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One Dimensional Segregated Single AU Sites on Step-Rich ZnO Ladder for Ultrasensitive NO 2 Sensors

36 Pages Posted: 23 Jun 2020 Publication Status: Review Complete

See all articles by Zhenggang Xue

Zhenggang Xue

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale

Muyu Yan

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale

Xing Yu

Nanjing Normal University - Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials

Yujing Tong

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale

Huang Zhou

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale

Yafei Zhao

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale

Zhiyuan Wang

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale

Yunshang Zhang

University of Science and Technology of China (USTC) - CAS Key Laboratory of Materials for Energy Conversion

Can Xiong

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale

Xun Hong

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale

Jun Luo

Tianjin University of Technology - Center for Electron Microscopy

Yue Lin

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale

Weixing Huang

University of Science and Technology of China (USTC) - CAS Key Laboratory of Materials for Energy Conversion

Yafei Li

Nanjing Normal University - Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials

Yuen Wu

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale

More...

Abstract

Here we develop a freestanding ladder-like ZnO surface with abundant unsaturated step defects, which could efficiently anchor Au1 sites with one dimensional assembling for the ultrasensitive NO2 detection. The dimension of obtained ZnO hexagonal ladder could be precisely controlled through reasonably regularizing the nucleation and growth rate. Following a layer-by-layer growth mode, the obtained ZnO would adopt the step-rich evolution. These ladder-like structure could provide abundant unsaturated step defects along with their curved edge profiles to serve as susceptible centers to site-selectively immobilize isolated Au1 species (Au1-ZnO). The obtained Au1-ZnO catalysts exhibit an outstanding NO2 sensing response (12.6 to 300 ppb) at a low operating temperature (150 °C). The proposed step-induced strategy will broaden the rational design of special sites-trapped supported metal catalysis for gas sensors.

Keywords: crystal growth, step defects, single site catalysts, gas sensor

Suggested Citation

Xue, Zhenggang and Yan, Muyu and Yu, Xing and Tong, Yujing and Zhou, Huang and Zhao, Yafei and Wang, Zhiyuan and Zhang, Yunshang and Xiong, Can and Hong, Xun and Luo, Jun and Lin, Yue and Huang, Weixing and Li, Yafei and Wu, Yuen, One Dimensional Segregated Single AU Sites on Step-Rich ZnO Ladder for Ultrasensitive NO 2 Sensors. Available at SSRN: https://ssrn.com/abstract=3614130 or http://dx.doi.org/10.2139/ssrn.3614130
This is a paper under consideration at Cell Press and has not been peer-reviewed.

Zhenggang Xue

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale ( email )

96, Jinzhai Road
Hefei, Anhui 230026
China

Muyu Yan

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale ( email )

96, Jinzhai Road
Hefei, Anhui 230026
China

Xing Yu

Nanjing Normal University - Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials

Ninghai Road 122, Gulou District
Nanjing, Jiangsu 210046
China

Yujing Tong

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale ( email )

96, Jinzhai Road
Hefei, Anhui 230026
China

Huang Zhou

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale

96, Jinzhai Road
Hefei, Anhui 230026
China

Yafei Zhao

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale ( email )

96, Jinzhai Road
Hefei, Anhui 230026
China

Zhiyuan Wang

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale

96, Jinzhai Road
Hefei, Anhui 230026
China

Yunshang Zhang

University of Science and Technology of China (USTC) - CAS Key Laboratory of Materials for Energy Conversion ( email )

96, Jinzhai Road
Hefei, Anhui 230026
China

Can Xiong

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale ( email )

96, Jinzhai Road
Hefei, Anhui 230026
China

Xun Hong

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale ( email )

96, Jinzhai Road
Hefei, Anhui 230026
China

Jun Luo

Tianjin University of Technology - Center for Electron Microscopy

China

Yue Lin

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale

96, Jinzhai Road
Hefei, Anhui 230026
China

Weixing Huang

University of Science and Technology of China (USTC) - CAS Key Laboratory of Materials for Energy Conversion ( email )

96, Jinzhai Road
Hefei, Anhui 230026
China

Yafei Li

Nanjing Normal University - Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials

Ninghai Road 122, Gulou District
Nanjing, Jiangsu 210046
China

Yuen Wu (Contact Author)

University of Science and Technology of China (USTC) - Hefei National Laboratory for Physical Sciences at the Microscale ( email )

96, Jinzhai Road
Hefei, Anhui 230026
China

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