Calcium carbonate hierarchical structures formed by a combined electrophoretic/electro chemical deposition

被引：7

作者：

Amor, G. ^{[1
]}

Vazquez, A. ^{[2
]}

Obregon, S. ^{[3
]}

Kharisov, B. ^{[1
]}

机构：

[1] Univ Autonoma Nuevo Leon, Fac Ciencias Quim, Av Univ S-N, San Nicolas De Los Garza 66455, Nuevo Leon, Mexico

[2] Univ Autonoma Nuevo Leon, Fac Ciencias Quim, Ctr Invest Biotecnol & Nanotecnol, Parque Invest & Innovac Tecnol, Apodaca 66629, Nuevo Leon, Mexico

[3] Univ Autonoma Nuevo Leon, CICFIM Fac Ciencias Fis Matemat, Av Univ S-N, San Nicolas De Los Garza 66455, Nuevo Leon, Mexico

来源：

MATERIALS LETTERS | 2021年 / 295卷

关键词：

Hierarchical structures; Electrophoretic deposition; Electrochemical; CaCO3; HYDROXYAPATITE; TRANSFORMATION; ISOPROPANOL; POLYMORPHS;

D O I：

10.1016/j.matlet.2021.129856

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, a combined electrophoretic/electrochemical deposition is reported for the formation of CaCO3 hierarchical structures. In a first step, CaCO3 microparticles with bar shape were synthesized under a microwave-assisted methodology. According to the characterization techniques, aragonite is the main polymorph in the sample, with a small amount of calcite. The as-obtained particles were dispersed in iso-propyl alcohol (IPA) with calcium nitrate as charging agent for colloidal stabilization. Then, a voltage of 30 V was applied for 30 min between two aluminum plates at 5 mm of distance. Under these conditions, IPA is electrochemically decomposed in CO2 which then reacts with calcium ions forming new CaCO3 particles over the microparticles previously synthesized. The result is a hierarchical structure which could be promising for bone-tissue engineering and catalysis. (C) 2021 Elsevier B.V. All rights reserved.

引用

页数：4

共 21 条

[1] Electrophoretic deposition of electroless nickel coated YSZ core-shell nanoparticles on a nickel based superalloy [J].