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Rodriguez-Olguin MA, Lipin R, Suominen M, Ruiz-Zepeda F, Castañeda-Morales E, Manzo-Robledo A, Gardeniers JGE, Flox C, Kallio T, Vandichel M, Susarrey-Arce A. Temperature promotes selectivity during electrochemical CO 2 reduction on NiO:SnO 2 nanofibers. JOURNAL OF MATERIALS CHEMISTRY. A 2024:d4ta04116j. [PMID: 39219709 PMCID: PMC11363033 DOI: 10.1039/d4ta04116j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Accepted: 08/08/2024] [Indexed: 09/04/2024]
Abstract
Electrolyzers operate over a range of temperatures; hence, it is crucial to design electrocatalysts that do not compromise the product distribution unless temperature can promote selectivity. This work reports a synthetic approach based on electrospinning to produce NiO:SnO2 nanofibers (NFs) for selectively reducing CO2 to formate above room temperature. The NFs comprise compact but disjoined NiO and SnO2 nanocrystals identified with STEM. The results are attributed to the segregation of NiO and SnO2 confirmed with XRD. The NFs are evaluated for the CO2 reduction reaction (CO2RR) over various temperatures (25, 30, 35, and 40 °C). The highest faradaic efficiencies to formate (FEHCOO- ) are reached by NiO:SnO2 NFs containing 50% of NiO and 50% SnO2 (NiOSnO50NF), and 25% of NiO and 75% SnO2 (NiOSnO75NF), at an electroreduction temperature of 40 °C. At 40 °C, product distribution is assessed with in situ differential electrochemical mass spectrometry (DEMS), recognizing methane and other species, like formate, hydrogen, and carbon monoxide, identified in an electrochemical flow cell. XPS and EELS unveiled the FEHCOO- variations due to a synergistic effect between Ni and Sn. DFT-based calculations reveal the superior thermodynamic stability of Ni-containing SnO2 systems towards CO2RR over the pure oxide systems. Furthermore, computational surface Pourbaix diagrams showed that the presence of Ni as a surface dopant increases the reduction of the SnO2 surface and enables the production of formate. Our results highlight the synergy between NiO and SnO2, which can promote the electroreduction of CO2 at temperatures above room temperature.
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Affiliation(s)
- M A Rodriguez-Olguin
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente P. O. Box 217 Enschede 7500AE The Netherlands
- Department of Chemical Engineering, MESA+ Institute, University of Twente P. O. Box 217 Enschede 7500AE The Netherlands
| | - R Lipin
- School of Chemical Sciences and Chemical Engineering, Bernal Institute, University of Limerick Limerick V94 T9PX Republic of Ireland
| | - M Suominen
- Department of Chemistry and Materials Science, Aalto University School of Chemical Engineering Kemistintie 1 02015 Espoo Finland
| | - F Ruiz-Zepeda
- Department of Materials Chemistry, National Institute of Chemistry Hajdrihova 19 1000 Ljubljana Slovenia
- Department of Physics and Chemistry of Materials, Institute of Metals and Technology Lepi pot 11 Ljubljana Slovenia
| | - E Castañeda-Morales
- Instituto Politécnico Nacional, Laboratorio de Electroquímica y Corrosión, Escuela Superior de Ingeniería Química e Industrias Extractivas Av. Instituto Politécnico Nacional S/N, Unidad Profesional Adolfo López Mateos CP 07708 CDMX Mexico
| | - A Manzo-Robledo
- Instituto Politécnico Nacional, Laboratorio de Electroquímica y Corrosión, Escuela Superior de Ingeniería Química e Industrias Extractivas Av. Instituto Politécnico Nacional S/N, Unidad Profesional Adolfo López Mateos CP 07708 CDMX Mexico
| | - J G E Gardeniers
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente P. O. Box 217 Enschede 7500AE The Netherlands
- Department of Chemical Engineering, MESA+ Institute, University of Twente P. O. Box 217 Enschede 7500AE The Netherlands
| | - C Flox
- Department of Chemistry and Materials Science, Aalto University School of Chemical Engineering Kemistintie 1 02015 Espoo Finland
- Department of Electrical Energy Storage, Iberian Centre for Research in Energy Storage, Campus University of Extremadura Avda. de las Letras, s/n 10004 Cáceres Spain
| | - T Kallio
- Department of Chemistry and Materials Science, Aalto University School of Chemical Engineering Kemistintie 1 02015 Espoo Finland
| | - M Vandichel
- School of Chemical Sciences and Chemical Engineering, Bernal Institute, University of Limerick Limerick V94 T9PX Republic of Ireland
| | - A Susarrey-Arce
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente P. O. Box 217 Enschede 7500AE The Netherlands
- Department of Chemical Engineering, MESA+ Institute, University of Twente P. O. Box 217 Enschede 7500AE The Netherlands
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Cai H, Luo N, Wang X, Guo M, Li X, Lu B, Xue Z, Xu J. Kinetics-Driven Dual Hydrogen Spillover Effects for Ultrasensitive Hydrogen Sensing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302652. [PMID: 37376839 DOI: 10.1002/smll.202302652] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/07/2023] [Indexed: 06/29/2023]
Abstract
Palladium (Pd)-modified metal oxide semiconductors (MOSs) gas sensors often exhibit unexpected hydrogen (H2 ) sensing activity through a spillover effect. However, sluggish kinetics over a limited Pd-MOS surface seriously restrict the sensing process. Here, a hollow Pd-NiO/SnO2 buffered nanocavity is engineered to kinetically drive the H2 spillover over dual yolk-shell surface for the ultrasensitive H2 sensing. This unique nanocavity is found and can induce more H2 absorption and markedly improve kinetical H2 ab/desorption rates. Meanwhile, the limited buffer-room allows the H2 molecules to adequately spillover in the inside-layer surface and thus realize dual H2 spillover effect. Ex situ XPS, in situ Raman, and density functional theory (DFT) analysis further confirm that the Pd species can effectively combine H2 to form Pd-H bonds and then dissociate the hydrogen species to NiO/SnO2 surface. The final Pd-NiO/SnO2 sensors exhibit an ultrasensitive response (0.1-1000 ppm H2 ) and low actual detection limit (100 ppb) at the operating temperature of 230 °C, which surpass that of most reported H2 sensors.
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Affiliation(s)
- Haijie Cai
- Department of Physics, Department of Chemistry, NEST lab, College of Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Na Luo
- Department of Physics, Department of Chemistry, NEST lab, College of Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Xiaowu Wang
- Department of Physics, Department of Chemistry, NEST lab, College of Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Mengmeng Guo
- Department of Physics, Department of Chemistry, NEST lab, College of Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Xiaojie Li
- Department of Physics, Department of Chemistry, NEST lab, College of Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Bo Lu
- Instrumental Analysis and Research Center of Shanghai University, Shanghai, 200444, PR China
| | - Zhenggang Xue
- Department of Physics, Department of Chemistry, NEST lab, College of Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Jiaqiang Xu
- Department of Physics, Department of Chemistry, NEST lab, College of Sciences, Shanghai University, Shanghai, 200444, PR China
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Malepe L, Ndinteh TD, Ndungu P, Mamo MA. A humidity-resistant and room temperature carbon soot@ZIF-67 composite sensor for acetone vapour detection. NANOSCALE ADVANCES 2023; 5:1956-1969. [PMID: 36998651 PMCID: PMC10044860 DOI: 10.1039/d3na00050h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 02/16/2023] [Indexed: 06/19/2023]
Abstract
Zeolitic imidazolate framework-67 (ZIF-67), carbon nanoparticles (CNPs), and the CNPs@ZIF-67 composite were prepared and used to fabricate sensors for the detection of acetone vapour. The prepared materials were characterized using transmission electron microscopy, powder X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy and Fourier-transform infrared spectroscopy. The sensors were tested using an LCR meter under the resistance parameter. It was found that the ZIF-67 sensor did not respond at room temperature, the CNP sensor had a non-linear response to all analytes, and the CNPs/ZIF-67 sensor had an excellent linear response to acetone vapour and was less sensitive to 3-pentanone, 4-methyl-1-hexene, toluene and cyclohexane vapours. However, it was found that ZIF-67 improves carbon soot sensor sensitivity by 155 times, wherein the sensitivity of the carbon soot sensor and carbon soot@ZIF-67 sensor on acetone vapour was found to be 0.0004 and 0.062 respectively. In addition, the sensor was found to be insensitive to humidity and the limit of detection was 484 ppb at room temperature.
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Affiliation(s)
- Lesego Malepe
- Department of Chemical Science, University of Johannesburg PO Box 17011 Doornfontein 2028 Johannesburg South Africa
| | - Tantoh Derek Ndinteh
- Department of Chemical Science, University of Johannesburg PO Box 17011 Doornfontein 2028 Johannesburg South Africa
| | - Patrick Ndungu
- Department of Chemistry, University of Pretoria Private Bag X20 Hatfield 0028 Pretoria South Africa
| | - Messai Adenew Mamo
- Department of Chemical Science, University of Johannesburg PO Box 17011 Doornfontein 2028 Johannesburg South Africa
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Malepe L, Ndinteh DT, Ndungu P, Mamo MA. Selective detection of methanol vapour from a multicomponent gas mixture using a CNPs/ZnO@ZIF-8 based room temperature solid-state sensor. RSC Adv 2022; 12:27094-27108. [PMID: 36276012 PMCID: PMC9501866 DOI: 10.1039/d2ra04665b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 09/12/2022] [Indexed: 10/28/2023] Open
Abstract
Methanol vapour is harmful to human health if it is inhaled, swallowed, or absorbed through the skin. Solid-state gas sensors are a promising system for the detection of volatile organic compounds, unfortunately, they can have poor gas selectivity, low sensitivity, an inferior limit of detection (LOD), sensitivity towards humidity, and a need to operate at higher temperatures. A novel solid-state gas sensor was assembled using carbon nanoparticles (CNPs), prepared from a simple pyrolysis reaction, and zinc oxide@zeolitic imidazolate framework-8 nanorods (ZnO@ZIF-8 nanorods), synthesised using a hydrothermal method. The nanomaterials were characterized using scanning electron microscopy, transmission electron microscopy, powder X-ray diffraction, X-ray photoelectron spectroscopy Raman spectroscopy, and Fourier transform infrared spectroscopy. The ZnO@ZIF-8 nanorods were inactive as a sensor, the CNPs showed some sensor activity, and the CNPs/ZnO@ZIF-8 nanorod composite performed as a viable solid-state sensor. The mass ratio of ZnO@ZIF-8 nanorods within the CNPs/ZnO@ZIF-8 nanorod composite was varied to investigate selectivity and sensitivity for the detection of ethanol, 2-propanol, acetone, ethyl acetate, chloroform, and methanol vapours. The assembled sensor composed of the CNPs/ZnO@ZIF-8 nanorod composite with a mass ratio of 1.5 : 6 showed improved gas sensing properties in the detection of methanol vapour with a LOD of 60 ppb. The sensor is insensitive to humidity and the methanol vapour sensitivity was found to be 0.51 Ω ppm-1 when detected at room temperature.
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Affiliation(s)
- Lesego Malepe
- Department of Chemical Science, University of Johannesburg PO Box 17011, Doornfontein 2028 Johannesburg South Africa
| | - Derek Tantoh Ndinteh
- Department of Chemical Science, University of Johannesburg PO Box 17011, Doornfontein 2028 Johannesburg South Africa
| | - Patrick Ndungu
- Department of Chemistry, University of Pretoria Private Bag X20, Hatfield 0028 Pretoria South Africa
| | - Messai Adenew Mamo
- Department of Chemical Science, University of Johannesburg PO Box 17011, Doornfontein 2028 Johannesburg South Africa
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Chemiresistive gas sensors based on electrospun semiconductor metal oxides: A review. Talanta 2022; 246:123527. [DOI: 10.1016/j.talanta.2022.123527] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/30/2022] [Accepted: 05/02/2022] [Indexed: 11/24/2022]
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Wang B, Gu Y, Chen L, Ji L, Zhu H, Sun Q. Gas sensing devices based on two-dimensional materials: a review. NANOTECHNOLOGY 2022; 33:252001. [PMID: 35290973 DOI: 10.1088/1361-6528/ac5df5] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
Gas sensors have been widely utilized penetrating every aspect of our daily lives, such as medical industry, environmental safety testing, and the food industry. In recent years, two-dimensional (2D) materials have shown promising potential and prominent advantages in gas sensing technology, due to their unique physical and chemical properties. In addition, the ultra-high surface-to-volume ratio and surface activity of the 2D materials with atomic-level thickness enables enhanced absorption and sensitivity. Till now, different gas sensing techniques have been developed to further boost the performance of 2D materials-based gas sensors, such as various surface functionalization and Van der Waals heterojunction formation. In this article, a comprehensive review of advanced gas sensing devices is provided based on 2D materials, focusing on two sensing principles of charge-exchange and surface oxygen ion adsorption. Six types of typical gas sensor devices based on 2D materials are introduced with discussion of latest research progress and future perspectives.
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Affiliation(s)
- Boran Wang
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai 200433, People's Republic of China
| | - Yi Gu
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai 200433, People's Republic of China
| | - Lin Chen
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai 200433, People's Republic of China
| | - Li Ji
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai 200433, People's Republic of China
| | - Hao Zhu
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai 200433, People's Republic of China
| | - Qingqing Sun
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai 200433, People's Republic of China
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Malepe L, Ndungu P, Ndinteh DT, Mamo MA. Nickel Oxide-Carbon Soot-Cellulose Acetate Nanocomposite for the Detection of Mesitylene Vapour: Investigating the Sensing Mechanism Using an LCR Meter Coupled to an FTIR Spectrometer. NANOMATERIALS 2022; 12:nano12050727. [PMID: 35269215 PMCID: PMC8911608 DOI: 10.3390/nano12050727] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/10/2021] [Accepted: 12/14/2021] [Indexed: 12/10/2022]
Abstract
Nanocomposite sensors were prepared using carbon soot (CNPs), nickel oxide nanoparticles (NiO-NPs), and cellulose acetate (CA), which was used to detect and study the sensing mechanism of mesitylene vapour at room temperature. Synthesised materials were characterised using high-resolution transmission electron microscopy (HR-TEM), powder x-ray diffraction (PXRD), Raman spectroscopy, and nitrogen sorption at 77 K. Various sensors were prepared using individual nanomaterials (NiO-NPs, CNPs, and CA), binary combinations of the nanomaterials (CNPs-NiO, CNPs-CA, and NiO-CA), and ternary composites (NiO-CNPs-CA). Among all of the prepared and tested sensors, the ternary nanocomposites (NiO-CNPs-CA) were found to be the most sensitive for the detection of mesitylene, with acceptable response recovery times. Fourier-transform infrared (FTIR) spectroscopy coupled with an LCR meter revealed that the mesitylene decomposes into carbon dioxide.
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Affiliation(s)
- Lesego Malepe
- Energy, Sensors and Multifunctional Nanomaterials Research Group, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Johannesburg 2028, South Africa; (L.M.); (P.N.); (D.T.N.)
| | - Patrick Ndungu
- Energy, Sensors and Multifunctional Nanomaterials Research Group, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Johannesburg 2028, South Africa; (L.M.); (P.N.); (D.T.N.)
| | - Derek Tantoh Ndinteh
- Energy, Sensors and Multifunctional Nanomaterials Research Group, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Johannesburg 2028, South Africa; (L.M.); (P.N.); (D.T.N.)
| | - Messai Adenew Mamo
- Energy, Sensors and Multifunctional Nanomaterials Research Group, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Johannesburg 2028, South Africa; (L.M.); (P.N.); (D.T.N.)
- DST-NRF Centre of Excellence in Strong Materials (CoE-SM), University of the Witwatersrand, Johannesburg 2001, South Africa
- Correspondence: ; Tel.: +27-11-559-9001
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Kadim EJ, Noorden ZA, Adzis Z, Azis N. Nanoparticles Application in High Voltage Insulation Systems. IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION 2021; 28:1380-1399. [DOI: 10.1109/tdei.2021.009531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Ghadiri M, Ghashghaee M, Ghambarian M. Influence of NiO decoration on adsorption capabilities of black phosphorus monolayer toward nitrogen dioxide: periodic DFT calculations. MOLECULAR SIMULATION 2020. [DOI: 10.1080/08927022.2020.1802023] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Mahdi Ghadiri
- Informetrics Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Mohammad Ghashghaee
- Faculty of Petrochemicals, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Mehdi Ghambarian
- Gas Conversion Department, Faculty of Petrochemicals, Iran Polymer and Petrochemical Institute, Tehran, Iran
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Bigiani L, Zappa D, Maccato C, Gasparotto A, Sada C, Comini E, Barreca D. Hydrogen Gas Sensing Performances of p-Type Mn 3O 4 Nanosystems: The Role of Built-in Mn 3O 4/Ag and Mn 3O 4/SnO 2 Junctions. NANOMATERIALS 2020; 10:nano10030511. [PMID: 32168937 PMCID: PMC7153470 DOI: 10.3390/nano10030511] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 02/28/2020] [Accepted: 03/08/2020] [Indexed: 12/19/2022]
Abstract
Among oxide semiconductors, p-type Mn3O4 systems have been exploited in chemo-resistive sensors for various analytes, but their use in the detection of H2, an important, though flammable, energy vector, has been scarcely investigated. Herein, we report for the first time on the plasma assisted-chemical vapor deposition (PA-CVD) of Mn3O4 nanomaterials, and on their on-top functionalization with Ag and SnO2 by radio frequency (RF)-sputtering, followed by air annealing. The obtained Mn3O4-Ag and Mn3O4-SnO2 nanocomposites were characterized by the occurrence of phase-pure tetragonal α-Mn3O4 (hausmannite) and a controlled Ag and SnO2 dispersion. The system functional properties were tested towards H2 sensing, yielding detection limits of 18 and 11 ppm for Mn3O4-Ag and Mn3O4-SnO2 specimens, three orders of magnitude lower than the H2 explosion threshold. These performances were accompanied by responses up to 25% to 500 ppm H2 at 200 °C, superior to bare Mn3O4, and good selectivity against CH4 and CO2 as potential interferents. A rationale for the observed behavior, based upon the concurrence of built-in Schottky (Mn3O4/Ag) and p-n junctions (Mn3O4/SnO2), and of a direct chemical interplay between the system components, is proposed to discuss the observed activity enhancement, which paves the way to the development of gas monitoring equipments for safety end-uses.
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Affiliation(s)
- Lorenzo Bigiani
- Department of Chemical Sciences, Padova University and INSTM, 35131 Padova, Italy; (L.B.); (A.G.)
| | - Dario Zappa
- Sensor Lab, Department of Information Engineering, Brescia University, 25133 Brescia, Italy; (D.Z.); (E.C.)
| | - Chiara Maccato
- Department of Chemical Sciences, Padova University and INSTM, 35131 Padova, Italy; (L.B.); (A.G.)
- Correspondence: ; Tel.: +39-0498275234
| | - Alberto Gasparotto
- Department of Chemical Sciences, Padova University and INSTM, 35131 Padova, Italy; (L.B.); (A.G.)
| | - Cinzia Sada
- Department of Physics and Astronomy, Padova University and INSTM, 35131 Padova, Italy;
| | - Elisabetta Comini
- Sensor Lab, Department of Information Engineering, Brescia University, 25133 Brescia, Italy; (D.Z.); (E.C.)
| | - Davide Barreca
- CNR-ICMATE and INSTM, Department of Chemical Sciences, Padova University, 35131 Padova, Italy;
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