View in EDS

Self-assembly of graphene oxide and Shewanella oneidensis MR-1 formed a conductive bio-abiotic composite for enhancing microbial electrosynthesis performance.

Saved in:
Bibliographic Details
Title: Self-assembly of graphene oxide and Shewanella oneidensis MR-1 formed a conductive bio-abiotic composite for enhancing microbial electrosynthesis performance.
Authors: Luo, Dan1,2 (AUTHOR), Ding, Hong1,3 (AUTHOR), Guo, Ting4 (AUTHOR), Li, Xiangling1,2 (AUTHOR), Song, Tianshun1,2 (AUTHOR) tshsong@njtech.edu.cn, Xie, Jingjing1,2 (AUTHOR) xiej@njtech.edu.cn
Source: Renewable Energy: An International Journal. Oct2023, Vol. 215, pN.PAG-N.PAG. 1p.
Subject Terms: Shewanella oneidensis, Graphene oxide, Electrosynthesis, Hybrid materials, Hydrogen evolution reactions, Charge exchange
Abstract: Microbial electrosynthesis (MES) is an attractive technology for converting CO 2 into chemicals. In this technique, electrons are acquired either directly or indirectly through H 2 in the cathode. Shewanella oneidensis MR-1 can perform hydrogen evolution reaction via reverse electron transfer at the cathode. In this study, the self-assembly of graphene oxide and S. oneidensis MR-1 formed a conductive bio-abiotic composite as a cathode for MES with Clostridium ljungdahlii , obtaining more biocatalysts for hydrogen evolution and enhancing electron transfer rate. The average H 2 production rate with the conductive bio-abiotic composite was 41.51 ± 2.54 × 102 mol d−1, while the undecorated carbon felt was 12.96 ± 1.09 × 102 mol d−1. Consequently, acetate and butyrate yields were 0.18 g L−1 d−1 and 0.07 g L−1 d−1, which increased by 2.1 and 1.7 times those of the control, respectively. This work provides new opportunities for constructing a highly efficient cathode via biotic-abiotic hybrid composite for improving MES performance. [ABSTRACT FROM AUTHOR]
Copyright of Renewable Energy: An International Journal is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: GreenFILE
Description
Abstract:Microbial electrosynthesis (MES) is an attractive technology for converting CO 2 into chemicals. In this technique, electrons are acquired either directly or indirectly through H 2 in the cathode. Shewanella oneidensis MR-1 can perform hydrogen evolution reaction via reverse electron transfer at the cathode. In this study, the self-assembly of graphene oxide and S. oneidensis MR-1 formed a conductive bio-abiotic composite as a cathode for MES with Clostridium ljungdahlii , obtaining more biocatalysts for hydrogen evolution and enhancing electron transfer rate. The average H 2 production rate with the conductive bio-abiotic composite was 41.51 ± 2.54 × 102 mol d−1, while the undecorated carbon felt was 12.96 ± 1.09 × 102 mol d−1. Consequently, acetate and butyrate yields were 0.18 g L−1 d−1 and 0.07 g L−1 d−1, which increased by 2.1 and 1.7 times those of the control, respectively. This work provides new opportunities for constructing a highly efficient cathode via biotic-abiotic hybrid composite for improving MES performance. [ABSTRACT FROM AUTHOR]
ISSN:09601481
DOI:10.1016/j.renene.2023.119018