Ce‐Incorporation‐Induced Crystal and Electronic Structure Regulation of Amorphous NiP Alloy to Boost Hydrogen Evolution in Anion Exchange Membrane Water Electrolysis
アニオン交換膜水電解における水素発生反応を促進するためのCe添加によるアモルファスNiP合金の結晶および電子構造制御 (AI 翻訳)
Yongchao Cheng, Ningbo Fan, Cong Chen, Junxi Shen, Zhihe Wei, Wen Dong, Yang Peng, Ronglei Fan, Mingrong Shen
🤖 gxceed AI 要約
日本語
本論文は、アニオン交換膜水電解（AEMWE）向けにセリウム（Ce）を添加したアモルファスNiP合金触媒を提案。Ce添加により電子構造と結晶構造が最適化され、-1000 mA/cm²の電流密度を255 mVの過電圧で達成。さらに、断続運転下でも優れた安定性を示し、AEMWEセルに組み込んだ場合、1.79 Vの低セル電圧で1000 mA/cm²を達成し、200時間の安定運転を実現。
English
This paper proposes a Ce-incorporated amorphous NiP alloy catalyst for AEMWE. Ce addition optimizes the electronic and crystal structure, achieving -1000 mA/cm² at 255 mV overpotential with excellent stability under intermittent operation. The catalyst enables a low cell voltage of 1.79 V at 1000 mA/cm² and stable operation for 200 h in an AEMWE.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本は水素社会実現に向けてグリーン水素製造技術の開発を推進しており、本研究成果は高効率・長寿命な電解触媒の設計指針として重要な示唆を与える。特に変動再エネ対応の安定性評価は実用化に向けて価値が高い。
In the global GX context
This work contributes to global GX by advancing green hydrogen production via AEMWE, a key technology for decarbonizing hard-to-abate sectors. The Ce-incorporation strategy offers a novel approach to designing high-performance, durable catalysts that can withstand intermittent renewable energy inputs, addressing major barriers to large-scale hydrogen deployment.
👥 読者別の含意
🔬研究者:Provides a new material design strategy (Ce incorporation) for amorphous NiP catalysts, with mechanistic insights into crystal and electronic structure optimization for HER.
🏢実務担当者:Demonstrates a practical catalyst that achieves industrial current densities and long-term stability in AEMWE, relevant for electrolyzer manufacturers.
🏛政策担当者:Supports the case for investment in AEMWE technology as a viable green hydrogen production route, especially under fluctuating renewable energy conditions.
📄 Abstract（原文）
Anion exchange membrane water electrolysis (AEMWE) driven by intermittent renewable energy is one of the optimal solutions for producing green hydrogen gas; however, its further development is limited by highly active and long‐lived hydrogen evolution reaction (HER) catalysts. Herein, a cerium (Ce) incorporated amorphous NiP alloy grown on nickel foam is proposed to meet these challenges, which shows an industrial‐level current density of −1000 mA/cm 2 under 255 mV overpotential and maintains excellent stability under intermittent start‐shutdown operation for 10k cycles in 1 M KOH. The experimental results reveal that the incorporation of Ce can optimize the electronic structure and endow appropriate OH binding energy during HER, thereby significantly accelerating HER kinetics. Moreover, the optimization of NiP crystal structure induced by Ce incorporation can adjust the surface microstructure and release the interfacial stress between the catalytic layer and substrate, resulting in accelerated charge and mass transfer and enhanced stability during the HER process. When integrated into an AEMWE, the optimized NiCeP catalyst displays a low cell voltage of 1.79 V at 1000 mA/cm 2 and maintains stable operation up to 200 h under industrial conditions. This work highlights the importance of modification in the crystal and electronic structure of catalysts in advancing AEMWE under fluctuating renewable energy driving conditions.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1002/adsc.70461first seen 2026-05-15 20:12:33
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