ppb-level acetone sensors based on LaFeO₃ synthesized by freeze-drying

Abstract

The demand for accurate acetone gas sensors in low-concentration detection is rapidly increasing in applications such as air safety monitoring and non-invasive diabetes diagnosis. In this study, a freeze-drying strategy is developed to synthesize LaFeO₃ with abundant oxygen vacancies and enhanced specific area. The acetone sensors based on above LaFeO₃ exhibit high response and excellent selectivity. Typically, the response is 125 for 50 ppm acetone, nearly 1.5 times that of materials prepared by the sol-gel method, and the detection limit is 19.3 ppb. The ppb-level acetone detection of the freeze-dried LaFeO₃ nanoparticle sensor can be attributed to the abundant oxygen vacancies and enhanced specific surface area, which provides more active sites for sensing. This not only provides a promising strategy for improving acetone sensor performance, but also lays the foundation for tuning the micro-nanostructure to enhance gas sensor capabilities.

Keywords

ppb-level detection / acetone sensor / LaFeO₃ nanoparticles / freeze-drying

References

[1] Lin G, Wang H, Li X-f, et al.. Chestnut-like CoFe₂O₄@SiO₂@In₂O₃ nanocomposite microspheres with enhanced acetone sensing property [J]. Sensors and Actuators B: Chemical, 2018, 255: 3364-3373

[2] Wang S-m, Cao J, Cui W, et al.. Facile synthesis and high acetone gas sensing performances of popcorn-like In₂O₃ hierarchical nanostructures [J]. Materials Letters, 2017, 186: 256-258

[3] Zhang S, Song P, Liu M, et al.. Metal-organic framework-derived in-doped Fe₂O₃ spindles with enhanced acetone gas sensing performance [J]. Inorganic Chemistry Communications, 2022, 142: 109658

[4] Turner C, Španěl P, Smith D. A longitudinal study of ammonia, acetone and propanol in the exhaled breath of 30 subjects using selected ion flow tube mass spectrometry, SIFT-MS [J]. Physiological Measurement, 2006, 27(4): 321

[5] Musa-Veloso K, Likhodii S S, Cunnane S C. Breath acetone is a reliable indicator of ketosis in adults consuming ketogenic meals 1, 2, 3 [J]. The American Journal of Clinical Nutrition, 2002, 76(1): 65-70

[6] Yang D, Gopal R A, Lkhagvaa T, et al.. Metal-oxide gas sensors for exhaled-breath analysis: A review [J]. Measurement Science and Technology, 2021, 32(10): 102004

[7] Güntner A T, Abegg S, Königstein K, et al.. Breath sensors for health monitoring [J]. ACS Sensors, 2019, 4(2): 268-280

[8] Mathialagan K, Surendran A, Thankappakurup S, et al.. Application of perovskite-type LaFeO₃ as a bifunctional electrocatalyst for high performance electrically rechargeable zinc-air batteries [J]. Journal of Alloys and Compounds, 2025, 1021: 179596

[9] Sun Y, Yin J-j, Wang Y, et al.. Facile fabrication of LaFeO₃ supported Pd nanoparticles as highly effective heterogeneous catalyst for suzuki-miyaura coupling reaction [J]. ChemNanoMat, 2024, 10(12): e202400450

[10] Wang T-l, Wang W, Miao H-l, et al.. Prediction of magnetic properties of an Ising-type perovskite LaFeO₃ by particle swarm optimization combined with Monte Carlo method [J]. Applied Physics A, 2022, 129(1): 39

[11] Köferstein R, Jäger L, Ebbinghaus S G. Magnetic and optical investigations on LaFeO₃ powders with different particle sizes and corresponding ceramics [J]. Solid State Ionics, 2013, 249–250: 1-5

[12] Wang B-q, Yu Q, Zhang S-f, et al.. Gas sensing with yolk-shell LaFeO₃ microspheres prepared by facile hydrothermal synthesis [J]. Sensors and Actuators B: Chemical, 2018, 258: 1215-1222

[13] Fan H-t, Zhang T, Xu X-j, et al.. Fabrication of N-type Fe₂O₃ and P-type LaFeO₃ nanobelts by electrospinning and determination of gas-sensing properties [J]. Sensors and Actuators B: Chemical, 2011, 153(1): 83-88

[14] Sun H-q, Song J, Shi P-f, et al.. Selective detection of NO using the perovskite-type oxide LaMO₃ (M=Cr, Mn, Fe, Co, and Ni) as the electrode material for yttrium-stabilized zirconia-based electrochemical sensors [J]. Journal of Materials Chemistry A, 2024, 12(29): 18234-18247

[15] Cao E-s, Wu A-t, Wang H-h, et al.. Enhanced ethanol sensing performance of Au and Cl comodified LaFeO₃ nanoparticles [J]. ACS Applied Nano Materials, 2019, 2(3): 1541-1551

[16] Xiao C-l, Zhang X-h, Ma Z-z, et al.. Formaldehyde gas sensor with 1 ppb detection limit based on in-doped LaFeO₃ porous structure [J]. Sensors and Actuators B: Chemical, 2022, 371: 132558

[17] Qin W-b, Zhang R-z, Yuan Z-y, et al.. Exposure surface active sites of perovskite-type LaFeO₃ gas sensors by selectively dissolving La cations for enhancing gas sensing properties to acetone [J]. Advanced Materials Technologies, 2022, 7(11): 2200255

[18] Wang X-f, Qin H-w, Pei J-l, et al.. Sensing performances to low concentration acetone for palladium doped LaFeO₃ sensors [J]. Journal of Rare Earths, 2016, 34(7): 704-710

[19] Cao E-s, Zhang Y-x, Zhang Y-j, et al.. Acetone sensing characteristics of TiO₂-LaFeO₃ nanocomposites [J]. Materials Letters, 2023, 351: 135056

[20] Shao J-k, Sun C-x, Liu H-y, et al.. Insight into Au functionalization on core-shell LaFeO₃ spheres for high-response and selectivity n-butanol gas sensors with DFT study [J]. Sensors and Actuators B: Chemical, 2023, 382: 133506

[21] Meng F-l, Qin L-y, Gao H-l, et al.. Perovskite-structured LaFeO₃ modified In₂O₃ gas sensor with high selectivity and ultra-low detection limit for 2-butanone [J]. Journal of Alloys and Compounds, 2024, 970: 172464

[22] Alharbi A A, Sackmann A, Weimar U, et al.. A highly selective sensor to acetylene and ethylene based on LaFeO₃ [J]. Sensors and Actuators B: Chemical, 2020, 303: 127204

[23] Nga Phan T T, My Dinh T T, Duc Nguyen M, et al.. Hierarchically structured LaFeO₃ with hollow core and porous shell as efficient sensing material for ethanol detection [J]. Sensors and Actuators B: Chemical, 2022, 354: 131195

[24] Thirumalairajan S, Girija K, Mastelaro V R, et al.. Surface morphology-dependent room-temperature LaFeO₃ nanostructure thin films as selective NO₂ gas sensor prepared by radio frequency magnetron sputtering [J]. ACS Applied Materials & Interfaces, 2014, 6(16): 13917-13927

[25] Xing Q-l, Cai Y, Zhang M. A sub-second response/recovery hydrogen sensor based on multifunctional palladium oxide modified heterojunctions [J]. Sensors and Actuators B: Chemical, 2024, 401: 134956

[26] Mirabella D A, Aldao C M. Dependence of n-type metal-oxide gas sensor response on the pressure of oxygen and reducing gases [J]. ACS Sensors, 2024, 9(4): 1938-1944

[27] Chen X-j, Xing Q-l, Tang X, et al.. Low palladium content CeO₂/ZnO composite for acetone sensor with sub-second response prepared by ultrasonic method [J]. Journal of Central South University, 2024, 31(7): 2137-2149

[28] Niu Y, Zeng J-w, Liu X-c, et al.. A photovoltaic self-powered gas sensor based on all-dry transferred MoS₂/GaSe heterojunction for ppb-level NO₂ sensing at room temperature [J]. Advanced Science, 2021, 8(14): 2100472

[29] Souri M, Salar A H, Yamini Y. Three-dimensionally ordered porous in-doped SmFeO₃ perovskite gas sensor for highly sensitive and selective detection of formaldehyde [J]. Sensors and Actuators B: Chemical, 2024, 404: 135213

[30] Meng F-l, Yang J, Wang Y-n, et al.. Acetone gas sensor based on spinel-structured hollow sea urchin-like core-shell ZnO/ZnFe₂O₄ spheres [J]. ACS Applied Nano Materials, 2024, 7(14): 16066-16074

[31] Ma L, Ma S Y, Shen X F, et al.. PrFeO₃ hollow nanofibers as a highly efficient gas sensor for acetone detection [J]. Sensors and Actuators B: Chemical, 2018, 255: 2546-2554

[32] Jiang L-l, Chen Z-y, Cui Q, et al.. Experimental and DFT-D3 study of sensitivity and sensing mechanism of ZnSnO₃ nanosheets to C₃H₆O gas [J]. Journal of Materials Science, 2022, 57(5): 1-21

[33] Neogi S, Ghosh R. Origin of irreversible to reversible transition in acetone detection for Y-doped BiFeO₃ perovskite [J]. Journal of Applied Physics, 2020, 128(14): 144501

[34] Zhang N, Ruan S-p, Yin Y-y, et al.. Self-sacrificial template-driven LaFeO₃/α-Fe₂O₃ porous nano-octahedrons for acetone sensing [J]. ACS Applied Nano Materials, 2018, 1(9): 4671-4681

[35] Shingange K, Swart H, Mhlongo G H. Ultrafast detection of low acetone concentration displayed by Au-loaded LaFeO₃ nanobelts owing to synergetic effects of porous 1D morphology and catalytic activity of Au nanoparticles [J]. ACS Omega, 2019, 4(21): 19018-19029

[36] Yu Q-c, Zhang Y-c, Xu Y. Hierarchical hollow BiFeO₃ microcubes with enhanced acetone gas sensing performance [J]. Dalton Transactions, 2021, 50(19): 6702-6709

[37] Peng S-l, Ma M, Yang W-j, et al.. Acetone sensing with parts-per-billion limit of detection using a BiFeO₃-based solid solution sensor at the morphotropic phase boundary [J]. Sensors and Actuators B: Chemical, 2020, 313: 128060

[38] Verma A, Yadav D, Singh A, et al.. Detection of acetone via exhaling human breath for regular monitoring of diabetes by low-cost sensing device based on perovskite BaSnO₃ nanorods [J]. Sensors and Actuators B: Chemical, 2022, 361: 131708

[39] Wei J-s, Ma S-y, Cai Y-h, et al.. A high-performance ethylene glycol sensor based on fibrous ErFeO₃ prepared by electrostatic spinning [J]. Ceramics International, 2023, 49(20): 32611-32618

[40] Liu G, Wang Z, Chen Z-h, et al.. Remarkably enhanced room-temperature hydrogen sensing of SnO₂ nanoflowers via vacuum annealing treatment [J]. Sensors, 2018, 18(4): 949

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Central South University