RuO2 nanoparticles by a novel green process via Aspalathus linearis natural extract & their water splitting response

被引：50
|
作者：
Ismail, E. [1 ,2 ]
Diallo, A. [1 ,2 ]
Khenfouch, M. [1 ,2 ]
Dhlamini, S. M. [1 ,2 ]
Maaza, M. [1 ,2 ]
机构：
[1] Univ S Africa, Coll Grad Studies, UNESCO UNISA Africa Chair Nanosci Nanotechnol, ZA-0001 Pretoria, South Africa
[2] iThemba LABS Natl Res Fdn, Nanosci African Network NANOAFNET, Somerset West, Western Cape Pr, South Africa
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 662卷
基金：
新加坡国家研究基金会;
关键词：
Biosynthesis; Green synthesis; Ruthenium (IV) oxide; Aspalathus linearis; RAMAN-SCATTERING CHARACTERIZATION; RAY PHOTOELECTRON-SPECTROSCOPY; VISIBLE-LIGHT IRRADIATION; WELL-ALIGNED RUO2; RUTHENIUM DIOXIDE; STRUCTURAL-PROPERTIES; COPPER-OXIDE; ELECTRODE; FILMS; CU2O;
D O I：
10.1016/j.jallcom.2015.11.234
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This contribution reports on the biosynthesis of quasi-monodisperse rutile Ruthenium (IV) oxide nanoparticles with an average diameter of 2.15 nm using Aspalathus linearis natural extract as a chelating agent as well as a capping compound. Their morphological, structural and optical properties were investigated using various complementary surface/interface characterization techniques. This includes transmission electron microscopy, selective area electron diffraction. Their optical band gap was found to be about 2.1 eV. Loaded onto a p-type Cu2O thin film, the nano-scaled RuO2-Cu2O tandem exhibits an effective water photo-splitting response in the solar spectrum. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：283 / 289
页数：7
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