Solution-processable Ni<sub>3</sub>(HITP)<sub>2</sub>/MXene heterostructures for ppb-level gas detection

Wu, Xuanhao; Niu, Mengmeng; Tian, Xin; Peng, Xiaoyan; Buenconsej, Pio John S.; Wu, Xu; Wang, Yeliang; Ji, Wei; Li, Yi; Qiao, Jingsi; Tao, Jifang; Zhang, Mingming; Xiao, Song; Yuan, Hongye

doi:10.1039/d4ta02438a

J. Mater. Chem. A

2024

DOI: 10.1039/d4ta02438a

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Solution-processable Ni₃(HITP)₂/MXene heterostructures for ppb-level gas detection

Xuanhao Wu,

Mengmeng Niu,

Xin Tian

et al.

Abstract: Ni3(HITP)2/MXene heterostructures with conductivity and solution processability were constructed by a template assisted strategy. The Ni3(HITP)2/MXene-based gas sensors exhibit high sensitivity and selectivity to ethanol at room temperature.

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Cited by 5 publications

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Highly Selective, Room‐Temperature Triethylamine Sensor Using Humidity‐Resistant Novel TiZn Alloy Nanoparticles‐Decorated MoS₂ Nanosheets

Vikraman,

George,

Ghuge

et al. 2024

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The future of environmental monitoring, medical diagnostics, and industrial safety depends on developing room‐temperature, long‐term operable, stable, miniaturized, ultrahigh‐performance sensors integrated into the Internet of Things (IoT). While noble metals and high‐entropy alloys (HEAs) lead in addressing the limitations of conventional transition‐metal dichalcogenides (TMDs) like MoS₂, they face challenges such as high‐cost, limited availability, and fabrication complexity. To address this, multifunctional, cost‐effective, humidity‐insensitive novel phase Ti₀.₅Zn₀.₅ (TiZn) alloy nanoparticle‐decorated MoS₂ nanosheets (MoS₂_NP) is developed for ultra‐selective and highly sensitive triethylamine (TEA) vapor detection at room temperature (RT). This exhibited a 24‐fold increase in response compared to MoS₂, with a high signal‐to‐noise ratio, negligible humidity interference, sensitivity of 9.92 × 10⁻⁵ ppm⁻¹ at RT, and a detection limit of 48 ppm. The enhanced catalytic activity and defect concentration, the reduction of the edge oxidation resulting in strong Fermi‐level pinning, and the relatively high adsorption energy lead to a target gas‐specific carrier‐type response, demonstrating the potential of binary alloy nanoparticles (NPs) as decorative materials for enhanced sensing applications. The superior performance of the sensor led to the development of a TEA detection prototype interfaced with a mobile device via IoT for continuous monitoring, enhancing practicality and usability by offering immediate access to critical information.

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Highly Selective, Room‐Temperature Triethylamine Sensor Using Humidity‐Resistant Novel TiZn Alloy Nanoparticles‐Decorated MoS₂ Nanosheets

Vikraman,

George,

Ghuge

et al. 2024

Small

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Cancer therapy by MXene-based Nanosystems: An Explicative review

Nandi,

Karati,

Mukherjee

2024

Inorganic Chemistry Communications

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Electric-field assisted spatioselective deposition of MIL-101(Cr)PEDOT to enhance electrical conductivity and humidity sensing performance

Benseghir,

Tsang,

Schöfbeck

et al. 2025

Journal of Colloid and Interface Science

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Solution-processable Ni₃(HITP)₂/MXene heterostructures for ppb-level gas detection

Abstract: Ni3(HITP)2/MXene heterostructures with conductivity and solution processability were constructed by a template assisted strategy. The Ni3(HITP)2/MXene-based gas sensors exhibit high sensitivity and selectivity to ethanol at room temperature.

Cited by 5 publications

References 62 publications

Highly Selective, Room‐Temperature Triethylamine Sensor Using Humidity‐Resistant Novel TiZn Alloy Nanoparticles‐Decorated MoS₂ Nanosheets

Highly Selective, Room‐Temperature Triethylamine Sensor Using Humidity‐Resistant Novel TiZn Alloy Nanoparticles‐Decorated MoS₂ Nanosheets

Cancer therapy by MXene-based Nanosystems: An Explicative review

Electric-field assisted spatioselective deposition of MIL-101(Cr)PEDOT to enhance electrical conductivity and humidity sensing performance

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Solution-processable Ni3(HITP)2/MXene heterostructures for ppb-level gas detection

Abstract: Ni3(HITP)2/MXene heterostructures with conductivity and solution processability were constructed by a template assisted strategy. The Ni3(HITP)2/MXene-based gas sensors exhibit high sensitivity and selectivity to ethanol at room temperature.

Cited by 5 publications

References 62 publications

Highly Selective, Room‐Temperature Triethylamine Sensor Using Humidity‐Resistant Novel TiZn Alloy Nanoparticles‐Decorated MoS₂ Nanosheets

Highly Selective, Room‐Temperature Triethylamine Sensor Using Humidity‐Resistant Novel TiZn Alloy Nanoparticles‐Decorated MoS₂ Nanosheets

Cancer therapy by MXene-based Nanosystems: An Explicative review

Electric-field assisted spatioselective deposition of MIL-101(Cr)PEDOT to enhance electrical conductivity and humidity sensing performance

Contact Info

Product

Resources

About

Solution-processable Ni₃(HITP)₂/MXene heterostructures for ppb-level gas detection