Synthesising methods of layered double hydroxides and its use in the fabrication of dye Sensitised solar cell (DSSC): A short review

14th International Conference on Science, Engineering and Technology

自然科学;工业技术

George, Giphin^1 ; Saravanakumar, M.P.^1

School of Civil and Chemical Engineering, VIT University, Vellore

Tamil Nadu

632014, India^1

关键词: Chromium chloride;    Interlayer anions;    Interlayer spaces;    Layered double hydroxides;    Layered Structures;    Octahedral structures;    Sorbent materials;    Trivalent cations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/263/3/032020/pdf
DOI  :  10.1088/1757-899X/263/3/032020

来源: IOP

【 摘 要 】

The layered double hydroxides (LDH) which are anionic clay substances comprising of stacked cationic layers and interlayer anions. The cationic sheets contain octahedral structure consisting the divalent and trivalent ions in the center and hydroxyl bunches in the corners, gathered by three bonding with the neighbouring octahedra on every side of the layer. The ratio between the quantity of cations and OH-ions is 2:1, so a positive charge shows up on the layer because of the presence of trivalent cations. The interlayer space gives the compensation anions and water molecules, assuring a balanced out layered structure. The LDH materials were successfully synthesised from magnesium, aluminium, zinc and chromium chloride salts utilizing the co-precipitation technique. A Zn-Al LDH was researched as a potential sorbent material. This article reviews the recent advances in the preparation and intercalation of layered double hydroxides and its application in the fabrication of Dye Sensitized Solar Cell (DSSC).