Production of green electricity from strained BaTiO3 and TiO2 ceramics based hydroelectric cells

被引:10
|
作者
Bhakar, Umesh [1 ]
Agarwal, Ashish [1 ]
Sanghi, Sujata [1 ]
Shah, Jyoti [2 ]
Kotnala, Ravinder Kumar [2 ]
机构
[1] Guru Jambheshwar Univ Sci & Technol, Dept Phys, Hisar 125001, Haryana, India
[2] CSIR, Natl Phys Lab, New Delhi 110012, India
关键词
Ceramics; X-ray diffraction; Microstrain; Solid state reaction; Photoluminescence spectroscopy; Hydroelectric cell;
D O I
10.1016/j.matchemphys.2021.124277
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Electricity generation from water molecules dissociation instantly without use of any chemical/light by invented hydroelectric cell (HEC) has emerged a new field of green energy generation without disturbing the environment. Specially engineered nanoporous and oxygen deficient metal oxides have already shown drastic capability of water dissociation at room temperature. In this direction we have heat treated TiO2 (TO) and synthesized BaTiO3 (BTO) in which oxygen defect induced strain through processing has been obtained. Oxygen vacancies produced in TO and BTO have been confirmed by Photoluminescence spectroscopy (PL). The cation-oxygen vacancy pairs (Ti+3-V-o) on the BTO surface provide acid-base pair to attract polar water molecules to get chemidissociated into OH- and H3O+ ions. Further chemisorbed surface hydroxyl ions provide high surface charge potential to physisorbed multilayer of water molecules dissociation and some of H3O+ ions get trapped inside the nanopores. The trapped ions inside nanopores generate enough charge potential to further physi-dissociate adsorbed water molecules. Titanium dioxide samples exhibit increase in strain that has been estimated from the X-ray diffraction results. Bond length and bond angle in both of TiO2 (TO) and BaTiO3 (BTO) decrease while strain increases in their lattice structure. A circular disc of 2 cm diameter and 1 mm thickness of TiO2 and BaTiO3 have been fabricated as hydroelectric cell. BTO based HEC of area 3.14 cm(2) generated maximum current 3.66 mA and voltage 0.975 V. Varying the synthesis parameters to produce more defects in the compound may further increase electricity generation. Perovskite based HEC is very stable, repetitive and eco-friendly technique for portable green electricity generation.
引用
收藏
页数:10
相关论文
共 50 条
  • [1] EFFECTS OF TIO2 ON SEMICONDUCTION OF BATIO3 CERAMICS
    HAYAKAWA, S
    NAGASE, K
    NITTA, T
    [J]. AMERICAN CERAMIC SOCIETY BULLETIN, 1966, 45 (02): : 209 - &
  • [2] TIO2 AGGREGATION AND SINTERING OF BATIO3 CERAMICS
    NOMURA, T
    YAMAGUCHI, T
    [J]. AMERICAN CERAMIC SOCIETY BULLETIN, 1980, 59 (04): : 453 - &
  • [3] SOLUBILITY OF TIO2 IN BATIO3
    SHARMA, RK
    CHAN, NH
    SMYTH, DM
    [J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1981, 64 (08) : 448 - 451
  • [4] DECOMPOSITION OF BATIO3 AND TIO2 CERAMICS DURING THERMAL OXIDIZING TREATMENT
    KVANTOV, MA
    KOSTIKOV, YP
    TESLENKO, SP
    YARMARKIN, VK
    [J]. INORGANIC MATERIALS, 1985, 21 (03) : 408 - 410
  • [5] Liquid phase and electrical conductivity in TiO2 added BaTiO3 ceramics
    Miura, S
    Huybrechts, B
    Takata, M
    [J]. JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 1999, 107 (05) : 469 - 471
  • [6] Formation of BaTiO3 from barium oxalate and TiO2
    Bera, J
    Sarkar, D
    [J]. JOURNAL OF ELECTROCERAMICS, 2003, 11 (03) : 131 - 137
  • [7] Formation of BaTiO3 from Barium Oxalate and TiO2
    J. Bera
    D. Sarkar
    [J]. Journal of Electroceramics, 2003, 11 : 131 - 137
  • [8] TOPOTAXY BETWEEN TIO2 AND BATIO3
    SUYAMA, Y
    ODA, Y
    KATO, A
    [J]. CHEMISTRY LETTERS, 1979, (08) : 987 - 988
  • [9] Efficiency and environmental stability of TiO2 based solar cells for green electricity production
    Singh, Mahendra
    Singh, Deepak
    Mishra, Vinay
    Singh, Vijay
    Singh, Sunita
    Dev, Rahul
    Singh, Dhananjay
    [J]. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING, 2024, 22 (01) : 69 - 77
  • [10] Microstructure, optical, photoluminescence properties and the intrinsic mechanism of photoluminescence and photocatalysis for the BaTiO3, BaTiO3/TiO2 and BaTiO3/TiO2/CeO2 smart composites
    Wang, Shifa
    Tang, Shengnan
    Gao, Huajing
    Chen, Xiangyu
    Liu, Hao
    Yu, Chuan
    Yin, Zijuan
    Zhao, Xinxin
    Pan, Xudong
    Yang, Hua
    [J]. OPTICAL MATERIALS, 2021, 118