A Afzal, N Cioffi, L Sabbatini, et al. NOx sensors based on semiconducting metal oxide nanostructures: Progress and perspectives. Sensor Actuat B: Chem 2012, 171: 25-42.
GF Fine, LM Cavanagh, A Afonja, et al. Metal oxide semi- conductor gas sensors in environmental monitoring. Sensors 2010, 10: 5469-5502.
J Sukunta, A Wisitsoraat, A Tuantranont, et al. WO3 nanotubes–SnO2 nanoparticles heterointerfaces for ultrasensitive and selective NO2 detections. Appl Surf Sci 2018, 458: 319-332.
ZY Wang, C Zhao, TY Han, et al. High-performance reduced graphene oxide-based room-temperature NO2 sensors: A combined surface modification of SnO2 nanoparticles and nitrogen doping approach. Sensor Actuat B: Chem 2017, 242: 269-279.
QT Minh Nguyet, N van Duy, NT Phuong, et al. Superior enhancement of NO2 gas response using n-p-n transition of carbon nanotubes/SnO2 nanowires heterojunctions. Sensor Actuat B: Chem 2017, 238: 1120-1127.
X Geng, PF Lu, C Zhang, et al. Room-temperature NO2 gas sensors based on rGO@ZnO1-x composites: Experiments and molecular dynamics simulation. Sensor Actuat B: Chem 2019, 282: 690-702.
XX Chen, YB Shen, PF Zhou, et al. NO2 sensing properties of one-pot-synthesized ZnO nanowires with Pd functionalization. Sensor Actuat B: Chem 2019, 280: 151-161.
SK Zhao, YB Shen, PF Zhou, et al. Design of Au@WO3 core–shell structured nanospheres for ppb-level NO2 sensing. Sensor Actuat B: Chem 2019, 282: 917-926.
ZY Zhang, M Haq, Z Wen, et al. Ultrasensitive ppb-level NO2 gas sensor based on WO3 hollow nanosphers doped with Fe. Appl Surf Sci 2018, 434: 891-897.
LL Wang, J Gao, BF Wu, et al. Designed synthesis of In2O3 Beads@TiO2–In2O3 composite nanofibers for high performance NO2 sensor at room temperature. ACS Appl Mater Interfaces 2015, 7: 27152-27159.
PP González-Borrero, F Sato, AN Medina, et al. Optical band-gap determination of nanostructured WO3 film. Appl Phys Lett 2010, 96: 061909.
HD Zheng, JZ Ou, MS Strano, et al. Nanostructured tungsten oxide-properties, synthesis, and applications. Adv Funct Mater 2011, 21: 2175-2196.
G Korotcenkov, BK Cho. Metal oxide composites in conductometric gas sensors: Achievements and challenges. Sensor Actuat B: Chem 2017, 244: 182-210.
DH Kim, JW Jung, SJ Choi, et al. Pt nanoparticles functionalized tungsten oxynitride hybrid chemiresistor: Low-temperature NO2 sensing. Sensor Actuat B: Chem 2018, 273: 1269-1277.
NA Isaac, M Valenti, A Schmidt-Ott, et al. Characterization of tungsten oxide thin films produced by spark ablation for NO2 gas sensing. ACS Appl Mater Interfaces 2016, 8: 3933-3939.
JS Kim, JW Yoon, YJ Hong, et al. Highly sensitive and selective detection of ppb-level NO2 using multi-shelled WO3 yolk-shell spheres. Sensor Actuat B: Chem 2016, 229: 561-569.
YL Wang, XB Cui, QY Yang, et al. Preparation of Ag-loaded mesoporous WO3 and its enhanced NO2 sensing performance. Sensor Actuat B: Chem 2016, 225: 544-552.
SJ Choi, I Lee, BH Jang, et al. Selective diagnosis of diabetes using Pt-functionalized WO3 Hemitube networks as a sensing layer of acetone in exhaled breath. Anal Chem 2013, 85: 1792-1796.
Y Xiong, ZL Tang, Y Wang, et al. Gas sensing capabilities of TiO2 porous nanoceramics prepared through premature sintering. J Adv Ceram 2015, 4: 152-157.
HW Zhang, YY Wang, XG Zhu, et al. Bilayer Au nanoparticle-decorated WO3 porous thin films: On-chip fabrication and enhanced NO2 gas sensing performances with high selectivity. Sensor Actuat B: Chem 2019, 280: 192-200.
DR Miller, SA Akbar, PA Morris. Nanoscale metal oxide- based heterojunctions for gas sensing: A review. Sensor Actuat B: Chem 2014, 204: 250-272.
QQ Jia, HM Ji, DH Wang, et al. Exposed facets induced enhanced acetone selective sensing property of nanostructured tungsten oxide. J Mater Chem A 2014, 2: 13602.
SS Shendage, VL Patil, SA Vanalakar, et al. Sensitive and selective NO2 gas sensor based on WO3 nanoplates. Sensor Actuat B: Chem 2017, 240: 426-433.
BX Xiao, Q Zhao, CH Xiao, et al. Low-temperature solvothermal synthesis of hierarchical flower-like WO3 nanostructures and their sensing properties for H2S. CrystEngComm 2015, 17: 5710-5716.
P Jaroenapibal, P Boonma, N Saksilaporn, et al. Improved NO2 sensing performance of electrospun WO3 nanofibers with silver doping. Sensor Actuat B: Chem 2018, 255: 1831-1840.
QF Wu, J Huang, H Li. Deposition of porous nano-WO3 coatings with tunable grain shapes by liquid plasma spraying for gas-sensing applications. Mater Lett 2015, 141: 100-103.
K Lee, DH Baek, H Na, et al. Simple fabrication method of silicon/tungsten oxide nanowires heterojunction for NO2 gas sensors. Sensor Actuat B: Chem 2018, 265: 522-528.
YJ Zhang, W Zeng, YQ Li. New insight into gas sensing performance of nanorods assembled and nanosheets assembled hierarchical WO3·H2O structures. Mater Lett 2019, 235: 49-52.
CB Zhai, MM Zhu, LN Jiang, et al. Fast triethylamine gas sensing response properties of nanosheets assembled WO3 hollow microspheres. Appl Surf Sci 2019, 463: 1078-1084.
J Lu, C Xu, L Cheng, et al. Acetone sensor based on WO3 nanocrystallines with oxygen defects for low concentration detection. Mater Sci Semicond Process 2019, 101: 214-222.
YX Zhang, W Zeng, YQ Li. NO2 and H2 sensing properties for urchin-like hexagonal WO3 based on experimental and first-principle investigations. Ceram Int 2019, 45: 6043-6050.
DP Xue, Y Wang, JL Cao, et al. Improving methane gas sensing performance of flower-like SnO2 decorated by WO3 nanoplates. Talanta 2019, 199: 603-611.
L Yin, DL Chen, MX Hu, et al. Microwave-assisted growth of In2O3 nanoparticles on WO3 nanoplates to improve H2S-sensing performance. J Mater Chem A 2014, 2: 18867-18874.
AK Nayak, R Ghosh, S Santra, et al. Hierarchical nanostructured WO3–SnO2 for selective sensing of volatile organic compounds. Nanoscale 2015, 7: 12460-12473.
JS Lee, OS Kwon, DH Shin, et al. WO3 nanonodule- decorated hybrid carbon nanofibers for NO2 gas sensor application. J Mater Chem A 2013, 1: 9099.
YB Shen, W Wang, XX Chen, et al. Nitrogen dioxide sensing using tungsten oxide microspheres with hierarchical nanorod-assembled architectures by a complexing surfactant-mediated hydrothermal route. J Mater Chem A 2016, 4: 1345-1352.
MF Daniel, B Desbat, JC Lassegues, et al. Infrared and Raman study of WO3 tungsten trioxides and WO3, xH2O tungsten trioxide tydrates. J Solid State Chem 1987, 67: 235-247.
Y Zheng, G Chen, YG Yu, et al. Urea-assisted synthesis of ultra-thin hexagonal tungsten trioxide photocatalyst sheets. J Mater Sci 2015, 50: 8111-8119.
JJ Shi, ZX Cheng, LP Gao, et al. Facile synthesis of reduced graphene oxide/hexagonal WO3 nanosheets composites with enhanced H2S sensing properties. Sensor Actuat B: Chem 2016, 230: 736-745.
CT Pan, CY Su, YC Luo. Study on comparing WO3 and W18O49 gas sensing abilities under NO2 environment. Microsyst Technol 2017, 23: 2113-2123.
AT Mane, SB Kulkarni, ST Navale, et al. NO2 sensing properties of nanostructured tungsten oxide thin films. Ceram Int 2014, 40: 16495-16502.
B Behera, S Chandra. Synthesis of WO3 nanorods by thermal oxidation technique for NO2 gas sensing application. Mater Sci Semicond Process 2018, 86: 79-84.
S An, S Park, H Ko, et al. Fabrication of WO3 nanotube sensors and their gas sensing properties. Ceram Int 2014, 40: 1423-1429.
M Horprathum, K Limwichean, A Wisitsoraat, et al. NO2– sensing properties of WO3 nanorods prepared by glancing angle DC magnetron sputtering. Sensor Actuat B: Chem 2013, 176: 685-691.
J Hu, YF Liang, YJ Sun, et al. Highly sensitive NO2 detection on ppb level by devices based on Pd-loaded In2O3 hierarchical microstructures. Sensor Actuat B: Chem 2017, 252: 116-126.