In situ  metal doping during modified anodization synthesis of Nb 2 O 5  with enhanced photoelectrochemical water splitting | Zendy

Hu Chenyan | Zendy; Teoh Wey Yang | Zendy; Ji Shulin | Zendy; Ye Changhui | Zendy; Iwase Akihide | Zendy

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In situ metal doping during modified anodization synthesis of Nb 2 O 5 with enhanced photoelectrochemical water splitting

Author(s) -

Hu Chenyan,

Teoh Wey Yang,

Ji Shulin,

Ye Changhui,

Iwase Akihide

Publication year - 2016

Publication title -

aiche journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.958

H-Index - 167

eISSN - 1547-5905

pISSN - 0001-1541

DOI - 10.1002/aic.15048

Subject(s) - anodizing , dopant , doping , water splitting , materials science , alkali metal , photoelectrochemistry , electrode , metal , analytical chemistry (journal) , nanotechnology , chemical engineering , optoelectronics , electrochemistry , chemistry , metallurgy , catalysis , photocatalysis , aluminium , biochemistry , organic chemistry , chromatography , engineering

Significance A new technique of in situ doping of alkali metal (Li + , Na + , K + , Rb + , and Cs + ) in Nb 2 O 5 was showcased by the modified anodization of Nb foils at high frequency, negative‐to‐positive pulsed voltage. At the optimized dopant concentration and synthesis condition, the doped‐Nb 2 O 5 shows twofold enhancement in photoelectrochemical water splitting efficiencies compared with the undoped Nb 2 O 5 electrode, as a result of improved charge carrier density and enhanced surface charge transfer. © 2015 American Institute of Chemical Engineers AIChE J , 62: 352–358, 2016

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