Boosting Ethylene Glycol Sensing Performance with Dendritic Hierarchical CuO/Co3O4 Heterojunction Nanowire

Chen Su; Mingyu Li; Yongfeng Zhang; Tianqing Liu; Cong Ren; Peipei Li; Xiaoqiang Yin; Lu Zhang; Min Zhang; Weiwei Wu

doi:10.1021/acsanm.3c03690

Boosting Ethylene Glycol Sensing Performance with Dendritic Hierarchical CuO/Co₃O₄ Heterojunction Nanowire

Chen Su, Mingyu Li, Yongfeng Zhang, Tianqing Liu, Cong Ren, Peipei Li, Xiaoqiang Yin, Lu Zhang, Min Zhang, Weiwei Wu

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

5 Scopus citations

Abstract

Heterostructures comprising metal oxide semiconductors (MOSs) have proven to be effective techniques in the development of high-performance gas sensors. In this study, we developed a feasible hydrothermal technique for the synthesis of a hierarchical dendritic CuO/Co₃O₄ nanowire heterostructure, which exhibits a strong affinity for ethylene glycol (EG) adsorption. The resulting gas sensor, based on a hierarchical CuO/Co₃O₄ heterostructure, has an exceptionally high response (6.3) to 100 ppm EG at 130 °C. The enhanced sensing performance toward EG can be attributed to the formation of a unique CuO/Co₃O₄ core-shell heterojunction structure. The mechanism behind this enhanced performance is explained by the heterojunction-depletion model, which takes into account precise band alignments. This study serves as inspiration for the design of various p-p heterojunctions in the development of high-performance gas sensors. A feasible hydrothermal technique was developed for obtaining a hierarchical dendritic CuO/Co₃O₄ nanowire heterostructure with high EG gas sensing performance.

Original language	English
Pages (from-to)	19249-19256
Number of pages	8
Journal	ACS Applied Nano Materials
Volume	6
Issue number	20
DOIs	https://doi.org/10.1021/acsanm.3c03690
State	Published - 27 Oct 2023
Externally published	Yes

Keywords

CuO/CoO nanomaterial
ethylene glycol
gas sensor
heterojunction
hierarchical nanostructure

ASJC Scopus subject areas

General Materials Science

Access to Document

10.1021/acsanm.3c03690

Cite this

@article{d6f2b7b141644394857cbceed59a8d7c,

title = "Boosting Ethylene Glycol Sensing Performance with Dendritic Hierarchical CuO/Co3O4 Heterojunction Nanowire",

abstract = "Heterostructures comprising metal oxide semiconductors (MOSs) have proven to be effective techniques in the development of high-performance gas sensors. In this study, we developed a feasible hydrothermal technique for the synthesis of a hierarchical dendritic CuO/Co3O4 nanowire heterostructure, which exhibits a strong affinity for ethylene glycol (EG) adsorption. The resulting gas sensor, based on a hierarchical CuO/Co3O4 heterostructure, has an exceptionally high response (6.3) to 100 ppm EG at 130 °C. The enhanced sensing performance toward EG can be attributed to the formation of a unique CuO/Co3O4 core-shell heterojunction structure. The mechanism behind this enhanced performance is explained by the heterojunction-depletion model, which takes into account precise band alignments. This study serves as inspiration for the design of various p-p heterojunctions in the development of high-performance gas sensors. A feasible hydrothermal technique was developed for obtaining a hierarchical dendritic CuO/Co3O4 nanowire heterostructure with high EG gas sensing performance.",

keywords = "CuO/CoO nanomaterial, ethylene glycol, gas sensor, heterojunction, hierarchical nanostructure",

author = "Chen Su and Mingyu Li and Yongfeng Zhang and Tianqing Liu and Cong Ren and Peipei Li and Xiaoqiang Yin and Lu Zhang and Min Zhang and Weiwei Wu",

note = "Publisher Copyright: {\textcopyright} 2023 American Chemical Society.",

year = "2023",

month = oct,

day = "27",

doi = "10.1021/acsanm.3c03690",

language = "English",

volume = "6",

pages = "19249--19256",

journal = "ACS Applied Nano Materials",

issn = "2574-0970",

publisher = "American Chemical Society",

number = "20",

}

TY - JOUR

T1 - Boosting Ethylene Glycol Sensing Performance with Dendritic Hierarchical CuO/Co3O4 Heterojunction Nanowire

AU - Su, Chen

AU - Li, Mingyu

AU - Zhang, Yongfeng

AU - Liu, Tianqing

AU - Ren, Cong

AU - Li, Peipei

AU - Yin, Xiaoqiang

AU - Zhang, Lu

AU - Zhang, Min

AU - Wu, Weiwei

PY - 2023/10/27

Y1 - 2023/10/27

N2 - Heterostructures comprising metal oxide semiconductors (MOSs) have proven to be effective techniques in the development of high-performance gas sensors. In this study, we developed a feasible hydrothermal technique for the synthesis of a hierarchical dendritic CuO/Co3O4 nanowire heterostructure, which exhibits a strong affinity for ethylene glycol (EG) adsorption. The resulting gas sensor, based on a hierarchical CuO/Co3O4 heterostructure, has an exceptionally high response (6.3) to 100 ppm EG at 130 °C. The enhanced sensing performance toward EG can be attributed to the formation of a unique CuO/Co3O4 core-shell heterojunction structure. The mechanism behind this enhanced performance is explained by the heterojunction-depletion model, which takes into account precise band alignments. This study serves as inspiration for the design of various p-p heterojunctions in the development of high-performance gas sensors. A feasible hydrothermal technique was developed for obtaining a hierarchical dendritic CuO/Co3O4 nanowire heterostructure with high EG gas sensing performance.

AB - Heterostructures comprising metal oxide semiconductors (MOSs) have proven to be effective techniques in the development of high-performance gas sensors. In this study, we developed a feasible hydrothermal technique for the synthesis of a hierarchical dendritic CuO/Co3O4 nanowire heterostructure, which exhibits a strong affinity for ethylene glycol (EG) adsorption. The resulting gas sensor, based on a hierarchical CuO/Co3O4 heterostructure, has an exceptionally high response (6.3) to 100 ppm EG at 130 °C. The enhanced sensing performance toward EG can be attributed to the formation of a unique CuO/Co3O4 core-shell heterojunction structure. The mechanism behind this enhanced performance is explained by the heterojunction-depletion model, which takes into account precise band alignments. This study serves as inspiration for the design of various p-p heterojunctions in the development of high-performance gas sensors. A feasible hydrothermal technique was developed for obtaining a hierarchical dendritic CuO/Co3O4 nanowire heterostructure with high EG gas sensing performance.

KW - CuO/CoO nanomaterial

KW - ethylene glycol

KW - gas sensor

KW - heterojunction

KW - hierarchical nanostructure

UR - http://www.scopus.com/inward/record.url?scp=85176775665&partnerID=8YFLogxK

U2 - 10.1021/acsanm.3c03690

DO - 10.1021/acsanm.3c03690

M3 - Article

AN - SCOPUS:85176775665

SN - 2574-0970

VL - 6

SP - 19249

EP - 19256

JO - ACS Applied Nano Materials

JF - ACS Applied Nano Materials

IS - 20

ER -