Vertically-aligned growth of CuAl-layered double oxides on reduced graphene oxide for hybrid capacitive deionization with superior performance

2020 ◽  
Vol 7 (3) ◽  
pp. 764-772 ◽  
Author(s):  
Wen Xi ◽  
Haibo Li

Designing vertically-aligned CuAl-layered double oxide grown on reduced graphene oxide for capacitive desalination with high capacity and long cycling life.

2016 ◽  
Vol 4 (30) ◽  
pp. 11800-11811 ◽  
Author(s):  
Dezhi Kong ◽  
Chuanwei Cheng ◽  
Ye Wang ◽  
Bo Liu ◽  
Zhixiang Huang ◽  
...  

α-Fe2O3 nanorod/reduced graphene oxide nanosheet composites are fabricated using a facile and scalable seed-assisted hydrothermal growth route and further investigated as superior anodes for both lithium-ion and sodium-ion batteries with high capacity and long-cycling life.


Author(s):  
Kaiming Guo ◽  
Firdoz Shaik ◽  
Jine Yang ◽  
Bin Jiang

Abstract Water splitting is considered as a potential sustainable and green technology for producing mass hydrogen and oxygen. A cost-effective self-supported stable electrocatalyst with excellent electrocatalytic performance in a wide pH range is greatly required for water splitting. This work reports on the synthesis and anchoring of Fe1CoxNiyP nanoparticles on vertically aligned reduced graphene oxide array (VrGO) via electroless plating. The catalytic activity of Fe1CoxNiyP nanoparticles is tuned finely by tailoring the cationic ratio of Co and Ni. Fe1Co2Ni1P/VrGO exhibits the lowest overpotential (58 and 110 mV) at 10 mA cm−2 and lowest tafel slope (31 and 33 mV dec−1) for hydrogen evolution reaction in 1.0 M KOH and 0.5 M H2SO4 respectively. Fe1Co1Ni2P/VrGO exhibits the lowest overpotential (173 mV) at 10 mA cm−2 with lowest tafel slope (47 mV dec-1) for oxygen evolution reaction. The enhanced performance of the electrocatalyst is attributed to improved electrical conductivity, synergistic effects and beneficial electronic states caused by the appropriate atomic ratio of Co and Ni in the bifunctional electrocatalyst. This study helps to explore the effect of variable cationic ratio in the cost-effective ternary iron group metal phosphides electrocatalysts to achieve enhanced electrocatalytic performance for water splitting in a wide pH range.


Small ◽  
2018 ◽  
Vol 14 (51) ◽  
pp. 1870251 ◽  
Author(s):  
Jasmin Smajic ◽  
Amira Alazmi ◽  
Nitinkumar Batra ◽  
Tamilarasan Palanisamy ◽  
Dalaver H. Anjum ◽  
...  

2017 ◽  
Vol 41 (21) ◽  
pp. 12589-12595 ◽  
Author(s):  
M. R. Sovizi ◽  
M. R. Yaftian ◽  
S. T. Seyyedin

Reduced graphene oxide@sulfur nanocomposite as a high-capacity host matrix was prepared and characterized for advanced lithium–sulfur batteries.


2020 ◽  
Vol 30 ◽  
pp. 101427 ◽  
Author(s):  
Le-Qing Fan ◽  
Jian-Ling Huang ◽  
Yong-Lan Wang ◽  
Cheng-Long Geng ◽  
Si-Jia Sun ◽  
...  

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