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Water Splitting: Defect‐Engineered Ultrathin δ‐MnO 2 Nanosheet Arrays as Bifunctional Electrodes for Efficient Overall Water Splitting (Adv. Energy Mater. 18/2017)
Author(s) -
Zhao Yunxuan,
Chang Chao,
Teng Fei,
Zhao Yufei,
Chen Guangbo,
Shi Run,
Waterhouse Geoffrey I. N.,
Huang Weifeng,
Zhang Tierui
Publication year - 2017
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201770102
Subject(s) - nanosheet , bifunctional , materials science , water splitting , electrode , oxygen evolution , monolayer , manganese , noble metal , nanotechnology , chemical engineering , metal , inorganic chemistry , electrochemistry , catalysis , metallurgy , chemistry , engineering , biochemistry , photocatalysis
In article number 1700005 , Fei Teng, Tierui Zhang, and co‐workers report a noble‐metal‐free bifunctional electrode consisting of ultrathin manganese dioxide (δ‐MnO 2 ) nanosheet arrays on a nickel foam, exhibiting high performance for HER and OER. The remarkable overall water splitting activity is mainly attributed to the numerous active sites and excellent electrical conductivity of δ‐MnO 2 nanosheets, containing abundant oxygen vacancies and unsaturated Mn 3+ sites due to the near monolayer thickness.