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Facile synthesis of Ni-coated Ni2P for supercapacitor applications.
- Source :
- CrystEngComm; 2013, Vol. 15 Issue 35, p7071-7079, 9p
- Publication Year :
- 2013
-
Abstract
- Ni<subscript>2</subscript>P particles are coated homogenously with amorphous Ni by an electroless plating process. The Ni coating exhibits a nanoflake morphology and has 20–30 nm in thickness after plating for 10 min. As electrochemical capacitor materials, the pseudocapacitor behaviors are investigated by cyclic voltammograms and galvanostatic charge–discharge tests in 2 M LiOH. The Ni-coated Ni<subscript>2</subscript>P delivers high specific capacitances of 581 F g<superscript>−1</superscript> at 1 A g<superscript>−1</superscript> and 464 F g<superscript>−1</superscript> at 40 A g<superscript>−1</superscript>, respectively, and also exhibits superior cycling performance. The specific capacitance can achieve a maximum of 1115 F g<superscript>−1</superscript> at 2 A g<superscript>−1</superscript>, which can still maintain 1029 F g<superscript>−1</superscript> (92.3% capacity retention) after 3000 cycles. The enhanced pseudocapacitive performances are mainly attributed to its flake-like Ni coating which can provide fast ion and electron transfer and large amounts of active sites. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14668033
- Volume :
- 15
- Issue :
- 35
- Database :
- Complementary Index
- Journal :
- CrystEngComm
- Publication Type :
- Academic Journal
- Accession number :
- 100903441
- Full Text :
- https://doi.org/10.1039/c3ce41214h