Controllable Distribution of Oxygen Vacancies in Grain Boundaries of p‐Si/TiO 2 Heterojunction Photocathodes for Solar Water Splitting

2020 ◽  
Author(s):  
Huimin Li ◽  
Tuo Wang ◽  
Shanshan Liu ◽  
Zhibin Luo ◽  
Lulu Li ◽  
...  
Keyword(s):  
Grain Boundaries ◽  
Water Splitting ◽  
Oxygen Vacancies ◽  
Solar Water ◽  
Solar Water Splitting

scholarly journals Activating the surface and bulk of hematite photoanodes to improve solar water splitting

2019 ◽  
Vol 10 (44) ◽  
pp. 10436-10444 ◽  
Author(s):  
Hemin Zhang ◽  
Jong Hyun Park ◽  
Woo Jin Byun ◽  
Myoung Hoon Song ◽  
Jae Sung Lee
Keyword(s):  
Water Splitting ◽  
Oxygen Vacancies ◽  
Surface Passivation ◽  
Photoelectrochemical Water Splitting ◽  
Electrochemical Activation ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Waking Up

Waking up the hematite lion: a simple electrochemical activation treatment leads to surface passivation outside and generation of oxygen vacancies inside, which greatly enhances photoelectrochemical water splitting.

Ultrathin NiCo2O4 nanosheets with dual-metal active sites for enhanced solar water splitting of a BiVO4 photoanode

2019 ◽  
Vol 7 (39) ◽  
pp. 22274-22278 ◽  
Author(s):  
Chenchen Feng ◽  
Qi Zhou ◽  
Bin Zheng ◽  
Xiang Cheng ◽  
Yajun Zhang ◽  
...  
Keyword(s):  
Water Splitting ◽  
Water Oxidation ◽  
Active Sites ◽  
Oxygen Vacancies ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Highly Efficient ◽  
Dual Metal ◽  
Nico2o4 Nanosheets ◽  
First Time

Spinel-structured NiCo2O4 nanosheets with dual-metal active sites, an ultrathin structure, and abundant oxygen vacancies were decorated for the first time on a BiVO4 photoanode for highly efficient PEC water oxidation.

New insight into the roles of oxygen vacancies in hematite for solar water splitting

2017 ◽  
Vol 19 (2) ◽  
pp. 1074-1082 ◽  
Author(s):  
Xin Zhao ◽  
Jianyong Feng ◽  
Shi Chen ◽  
Yizhong Huang ◽  
Tze Chien Sum ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Water Splitting ◽  
Oxygen Vacancies ◽  
Active Surface ◽  
Transfer Efficiency ◽  
Surface Species ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Insight Into

Oxygen vacancies have different impacts on the charge transfer efficiency of pristine and Ti-doped hematite through active surface species.

Oxygen Vacancies Engineering of Iron Oxides Films for Solar Water Splitting

2016 ◽  
Vol 120 (14) ◽  
pp. 7482-7490 ◽  
Author(s):  
Maxime Rioult ◽  
Dana Stanescu ◽  
Emiliano Fonda ◽  
Antoine Barbier ◽  
Hélène Magnan
Keyword(s):  
Water Splitting ◽  
Iron Oxides ◽  
Oxygen Vacancies ◽  
Solar Water ◽  
Solar Water Splitting

Modulating oxygen vacancies in Sn-doped hematite film grown on silicon microwires for photoelectrochemical water oxidation

2018 ◽  
Vol 6 (32) ◽  
pp. 15593-15602 ◽  
Author(s):  
Zhongyuan Zhou ◽  
Shaolong Wu ◽  
Linling Qin ◽  
Liang Li ◽  
Liujing Li ◽  
...  
Keyword(s):  
Absorption Spectrum ◽  
Water Splitting ◽  
Water Oxidation ◽  
Oxygen Vacancies ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Silicon Microwires ◽  
Photoelectrochemical Water Oxidation

Dual-absorber photoelectrodes are attractive candidates for solar water splitting due to their broadened absorption spectrum and improved photovoltage compared to single-absorber systems.

Hematite homojunctions without foreign element doping for efficient and stable overall water splitting

RSC Advances ◽  
2016 ◽  
Vol 6 (67) ◽  
pp. 62263-62269 ◽  
Author(s):  
Qing Yu ◽  
Xianguang Meng ◽  
Li Shi ◽  
Guigao Liu ◽  
Peng Li ◽  
...  
Keyword(s):  
Water Splitting ◽  
Oxygen Vacancies ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Overall Water Splitting ◽  
Element Doping

A hematite homojunction is prepared by tuning the density of oxygen vacancies for superior solar water splitting.

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