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Ruthenium single‐atom modulated Ti3C2Tx MXene for efficient alkaline electrocatalytic hydrogen production

التفاصيل البيبلوغرافية
العنوان: Ruthenium single‐atom modulated Ti3C2Tx MXene for efficient alkaline electrocatalytic hydrogen production
المؤلفون: Yu Zou, Seyedeh Alieh Kazemi, Ge Shi, Junxian Liu, Yuwei Yang, Nicholas M. Bedford, Kaicai Fan, Yiming Xu, Huaiqin Fu, Mengyang Dong, Mohammad Al‐Mamun, Yu Lin Zhong, Huajie Yin, Yun Wang, Porun Liu, Huijun Zhao
المصدر: EcoMat, Vol 5, Iss 1, Pp n/a-n/a (2023)
بيانات النشر: Wiley, 2023.
سنة النشر: 2023
المجموعة: LCC:Renewable energy sources
LCC:Environmental sciences
مصطلحات موضوعية: electrocatalysis, hydrogen evolution reaction, in‐situ characterization, MXene, single atoms, Renewable energy sources, TJ807-830, Environmental sciences, GE1-350
الوصف: Abstract Single‐atoms (SAs) supported on various substrates have emerged as a new form of electrocatalysts for hydrogen evolution reaction (HER). The exfoliated MXenes possess rich defects/vacancies and surface oxygen groups, can be favorably utilized to anchor SAs. Here, we take advantage of the exfoliated Ti3C2Tx to anchor Ru‐SAs on Ti3C2Tx through a wet‐chemistry impregnation process. The obtained RuSA@Ti3C2Tx possesses excellent HER activity, especially under high current densities. Remarkably, RuSA@Ti3C2Tx can readily attain high current densities of 1 and 1.5 A cm−2 at low over potentials of 425.7 and 464.6 mV, respectively, demonstrating its potential for practical applications. The A1g vibration frequency shift of the Raman spectrum is innovatively used to probe the surface OH coverage on Ti3C2Tx, providing critical information for mechanistic studies. The experimental and theoretical studies reveal that the superior HER electrocatalytic activity of RuSA@Ti3C2Tx results from the Ru‐SAs enhanced H2O adsorption and dissociation, and promoted H2 formation.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2567-3173
Relation: https://doaj.org/toc/2567-3173
DOI: 10.1002/eom2.12274
URL الوصول: https://doaj.org/article/e4bc4ce34a444a09b545e18a8ff516c6
رقم الأكسشن: edsdoj.4bc4ce34a444a09b545e18a8ff516c6
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:25673173
DOI:10.1002/eom2.12274