Cited 0 time in webofscience Cited 0 time in scopus

Transition Metal-Based Thiometallates as Surface Ligands for Functionalization of All-Inorganic Nanocrystals

Title
Transition Metal-Based Thiometallates as Surface Ligands for Functionalization of All-Inorganic Nanocrystals
Authors
Jeong, Hye WonYoon, Sin MyungKim, Jung HwaKwak, Do HyunGu, Da HwiHeo, Seung HwaeKim, Hyun HongPark, Sang MinBan, Hyeong WooPark, Jong NamLee, Zong HoonLee, Jong SooAn, Kwang JinSon, Jae Sung
DGIST Authors
Lee, Jong Soo
Issue Date
2017-12
Citation
Chemistry of Materials, 29(24), 10510-10517
Type
Article
Article Type
Article
Keywords
CO OXIDATIONCOLLOIDAL NANOCRYSTALSSINGLE-ATOMCATALYTIC-ACTIVITYSULFIDE LIGANDSNANOPARTICLESMONODISPERSEREDUCTIONSIZESEMICONDUCTORS
ISSN
0897-4756
Abstract
We report a new family of inorganic ligands, namely, transition metal-based thiometallates, for the surface functionalization of colloidal nanocrystals (NCs). We synthesized Pt-, Fe-, Co-, and Ni-based thiometallates, in which transition metal ions were complexed with polysulfides. These inorganic anions easily exchanged the surface organic ligands of various nanocrystals of metal, semiconductor, and oxide materials, without affecting the NCs' primary structural and optical characteristics. Furthermore, upon heating, these complexes were decomposed and transformed into crystalline phases of metal sulfides or pure metals, accompanied by the evaporation of S. Based on this effect, we selectively synthesized homogeneously distributed atomic Pt clusters or Pt nanoparticles on Fe3O4 nanomaterials by heating thioplatinate-capped Fe3O4 NCs. As a model application, we tested the prepared Pt-functionalized Fe3O4 nanomaterial as a heterogeneous catalyst for CO oxidation reaction and Pt-Fe3O4 catalysts exhibited the high turnover frequency due to the homogeneous distribution of atomic Pt over Fe3O4 and the corresponding strong metal-support interaction. This approach opens up a new avenue to functionalize nanocrystals for catalytic applications. © 2017 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/5614
DOI
10.1021/acs.chemmater.7b04387
Publisher
AMER CHEMICAL SOC
Related Researcher
  • Author Lee, Jong Soo Multifuntional Nanomaterials & Energy Devices Lab(MNEDL)
  • Research Interests
Files:
There are no files associated with this item.
Collection:
ETC1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE