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Efficient electrochemical production of glucaric acid and H2 via glucose electrolysis.


ABSTRACT: Glucose electrolysis offers a prospect of value-added glucaric acid synthesis and energy-saving hydrogen production from the biomass-based platform molecules. Here we report that nanostructured NiFe oxide (NiFeOx) and nitride (NiFeNx) catalysts, synthesized from NiFe layered double hydroxide nanosheet arrays on three-dimensional Ni foams, demonstrate a high activity and selectivity towards anodic glucose oxidation. The electrolytic cell assembled with these two catalysts can deliver 100?mA?cm-2 at 1.39?V. A faradaic efficiency of 87% and glucaric acid yield of 83% are obtained from the glucose electrolysis, which takes place via a guluronic acid pathway evidenced by in-situ infrared spectroscopy. A rigorous process model combined with a techno-economic analysis shows that the electrochemical reduction of glucose produces glucaric acid at a 54% lower cost than the current chemical approach. This work suggests that glucose electrolysis is an energy-saving and cost-effective approach for H2 production and biomass valorization.

SUBMITTER: Liu WJ 

PROVIDER: S-EPMC6959317 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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Efficient electrochemical production of glucaric acid and H<sub>2</sub> via glucose electrolysis.

Liu Wu-Jun WJ   Xu Zhuoran Z   Zhao Dongting D   Pan Xiao-Qiang XQ   Li Hong-Chao HC   Hu Xiao X   Fan Zhi-Yong ZY   Wang Wei-Kang WK   Zhao Guo-Hua GH   Jin Song S   Huber George W GW   Yu Han-Qing HQ  

Nature communications 20200114 1


Glucose electrolysis offers a prospect of value-added glucaric acid synthesis and energy-saving hydrogen production from the biomass-based platform molecules. Here we report that nanostructured NiFe oxide (NiFeO<sub>x</sub>) and nitride (NiFeN<sub>x</sub>) catalysts, synthesized from NiFe layered double hydroxide nanosheet arrays on three-dimensional Ni foams, demonstrate a high activity and selectivity towards anodic glucose oxidation. The electrolytic cell assembled with these two catalysts ca  ...[more]

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