateBi2O3@CFCO2 conversionelectrocatalysis–microbial synthesisformate |
| spellingShingle | Xiaojing Liu Kang Zhang Yidan Sun Shukang Zhang Zhenyu Qiu Tianshun Song Jingjing Xie Yuping Wu Yuhui Chen Upgrading CO2 into acetate on Bi2O3@carbon felt integrated electrode via coupling electrocatalysis with microbial synthesis SusMat acetate Bi2O3@CF CO2 conversion electrocatalysis–microbial synthesis formate |
| title | Upgrading CO2 into acetate on Bi2O3@carbon felt integrated electrode via coupling electrocatalysis with microbial synthesis |
| title_full | Upgrading CO2 into acetate on Bi2O3@carbon felt integrated electrode via coupling electrocatalysis with microbial synthesis |
| title_fullStr | Upgrading CO2 into acetate on Bi2O3@carbon felt integrated electrode via coupling electrocatalysis with microbial synthesis |
| title_full_unstemmed | Upgrading CO2 into acetate on Bi2O3@carbon felt integrated electrode via coupling electrocatalysis with microbial synthesis |
| title_short | Upgrading CO2 into acetate on Bi2O3@carbon felt integrated electrode via coupling electrocatalysis with microbial synthesis |
| title_sort | upgrading co2 into acetate on bi2o3 carbon felt integrated electrode via coupling electrocatalysis with microbial synthesis |
| topic | acetate Bi2O3@CF CO2 conversion electrocatalysis–microbial synthesis formate |
| url | https://doi.org/10.1002/sus2.117 |
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