콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Neuron-like Polyelectrolyte-Carbon Nanotube Composites for Ultra-high Loading of Metal Nanoparticles
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2014-07-16
- 저자명 Md. Shahinul Islam, Won San Choi*, Tae Sung Bae, Young Boo Lee, Ha-Jin Lee
- 학술지명 New J. Chem
- 발행처명 Royal Society of Chemistry
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 5
- 논문 다운로드 링크(외부) https://doi.org/10.1039/C4NJ00638K
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
We report a simple protocol for the fabrication of multiwalled carbon nanotubes (MWCNTs) with a neuron-like structure for loading ultra-high densities of metal nanoparticles (NPs). The MWCNTs were initially coated with an anionic polyelectrolyte (PE), polystyrene sodium sulfonate (PSS), using a noncovalent interaction (CNT/PSS). The neuron-like structures were fabricated through the stepwise assembly of both the positively charged poly(allylamine) hydrochloride (PAH) and negatively charged poly(acrylic acid) (PAA) in a nonstoichiometric ratio on the CNT/PSS as a template. After three coatings with the PEs, the obtained neuron-shaped CNTs were used as a support for loading a high density of multi-metallic NPs. Moreover, a unique characteristic, tunable and side specific growth of the metal NPs, was also observed. Our neuron-like structures with high loadings of multi-metallic NPs were demonstrated to be catalytic materials for the conversion of 4-nitrophenol to 4-aminophenol and as convenient surface-enhanced Raman scattering substrates for biological tags and molecular detection.
