Modeling gas-diffusion electrodes for CO2 reduction

文献情報

出版日 2018-06-04

DOI 10.1039/C8CP01319E

インパクトファクター 3.676

著者

Adam Z. Weber

原文を見る

要旨

CO2 reduction conducted in electrochemical cells with planar electrodes immersed in an aqueous electrolyte is severely limited by mass transport across the hydrodynamic boundary layer. This limitation can be minimized by use of vapor-fed, gas-diffusion electrodes (GDEs), enabling current densities that are almost two orders of magnitude greater at the same applied cathode overpotential than what is achievable with planar electrodes in an aqueous electrolyte. The addition of porous cathode layers, however, introduces a number of parameters that need to be tuned in order to optimize the performance of the GDE cell. In this work, we develop a multiphysics model for gas diffusion electrodes for CO2 reduction and used it to investigate the interplay between species transport and electrochemical reaction kinetics. The model demonstrates how the local environment near the catalyst layer, which is a function of the operating conditions, affects cell performance. We also examine the effects of catalyst layer hydrophobicity, loading, porosity, and electrolyte flowrate to help guide experimental design of vapor-fed CO2 reduction cells.

掲載誌

Physical Chemistry Chemical Physics

CiteScore: 5.5

自己引用率: 10.3%

年間論文数: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Modeling gas-diffusion electrodes for CO2 reduction

文献情報

おすすめジャーナル

関連文献

Properties of ionic liquids on Au surfaces: non-conventional anion exchange reactions with carbonate

Direct electrochemistry of an [FeFe]-hydrogenase on a TiO2 Electrode

Novel N,O-Cu(OAc)2 complex catalysed diastereo- and enantioselective 1,4-addition of glycine derivatives to alkylidene malonates

A Zn2GeO4–ethylenediamine hybrid nanoribbon membrane as a recyclable adsorbent for the highly efficient removal of heavy metals from contaminated water

Reverse orthogonal strategy for oligosaccharide synthesis‡§

One-step synthesized silver micro-dendrites used as novel separation mediums and their applications in multi-DNA analysis

Recent advances in hierarchically structured zeolites: synthesis and material performances

Fluorescence sensing of caffeine in water with polysulfonated pyrenes

A highly efficient silver niobium alumina catalyst for the selective catalytic reduction of NO by n-decane

Fused perylenebisimide–carbazole: new ladder chromophores with enhanced third-order nonlinear optical activities

こちらもおすすめ

環戊烷-1,3-二甲酸甲酯はどのように合成されますか？

4-メトキシ-1,2,3-スチアゼ-3,5-ジオンとは何ですか？

プロスタグランジンA2について「に適用される法規ガイドラインは何ですか？'

4-アミノ-1-ナフタレン sulfonic 酸についての物理化学的性質は何ですか？

N-GlcNAc-生物素を取り扱う際の実験室安全事項は何ですか？

3-アミノメチルフローラノピペリジン-1-カルボニル酸テルブチルエステルとは何ですか？

6-溴-1-甲基-1H-ベンゾ[d][1,2,3]三氮唑はどのように合成されますか？

4-硫代尿苷はどのように合成されますか？

ブレインナトリユリックペプチド32ラットとは何ですか？

1-(3-氮杂啶)-4-羟基哌啶双盐酸盐の物理化学的性質は何ですか？

掲載誌

Physical Chemistry Chemical Physics

おすすめ化合物

5,7,8'-Trihydroxy-2',2'-dimethyl-2'H,4H-3,6'-bichromen-4-one

Atosiban Acetate

N-[(1S,2R,4S)-2-Amino-4-(dimethylcarbamoyl)cyclohexyl]-N'-(5-chloro-2-pyridinyl)ethanediamide

Galantamine EP Impurity C (Dihydro Galantamine)

2-Methyl-2-propanyl (3R,5S)-6-chloro-3,5-dihydroxyhexanoate

おすすめサプライヤー