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Review
. 2022 Aug 26;61(35):e202205972.
doi: 10.1002/anie.202205972. Epub 2022 Jul 25.

Electrochemical Reactors for Continuous Decentralized H2 O2 Production

Yichan Wen  1 , Ting Zhang  1 , Jianying Wang  1 , Zhelun Pan  1 , Tianfu Wang  1 , Hiromi Yamashita  2 , Xufang Qian  1 , Yixin Zhao  1
Affiliations
Review

Electrochemical Reactors for Continuous Decentralized H2 O2 Production

Yichan Wen et al. Angew Chem Int Ed Engl. .

Abstract

The global utilization of H2 O2 is currently around 4 million tons per year and is expected to continue to increase in the future. H2 O2 is mainly produced by the anthraquinone process, which involves multiple steps in terms of alkylanthraquinone hydrogenation/oxidation in organic solvents and liquid-liquid extraction of H2 O2 . The energy-intensive and environmentally unfriendly anthraquinone process does not meet the requirements of sustainable and low-carbon development. The electrocatalytic two-electron (2 e- ) oxygen reduction reaction (ORR) driven by renewable energy (e.g. solar and wind power) offers a more economical, low-carbon, and greener route to produce H2 O2 . However, continuous and decentralized H2 O2 electrosynthesis still poses many challenges. This Minireview first summarizes the development of devices for H2 O2 electrosynthesis, and then introduces each component, the assembly process, and some optimization strategies.

Keywords: Continuous Production; Electrochemical Reactors; Electrosynthesis; Hydrogen Peroxide; Oxygen Reduction Reaction.

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