Structure and Hydrogen Adsorption Properties of SBA-15 Doped with Pd Nanoparticles
- Authors
- Lee, Sang-Hwa; Park, Taehee; Yi, Whikun; Kim, Jaeyong
- Issue Date
- Nov-2015
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Mesoporous Materials; SBA-15; Hydrogen Adsorption; Isotherm
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.15, no.11, pp.8922 - 8925
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 15
- Number
- 11
- Start Page
- 8922
- End Page
- 8925
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/142886
- DOI
- 10.1166/jnn.2015.11526
- ISSN
- 1533-4880
- Abstract
- Hydrogen adsorption properties of Pd-doped Santa Barbara amorphous No. 15 (Pd-SBA-15) were investigated and the results were compared with pure SBA-15 ones in terms of change of its structure and Pd concentration. Pd-SBA-15 samples were prepared by a hydrothermal reaction, using mixture of PEO20PPO70PEO20 (P123) and tetraethyl orthosilicate (TEOS). For the doping of Pd on SBA-15, PdCl2 solution was added into the mixture of P123 and TEOS, and the solution was annealed at 80 degrees C for 2 hours under 800 Torr of hydrogen atmosphere. According to the X-ray diffraction and transmission electron microscope data, Pd-doped SBA-15 samples form a hexagonal array of mesoporous structure with 20 similar to 30 nm size of Pd particles. Values of specific surface area decreased from 630 to 414 m(2)/g as increasing the Pd doping level due to the increasing of the volume density. In fact, the volume density increased from 0.103 to 0.276 g/cc as increasing the mass ratio of PdCl2 to TEOS from 0 to 0.5. For the Pd-doped SBA-15, the amount of adsorbed hydrogen significantly increased from 0.49 to 0.99 wt% as increasing the Pd doping level from 0 to 0.5 demonstrating that Pd doping is an effect method for SBA-15 as a potential use of hydrogen storage application.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 자연과학대학 > 서울 물리학과 > 1. Journal Articles
- 서울 자연과학대학 > 서울 화학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/142886)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.