A novel hydrogen-sensitive sensor based on Pd nanorings/TNTs composite structure

Xiongbang Wei; Xiaohui Yang; Tao Wu; Shuanghong Wu; Weizhi Li; Xiaohui Wang; Zhi Chen

doi:10.1016/j.ijhydene.2017.07.167

A novel hydrogen-sensitive sensor based on Pd nanorings/TNTs composite structure

Xiongbang Wei, Xiaohui Yang, Tao Wu, Shuanghong Wu, Weizhi Li, Xiaohui Wang, Zhi Chen

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Hydrogen sensors with a novel composite structure comprised of Pd nanorings distributed on TiO₂ nanotube arrays were developed and tested. Effect of the TiO₂ nanotube diameter size, Pd nanorings thickness on the sensors' hydrogen response characteristics were investigated. Time dependence of resistance of the Pd nanorings/TNTs composite structure on various hydrogen concentrations was also carried out and demonstrated good room temperature hydrogen sensitive characteristics. Optimized experiments demonstrated that the hydrogen sensor composed of 25 nm-thickness Pd nanorings distributed on the 77 nm-diameter size TiO₂ nanotube showed a fast response time (3.8 s) and high sensitivity (92.05%) at 0.8 vol% H₂. A hydrogen sensitive characteristics model is proposed and the Pd nanorings' important role in the hydrogen sensitive mechanisms is described. The hydrogen sensor's excellent hydrogen sensitive characteristics is ascribed to the Pd nanorings' quick and continual formation and breakage of multiple passages due to absorption and desorption of hydrogen atoms.

Original language	English
Pages (from-to)	24580-24586
Number of pages	7
Journal	International Journal of Hydrogen Energy
Volume	42
Issue number	38
DOIs	https://doi.org/10.1016/j.ijhydene.2017.07.167
State	Published - 2017

Bibliographical note

Funding Information:
This work was supported by National Natural Science Foundation of China under Grant Nos. 61474016 and 61405026, 61405025, 61371046.

Publisher Copyright:
© 2017 Hydrogen Energy Publications LLC

Keywords

Composite structure
Hydrogen sensor
Pd nanorings
TiO nanotube arrays

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijhydene.2017.07.167

Cite this

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title = "A novel hydrogen-sensitive sensor based on Pd nanorings/TNTs composite structure",

abstract = "Hydrogen sensors with a novel composite structure comprised of Pd nanorings distributed on TiO2 nanotube arrays were developed and tested. Effect of the TiO2 nanotube diameter size, Pd nanorings thickness on the sensors' hydrogen response characteristics were investigated. Time dependence of resistance of the Pd nanorings/TNTs composite structure on various hydrogen concentrations was also carried out and demonstrated good room temperature hydrogen sensitive characteristics. Optimized experiments demonstrated that the hydrogen sensor composed of 25 nm-thickness Pd nanorings distributed on the 77 nm-diameter size TiO2 nanotube showed a fast response time (3.8 s) and high sensitivity (92.05%) at 0.8 vol% H2. A hydrogen sensitive characteristics model is proposed and the Pd nanorings' important role in the hydrogen sensitive mechanisms is described. The hydrogen sensor's excellent hydrogen sensitive characteristics is ascribed to the Pd nanorings' quick and continual formation and breakage of multiple passages due to absorption and desorption of hydrogen atoms.",

keywords = "Composite structure, Hydrogen sensor, Pd nanorings, TiO nanotube arrays",

author = "Xiongbang Wei and Xiaohui Yang and Tao Wu and Shuanghong Wu and Weizhi Li and Xiaohui Wang and Zhi Chen",

note = "Funding Information: This work was supported by National Natural Science Foundation of China under Grant Nos. 61474016 and 61405026, 61405025, 61371046. Publisher Copyright: {\textcopyright} 2017 Hydrogen Energy Publications LLC",

year = "2017",

doi = "10.1016/j.ijhydene.2017.07.167",

language = "English",

volume = "42",

pages = "24580--24586",

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T1 - A novel hydrogen-sensitive sensor based on Pd nanorings/TNTs composite structure

AU - Wei, Xiongbang

AU - Yang, Xiaohui

AU - Wu, Tao

AU - Wu, Shuanghong

AU - Li, Weizhi

AU - Wang, Xiaohui

AU - Chen, Zhi

N1 - Funding Information: This work was supported by National Natural Science Foundation of China under Grant Nos. 61474016 and 61405026, 61405025, 61371046. Publisher Copyright: © 2017 Hydrogen Energy Publications LLC

PY - 2017

Y1 - 2017

N2 - Hydrogen sensors with a novel composite structure comprised of Pd nanorings distributed on TiO2 nanotube arrays were developed and tested. Effect of the TiO2 nanotube diameter size, Pd nanorings thickness on the sensors' hydrogen response characteristics were investigated. Time dependence of resistance of the Pd nanorings/TNTs composite structure on various hydrogen concentrations was also carried out and demonstrated good room temperature hydrogen sensitive characteristics. Optimized experiments demonstrated that the hydrogen sensor composed of 25 nm-thickness Pd nanorings distributed on the 77 nm-diameter size TiO2 nanotube showed a fast response time (3.8 s) and high sensitivity (92.05%) at 0.8 vol% H2. A hydrogen sensitive characteristics model is proposed and the Pd nanorings' important role in the hydrogen sensitive mechanisms is described. The hydrogen sensor's excellent hydrogen sensitive characteristics is ascribed to the Pd nanorings' quick and continual formation and breakage of multiple passages due to absorption and desorption of hydrogen atoms.

AB - Hydrogen sensors with a novel composite structure comprised of Pd nanorings distributed on TiO2 nanotube arrays were developed and tested. Effect of the TiO2 nanotube diameter size, Pd nanorings thickness on the sensors' hydrogen response characteristics were investigated. Time dependence of resistance of the Pd nanorings/TNTs composite structure on various hydrogen concentrations was also carried out and demonstrated good room temperature hydrogen sensitive characteristics. Optimized experiments demonstrated that the hydrogen sensor composed of 25 nm-thickness Pd nanorings distributed on the 77 nm-diameter size TiO2 nanotube showed a fast response time (3.8 s) and high sensitivity (92.05%) at 0.8 vol% H2. A hydrogen sensitive characteristics model is proposed and the Pd nanorings' important role in the hydrogen sensitive mechanisms is described. The hydrogen sensor's excellent hydrogen sensitive characteristics is ascribed to the Pd nanorings' quick and continual formation and breakage of multiple passages due to absorption and desorption of hydrogen atoms.

KW - Composite structure

KW - Hydrogen sensor

KW - Pd nanorings

KW - TiO nanotube arrays

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EP - 24586

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A novel hydrogen-sensitive sensor based on Pd nanorings/TNTs composite structure

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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