成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

ChemicalBook >> journal list >> Chemical Engineering Journal >>article
Chemical Engineering Journal

Chemical Engineering Journal

IF: 13.3
Download PDF

Etching and isolation technique for synthesis of CNTs-encapsulated NiSe2/CoSe2 for supercapacitor applications

Published:12 December 2024 DOI: 10.1016/j.cej.2024.158572
Jiangshan Gao, Yide Hao, Shuyan Lin, Ziming Zhang, Huifang Li, Yan He

Abstract

The microstructure of carbon nanotubes (CNTs) plays a pivotal role in determining their performance as electrode materials. Herein, CNTs encapsulating NiSe2/CoSe2 nanoparticles (CNT@NiCo-Se) are derived from Ni-Co Prussian blue analogue (Ni-Co PBA), and the CNTs possess smaller diameter and larger interlayer spacing due to the “etching and isolation technique” that is adopted to prevent the accumulation of Ni/Co in Ni-Co PBA during the calcination process. CNT@NiCo-Se exhibits a specific capacitance of 105.1?mAh g?1 at a current density of 1 A g?1, which is 375?% higher than that obtained without isolation strategy, which resulted in the microstructure advantages of smaller diameter and larger interlayer spacing. The actual reason is that smaller diameter and larger interlayer spacing correspond to higher charge transfer density and increased the –OH binding energy (OHBE) according to density functional theory (DFT) calculation results. In addition, the assembled asymmetric supercapacitor (ASC) device exhibits a high energy density of 46.3 Wh kg?1 at 801?W kg?1 and a high power density of 8000?W kg?1 at an energy density of 12.0 Wh kg?1, and the initial specific capacitance of 80.4?% can be maintained after 10,000 cycles at 10 A g?1. More importantly, this work provides a novel strategy for microstructure adjustment of CNTs in the field of energy storage and conversion.

Substances (1)

Materials
Procduct Name CAS Molecular Formula Supplier Price
N,N-Dimethylformamide 68-12-2 C3H7NO 1214 suppliers $11.20-$12200.00

Similar articles

IF:2.3

Sol–gel based optically active phenolphthalein encapsulated nanomatrices for sensing application

Journal of Sol-Gel Science and Technology Shumaila Islam, Noriah Bidin,etc Published: 21 April 2016
IF:4.9

Naringin: Nanotechnological Strategies for Potential Pharmaceutical Applications.

Pharmaceutics Soledad Ravetti, Ariel G Garro,etc Published: 7 March 2023
IF:19.3

Drugs for Insomnia beyond Benzodiazepines: Pharmacology, Clinical Applications, and Discovery.

Pharmacological Reviews Tobias Atkin, Stefano Comai,etc Published: 1 April 2018