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Ionomer adsorption governs coverage structure: interfacial engineering of fuel cell electrodes toward high-efficiency proton/oxygen transport AITranslate

School of Automotive and Energy Engineering, Tongji University, Shanghai 201804, China
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Publisher: Youke Publish Co., Ltd.
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Abstract AITranslate

The ionomer coating structure on the catalyst surface critically determines the performance and durability of proton exchange membrane fuel cell (PEMFC) electrodes. Conventional fabrication often yields non‑uniform overlayers, increasing oxygen transport resistance, blocking active sites, and accelerating interfacial degradation. Advancing from random deposition to controlled coating structure is therefore a key objective. Ionomer adsorption is governed by its intrinsic properties, support characteristics, and catalyst morphology. In liquid environments, adsorption involves backbone hydrophobicity and side‑chain chemical bonding, with the latter dominating the final configuration. Solvent composition, particularly water content, modulates dispersion, and adsorption behavior. Optimization strategies focus on two main approaches: suppressing detrimental adsorption (e.g., by tailoring support porosity or using additives like ionic liquids) and constructing favorable mass‑transport pathways (e.g., by designing ionomers with cyclic/porous structures or engineering porous overlayers). Rational design of ionomer properties, interface regulation, and integration of these strategies can synergistically enhance proton conduction, mass transport, and stability, laying a foundation for high‑performance, durable fuel cell electrodes.

KeyWords AITranslate

ionomer adsorption ionomer coating structure mass transport PEMFC proton conduction

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Basic Information:

DOI:10.23919/CHAIN.2026.000012

Chinese Library Classification Number:

Citation Information:

The ionomer coating structure on the catalyst surface critically determines the performance and durability of proton exchange membrane fuel cell (PEMFC) electrodes. Conventional fabrication often yields non‑uniform overlayers, increasing oxygen transport resistance, blocking active sites, and accelerating interfacial degradation. Advancing from random deposition to controlled coating structure is therefore a key objective. Ionomer adsorption is governed by its intrinsic properties, support characteristics, and catalyst morphology. In liquid environments, adsorption involves backbone hydrophobicity and side‑chain chemical bonding, with the latter dominating the final configuration. Solvent composition, particularly water content, modulates dispersion, and adsorption behavior. Optimization strategies focus on two main approaches: suppressing detrimental adsorption (e.g., by tailoring support porosity or using additives like ionic liquids) and constructing favorable mass‑transport pathways (e.g., by designing ionomers with cyclic/porous structures or engineering porous overlayers). Rational design of ionomer properties, interface regulation, and integration of these strategies can synergistically enhance proton conduction, mass transport, and stability, laying a foundation for high‑performance, durable fuel cell electrodes.

quote

GB/T 7714-2015 [1] Daozeng Yang, Zhongzheng Huang, Wei Xu, et al. Ionomer adsorption governs coverage structure: interfacial engineering of fuel cell electrodes toward high-efficiency proton/oxygen transport[J]. Chain, 2026, 3(2): 117-151. DOI:10.23919/CHAIN.2026.000012.
MLA [1] Daozeng Yang, et al., "Ionomer adsorption governs coverage structure: interfacial engineering of fuel cell electrodes toward high-efficiency proton/oxygen transport." Chain, vol. 3, no. 2, 2026, pp. 117-151, https://doi.org/10.23919/CHAIN.2026.000012.
APA [1] Daozeng Yang, Zhongzheng Huang, Wei Xu, Weibo Zheng, Jue Wang, Daijun Yang, Pingwen Ming, & Bing Li. (2026). Ionomer adsorption governs coverage structure: interfacial engineering of fuel cell electrodes toward high-efficiency proton/oxygen transport. Chain, 3(2), 117-151. https://doi.org/10.23919/CHAIN.2026.000012
IEEE [1] Daozeng Yang, Zhongzheng Huang, Wei Xu, Weibo Zheng, Jue Wang, Daijun Yang, Pingwen Ming, and Bing Li, "Ionomer adsorption governs coverage structure: interfacial engineering of fuel cell electrodes toward high-efficiency proton/oxygen transport," Chain, vol. 3, no. 2, pp. 117-151, 2026, doi: 10.23919/CHAIN.2026.000012. keywords: {ionomer adsorption;ionomer coating structure;mass transport;PEMFC;proton conduction}