1
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Hydrothermally developed SnO2 nanoparticles and its photocatalytic degradation of Alizarin red S, Brilliant green and Methyl orange dyes and electrochemical performances. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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2
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Wei Z, Du Y, Lü XF, Wang W, Del Sole R, Mele G, Jiang ZY. High-performance Fe3O4-terephthalaldehyde magnetic-nanocomposite for removal phenanthrene and 9-phenanthrol: A comprehensive experimental and theoretical analysis. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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3
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Roguai S, Djelloul A. Elaboration, characterization and applications of SnO2, 2 %Gd-SnO2 and 2 %Gd-9 %F-SnO2 thin films for the photocatalytic degradation of MB by USP method. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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4
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Babaahmadi V, Montazer M. Synthesis and daylight photocatalytic properties of graphene/self-doped tin oxide/silver ternary nanocomposite on fabric surface. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113561] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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5
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Chen Q, Chen ZY, Wu JH. Mechanistic Insight into the ZnO‐Assisted Growth of Sn
6
O
4
(OH)
4
Three‐Dimensional Dendritic Hexapods. ChemistrySelect 2021. [DOI: 10.1002/slct.202103186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qi Chen
- College of Chemistry Chemical Engineering and Materials Science Soochow University 199 RenAi Road Suzhou Jiangsu China 215123
| | - Zhi Yun Chen
- College of Chemistry Chemical Engineering and Materials Science Soochow University 199 RenAi Road Suzhou Jiangsu China 215123
| | - Ji Hong Wu
- College of Chemistry Chemical Engineering and Materials Science Soochow University 199 RenAi Road Suzhou Jiangsu China 215123
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6
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Hetero-mixed TiO2-SnO2 interfaced nano-oxide catalyst with enhanced activity for selective oxidation of furfural to maleic acid. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108637] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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7
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Chen Z, Chen GE, Xie HY, Xu ZL, Li YJ, Wan JJ, Liu LJ, Mao HF. Photocatalytic antifouling properties of novel PVDF membranes improved by incorporation of SnO2-GO nanocomposite for water treatment. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118184] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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8
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Liu XY, Li XP, Zhao RX, Zhang H. A facile sol–gel method based on urea–SnCl 2 deep eutectic solvents for the synthesis of SnO 2/SiO 2 with high oxidation desulfurization activity. NEW J CHEM 2021. [DOI: 10.1039/d1nj02526k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The n%-SnO2/SiO2 (n = 2, 4, 6) supported catalyst was prepared by the sol–gel and calcination method. Compared with the traditional impregnation method, the catalyst prepared by sol–gel method has higher oxidative desulfurization activity.
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Affiliation(s)
- Xiao-yi Liu
- College of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China
| | - Xiu-ping Li
- College of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China
| | - Rong-xiang Zhao
- College of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China
| | - Hao Zhang
- College of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, China
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9
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Malibo PM, Makgwane PR, Baker PG. Heterostructured Redox‐Active V
2
O
5
/SnO
2
Oxide Nanocatalyst for Aqueous‐Phase Oxidation of Furfural to Renewable Maleic Acid. ChemistrySelect 2020. [DOI: 10.1002/slct.201904852] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Petrus M. Malibo
- Centre for Nanostructured and Advanced Materials (CeNAM)Council for Scientific and Industrial Research (CSIR) Pretoria 0001 South Africa
- Department of ChemistryUniversity of the Western Cape, Bag X17, Robert Sobukwe Drive Bellville 7535 South Africa
| | - Peter R. Makgwane
- Centre for Nanostructured and Advanced Materials (CeNAM)Council for Scientific and Industrial Research (CSIR) Pretoria 0001 South Africa
- Department of ChemistryUniversity of the Western Cape, Bag X17, Robert Sobukwe Drive Bellville 7535 South Africa
| | - Priscilla G. Baker
- Department of ChemistryUniversity of the Western Cape, Bag X17, Robert Sobukwe Drive Bellville 7535 South Africa
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10
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Schreiber E, Petel BE, Matson EM. Acid-Induced, Oxygen-Atom Defect Formation in Reduced Polyoxovanadate-Alkoxide Clusters. J Am Chem Soc 2020; 142:9915-9919. [PMID: 32433883 DOI: 10.1021/jacs.0c03864] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Here, we present the first example of acid-induced, oxygen-atom abstraction from the surface of a polyoxometalate cluster. Generation of the oxygen-deficient vanadium oxide, [V6O6(OC2H5)12]1-, was confirmed via independent synthesis. Spectroscopic analysis using infrared and electronic absorption spectroscopies affords resolution of the electronic structure of the oxygen-deficient cluster (oxidation state distribution = [VIIIVIV5]). This work has direct implications toward the elucidation of possible mechanisms of acid-assisted vacancy formation in bulk transition metal oxides, in particular electron-proton codoping that has recently been described for vanadium oxide (VO2). Ultimately, these molecular models deepen our understanding of proton-dependent redox chemistry of transition metal oxide surfaces.
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Affiliation(s)
- Eric Schreiber
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Brittney E Petel
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Ellen M Matson
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
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11
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Mao Y, Jiang L, Hu S, Tang J, Luo Y, Ding X, Chen G, Yang J. A lanthanide ion-doped Ba 3Sc 2F 12 phosphor: hydrothermal synthesis, morphological control, energy transfer, and temperature-sensing performance. Dalton Trans 2020; 49:5881-5889. [PMID: 32307489 DOI: 10.1039/d0dt01003k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ba3Sc2F12 crystals were synthesized by a facile one-step hydrothermal method with Ba/Sc raw material in a ratio of 3 : 2. With the F/Sc ratio increasing from 4 to 8, the obtained crystal's morphology evolved gradually from a strip to a chocolate shape; further, the use of the additives, such as CTAB and EDTA, the obtained crystal's morphology changed from strip to cubic. The energy transfer of Ce3+→ Tb3+ in the Ba3Sc2F12 host was also explored, and it was found to belong to a dipole-dipole interaction mechanism; the color of the light could be adjusted from blue-violet to green due to the different energy transfer efficiencies at different Ce3+ and Tb3+ ion-doping concentrations. Because of the thermal coupling level of Er3+ (2H11/2→4I15/2 and 4S3/2→4I15/2), Ba3Sc2F12:14%Yb3+,2%Er3+ phosphors showed an excellent temperature-sensing ability with SA(max) = 0.0043 K-1 and Tmax = 523 K, which are much better than the previously reported values for Yb3+/Er3+ co-doped systems. The as-prepared lanthanide ion-doped phosphors might have potential to serve as color light/displays and temperature control/sensors.
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Affiliation(s)
- Yini Mao
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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12
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SnO2-SnS2 nanocomposite as electrocatalyst for simultaneous determination of depression biomarkers serotonin and tryptophan. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.03.046] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Facile Synthesis and Characterization of Two Dimensional SnO2-Decorated Graphene Oxide as an Effective Counter Electrode in the DSSC. Catalysts 2019. [DOI: 10.3390/catal9020139] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
SnO2-decorated graphene oxide (SnO2/GO) was synthesized by the modified Hummers’s method, followed by a chemical incorporation of SnO2 nanoparticles. Then, the nanocomposite was used as anon-precious counter electrode in a dye-sensitized solar cell (DSSC). Although GO has a relatively poor electrical conductivity depending essentially on the extent of the graphite oxidation, presence of SnO2 enhanced its structural and electrochemical properties. The Pt-free counter electrode exhibited a distinct catalytic activity toward iodine reduction and a low resistance to electron transfer. Moreover, the decorated GO provided extra active sites for reducing I3− at the interface of the CE/electrolyte. In addition, the similarity of the dopant in the GO film and the fluorine-doped tin oxide (FTO) substrate promoted a strong assimilation between them. Therefore, SnO2-decorated GO, as a counter electrode, revealed an enhanced photon to electron conversion efficiency of 4.57%. Consequently, the prepared SnO2/GO can be sorted as an auspicious counter electrode for DSSCs.
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14
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Ali A, Ammar M, Yahya Z, Waqas M, Jamal MA, Salhabi EHM. A honeycomb-like ZnO/SnO2 nanocomposite on nickel foam for high-performance asymmetric supercapacitors. NEW J CHEM 2019. [DOI: 10.1039/c9nj01270b] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, a honeycomb-like ZnO/SnO2 nanocomposite was synthesized on nickel foam (NF) using a single-step hydrothermal route for achieving good electrochemical performance.
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Affiliation(s)
- Awais Ali
- Department of Chemical Engineering Technology
- Government College University
- Faisalabad 38000
- Pakistan
| | - Muhammad Ammar
- Department of Chemical Engineering Technology
- Government College University
- Faisalabad 38000
- Pakistan
- University of Chinese Academy of Sciences
| | - Zaid Yahya
- Department of Chemical Engineering Technology
- Government College University
- Faisalabad 38000
- Pakistan
| | - Muhammad Waqas
- University of Chinese Academy of Sciences
- Beijing
- China
- Institute of Engineering Thermophysics
- Chinese Academy of Sciences
| | - Muhammad Ali Jamal
- Department of Chemical Engineering Technology
- Government College University
- Faisalabad 38000
- Pakistan
| | - Esmail Husein M. Salhabi
- University of Chinese Academy of Sciences
- Beijing
- China
- Institute of Process Engineering
- Chinese Academy of Sciences
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15
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Mani R, Jiang H, Gupta SK, Li Z, Duan X. Role of Synthesis Method on Luminescence Properties of Europium(II, III) Ions in β-Ca 2SiO 4: Probing Local Site and Structure. Inorg Chem 2018; 57:935-950. [PMID: 29356513 DOI: 10.1021/acs.inorgchem.7b01878] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The europium ion probes the symmetry disorder in the crystal structure, although the distortion due to charge compensation in the case of aliovalent dopant remains interesting, especially preparation involves low and high temperatures. This work studies the preparation of the β-Ca2SiO4 (from here on C2S) particle from Pechini (C2SP) and hydrothermal (C2SH) methods, and its luminescence variance upon doping with Eu2+ and Eu3+ ions. The blue shift of the charge-transfer band (CTB) in the excitation spectra indicates a larger Eu3+-O2- distance in Eu3+ doped C2SH. The changes in vibrational frequencies due to stretching and bending vibrations in the FTIR and the Raman spectra and binding energy shift in the XPS analysis confirmed the distorted SiO44- tetrahedra in C2SH. The high hydrothermal temperature and pressure produce distortion, which leads to symmetry lowering although doping of aliovalent ion may slightly change the position of the Ca atoms. The increasing asymmetry ratio value from C2SP to C2SH clearly indicates that the europium ion stabilized in a more distorted geometry. It is also supported by Judd-Ofelt analysis. The concentration quenching and site-occupancy of Eu3+ ions in two nonequivalent sites of C2S were discussed. The charge state and concentration of europium ions in C2SP and C2SH were determined using X-ray photoelectron spectroscopy measurements. The C2S particles were studied by X-ray powder diffraction, FTIR, Raman, BET surface area, TGA/DTA, electron microscopy, XPS, and luminescence spectroscopy. The impact of citrate ion on the morphology and particle size of C2SH has been hypothesized on the basis of the microscopy images. This study provides insights that are needed for further understanding the structure of C2S and thereby improves the applications in optical and biomedical areas and cement hydration.
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Affiliation(s)
- Rajaboopathi Mani
- State Key Laboratory of Crystal Materials, Shandong University , Jinan, Shandong 250100, China
| | - Huaidong Jiang
- State Key Laboratory of Crystal Materials, Shandong University , Jinan, Shandong 250100, China.,School of Physical Science and Technology, ShanghaiTech University , Shanghai 201210, China
| | - Santosh Kumar Gupta
- Radiochemistry Division, Bhabha Atomic Research Centre Trombay , Mumbai 400085, India
| | - Ziqing Li
- State Key Laboratory of Crystal Materials, Shandong University , Jinan, Shandong 250100, China
| | - Xiulan Duan
- State Key Laboratory of Crystal Materials, Shandong University , Jinan, Shandong 250100, China
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16
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Goutham S, Bykkam S, Sadasivuni KK, Kumar DS, Ahmadipour M, Ahmad ZA, Rao KV. Room temperature LPG resistive sensor based on the use of a few-layer graphene/SnO2 nanocomposite. Mikrochim Acta 2017; 185:69. [DOI: 10.1007/s00604-017-2537-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 11/09/2017] [Indexed: 10/18/2022]
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17
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Meena Kumari M, Philip D. Synthesis of biogenic SnO2 nanoparticles and evaluation of thermal, rheological, antibacterial and antioxidant activities. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2014.10.034] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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18
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Zhu ZF, Zhou JQ, Wang XF, He ZL, Liu H. Effect of pH on photocatalytic activity of SnO2 microspheres via microwave solvothermal route. ACTA ACUST UNITED AC 2014. [DOI: 10.1179/1433075x12y.0000000043] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- Z. F. Zhu
- School of Materials Science and EngineeringShaanxi University of Science and Technology, Xi’an 710021, China
| | - J. Q. Zhou
- School of Materials Science and EngineeringShaanxi University of Science and Technology, Xi’an 710021, China
| | - X. F. Wang
- School of Materials Science and EngineeringShaanxi University of Science and Technology, Xi’an 710021, China
| | - Z. L. He
- Electronic Materials Research LaboratorySchool of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China
| | - H. Liu
- School of Materials Science and EngineeringShaanxi University of Science and Technology, Xi’an 710021, China
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19
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Venugopal B, Nandan B, Ayyachamy A, Balaji V, Amirthapandian S, Panigrahi BK, Paramasivam T. Influence of manganese ions in the band gap of tin oxide nanoparticles: structure, microstructure and optical studies. RSC Adv 2014. [DOI: 10.1039/c3ra46378h] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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20
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Ghosh S, Das K, Chakrabarti K, De SK. Effect of oleic acidligand on photophysical, photoconductive and magnetic properties of monodisperse SnO2quantum dots. Dalton Trans 2013; 42:3434-46. [DOI: 10.1039/c2dt31764h] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Caglar M, Atar KC. Effect of both deposition temperature and indium doping on the properties of sol-gel dip-coated SnO2 films. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 96:882-888. [PMID: 22935595 DOI: 10.1016/j.saa.2012.07.108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 07/21/2012] [Accepted: 07/26/2012] [Indexed: 06/01/2023]
Abstract
Using indium chloride as an In source, In-doped SnO(2) films were fabricated by sol-gel method through dip-coating on borofloat glass substrates. The undoped SnO(2) films were deposited in air between 400 and 600 °C to get optimum deposition temperature in terms of crystal quality and hence In-doped SnO(2) films were deposited in air at 600 °C. The effect of both deposition temperature and In content on structural, morphological, optical and electrical properties was investigated. The crystalline structure and orientation of the films were investigated by X-ray diffraction (XRD) and surface morphology was studied by a field emission scanning electron microscope (FESEM). The compositional analysis of the films was confirmed by energy dispersive X-ray spectrometer (EDS). The absorption band edge of the SnO(2) films shifted from 3.88 to 3.66 eV with In content. The van der Pauw method was used to measure the sheet resistance of the films. The sheet resistance was affected significantly by deposition temperature and In content.
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Affiliation(s)
- Mujdat Caglar
- Anadolu University, Faculty of Science, Department of Physics, 26470 Eskisehir, Turkey.
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Taniya K, Jinno H, Kishida M, Ichihashi Y, Nishiyama S. Preparation of Sn-modified silica-coated Pt catalysts: A new PtSn bimetallic model catalyst for selective hydrogenation of crotonaldehyde. J Catal 2012. [DOI: 10.1016/j.jcat.2012.01.006] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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23
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An HH, Lee SJ, Baek SH, Han WB, Kim YH, Yoon CS, Suh SH. Effect of plasma etching on photoluminescence of SnOx/Sn nanoparticles deposited on DOPC lipid membrane. J Colloid Interface Sci 2012; 368:257-62. [DOI: 10.1016/j.jcis.2011.11.076] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Revised: 10/31/2011] [Accepted: 11/01/2011] [Indexed: 11/28/2022]
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Ghiasi M, Malekzadeh A. Synthesis of CaCO3 nanoparticles via citrate method and sequential preparation of CaO and Ca(OH)2 nanoparticles. CRYSTAL RESEARCH AND TECHNOLOGY 2012. [DOI: 10.1002/crat.201100240] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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Uchiyama H, Shirai Y, Kozuka H. Hydrothermal synthesis of flower-like SnO2 particles consisting of single-crystalline nanorods through crystal growth in the presence of poly(acrylic acid). RSC Adv 2012. [DOI: 10.1039/c2ra01037b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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26
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Zhao B, Zhang G, Song J, Jiang Y, Zhuang H, Liu P, Fang T. Bivalent tin ion assisted reduction for preparing graphene/SnO2 composite with good cyclic performance and lithium storage capacity. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.06.037] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Tian Z, Liang C, Liu J, Zhang H, Zhang L. Reactive and photocatalytic degradation of various water contaminants by laser ablation-derived SnOx nanoparticles in liquid. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm12502h] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Davar F, Mohandes F, Salavati-Niasari M. A novel chelating acid-assisted thermolysis procedure for preparation of tin oxide nanoparticles. Polyhedron 2010. [DOI: 10.1016/j.poly.2010.08.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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JIANG H, DAI H, XIA Y, HE H. Synthesis and Characterization of Wormhole-Like Mesoporous SnO<SUB>2</SUB> with High Surface Area. CHINESE JOURNAL OF CATALYSIS 2010. [DOI: 10.3724/sp.j.1088.2010.90914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
AbstractIn this project, nanocrystalline SnO2 powders were successfully prepared by (a) citrate sol-gel and (b) direct precipitation methods. Powders were characterized using thermal analysis techniques (DTA-TG-DSC), X-ray powder Diffraction (XRD), surface area (BET) and electrical conductivity measurements. XRD patterns showed the presence of the cassiterite structure. SnO2 particles, prepared through sol-gel method exhibit crystallite sizes in the range from 3.1 to 22.3 nm when the gel is heat treated at different temperatures up to 900°C. SnO2 nanocrystallites prepared by the precipitation method are comparatively larger in size. The higher specific surface area was obtained for the powder prepared using sol-gel method and the obtained average grain size (d) is relatively large compared with that of the average crystallite size. The powders show a semiconducting behavior with increasing temperature. The higher conductivity obtained for SnO2 prepared by sol-gel method can be attributed to their smaller average crystallite size. XRD of alumina doped powder exhibits finer particles than pure SnO2. TEM images showed that the particles are spherical in shape and consist of a core of SnO2 surrounded by a coating of alumina. The calculated surface area was found to decrease with temperature increases. Due to the effective role of Al2O3 additive as a grain growth inhibitor for the matrix grains, the observed surface area for the coated materials are predominantly higher than for the uncoated materials.
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31
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Synthesis and Characterization of Wormhole-Like Mesoporous SnO2 with High Surface Area. CHINESE JOURNAL OF CATALYSIS 2010. [DOI: 10.1016/s1872-2067(09)60052-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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32
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Wang H, Sun F, Zhang Y, Li L, Chen H, Wu Q, Yu JC. Photochemical growth of nanoporous SnO2 at the air–water interface and its high photocatalytic activity. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b926930d] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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