CN

张帅

Associate professor

Supervisor of Master's Candidates

Education Level:博士研究生

Degree:博士

Discipline:Material Physics and Chemistry
Material Science

Paper Publications

Growth and shape control of orthorhombic Fe-5(PO4)(4)(OH)(3)center dot 2H(2)O single crystalline dendrites

Release time:2021-03-15 Hits:

Key Words:Crystal morphology; Dendrites; Nanostructures; Hydrothermal crystal growth; Nanomaterials; Phosphates

Abstract:Orthorhombic Fe-5(PO4)(4)(OH)(3)center dot 2H(2)O single crystalline dendritic nanostructures have been synthesized by a facile and reproducible hydrothermal method without the aid of any surfactants. The influences of synthetic parameters, such as reaction time, temperature, the amount of H2O2 solution, pH values, and types of iron precursors, on the crystal structures and morphologies of the resulting products have been investigated. The formation process of Fe-5(PO4)(4)(OH)(3)center dot 2H(2)O dendritic nanostructures is time dependent: amorphous FePO4 center dot nH(2)O nanoparticles are formed firstly, and then Fe-5(PO4)(4)(OH)(3)center dot 2H(2)O dendrites are assembled via a crystallization-orientation attachment process, accompanying a color change from yellow to green. The shapes and sizes of Fe-5(PO4)(4)(OH)(3)center dot 2H(2)O products can be controlled by adjusting the amount of H2O2 solution, pH values, and types of iron precursors in the reaction system. (C) 2010 Elsevier B.V. All rights reserved.

Volume:312

Issue:20

Translation or Not:no

Click:times | The Founding Time:.. | The Last Update Time:..

Laoshan Campus-99 Songling Road, Qingdao City, Shandong Province
Sifang Campus-No.53 Zhengzhou Road, Qingdao City, Shandong Province
Sino-German International Cooperation Zone (Sino-German Campus)-No. 3698 Tuanjie Road, West Coast New District, Qingdao City, Shandong Province
Gaomi Campus-No. 1 Xingtan West Street, Gaomi City, Shandong Province
Jinan Campus-No. 80 Wenhua East Road, Jinan City, Shandong Province ©2015 Qingdao University of Science and Technology
Administrator email: master@qust.e