Innovative Dual-Compartment Flow Reactor Coupled with a Gas Diffusion Electrode for in Situ Generation of H                         2                         O                         2

Peipei Ding; Lele Cui; Dan Li; Wenheng Jing

doi:10.1021/acs.iecr.9b00358

Innovative Dual-Compartment Flow Reactor Coupled with a Gas Diffusion Electrode for in Situ Generation of H ₂ O ₂

Peipei Ding, Lele Cui, Dan Li, Wenheng Jing

College of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

A novel electrochemical membrane reactor integrated with a gas diffusion cathode (GDE) is proposed to improve oxygen utilization and energy efficiency for hydrogen peroxide (H ₂ O ₂ ) electrogeneration. The limit of the oxygen reduction reaction was broken in the presence of the gas diffusion layer via the beneficial use of the GDE. The pore structure and surface property of the GDE were carefully adjusted to obtain low-resistance gas transport channels. The effects of oxygen flow rate on electrogeneration of H ₂ O ₂ were assessed, and the role of GDE in the improved system was elucidated in comparison to the traditional system. At a polytetrafluoroethylene content of 25% for the catalytic layer of the GDE, the maximum oxygen utilization efficiency was enhanced to 7.4% and the accumulated concentration of H ₂ O ₂ reached 1230.0 mg/L, with a current efficiency up to 88.1%; energy consumption was reduced to 11.6 kWh/kg.

Original language	English
Pages (from-to)	6925-6932
Number of pages	8
Journal	Industrial and Engineering Chemistry Research
Volume	58
Issue number	16
DOIs	https://doi.org/10.1021/acs.iecr.9b00358
State	Published - 24 Apr 2019

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Ding, P., Cui, L., Li, D., & Jing, W. (2019). Innovative Dual-Compartment Flow Reactor Coupled with a Gas Diffusion Electrode for in Situ Generation of H ₂ O ₂ Industrial and Engineering Chemistry Research, 58(16), 6925-6932. https://doi.org/10.1021/acs.iecr.9b00358

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title = " Innovative Dual-Compartment Flow Reactor Coupled with a Gas Diffusion Electrode for in Situ Generation of H 2 O 2 ",

abstract = " A novel electrochemical membrane reactor integrated with a gas diffusion cathode (GDE) is proposed to improve oxygen utilization and energy efficiency for hydrogen peroxide (H 2 O 2 ) electrogeneration. The limit of the oxygen reduction reaction was broken in the presence of the gas diffusion layer via the beneficial use of the GDE. The pore structure and surface property of the GDE were carefully adjusted to obtain low-resistance gas transport channels. The effects of oxygen flow rate on electrogeneration of H 2 O 2 were assessed, and the role of GDE in the improved system was elucidated in comparison to the traditional system. At a polytetrafluoroethylene content of 25% for the catalytic layer of the GDE, the maximum oxygen utilization efficiency was enhanced to 7.4% and the accumulated concentration of H 2 O 2 reached 1230.0 mg/L, with a current efficiency up to 88.1%; energy consumption was reduced to 11.6 kWh/kg.",

author = "Peipei Ding and Lele Cui and Dan Li and Wenheng Jing",

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Ding, P, Cui, L, Li, D & Jing, W 2019, ' Innovative Dual-Compartment Flow Reactor Coupled with a Gas Diffusion Electrode for in Situ Generation of H ₂ O ₂ ', Industrial and Engineering Chemistry Research, vol. 58, no. 16, pp. 6925-6932. https://doi.org/10.1021/acs.iecr.9b00358

Innovative Dual-Compartment Flow Reactor Coupled with a Gas Diffusion Electrode for in Situ Generation of H ₂ O ₂ . / Ding, Peipei; Cui, Lele; Li, Dan et al.
In: Industrial and Engineering Chemistry Research, Vol. 58, No. 16, 24.04.2019, p. 6925-6932.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Innovative Dual-Compartment Flow Reactor Coupled with a Gas Diffusion Electrode for in Situ Generation of H 2 O 2

AU - Ding, Peipei

AU - Cui, Lele

AU - Li, Dan

AU - Jing, Wenheng

PY - 2019/4/24

Y1 - 2019/4/24

N2 - A novel electrochemical membrane reactor integrated with a gas diffusion cathode (GDE) is proposed to improve oxygen utilization and energy efficiency for hydrogen peroxide (H 2 O 2 ) electrogeneration. The limit of the oxygen reduction reaction was broken in the presence of the gas diffusion layer via the beneficial use of the GDE. The pore structure and surface property of the GDE were carefully adjusted to obtain low-resistance gas transport channels. The effects of oxygen flow rate on electrogeneration of H 2 O 2 were assessed, and the role of GDE in the improved system was elucidated in comparison to the traditional system. At a polytetrafluoroethylene content of 25% for the catalytic layer of the GDE, the maximum oxygen utilization efficiency was enhanced to 7.4% and the accumulated concentration of H 2 O 2 reached 1230.0 mg/L, with a current efficiency up to 88.1%; energy consumption was reduced to 11.6 kWh/kg.

AB - A novel electrochemical membrane reactor integrated with a gas diffusion cathode (GDE) is proposed to improve oxygen utilization and energy efficiency for hydrogen peroxide (H 2 O 2 ) electrogeneration. The limit of the oxygen reduction reaction was broken in the presence of the gas diffusion layer via the beneficial use of the GDE. The pore structure and surface property of the GDE were carefully adjusted to obtain low-resistance gas transport channels. The effects of oxygen flow rate on electrogeneration of H 2 O 2 were assessed, and the role of GDE in the improved system was elucidated in comparison to the traditional system. At a polytetrafluoroethylene content of 25% for the catalytic layer of the GDE, the maximum oxygen utilization efficiency was enhanced to 7.4% and the accumulated concentration of H 2 O 2 reached 1230.0 mg/L, with a current efficiency up to 88.1%; energy consumption was reduced to 11.6 kWh/kg.

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SN - 0888-5885

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Innovative Dual-Compartment Flow Reactor Coupled with a Gas Diffusion Electrode for in Situ Generation of H ₂ O ₂

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