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243 results on '"Tang, Jiaoning"'

2. One-step synthesis of mesoporous Cobalt sulfides (CoSx) on the metal substrate as an efficient bifunctional electrode for overall water splitting

Author

Bian, Haidong, Chen, Tongyuan, Chen, Zhixuan, Li, Zebiao, Du, Peng, Zhou, Binbin, Zeng, Xierong, Tang, Jiaoning, and Liu, Chen

Subjects
Physics - Applied Physics, Condensed Matter - Materials Science
Abstract

Electrocatalysts based on transition metal sulfides are drawing accelerating concerns in renewable energy research because of their intrinsically excellent activities towards both hydrogen evolution reaction and oxygen evolution reaction. To date, considerable efforts are made to improve the performance of these catalysts, but ignoring the improper synthesis strategy would incur additional cost to the catalyst. Herein, a convenient, one-step anodization method is developed for fast construction of cobalt sulfides. Without any high-temperature or long-time treatment, mesoporous CoSx is self-grown on the metal substrate in minutes. As a result, as-anodic CoSx requires overpotentials of 102 mV for HER and 284 mV for OER to achieve a current density of 10 mA m-2 in alkaline solution. Moreover, the tandem bifunctional as-anodic CoSx exhibits a required cell voltage of 1.64 V for overall water splitting in alkaline solution, exceeding most of the documented Co-based electrocatalysts., Comment: 24 pages, 6 figures

Published
2021

3. Nucleation and crystal growth control for scalable solution-processed organic–inorganic hybrid perovskite solar cells

Author

Hu, Hanlin, Singh, Mriganka, Wan, Xuejuan, Tang, Jiaoning, Chu, Chih-Wei, and Li, Gang

Subjects
Macromolecular and Materials Chemistry, Materials Engineering, Interdisciplinary Engineering
Abstract

In this review, we provide an in-depth overview of perovskite film formation mechanism and highlight the important role of nucleation/crystal growth in perovskite photovoltaics by using scalable solution deposition techniques.

Published
2020

23. Facile topochemically prepared hierarchical Ni–Fe LDH nanoflowers for the electrochemical oxygen elution reaction.

Author

Liu, Zairan, Yang, Yifei, Tang, Jiaoning, and Deng, Yuanming

Subjects
OXYGEN evolution reactions, HYDROGEN evolution reactions, LAYERED double hydroxides, OXYGEN
Abstract

Here we report a simple topochemical method to prepare Ni–Fe layered double hydroxide (LDH). Ni(II)Fe(II) hydroxide was prepared via coprecipitation of Ni2+ and Fe2+ by NH4HCO3 under anaerobic conditions at room temperature. Ni–Fe LDH was obtained via oxidation intercalation by exposing the precipitate to air. The structure of the LDH was characterized and the performance in the electrochemical oxygen elution reaction (OER) was determined. Residual Fe(II) was observed by XPS due to incomplete oxidation, resulting in Fe replacing the Ni site in the LDH. It is found that LDH embedded with both Fe–O–Fe and Ni–O–Fe moieties is beneficial to the OER in terms of a low overpotential (240 mV at 10 mA cm−2), small Tafel slope (25 mV dec−1) and high electrochemical stability. [ABSTRACT FROM AUTHOR]

Published
2023
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38. In‐Situ Intermolecular Interaction in Composite Polymer Electrolyte for Ultralong Life Quasi‐Solid‐State Lithium Metal Batteries

Author

He, Kangqiang, primary, Cheng, Samson Ho‐Sum, additional, Hu, Jieying, additional, Zhang, Yangqian, additional, Yang, Huiwen, additional, Liu, Yingying, additional, Liao, Wenchao, additional, Chen, Dazhu, additional, Liao, Chengzhu, additional, Cheng, Xin, additional, Lu, Zhouguang, additional, He, Jun, additional, Tang, Jiaoning, additional, Li, Robert K. Y., additional, and Liu, Chen, additional

Published
2021
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