Abstract
The use of heterojunctions based on Rh-decorated WO3 nanorods is an effective strategy for achieving high-performance gas sensors for volatile organic compounds (VOCs), especially acetone (CH3COCH3). Herein, we successfully fabricated Rh-decorated WO3 nanorods with one-dimensional (1D) structures by glancing angle deposition (GLAD). Interestingly, morphological changes characterized by anomalous surfaces with numerous regions of negative curvature were observed upon decoration of the bare WO3 nanorods with Rh, which were systematically investigated on the basis of impeded surface diffusion and trapping effects. The improvements of gas sensing properties were stepwisely demonstrated by synergistic effects involving transition of Rh, high chemical potential of the negative curvature, primary decomposition at the top side, and highly ordered nanostructures. We are confident that the results provide new insight into the synthesis of effective nanostructures and contribute to a variety of applications including battery, solar water splitting, and sensor devices.
| Original language | English |
|---|---|
| Pages (from-to) | 207-215 |
| Number of pages | 9 |
| Journal | Chemistry of Materials |
| Volume | 31 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2019 Jan 8 |
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ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
- Materials Chemistry
Cite this
Heterojunction Based on Rh-Decorated WO3 Nanorods for Morphological Change and Gas Sensor Application Using the Transition Effect. / Song, Young Geun; Park, Jae Yeol; Suh, Jun Min; Shim, Young Seok; Yi, Seung Yeop; Jang, Ho Won; Kim, Sangtae; Yuk, Jong Min; Ju, Byeong Kwon; Kang, Chong-Yun.
In: Chemistry of Materials, Vol. 31, No. 1, 08.01.2019, p. 207-215.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Heterojunction Based on Rh-Decorated WO3 Nanorods for Morphological Change and Gas Sensor Application Using the Transition Effect
AU - Song, Young Geun
AU - Park, Jae Yeol
AU - Suh, Jun Min
AU - Shim, Young Seok
AU - Yi, Seung Yeop
AU - Jang, Ho Won
AU - Kim, Sangtae
AU - Yuk, Jong Min
AU - Ju, Byeong Kwon
AU - Kang, Chong-Yun
PY - 2019/1/8
Y1 - 2019/1/8
N2 - The use of heterojunctions based on Rh-decorated WO3 nanorods is an effective strategy for achieving high-performance gas sensors for volatile organic compounds (VOCs), especially acetone (CH3COCH3). Herein, we successfully fabricated Rh-decorated WO3 nanorods with one-dimensional (1D) structures by glancing angle deposition (GLAD). Interestingly, morphological changes characterized by anomalous surfaces with numerous regions of negative curvature were observed upon decoration of the bare WO3 nanorods with Rh, which were systematically investigated on the basis of impeded surface diffusion and trapping effects. The improvements of gas sensing properties were stepwisely demonstrated by synergistic effects involving transition of Rh, high chemical potential of the negative curvature, primary decomposition at the top side, and highly ordered nanostructures. We are confident that the results provide new insight into the synthesis of effective nanostructures and contribute to a variety of applications including battery, solar water splitting, and sensor devices.
AB - The use of heterojunctions based on Rh-decorated WO3 nanorods is an effective strategy for achieving high-performance gas sensors for volatile organic compounds (VOCs), especially acetone (CH3COCH3). Herein, we successfully fabricated Rh-decorated WO3 nanorods with one-dimensional (1D) structures by glancing angle deposition (GLAD). Interestingly, morphological changes characterized by anomalous surfaces with numerous regions of negative curvature were observed upon decoration of the bare WO3 nanorods with Rh, which were systematically investigated on the basis of impeded surface diffusion and trapping effects. The improvements of gas sensing properties were stepwisely demonstrated by synergistic effects involving transition of Rh, high chemical potential of the negative curvature, primary decomposition at the top side, and highly ordered nanostructures. We are confident that the results provide new insight into the synthesis of effective nanostructures and contribute to a variety of applications including battery, solar water splitting, and sensor devices.
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UR - http://www.scopus.com/inward/citedby.url?scp=85059381221&partnerID=8YFLogxK
U2 - 10.1021/acs.chemmater.8b04181
DO - 10.1021/acs.chemmater.8b04181
M3 - Article
AN - SCOPUS:85059381221
VL - 31
SP - 207
EP - 215
JO - Chemistry of Materials
JF - Chemistry of Materials
SN - 0897-4756
IS - 1
ER -