콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Metal Ion-Enriched Polyelectrolyte Complexes and Their Utilization in Multilayer Assembly and Catalytic Nanocomposite Films
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2012-05
- 저자명 Md. Arifur Rahim, Md. Shahinul Islam, Tae Sung Bae, Won San Choi*, Yong-Young Noh, and Ha-Jin Lee
- 학술지명 Langmuir
- 발행처명 ACS Publications
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 6
- 논문 다운로드 링크(외부) https://doi.org/10.1021/la300674t
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
The mixing of Ag ion-doped poly(ethyleneimine) (PEI) and poly(acrylic acid) (PAA) produced Ag ion-doped polyelectrolyte complex particles (PECs) in solution. Positively charged Ag ion-doped PECs (Ag ion PECs) with a spherical shape were deposited alternatively with PAA to form a multilayer assembly. The multilayered film containing Ag ion PECs was reduced to generate a composite nanostructure. Metal nanoparticle (NP)-enriched nanocomposite films were formed by an additional process of the postadsorption of precursors on PECs within the nanocomposite films, which resulted in the enhancement of the catalytic and electrical properties of the composite films. Because the films contain PECs that are responsive to changes in pH and most of the NPs are embedded in the PECs, interesting catalytic properties, which are unexpected in a particle-type catalyst, were observed upon pH changes. As a result of the reversible structural changes of the films and the immobilization of the NPs within the films, the film-type catalysts showed enhanced performance and stability during catalytic reactions under various pH conditions, compared to particle-type catalysts.
