Ag decorated ZnO nanocrystallines synthesized by a low-temperature solvothermal method and their application for high response H2 gas sensor

Li, Zeyang; Zhang, Guanglian; Gao, Waiqiong; Zhao, Rongjun; Wang, Yude

doi:10.1007/s10854-019-02253-5

Cited by 14 publications

(5 citation statements)

References 36 publications

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“…Metal oxide semiconductor gas sensors doped with mono-metallic metals are known to show low sensing performance, limited response time as well as low selectivity toward H 2 detection. 43 To resolve these limitations, ultrathin ZnO nanoplates were modified on the surface by using bimetallic Ag/Pd nanoparticles. The results showed significant sensitivity at the temperature range of 200–400 °C.…”

Section: Resultsmentioning

confidence: 99%

A sigh-performance hydrogen gas sensor based on Ag/Pd nanoparticle-functionalized ZnO nanoplates

Nguyet

Duy

et al. 2023

RSC Adv.

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Section: Resultsmentioning

confidence: 99%

A sigh-performance hydrogen gas sensor based on Ag/Pd nanoparticle-functionalized ZnO nanoplates

Nguyet

Duy

et al. 2023

RSC Adv.

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“…Table 1 [48][49][50][51][52]54,60,65,66,69,70,72,74,76,77,80,[85][86][87][88][89][90][91][92][93][94][95] shows the gas-sensing performances of Ag-loaded SMO-based sensors for various toxic gases. In addition, other researchers [95][96][97][98][99][100][101][102][103][104][105][106][107][108][109] have reported enhanced gas sensing after Ag decoration. Depending on the type of SMO and the synergistic effects between Ag and SMO, the sensing temperature can vary from room temperature to high temperatures.…”

Section: Summary Of Ag-decorated Gas Sensorsmentioning

confidence: 99%

“…Table 2 presents the sensing properties of Ag-doped SMO-based gas-sensing devices [92][93][94][95][96][97][98][99][100][101][102][103][104][105][106][107]. Different gases at various temperatures can be detected by doping Ag into the pristine sensing device, which suggests the promising role of Ag as a noble metal dopant in the detection of toxic gases.…”

Section: Ag-doped Gas Sensorsmentioning

confidence: 99%

Effect of Ag Addition on the Gas-Sensing Properties of Nanostructured Resistive-Based Gas Sensors: An Overview

Navale

Shahbaz

Mirzaei

et al. 2021

Sensors

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Nanostructured semiconducting metal oxides (SMOs) are among the most popular sensing materials for integration into resistive-type gas sensors owing to their low costs and high sensing performances. SMOs can be decorated or doped with noble metals to further enhance their gas sensing properties. Ag is one of the cheapest noble metals, and it is extensively used in the decoration or doping of SMOs to boost the overall gas-sensing performances of SMOs. In this review, we discussed the impact of Ag addition on the gas-sensing properties of nanostructured resistive-based gas sensors. Ag-decorated or -doped SMOs often exhibit better responsivities/selectivities at low sensing temperatures and shorter response times than those of their pristine counterparts. Herein, the focus was on the detection mechanism of SMO-based gas sensors in the presence of Ag. This review can provide insights for research on SMO-based gas sensors.

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“…The Pd-WO 3 nanoparticle sensors could detect H 2 at room temperature with a remarkably high response and selectivity [14]. The Ag-decorated ZnO nanocrystallines possessed excellent H 2 gas-sensing properties with a high gas response, fast response-recovery times, good repeatability and stability owing to the catalytic activity of Ag nanoparticles, which led to more active sites for the reaction of hydrogen on the surface of sensors [15]. Among noble metals, silver is the cheapest.…”

Section: Introductionmentioning

confidence: 99%

A high-sensitivity hydrogen gas sensor based on Ag nanoparticle-decorated porous Co3O4 nanorods

Sinh,

Quang,

Phuong

et al. 2024

Vietnam J. Sci. Technol.

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In this report, Ag nanoparticle-decorated cobalt carbonate hydroxide microflowers were synthesized using a simple hydrothermal approach without using surfactants, which were used as precursors to prepare Ag nanoparticle-decorated porous Co3O4 nanorods through an annealing process. The porous Co3O4 nanorods were composed of small primary nanoparticles with a size of ~ 10 nm, and their surface was decorated with uniform Ag nanoparticles (~ 10 nm). Sensors based on the porous Co3O4 nanorods decorated with Ag nanoparticles have higher sensitivity and selectivity to H2 gas than other reduced gases, as well as rapid response-recovery times. The enhanced H2 sensing properties of the sample may be attributed to the excellent catalytic features of Ag nanoparticles and unique porous Co3O4 nanorods. The results demonstrated the potential of Ag nanoparticle-decorated porous Co3O4 nanorods as sensing materials for the detection of hydrogen gas at low temperatures.

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Ag decorated ZnO nanocrystallines synthesized by a low-temperature solvothermal method and their application for high response H2 gas sensor

Cited by 14 publications

References 36 publications

A sigh-performance hydrogen gas sensor based on Ag/Pd nanoparticle-functionalized ZnO nanoplates

A sigh-performance hydrogen gas sensor based on Ag/Pd nanoparticle-functionalized ZnO nanoplates

Effect of Ag Addition on the Gas-Sensing Properties of Nanostructured Resistive-Based Gas Sensors: An Overview

A high-sensitivity hydrogen gas sensor based on Ag nanoparticle-decorated porous Co3O4 nanorods

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