Title :
Preparation and characterization of supported Pt nanoparticles for N2O-H2 reaction
Author :
Kim, Moon Hyeon ; Yang, Won-Ho
Author_Institution :
Daegu Univ., Gyeongsan
Abstract :
Highly dispersed Pt nanoparticles were prepared by exchanging H+ sites in surface OH groups present on porous SiO2 for [Pt(NH3)4]2+ ions in a solution and were characterized using various characterization techniques. The metallic Pt particles with three different coordination environments had very small sizes near 1 nm and were uniformly distributed on the support. These nanodispersed Pt particles gave high intrinsic activity in N2O-H2 reaction at very low temperatures, such as 363 K.
Keywords :
catalysis; chemisorption; disperse systems; ion exchange; nanoparticles; platinum; Pt-SiO2 - Interface; highly dispersed nanoparticles; intrinsic activity; metallic nanoparticles; nanodispersed particles; Hydrogen; Inductors; Metals industry; Moon; Nanoparticles; Occupational health; Particle measurements; Scanning probe microscopy; Size measurement; Temperature; HRTEM; N2O-H2 reaction; Pt nanoparticles; chemisorption; ion exchange;
Conference_Titel :
Nanotechnology Materials and Devices Conference, 2006. NMDC 2006. IEEE
Conference_Location :
Gyeongju
Print_ISBN :
978-1-4244-0541-1
Electronic_ISBN :
978-1-4244-0541-1
DOI :
10.1109/NMDC.2006.4388810
