典型文献
Toward stable photoelectrochemical water splitting using NiOOH coated hierarchical nitrogen-doped ZnO-Si nanowires photoanodes
文献摘要：
Photoelectrochemical(PEC)water splitting is regarded as the most promising method to generate"green hydrogen",and zinc oxide(ZnO)has been identified as one of the promising candidates for PEC water splitting owing to its straddling band alignment with the water redox level.However,its PEC perfor-mance is limited due to its wide bandgap and anticipated by photocorrosion in an aqueous medium.In this work,we present strategic improvements in the PEC water splitting performance of ZnO nano-wires(NWs)by nitrogen(N)-doping along with photostability by the core-shell deposition of a NiOOH cocatalyst.Highly crystalline hierarchical ZnO NWs were fabricated on Si NWs(ZnO-Si HNWs)using a metal organic chemical vapor deposition approach.The NWs were then N-doped by annealing in an NH3 atmosphere.The N-doped ZnO-Si HNWs(N:ZnO-Si HNWs)showed enhanced visible light absorp-tion,and suppressed recombination of the photogenerated carriers.As compared to ZnO-Si HNWs(0.045 mA cm-2 at 1.23 V vs RHE),the N:ZnO-Si HNWs(0.34 mA cm-2 at 1.23 V vs RHE)annealed in NH3 ambient for 3 h at 600℃showed 7.5-fold enhancement in the photocurrent density.NiOOH-deposited N:ZnO-Si HNW photoanodes with a photostability of 82.21％over 20000 s showed 10.69-fold higher photocurrent density(0.48 mA cm-2 at 1.23 V vs RHE)than ZnO-Si HNWs.
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中图分类号：
作者姓名：
Indrajit V.Bagal;Maheswari Arunachalam;Ameer Abdullah;Aadil Waseem;Mandar A.Kulkarni;Soon Hyung Kang;Sang-Wan Ryu
作者机构：
Department of Physics,Chonnam National University,Gwangju 61186,Republic of Korea;Department of Chemistry Education,Chonnam National University,Gwangju 61186,Republic of Korea;Optoelectronic Convergence Research Center,Chonnam National University,Gwangju 61186,Republic of Korea
文献出处：
引用格式：
[1]Indrajit V.Bagal;Maheswari Arunachalam;Ameer Abdullah;Aadil Waseem;Mandar A.Kulkarni;Soon Hyung Kang;Sang-Wan Ryu-.Toward stable photoelectrochemical water splitting using NiOOH coated hierarchical nitrogen-doped ZnO-Si nanowires photoanodes)[J].能源化学,2022(08):45-55
A类：
HNWs,HNW
B类：
Toward,stable,photoelectrochemical,water,splitting,using,NiOOH,coated,hierarchical,nitrogen,doped,ZnO,Si,nanowires,photoanodes,Photoelectrochemical,PEC,regarded,most,promising,method,green,hydrogen,zinc,oxide,has,been,identified,one,candidates,owing,its,straddling,alignment,redox,level,However,limited,due,wide,bandgap,anticipated,by,photocorrosion,aqueous,medium,In,this,work,present,strategic,improvements,performance,doping,along,photostability,core,shell,deposition,cocatalyst,Highly,crystalline,were,fabricated,metal,organic,vapor,approach,then,annealing,NH3,atmosphere,showed,enhanced,visible,light,absorp,suppressed,recombination,photogenerated,carriers,compared,mA,RHE,annealed,ambient,fold,enhancement,photocurrent,density,deposited,over,higher,than
AB值：
0.479217
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