TY - JOUR
T1 - MoS2-xSex Nanoparticles for NO Detection at Room Temperature
AU - Taufik, Ardiansyah
AU - Asakura, Yusuke
AU - Hasegawa, Takuya
AU - Yin, Shu
N1 - Funding Information:
This research was partly supported by the Japan Society for the Promotion of Science KAKENHI (Grant nos. 20H00297 and JP16H06439), the Dynamic Alliance for Open Innovations Bridging Human, Environmental and Materials, and the Cooperative Research Program of Network Joint Research Center for Materials and Devices. XAFS measurements were performed at the BL9C of Photon Factory (PF) with the approval of the High Energy Accelerator Research Organization (KEK) (Proposal no. 2020P001).
Publisher Copyright:
© 2021 American Chemical Society
PY - 2021/7/23
Y1 - 2021/7/23
N2 - Molybdenum sulfide selenide (MoS2-xSex) solid solution nanoparticles were investigated to modify the crystal structure of molybdenum disulfide (MoS2) for improving the nitric oxide (NO) detection performance at room temperature. The hydrothermal reaction followed by post-annealing treatments was used to engineer the structural, morphological, and electronic properties of MoS2-xSexnanoparticles. MoS2-xSexsamples with different selenium addition ratios (x= 0, 0.2, 1, 1.8, and 2) were prepared to understand the optimum condition for NO detection. The gradual addition of the selenium atom expanded the interlayer distance and increased the lattice parametera=bfrom 3.148(0.1) Å forx= 0 to 3.279(0.08) Å forx= 2. The chemical bonding of Mo-S expands, while Mo-Se bonding compresses in MoS2-xSexsolid solution. The particle size also decreased after selenium addition from 500 nm forx= 0 to 80 nm forx= 2. The band gap also gradually decreased after selenium addition from 1.66 to 1.44 eV, which is related to an increase in the conductivity. The NO detection performance of MoS2-xSexwithx= 1 showed the highest NO detection performance with a response value of around 48% due to its small particle size, high adsorption energy, high charge transferability, and good stability. MoS2-xSexwithx= 1 detection performance was relatively stable under different humidity conditions and also was very sensitive to the NO gas molecule compared to volatile organic compound gases as well as hydrogen gas. This indicates that thex= 1 nanoparticle is very promising to be applied as a NO detection device at room temperature.
AB - Molybdenum sulfide selenide (MoS2-xSex) solid solution nanoparticles were investigated to modify the crystal structure of molybdenum disulfide (MoS2) for improving the nitric oxide (NO) detection performance at room temperature. The hydrothermal reaction followed by post-annealing treatments was used to engineer the structural, morphological, and electronic properties of MoS2-xSexnanoparticles. MoS2-xSexsamples with different selenium addition ratios (x= 0, 0.2, 1, 1.8, and 2) were prepared to understand the optimum condition for NO detection. The gradual addition of the selenium atom expanded the interlayer distance and increased the lattice parametera=bfrom 3.148(0.1) Å forx= 0 to 3.279(0.08) Å forx= 2. The chemical bonding of Mo-S expands, while Mo-Se bonding compresses in MoS2-xSexsolid solution. The particle size also decreased after selenium addition from 500 nm forx= 0 to 80 nm forx= 2. The band gap also gradually decreased after selenium addition from 1.66 to 1.44 eV, which is related to an increase in the conductivity. The NO detection performance of MoS2-xSexwithx= 1 showed the highest NO detection performance with a response value of around 48% due to its small particle size, high adsorption energy, high charge transferability, and good stability. MoS2-xSexwithx= 1 detection performance was relatively stable under different humidity conditions and also was very sensitive to the NO gas molecule compared to volatile organic compound gases as well as hydrogen gas. This indicates that thex= 1 nanoparticle is very promising to be applied as a NO detection device at room temperature.
KW - MoS2−xSex
KW - gas sensor
KW - nanoparticle
KW - nitric oxide
KW - room temperature
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U2 - 10.1021/acsanm.1c00926
DO - 10.1021/acsanm.1c00926
M3 - Article
AN - SCOPUS:85110264829
SN - 2574-0970
VL - 4
SP - 6861
EP - 6871
JO - ACS Applied Nano Materials
JF - ACS Applied Nano Materials
IS - 7
ER -