TY - JOUR
T1 - Versatile nanoporous bimetallic phosphides towards electrochemical water splitting
AU - Tan, Yongwen
AU - Wang, Hao
AU - Liu, Pan
AU - Shen, Yuhao
AU - Cheng, Chun
AU - Hirata, Akihiko
AU - Fujita, Takeshi
AU - Tang, Zheng
AU - Chen, Mingwei
N1 - Funding Information:
This work was sponsored by JST-CREST "Phase Interface Science for Highly Efficient Energy Utilization", Japan Science and Technology Agency; and World Premier International (WPI) Research Center Initiative for Atoms, Molecules and Materials, MEXT, Japan; and supported by the National Natural Science Foundation of China (Grant No. 11327902, and 51271113).
Publisher Copyright:
© 2016 The Royal Society of Chemistry.
PY - 2016/7
Y1 - 2016/7
N2 - Alloying is an important approach to improving catalytic activities and realizing new functions of heterogeneous catalysts, which has extensively been employed in fabricating noble metal based bimetallic catalysts. However, it is technically unviable in the synthesis of alloyed transition metal compounds, which are emerging as important catalysts for water splitting, in a controllable manner using conventional wet chemical methods. Here we report nanoporous bimetallic (Co1-xFex)2P phosphides with controllable compositions and tuneable porosity, which are fabricated by the combination of metallurgical alloy design and electrochemical etching. By tailoring the Co/Fe ratios and nanoporosity, the bimetallic phosphides exhibit versatile catalytic activities towards HER and OER in acidic and basic electrolytes. As both the cathode and the anode of an electrolyser, nanoporous (Co0.52Fe0.48)2P shows an outstanding performance in water electrolysis, comparable to the commercial electrolyser with paired Pt/C and IrO2 catalysts.
AB - Alloying is an important approach to improving catalytic activities and realizing new functions of heterogeneous catalysts, which has extensively been employed in fabricating noble metal based bimetallic catalysts. However, it is technically unviable in the synthesis of alloyed transition metal compounds, which are emerging as important catalysts for water splitting, in a controllable manner using conventional wet chemical methods. Here we report nanoporous bimetallic (Co1-xFex)2P phosphides with controllable compositions and tuneable porosity, which are fabricated by the combination of metallurgical alloy design and electrochemical etching. By tailoring the Co/Fe ratios and nanoporosity, the bimetallic phosphides exhibit versatile catalytic activities towards HER and OER in acidic and basic electrolytes. As both the cathode and the anode of an electrolyser, nanoporous (Co0.52Fe0.48)2P shows an outstanding performance in water electrolysis, comparable to the commercial electrolyser with paired Pt/C and IrO2 catalysts.
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U2 - 10.1039/c6ee01109h
DO - 10.1039/c6ee01109h
M3 - Article
AN - SCOPUS:84978420293
VL - 9
SP - 2257
EP - 2261
JO - Energy and Environmental Science
JF - Energy and Environmental Science
SN - 1754-5692
IS - 7
ER -