Carbon nanofibers as nanoreactors in the construction of PtCo alloy carbon core-shell structures for highly efficient and stable water splitting

2016 ◽  
Vol 109 ◽  
pp. 162-170 ◽  
Author(s):  
XinRong Liu ◽  
Ming Zhang ◽  
TingTing Yang ◽  
LiNa Wang ◽  
Han Zhu ◽  
...  
Keyword(s):  
Water Splitting ◽  
Carbon Nanofibers ◽  
Shell Structures ◽  
Core Shell ◽  
Highly Efficient ◽  
Carbon Core ◽  
Alloy Carbon ◽  
Ptco Alloy

One-Dimensional TiO2@GaON Core-Shell Nanowires with Controlled Shell Thickness from Atomic Layer Deposition for Stable and Efficient Photoelectrochemical Water Splitting

2019 ◽  
Author(s):  
Jiajia Tao ◽  
Hong-Ping Ma ◽  
Kaiping Yuan ◽  
Yang Gu ◽  
Jianwei Lian ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Band Gap ◽  
Water Splitting ◽  
Atomic Layer ◽  
Photoelectrochemical Water Splitting ◽  
Core Shell ◽  
Photoelectrochemical Performance ◽  
Highly Efficient ◽  
Layer Deposition ◽  
Shell Nanowires

<div>As a promising oxygen evolution reaction semiconductor, TiO2 has been extensively investigated for solar photoelectrochemical water splitting. Here, a highly efficient and stable strategy for rationally preparing GaON cocatalysts on TiO2 by atomic layer deposition is demonstrated, which we show significantly enhances the</div><div>photoelectrochemical performance compared to TiO2-based photoanodes. For TiO2@20 nm-GaON core-shell nanowires a photocurrent density up to 1.10 mA cm-2 (1.23 V vs RHE) under AM 1.5 G irradiation (100 mW cm-2) has been achieved, which is 14 times higher than that of TiO2 NWs. Furthermore, the oxygen vacancy formation on GaON as well as the band gap matching with TiO2 not only provides more active sites for water oxidation but also enhances light absorption to promote interfacial charge separation and migration. Density functional theory studies of model systems of GaON-modified TiO2 confirm the band gap reduction, high reducibility and ability to activate water. The highly efficient and stable systems of TiO2@GaON core-shell nanowires provide a deeper understanding and universal strategy for enhancing photoelectrochemical performance of photoanodes now available. </div>

Cu nanowires shelled with NiFe layered double hydroxide nanosheets as bifunctional electrocatalysts for overall water splitting

2017 ◽  
Vol 10 (8) ◽  
pp. 1820-1827 ◽  
Author(s):  
Luo Yu ◽  
Haiqing Zhou ◽  
Jingying Sun ◽  
Fan Qin ◽  
Fang Yu ◽  
...  
Keyword(s):  
Water Splitting ◽  
Layered Double Hydroxide ◽  
Core Shell ◽  
Cu Nanowires ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Shell Nanostructures ◽  
Bifunctional Electrocatalysts ◽  
Double Hydroxide

3D core–shell nanostructures of few-layer NiFe LDH nanosheets grown on Cu nanowires are fabricated toward highly efficient overall water splitting.

Hierarchical MoS2/Ni3S2 core-shell nanofibers for highly efficient and stable overall-water-splitting in alkaline media

2018 ◽  
Vol 10 ◽  
pp. 214-221 ◽  
Author(s):  
Faze Wang ◽  
Hao Wu ◽  
Hong Sun ◽  
Li Ma ◽  
Wenzhong Shen ◽  
...  
Keyword(s):  
Water Splitting ◽  
Alkaline Media ◽  
Core Shell ◽  
Highly Efficient ◽  
Overall Water Splitting
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