Electrochemical Reactors for Continuous Decentralized H<sub>2</sub>O<sub>2</sub> Production

Wen, Yichan; Zhang, Ting; Pan, Ziheng; Wang, Tianfu; Yamashita, Hiromi; Qian, Xufang; Zhao, Yixin

doi:10.1002/anie.202205972

Cited by 69 publications

(51 citation statements)

References 163 publications

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“…The ideal production system for H 2 O 2 production is to have enough adsorption sites and allow fast desorption of H 2 O 2 in the reaction system and efficient mass transfer rate. [1,9,26,[188][189][190][191][192][193] (35 mL) in an ice bath (below 5 °C) with the presence of CO 2 gas bubbling at an electric charge of 1.8 C at 3.0 V. Reproduced with permission. [185] Copyright 2016, Wiley.…”

Section: Reactor Configurationmentioning

confidence: 99%

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Versatile Photoelectrocatalysis Strategy Raising Up the Green Production of Hydrogen Peroxide

Zhou

Tan

et al. 2023

Advanced Energy Materials

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H2O2 plays an irreplaceable role in many aspects of human society, such as paper bleaching, medical disinfection, wastewater treatment, organic synthesis, hydrometallurgy and the electronic industry. However, the unsustainability of the current industrial production process of traditional anthraquinone has a serious conflict with the green sustainable development. The photo/electrocatalytic H2O2 production from renewable energy has the advantages of being more economical, low‐carbon and green, and in line with the requirements of energy economy. These catalytic methods of green H2O2 production have played a demonstrative role in the development of many small molecules, contributing to a fundamental understanding of general catalysis and providing a scientific perspective for future new energy cycles. In this review, the authors aim to integrate the reaction process and mechanism of photocatalytic and electrocatalytic H2O2 production, summarize the development and application of photocatalytic and electrocatalytic H2O2 production in recent years, and assess the modern technologies promoted in the process of H2O2 production research, including the development of flux production equipment and reaction coproduction, etc. This review intends to provide a clear logic profile and new directions for the development of H2O2 production, and calls for more researchers to provide more insights into the development of this field.

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Section: Reactor Configurationmentioning

confidence: 99%

Section: Reactor Configurationmentioning

confidence: 99%

Versatile Photoelectrocatalysis Strategy Raising Up the Green Production of Hydrogen Peroxide

Zhou

Tan

et al. 2023

Advanced Energy Materials

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“… Electrochemical production of H 2 O 2 via 2e − ORR using renewable energy is promising from the viewpoint of practical applications for water disinfection and wastewater treatment [ 177 , 178 ]. The green electricity generated from solar and wind farms can realize a more efficient and cleaner onsite H 2 O 2 production [ 20 , 21 ]. Much of the literature about H 2 O 2 production has focused on the cathode, while the anode is relatively neglected.…”

Section: Summary and Perspectivesmentioning

confidence: 99%

“…The research on electrochemical production of H 2 O 2 via a selective 2e − ORR process is an emerging field. Recent intensive studies have led to the development of various promising catalysts, electrodes, and reaction reactors [ 20 , 27 ]. Although extensive review articles regarding tailoring the 4e − ORR pathway to the 2e − ORR pathway for H 2 O 2 production have been reported, the attention paid to the complementary of catalysts with other cell components into an efficient device for H 2 O 2 production is rare.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances of Electrocatalyst and Cell Design for Hydrogen Peroxide Production

et al. 2023

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Electrochemical synthesis of H2O2 via a selective two-electron oxygen reduction reaction has emerged as an attractive alternative to the current energy-consuming anthraquinone process. Herein, the progress on electrocatalysts for H2O2 generation, including noble metal, transition metal-based, and carbon-based materials, is summarized. At first, the design strategies employed to obtain electrocatalysts with high electroactivity and high selectivity are highlighted. Then, the critical roles of the geometry of the electrodes and the type of reactor in striking a balance to boost the H2O2 selectivity and reaction rate are systematically discussed. After that, a potential strategy to combine the complementary properties of the catalysts and the reactor for optimal selectivity and overall yield is illustrated. Finally, the remaining challenges and promising opportunities for high-efficient H2O2 electrochemical production are highlighted for future studies.

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“…[ 2 ] An appealing alternative is the electrochemical approach via the oxygen reduction reaction (ORR), which can be operated at ambient conditions using renewable energy resources with minimal capital investments. [ 3 ] This strategy has been extensively investigated to achieve promising efficiencies by designing novel electrocatalysts based on nanocarbons, [ 4 ] transition metals, [ 5 ] and noble metals. [ 6 ] It is worth mentioning that, owing to the low stability of H 2 O 2 in basic conditions and the lack of efficient anion‐exchange membranes, the production of H 2 O 2 in acidic media is more suitable for practical applications, yet challenging.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Pd Sites in Pure Metallic Aerogels for Efficient Electrocatalytic H₂O₂ Production

et al. 2023

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Decentralized electrochemical production of hydrogen peroxide (H2O2) is an attractive alternative to the industrial anthraquinone process, the application of which is hindered by the lack of high‐performance electrocatalysts in acidic media. Herein, a novel catalyst design strategy is reported to optimize the Pd sites in pure metallic aerogels by tuning their geometric environments and electronic structures. By increasing the Hg content in the Pd–Hg aerogels, the PdPd coordination is gradually diminished, resulting in isolated, single‐atom‐like Pd motifs in the Pd2Hg5 aerogel. Further heterometal doping leads to a series of M–Pd2Hg5 aerogels with an unalterable geometric environment, allowing for sole investigation of the electronic effects. Combining theoretical and experimental analyses, a volcano relationship is obtained for the M–Pd2Hg5 aerogels, demonstrating an effective tunability of the electronic structure of the Pd active sites. The optimized Au–Pd2Hg5 aerogel exhibits an outstanding H2O2 selectivity of 92.8% as well as transferred electron numbers of ≈2.1 in the potential range of 0.0–0.4 VRHE. This work opens a door for designing metallic aerogel electrocatalysts for H2O2 production and highlights the importance of electronic effects in tuning electrocatalytic performances.

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Electrochemical Reactors for Continuous Decentralized H₂O₂ Production

Cited by 69 publications

References 163 publications

Versatile Photoelectrocatalysis Strategy Raising Up the Green Production of Hydrogen Peroxide

Versatile Photoelectrocatalysis Strategy Raising Up the Green Production of Hydrogen Peroxide

Recent Advances of Electrocatalyst and Cell Design for Hydrogen Peroxide Production

Optimizing the Pd Sites in Pure Metallic Aerogels for Efficient Electrocatalytic H₂O₂ Production

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Electrochemical Reactors for Continuous Decentralized H2O2 Production

Cited by 69 publications

References 163 publications

Versatile Photoelectrocatalysis Strategy Raising Up the Green Production of Hydrogen Peroxide

Versatile Photoelectrocatalysis Strategy Raising Up the Green Production of Hydrogen Peroxide

Recent Advances of Electrocatalyst and Cell Design for Hydrogen Peroxide Production

Optimizing the Pd Sites in Pure Metallic Aerogels for Efficient Electrocatalytic H2O2 Production

Contact Info

Product

Resources

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Electrochemical Reactors for Continuous Decentralized H₂O₂ Production

Optimizing the Pd Sites in Pure Metallic Aerogels for Efficient Electrocatalytic H₂O₂ Production