A simple template method for hierarchical dendrites of silver nanorods and their applications in catalysis
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001 (China)
- China National Tobacco Quality Supervision and Test Center, Zhengzhou, Henan 450001 (China)
A novel strategy has been put forward to prepare hierarchical dendrites of silver nanorods via a simple integration method using 'Devarda's template' as a reducing agent and architecture template with the assistance of ultrasonic waves, in which the template was firstly fabricated and employed. The individual silver dendrite is composed of a long central trunk with secondary branches, which preferentially grew in a parallel direction with a definite angle to the trunk. The results reveal that the dendrites are single crystalline in nature and interestingly prove that the silver single crystal has the preferential orientation in <1 1 1> direction in normal conditions. The contrast experiments demonstrated that both 'Devarda's template' and the ultrasonic irradiation are necessary for building hierarchically silver dendrites in a water system. Moreover, the experimental results show that the dendrites of silver nanorods are the superior electrode materials for the electrochemical sensors to detect directly NO{sub 2}{sup -} in aqueous solution.
- OSTI ID:
- 21068211
- Journal Information:
- Materials Research Bulletin, Vol. 43, Issue 3; Other Information: DOI: 10.1016/j.materresbull.2007.06.031; PII: S0025-5408(07)00253-X; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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