Enhanced room temperature ammonia response of 2D-Ti3C2T  MXene decorated with Ni(OH)2 nanoparticles

Kuang, Delin; Guo, Xuezheng; Zhu, Zetao; Ding, Yanqiao; Sun, Xia; Wu, Zhan‐Chao; Zhang, Luwen; Zhou, Yangyang; He, Yong

doi:10.1016/j.ceramint.2021.03.284

Cited by 31 publications

(7 citation statements)

References 48 publications

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“…Notably, the peaks of Pt°have a negative shift compared to bulk platinum (Pt 4f 7/2 : 71.0 eV, Pt 4f 5/2 : 74.5 eV) reported in previous work [40,41]. The shift of binding energy is because of the electron transfer from Ti 3 C 2 T x /TiO 2 to Pt NPs, indicating a strong electronic interaction between them [42,43].…”

Section: Resultsmentioning

confidence: 73%

Enhanced ammonia sensing response based on Pt-decorated Ti₃C₂T _x /TiO₂ composite at room temperature

Zhang¹,

Wang²,

Zou³

et al. 2023

Nanotechnology

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Herein, we report a Pt-decorated Ti3C2Tx/TiO2 gas sensor for the enhanced NH3 sensing response at room temperature. Firstly, the TiO2 nanosheets (NSs) are in-situ grown onto the two-dimensional (2D) Ti3C2Tx by hydrothermal treatment. Similar to Ti3C2Tx sensor, the Ti3C2Tx/TiO2 sensor has a positive resistance variation upon exposure to NH3, but with slight enhancement in response. However, after the loading of Pt nanoparticles (NPs), the Pt-Ti3C2Tx/TiO2 sensor shows a negative response with significantly improved NH3 sensing performance. The shift in response direction indicates that the dominant sensing mechanism has changed under the sensitization effect of Pt NPs. At room temperature, the response of Pt-Ti3C2Tx/TiO2 gas sensor to 100 ppm NH3 is about 45.5%, which is 13.8- and 10.8- times higher than those of Ti3C2Tx and Ti3C2Tx/TiO2 gas sensors, respectively. The experimental detection limit of the Pt-Ti3C2Tx/TiO2 gas sensor to detect NH3 is 10 ppm, and the corresponding response is 10.0%. In addition, the Pt-Ti3C2Tx/TiO2 gas sensor shows the fast response/recovery speed (23/34 s to 100 ppm NH3), high selectivity and good stability. Considering both the response value and the response direction, the corresponding gas-sensing mechanism is also deeply discussed. This work is expected to shed a new light on the development of noble metals decorated MXene-metal oxide gas sensors.

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Section: Resultsmentioning

confidence: 73%

Enhanced ammonia sensing response based on Pt-decorated Ti₃C₂T _x /TiO₂ composite at room temperature

Zhang¹,

Wang²,

Zou³

et al. 2023

Nanotechnology

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“…6. 100 4.2.4 MXene-polymers and other hybrids. MXenes combined with polymers provide increased mechanical flexibility Dalton Transactions Perspective and durability.…”

Section: Perspective Dalton Transactionsmentioning

confidence: 99%

“…The Ti 3 C 2 T x /Ni(OH) 2 composite with 7.8 wt% named N/M-2 in this study gave the highest response and low electrical noise when checked for ammonia sensing at room temperature, and the responsible energy band diagram is illustrated in Fig. 6. 100…”

Section: Recent Developments In Mxene-based Materials For Nh3 Sensorsmentioning

confidence: 99%

Room-temperature chemiresistive ammonia sensors based on 2D MXenes and their hybrids: recent developments and future prospects

Atkare,

Kaushik,

Jagtap

et al. 2023

Dalton Trans.

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“…In recent years, people have paid more attention to the effect of humidity on the design of gas sensors, [24][25][26][27][28][29][30][31][32][33] and they put forward many measures to abate the humidity influence on the sensor. [34][35][36][37][38][39][40][41][42] that the recovery time after the response is greatly shortened, and the selectivity is improved.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, people have paid more attention to the effect of humidity on the design of gas sensors, [ 24–33 ] and they put forward many measures to abate the humidity influence on the sensor. [ 34–42 ] Perfecto et al.…”

Section: Introductionmentioning

confidence: 99%

Research progress on moisture resistance of gas sensors

Sun,

Shi,

Wang

et al. 2023

CLEAN Soil Air Water

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Sensors used to detect explosive, flammable, toxic, and harmful gases are in focus of research. The gas sensor can be affected by many factors in the process of use, and among the many adverse elements affecting the function of the gas sensor, humidity is the most common. With the rapid development of gas sensors, the influence of humidity on gas sensors has been paid more and more attention. To reduce the impact of humidity, many methods have been proposed. In this review, the specific impact of humidity on the function of metal‐oxide semiconductors and solid electrolyte gas sensors is summarized. Practical techniques are proposed to reduce the effect of humidity on device performance, which is of great help in improving the detection efficiency and quality of gas sensors in high‐humidity environment. The information may be valuable for expanding the application field of gas sensors.

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Enhanced room temperature ammonia response of 2D-Ti3C2T MXene decorated with Ni(OH)2 nanoparticles

Cited by 31 publications

References 48 publications

Enhanced ammonia sensing response based on Pt-decorated Ti₃C₂T _x /TiO₂ composite at room temperature

Enhanced ammonia sensing response based on Pt-decorated Ti₃C₂T _x /TiO₂ composite at room temperature

Room-temperature chemiresistive ammonia sensors based on 2D MXenes and their hybrids: recent developments and future prospects

Research progress on moisture resistance of gas sensors

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Enhanced room temperature ammonia response of 2D-Ti3C2T MXene decorated with Ni(OH)2 nanoparticles

Cited by 31 publications

References 48 publications

Enhanced ammonia sensing response based on Pt-decorated Ti3C2T x /TiO2 composite at room temperature

Enhanced ammonia sensing response based on Pt-decorated Ti3C2T x /TiO2 composite at room temperature

Room-temperature chemiresistive ammonia sensors based on 2D MXenes and their hybrids: recent developments and future prospects

Research progress on moisture resistance of gas sensors

Contact Info

Product

Resources

About

Enhanced ammonia sensing response based on Pt-decorated Ti₃C₂T _x /TiO₂ composite at room temperature

Enhanced ammonia sensing response based on Pt-decorated Ti₃C₂T _x /TiO₂ composite at room temperature