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- Title
Asymmetric Neutral‐alkaline Microbial Electrolysis Cells for Hydrogen Production.
- Authors
Dai, Ling; Xiang, Lijuan; Zhang, Mengtian; Wen, Zhenhai; Xu, Qiuhua; Chen, Kai; Zhao, Zhifeng; Ci, Suqin
- Abstract
The development of highly efficient cathodes for hydrogen production that can operate in a suitable pH condition is a daunting challenge in microbial electrolysis cells (MECs). Herein, an asymmetric neutral‐alkaline double‐chamber microbial electrolysis cells (AMECs) by using conventional carbon brush with microorganism attached as neutral anode and the Ru/CNTs electrode as alkaline cathode, respectively, was proposed. To implement this, a hybrid with ruthenium nanoparticles loaded on conductive carbon nanotubes (Ru/CNTs) was prepared by a reduction deposition method, which exhibited comparable electrocatalytic performance to the expensive benchmark Pt/C catalysts for hydrogen evolution reaction (HER). Compared to the traditional MECs running in symmetric neutral electrolyte, the as‐developed AMEC displayed a higher current density of 17.13 A m−2 and hydrogen production rate of 0.167 m3 m−2 d−1. The present AMEC provides an energy‐saving and cost‐effective process technology for electrolysis H2 generation.
- Subjects
MICROBIAL cells; CARBON nanotubes; HYDROGEN production; PLATINUM nanoparticles; INTERSTITIAL hydrogen generation; HYDROGEN evolution reactions
- Publication
ChemElectroChem, 2022, Vol 9, Issue 7, p1
- ISSN
2196-0216
- Publication type
Article
- DOI
10.1002/celc.202101584