Electrodeposition of an ultrathin TiO2 coating using a deep eutectic solvent based on choline chloride

被引：6

作者：

Pereira, Nuno M. ^{[1
]}

Pereira, Carlos M. ^{[1
]}

Araujo, Joao P. ^{[2
,3
]}

Fernando Silva, A. ^{[1
]}

机构：

[1] Univ Porto, Fac Ciencias, Dept Quim & Bioquim, Ctr Invest Quim CIQ UP, Rua Campo Alegre 687, P-4169007 Oporto, Portugal

[2] Univ Porto, Fac Ciencias, Dept Fis & Astron, IFIMUP, Rua Campo Alegre 687, P-4169007 Oporto, Portugal

[3] Univ Porto, Fac Ciencias, Dept Fis & Astron, IN Inst Nanosci & Nanotechnol, Rua Campo Alegre 687, P-4169007 Oporto, Portugal

来源：

THIN SOLID FILMS | 2018年 / 645卷

关键词：

Metal oxides; Titanium dioxide; Electrodeposition; Deep eutectic solvents; Ionic liquids; IONIC LIQUIDS; ROOM-TEMPERATURE; SOLAR-CELLS; TITANIUM; DEPOSITION; KINETICS; FILMS; GOLD;

D O I：

10.1016/j.tsf.2017.11.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An alternative route is proposed for direct electrodeposition of TiO2 films. The electrochemical behaviour of Ti (IV) species in the deep eutectic solvent formed between choline chloride (ChCl) and ethylene glycol (EG) was studied by chronoamperometry and cyclic voltammetry. It was discussed that during the cathodic scan soluble subvalent TiCl chi species were formed using the eutectic system 1ChCl:2EG. Using ethylenediamine or LiF as additives it was possible to obtain a titanium dioxide thin film in the orthorhombic variant named brookite. Chronoamperometric investigations revealed a nucleation mechanism involving the simultaneous presence of 2D instantaneous nucleation process including lattice incorporation and a 3D diffusion-limited nucleation and growth process.

引用

页码：391 / 398

页数：8

共 33 条

[11] Rhodium electrodeposition on pyrolytic graphite electrode:: Analysis of chronoamperometric curves [J].