Highly efficient and durable water oxidation in a near-neutral carbonate electrolyte electrocatalyzed by a core–shell structured NiO@Ni–Ci nanosheet array

2017 ◽  
Vol 1 (6) ◽  
pp. 1287-1291 ◽  
Author(s):  
Min Ma ◽  
Yiwei Liu ◽  
Xiao Ma ◽  
Ruixiang Ge ◽  
Fengli Qu ◽  
...  

Core–shell structured NiO@Ni–Ci/CC exhibits superior water oxidation activity, requiring 387 mV overpotential to drive 15 mA cm−2 in 1.0 M K–Ci.

2017 ◽  
Vol 8 (9) ◽  
pp. 6111-6116 ◽  
Author(s):  
Jingqi Guan ◽  
Chunmei Ding ◽  
Ruotian Chen ◽  
Baokun Huang ◽  
Xianwen Zhang ◽  
...  

Ultrasmall CoOx nanoparticles on sulfonated graphite exhibit highly efficient water oxidation activity and can be used for electrochemical and solar water oxidation.


Nanoscale ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 1111-1122 ◽  
Author(s):  
Chunmei Li ◽  
Zhihui Chen ◽  
Weiyong Yuan ◽  
Qing-Hua Xu ◽  
Chang Ming Li

α-Fe2O3@Co3O4 core–shell wormlike nanoarrays were fabricated via in situ growth of Co3O4 on wormlike α-Fe2O3, showing superior photoelectrochemical water oxidation performance.


Nanoscale ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 3121-3128 ◽  
Author(s):  
Can Lu ◽  
Palani R. Jothi ◽  
Thomas Thersleff ◽  
Tetyana M. Budnyak ◽  
Anna Rokicinska ◽  
...  

2D CoB nanosheets and FeB nanoplates were employed as catalysts for WO3 photoanodes. The functionalized photoanodes present meaningfully improved PEC water oxidation performances, exceeding Co-Bi- and Co(OH)x-modified WO3 photoanodes.


2016 ◽  
Vol 52 (100) ◽  
pp. 14470-14473 ◽  
Author(s):  
Chun-Chao Hou ◽  
Chuan-Jun Wang ◽  
Qian-Qian Chen ◽  
Xiao-Jun Lv ◽  
Wen-Fu Fu ◽  
...  

Ultralong Fe(OH)3:Cu(OH)2 core–shell nanowires were facilely grown on an open 3D Cu electrode to function as a highly efficient electrocatalyst for water oxidation.


2019 ◽  
Vol 6 (3) ◽  
pp. 765-774
Author(s):  
Georgia Velegraki ◽  
Ioannis Vamvasakis ◽  
Ioannis T. Papadas ◽  
Sotiris Tsatsos ◽  
Anastasia Pournara ◽  
...  

Mesoporous Ni-implanted CoO nanoparticle assemblies possessing a suitable electronic structure and large mesoporosity deliver highly efficient photocatalytic Cr(vi) reduction and water oxidation activity.


2019 ◽  
Author(s):  
Jiajia Tao ◽  
Hong-Ping Ma ◽  
Kaiping Yuan ◽  
Yang Gu ◽  
Jianwei Lian ◽  
...  

<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>


Author(s):  
Ning Zhang ◽  
Sufen Lin ◽  
Fuchen Wang ◽  
Yongdi Liu ◽  
Jinlong Zhang ◽  
...  

2021 ◽  
Vol 60 (9) ◽  
pp. 6852-6852
Author(s):  
Md Asmaul Hoque ◽  
Abhishek Dutta Chowdhury ◽  
Somnath Maji ◽  
Jordi Benet-Buchholz ◽  
Mehmed Z. Ertem ◽  
...  

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