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Your search keyword '"Zheng, Weitao"' showing total 2 results
Start Over Author "Zheng, Weitao" Topic graphene oxide Publisher wiley-blackwell
2 results on '"Zheng, Weitao"'

1. Hydrothermal reduction of graphene oxide; effect on surface-enhanced Raman scattering.

Author

Zheng, Xianliang, Peng, Yinshan, Yang, Yan, Chen, Jianli, Tian, Hongwei, Cui, Xiaoqiang, and Zheng, Weitao

Subjects
GRAPHENE oxide, CHEMICAL reduction, FLUORESCENCE quenching, SERS spectroscopy, DEOXYGENATION
Abstract

In this article, a green and controllable method was introduced to reduce graphene oxide (GO) via a hydrothermal deoxygenation process. The reduced graphene oxide (RGO) obtained was characterized by atomic force microscopy (AFM), X-ray photoemission spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, UV-Vis absorption spectroscopy, et al. The reduction degree as well as residual chemical components can be adjusted by changing the reaction time and pH conditions. Both GO and RGO were applied as SERS substrates, and their SERS activities were studied and compared. The mechanism on SERS enhancement of GO and RGOs was discussed. Copyright © 2016 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

Published
2017
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2. (EMIm)+(PF6)− Ionic Liquid Unlocks Optimum Energy/Power Density for Architecture of Nanocarbon-Based Dual-Ion Battery.

Author

Shi, Xiaoyuan, Zhang, Wei, Wang, Jiafu, Zheng, Weitao, Huang, Keke, Zhang, Hengbin, Feng, Shouhua, and Chen, Hong

Subjects
ENERGY density, POWER density, IONIC liquids, INTERCALATION reactions, X-ray diffraction, GRAPHITE, GRAPHENE oxide
Abstract

A delicate configuration of dual‐ion battery is proposed to achieve optimum energy/power density. High potential intercalation reaction of positive electrode contributes to high energy density and quick absorption/desorption of negative is beneficial for power density. Such novel designed electrochemical energy storage device enables access to optimum power/energy density. [ABSTRACT FROM AUTHOR]

Published
2016
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