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المؤلفZhang, Qiting
المؤلفWang, Yuhang
المؤلفWang, Yongcheng
المؤلفAl-Enizi, Abdullah M.
المؤلفElzatahry, Ahmed A.
المؤلفZheng, Gengfeng
تاريخ الإتاحة2021-03-18T10:15:11Z
تاريخ النشر2016
اسم المنشورJournal of Materials Chemistry A
المصدرScopus
الرقم المعياري الدولي للكتاب20507488
معرّف المصادر الموحدhttp://dx.doi.org/10.1039/c6ta00356g
معرّف المصادر الموحدhttp://hdl.handle.net/10576/17920
الملخصInspired by Myriophyllum, a natural plant, we report an efficient electrochemical water splitting device based on hierarchical TiN@Ni3N nanowire arrays. The bifunctional TiN@Ni3N nanowire arrays serve as both hydrogen evolution reaction (HER) and oxygen reaction evolution (OER) catalysts in this device. As a hydrogen evolution catalyst, the TiN@Ni3N nanowire arrays possess an onset overpotential of 15 mV vs. the reversible hydrogen electrode (RHE), a Tafel slope of 42.1 mV dec-1, and an excellent stability of <13% degradation after being operated for 10 h, much better than Pt disks and Ni3N nanosheets in alkaline electrolytes. For oxygen evolution performance, the Myriophyllum-like TiN@Ni3N nanowire arrays exhibit an onset potential of 1.52 V vs. RHE, and a high stability of 72.1% current retention after being measured for 16 h in the potentiostatic mode. Furthermore, a symmetric electrochemical water splitting device was assembled by using the Myriophyllum-like TiN@Ni3N nanowire arrays as two electrodes, possessing a water splitting onset of ?1.57 V with a current retention of 63.8% after 16 h of operation. The Royal Society of Chemistry 2016.
راعي المشروعWe thank the following funding agencies for supporting this work: the National Key Basic Research Program of China (2013CB934104), the Natural Science Foundation of China (21322311 and 21473038), the Science and Technology Commission of Shanghai Municipality (14JC1490500), the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning, and the Collaborative Innovation Center of Chemistry for Energy Materials (2011-iChem). The authors would like to extend their sincere appreciation to the Deanship of Scientific Research at King Saud University for funding the Prolific Research group (PRG-1436-14).
اللغةen
الناشرRoyal Society of Chemistry
الموضوعCatalysts
Electrochemical electrodes
Electrodes
Nanowires
Slope stability
Titanium compounds
Titanium nitride
Alkaline electrolytes
Hydrogen evolution
Hydrogen evolution reactions
Nanowire arrays
Onset potential
Oxygen evolution
Potentiostatics
Reversible hydrogen electrodes
Nickel
العنوانMyriophyllum -like hierarchical TiN@Ni3N nanowire arrays for bifunctional water splitting catalysts
النوعArticle
الصفحات5713-5718
رقم العدد15
رقم المجلد4
dc.accessType Abstract Only


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