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Liu H, Li S, Wang L, Yang S, Zhang Y. Synthesis and characterization of ZrO 2-ZnO heterojunction composite for isopropanol detection. RSC Adv 2024; 14:2983-2992. [PMID: 38239449 PMCID: PMC10794953 DOI: 10.1039/d3ra06701g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 12/23/2023] [Indexed: 01/22/2024] Open
Abstract
We prepared ZrO2-ZnO heterojunction composites by a simple hydrothermal method as materials sensitive to isopropanol gas. The 5% ZrO2-ZnO sample presented a uniform rod-like structure. The optimum operating temperature, sensitivity and response/recovery times were measured to investigate the response of ZrO2-ZnO composites to isopropanol. The sensor based on 5% ZrO2-ZnO composites at an optimum temperature of 260 °C had a response to 100 ppm isopropanol of up to 172.46, which was about 3.6 times higher than that of pure ZnO. The sensor also exhibited fast response and recovery times of 5 s and 11 s, respectively. The gas-sensitive properties can be attributed to the rod-like structure, heterojunction structure and catalytic activity of ZrO2. These results would contribute in expanding the application of ZrO2 in gas sensors.
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Affiliation(s)
- Hang Liu
- School of Electrical and Computer Engineering, Jilin Jianzhu University Changchun 130118 China
| | - Shenghui Li
- School of Electrical and Computer Engineering, Jilin Jianzhu University Changchun 130118 China
| | - Lvqing Wang
- School of Electrical and Computer Engineering, Jilin Jianzhu University Changchun 130118 China
| | - Shengjue Yang
- School of Electrical and Computer Engineering, Jilin Jianzhu University Changchun 130118 China
| | - Yuhong Zhang
- School of Electrical and Computer Engineering, Jilin Jianzhu University Changchun 130118 China
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Yan Y, Ma Z, Sun J, Bu M, Huo Y, Wang Z, Li Y, Hu N. Surface microstructure-controlled ZrO2 for highly sensitive room-temperature NO2 sensors. NANO MATERIALS SCIENCE 2021. [DOI: 10.1016/j.nanoms.2021.02.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Zhang L, Li X, Lu J, Zhang L, Hu S, Gong H, Liu X, Mao B, Zhu X, Liu Z, Yang W. In situ Dispersed Nano-Au on Zr-Suboxides as Active Cathode for Direct CO 2 Electroreduction in Solid Oxide Electrolysis Cells. NANO LETTERS 2021; 21:6952-6959. [PMID: 34355915 DOI: 10.1021/acs.nanolett.1c02227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
CO2 electrochemical reduction in solid oxide electrolysis cells is an effective way to combine CO2 conversion and renewable electricity storage. A Au layer is often used as a current collector, whereas Au nanoparticles are rarely used as a cathode because it is difficult to keep nanosized Au at high temperatures. Here we dispersed a Au layer into Au nanoparticles (down to 2 nm) at 800 °C by applying high voltages. A 75-fold decrease in the polarization resistance was observed, accompanied by a 38-fold improvement in the cell current density. Combining electronic microscopy, in situ near-ambient pressure X-ray photoelectron spectroscopy, and theoretical calculations, we found that the interface between the Au layer and the electrolyte (yttria-stabilized zirconia (YSZ)) was reconstructed into nano-Au/Zr-suboxide interfaces, which are active sites that show a much lower reaction activation energy than that of the Au/YSZ interface. The formation of Zr-suboxides promotes Au dispersion and Au nanoparticle stabilization due to the strong interaction between Au and Zr-suboxides.
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Affiliation(s)
- Lixiao Zhang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaobao Li
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianmin Lu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Liming Zhang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shiqing Hu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huimin Gong
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xuan Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Baohua Mao
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xuefeng Zhu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi Liu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- ShanghaiTech University, 393 Huaxia ZhongRoad, Shanghai 201210, China
| | - Weishen Yang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Smirnov MY, Kalinkin AV, Sorokin AM, Bukhtiyarov VI. Room Temperature Oxidation of the Surface of Highly Oriented Pyrolytic Graphite (HOPG) with Nitrogen Dioxide in the Presence of Supported Palladium Particles. KINETICS AND CATALYSIS 2020. [DOI: 10.1134/s0023158420040126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Enhanced fluoride removal by hierarchically porous carbon foam monolith with high loading of UiO-66. J Colloid Interface Sci 2019; 542:269-280. [PMID: 30763894 DOI: 10.1016/j.jcis.2019.02.027] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 01/31/2019] [Accepted: 02/06/2019] [Indexed: 11/21/2022]
Abstract
Environmental concern associated with excess fluoride has intrigued the unceasing exploration of new multifunctional hybrid materials to mitigate any undesirable consequence to human health. Herein, a novel hybrid monolith has been successfully fabricated via a facile in-situ growth strategy for highly efficient defluoridation from contaminated waters, in which homogeneously dispersed UiO-66 particles are perfectly anchored on three dimensional (3D) porous carbon foam (CF). Benefiting from fully exposed active sites, excellent pore accessibility and efficient mass transport, the integrated UiO-66/CF hybrid monolith exhibits fast adsorption kinetics, and outstanding uptake capacity toward fluoride as high as 295 mg g-1, which greatly outperforms the previously reported adsorbents. Furthermore, the fluoride removal efficiency of the spent monolith can reach up to 70% after four cycles, accompanied by facile separation nature and outstanding water stability. More significantly, the resulting UiO-66/CF packed column (0.36 g) can continuously treat 400 mL of F- solution with 6.2 mg L-1 before the breakthrough point occurs, highlight its potential feasibility for fluoride removal in the practical applicability.
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Smirnov MY, Vovk EI, Kalinkin AV, Bukhtiyarov VI. Effect of the composition of the reaction atmosphere on the thermal stability of highly dispersed gold particles on an oxide support (Au/Al2O3 system). KINETICS AND CATALYSIS 2016. [DOI: 10.1134/s002315841606015x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Subramanian A, Annamalai A, Lee HH, Choi SH, Ryu J, Park JH, Jang JS. Trade-off between Zr Passivation and Sn Doping on Hematite Nanorod Photoanodes for Efficient Solar Water Oxidation: Effects of a ZrO2 Underlayer and FTO Deformation. ACS APPLIED MATERIALS & INTERFACES 2016; 8:19428-19437. [PMID: 27420603 DOI: 10.1021/acsami.6b04528] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Herein we report the influence of a ZrO2 underlayer on the PEC (photoelectrochemical) behavior of hematite nanorod photoanodes for efficient solar water splitting. Particular attention was given to the cathodic shift in onset potential and photocurrent enhancement. Akaganite (β-FeOOH) nanorods were grown on ZrO2-coated FTO (fluorine-doped tin oxide) substrates. Sintering at 800 °C transformed akaganite to the hematite (α-Fe2O3) phase and induced Sn diffusion into the crystal structure of hematite nanorods from the FTO substrates and surface migration, shallow doping of Zr atoms from the ZrO2 underlayer. The ZrO2 underlayer-treated photoanode showed better water oxidation performance compared to the pristine (α-Fe2O3) photoanode. A cathodic shift in the onset potential and photocurrent enhancement was achieved by surface passivation and shallow doping of Zr from the ZrO2 underlayer, along with Sn doping from the FTO substrate to the crystal lattice of hematite nanorods. The Zr based hematite nanorod photoanode achieved 1 mA/cm(2) at 1.23 VRHE with a low turn-on voltage of 0.80 VRHE. Sn doping and Zr passivation, as well as shallow doping, were confirmed by XPS, Iph, and M-S plot analyses. Electrochemical impedance spectroscopy revealed that the presence of a ZrO2 underlayer decreased the deformation of FTO substrate, improved electron transfer at the hematite/FTO interface and increased charge-transfer resistance at the electrolyte/hematite interface. This is the first systematic investigation of the effects of Zr passivation, shallow doping, and Sn doping on hematite nanorod photoanodes through application of a ZrO2 underlayer on the FTO substrate.
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Affiliation(s)
- Arunprabaharan Subramanian
- Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Chonbuk National University , Iksan 570-752, Republic of Korea
| | - Alagappan Annamalai
- Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Chonbuk National University , Iksan 570-752, Republic of Korea
| | - Hyun Hwi Lee
- Pohang Accelerator Laboratory (PAL), Pohang University of Science and Technology (POSTECH) , Pohang 790-784, Republic of Korea
| | - Sun Hee Choi
- Pohang Accelerator Laboratory (PAL), Pohang University of Science and Technology (POSTECH) , Pohang 790-784, Republic of Korea
| | - Jungho Ryu
- Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources (KIGAM) , Daejeon 305-350, Korea
| | - Jung Hee Park
- Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Chonbuk National University , Iksan 570-752, Republic of Korea
| | - Jum Suk Jang
- Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Chonbuk National University , Iksan 570-752, Republic of Korea
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Liang MX, Zhao L, Jia J, Wu HS. Aun (n = 1–16) clusters on the ZrO2(111) surface: a DFT+U investigation. Phys Chem Chem Phys 2016; 18:30491-30497. [DOI: 10.1039/c6cp05977e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Aun (n = 1–16) clusters supported on the monoclinic ZrO2 surface prefer quasi-planar geometries that lay flat on the surface.
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Affiliation(s)
- Ming-Xing Liang
- The School of Chemical and Material Science
- Shanxi Normal University
- Linfen
- China
| | - Liang Zhao
- The School of Chemical and Material Science
- Shanxi Normal University
- Linfen
- China
| | - Jianfeng Jia
- The School of Chemical and Material Science
- Shanxi Normal University
- Linfen
- China
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education
| | - Hai-Shun Wu
- The School of Chemical and Material Science
- Shanxi Normal University
- Linfen
- China
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education
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Song W, Tao S, Yu Y, Du X, Wang S. Preparing magnetic multicomponent catalysts via a bio-inspired assembly for heterogeneous reactions. RSC Adv 2016. [DOI: 10.1039/c6ra12088a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
A facile synthetic approach for preparing magnetic porous catalysts, from various inorganic compounds loaded by a pyrogallic acid (PG) assisted layer-by-layer (LbL) coating.
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Affiliation(s)
- Wentong Song
- Department of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Shengyang Tao
- Department of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Yongxian Yu
- Department of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Xuanlu Du
- Department of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Shuo Wang
- Department of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
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Violi IL, Zelcer A, Bruno MM, Luca V, Soler-Illia GJAA. Gold nanoparticles supported in zirconia-ceria mesoporous thin films: a highly active reusable heterogeneous nanocatalyst. ACS APPLIED MATERIALS & INTERFACES 2015; 7:1114-1121. [PMID: 25522210 DOI: 10.1021/am5065188] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Gold nanoparticles (NP) trapped in the mesopores of mixed zirconia-ceria thin films are prepared in a straightforward and reproducible way. The films exhibit enhanced stability and excellent catalytic activity in nitro-group reduction by borohydride and electrocatalytic activity in CO and ethanol oxidation and oxygen reduction.
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Affiliation(s)
- Ianina L Violi
- Gerencia Química, Centro Atómico Constituyentes, ‡Gerencia Física, and §Programa Nacional de Gestión de Residuos Radioactivos, Comisión Nacional de Energía Atómica (CAC-CNEA) , Av. Gral Paz 1499, San Martín, Buenos Aires, Argentina
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Yang CS, Jeong HK. Electronic structure of cyclodextrin decorated carbon nanotube films. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.06.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Banerjee M, Seidel RW, Winter M, Becker HW, Rogalla D, Devi A. Novel β-ketoiminato complexes of zirconium: synthesis, characterization and evaluation for solution based processing of ZrO2 thin films. Dalton Trans 2014; 43:2384-96. [PMID: 24302073 DOI: 10.1039/c3dt52335g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Treatment of tetrakis(diethylamido)zirconium(IV); [Zr(NEt2)4] with a series of β-ketoimines ({[RHN]C(CH3)=C(H)C(CH3)=O} where R is a functionalized side-chain; 4-(2-methoxyethylamino)pent-3-en-2-one, Hmeap; 4-(3-methoxypropylamino)pent-3-en-2-one, Hmpap; 4-(2-(dimethylamino)ethylamino)pent-3-en-2-one, Hdeap; 4-(3-(dimethylamino)propylamino)pent-3-en-2-one, Hdpap) leads to an amine substitution reaction that yielded novel monomeric heteroleptic mixed amido-ketoiminato complexes of the type bis(4-(2-methoxyethylamino)pent-3-en-2-onato)bis(diethylamido)zirconium(IV) (1), bis(4-(3-methoxypropylamino)pent-3-en-2-onato)bis(diethylamido)zirconium(IV) (2), and bis(4-(3-(dimethylamino)propylamino)pent-3-en-2-onato)bis(diethylamido)zirconium(IV) (3), and eight-coordinated homoleptic complexes tetrakis(4-(2-methoxyethylamino)pent-3-en-2-onato)zirconium(IV) (4) and tetrakis(4-(2-(dimethylamino)ethylamino)pent-3-en-2-onato)zirconium(IV) (5), depending on the ratio of the ligand to zirconium. Adopting a similar strategy with zirconium alkoxide, namely [Zr(O(i)Pr)4·(i)PrOH], with β-ketoimine Hmeap, leads to the formation of a dimer, bis(μ2-isopropoxo)bis(4-(2-methoxyethylamino)pent-3-en-2-onato)tetrakis(isopropoxo)dizirconium(IV) (6). The newly synthesised complexes were characterized by NMR spectroscopy, mass spectrometry, single crystal X-ray diffraction, elemental analysis and thermal analysis. The low decomposition temperature facilitated by the stepwise elimination of the ketominate ligand from the complex and the stability of the complexes obtained in air as well as in solution makes them highly suitable for solution based processing of ZrO2 thin films, which is demonstrated using compound 5 on Si(100) substrates. High quality ZrO2 films were obtained and were investigated for their structure, morphology, composition and optical properties. Low temperature crystallisation of ZrO2 is achieved by a simple chemical deposition process using the new class of Zr precursors and the films exhibit an optical transmittance above 90%.
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Affiliation(s)
- Manish Banerjee
- Inorganic Materials Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, 44801 Bochum, Germany.
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