Microdischarge-Induced Decomposition of Ammonia and Reduction of Silver Ions for Formation of Two-Dimensional Network Structure |
| |
| Authors: | Osamu Sakai Yu Hiraoka Naoya Kihara Ella Blanquet Keiichiro Urabe Masanobu Tanaka |
| |
| Institution: | 1.Department of Electronic Systems Engineering,The University of Shiga Prefecture,Hikone,Japan;2.Department of Electronic Science and Engineering,Kyoto University,Kyoto,Japan;3.Department of Advanced Materials Science, School of Frontier Sciences,University of Tokyo,Kashiwa,Japan;4.Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering,Tokyo Institute of Technology,Midori-Ku, Yokohama,Japan |
| |
| Abstract: | Microdischarge-induced reaction processes working at atmospheric pressure create fractal-like network structure of metal nano-particles which shows variable electric and optical properties. Due to their smallness, microdischarges or microplasmas can be installed in a gas-tubing system, and they enable us to create a compact chemical reduction reactor which includes decomposers of molecules, gas flows, and aqueous solutions with metallic ions at atmospheric pressure. Ammonia (NH3) gas is successfully decomposed in this reactor, and its products which include mainly hydrazine (N2H4) and flow in the downstream induce reduction reactions for AgNO3 solution. Various parameters in the reactor trigger formation of functional patterns of silver nano-particles like partially transparent layers whose conductivity is variable. Optical properties of this equivalent films show some absorption spectra coming from structure resonances, which can be an optical metamaterials in this self-assembly process. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
