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Interface Engineering with Ultralow Ruthenium Loading for Efficient Water Splitting
Pei, Y; Guo, SK; Ju, QJ; Li, ZC; Zhuang, PY; Ma, RG; Hu, YF; Zhu, YF; Yang, MH; Zhou, Y; Shen, JF; Wang, JC
2020-08-13
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Issue32Pages:36177
SubtypeArticle
AbstractDeveloping high-performance and cost-effective bifunctional electrocatalysts for water splitting is the key to large-scale hydrogen production. How to achieve higher performance with a lower amount of noble metal is still a major challenge. Herein, using a facile wet-chemistry strategy, we report the ultralow amount loading of ruthenium (Ru) on porous nickel foam (NF) as a highly efficient bifunctional electrocatalyst for water splitting. Theoretical simulations reveal that the coupling effect of Ru and Ni can significantly reduce the d-band center of the composite. The Ru-modified NF exhibits a very high level of HER activity with only 0.3 wt% of Ru, far surpassing commercial Pt/C. It only requires an extremely low overpotential (eta(10)) of 10 mV to achieve a current density of 10 mA cm(-2). in alkaline solution and a quite low Tafel slope of 34 mV dec(-1). This catalyst also shows remarkable performance for overall water splitting with a low voltage of 1.56 V at 10 mA cm(-2). These findings indicate the potential of this material in water-alkali electrolyzers, providing a new approach for fabrication of low-cost advanced electrocatalysts.
DOI10.1021/acsami.0c09593
WOS KeywordNANOSHEET ARRAYS ; HYDROGEN ; ELECTROCATALYSTS ; RU ; CATALYST ; CARBON ; OXYGEN
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science
PublisherAMER CHEMICAL SOC
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27836
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Pei, Y,Guo, SK,Ju, QJ,et al. Interface Engineering with Ultralow Ruthenium Loading for Efficient Water Splitting[J]. ACS APPLIED MATERIALS & INTERFACES,2020(32):36177.
APA Pei, Y.,Guo, SK.,Ju, QJ.,Li, ZC.,Zhuang, PY.,...&Wang, JC.(2020).Interface Engineering with Ultralow Ruthenium Loading for Efficient Water Splitting.ACS APPLIED MATERIALS & INTERFACES(32),36177.
MLA Pei, Y,et al."Interface Engineering with Ultralow Ruthenium Loading for Efficient Water Splitting".ACS APPLIED MATERIALS & INTERFACES .32(2020):36177.
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