Original Article
  • Catalytic Reduction Efficiency Comparison between Porous Au, Pt, and Pd Nanoplates
  • Woojun Shin, Young-Jin Kim, Hongje Jang, Ji Hun Park, Young-Kwan Kim
  • Institute of Advanced Composite Material, Korea Institute of Science and Technology, Wanju 55324, Korea, Institute of Advanced Composite Materials, Korea Institute of Science and Technology, Wanju 55324, Korea, Corresponding author, Department of Chemistry, Kwangwoon University, 20 Gwangwoon-ro, Nowon-gu, Seoul 01897, Republic of Korea, Department of Science Education, Ewha Womans University, Seoul, Korea, Corresponding author
  • 요철형 금, 백금, 팔라듐 나노플레이트의 촉매성 환원 효율 비교
  • 신우준, 김영진, 장홍제, 박지훈, 김영관
Abstract
The size, morphology and composition of nanoparticles are regarded as the most important factors to the efficiency of catalytic reduction of various chemical compounds. In order to make a systematic comparison, gold, platinum and palladium nanoplates with 100 nm diameter with rough surface morphology were manufactured through the galvanic replacement reaction, and the reaction kinetics of the catalytic reduction of 4-nitrophenol and 4- nitroaniline was systematically analyzed by spectroscopic measurement. According to the observation, the catalytic reduction efficiency was significantly different against the constitutional elements in order of Pd > Au > Pt, and it was additionally influenced by the type of substrate.

나노입자에 기반한 화학 촉매 반응 효율성에는 크기, 형태 및 조성이 중요한 영향을 미치는 것으로 알려져 있다. 이에 대한 체계적인 비교를 위해 갈바닉 치환 반응을 통해 100 nm 직경의 요철형 표면 구조를 갖는 금, 백금, 팔라듐 나노플레이트에 대한 정량적인 분석 조건 형성이 가능하였으며, 4-나이트로페놀과 4-나이트로아닐린을 대상으로한 촉매 반응 진행을 분광분석법을 통해 확인할 수 있었다. 이로부터 동일 형태 및 형태에서 구성 원소에 따라 확연히 다른 Pd > Au > Pt의 촉매성 환원 반응 효율을 보임을 관찰할 수 있었으며, 기질의 형태에 따라 추가적인 영향을 받음을 관찰 가능하였다.

Keywords: Catalytic reduction, Galvanic replacement, Nanoparticles, Constituent elements

Keywords: 촉매성 환원, 갈바닉 치환, 나노입자, 구성 원소

This Article

  • 2019; 32(2): 85-89

    Published on Apr 30, 2019