The first experimental demonstration of beneficial effects of sub-nanometer platinum particles for photocatalysis

Shen Zhao; Girish Ramakrishnan; Peichuan Shen; Dong Su; Alexander Orlov

doi:10.1016/j.cej.2012.11.110

The first experimental demonstration of beneficial effects of sub-nanometer platinum particles for photocatalysis

Shen Zhao
, Girish Ramakrishnan
, Peichuan Shen
, Dong Su
, Alexander Orlov

Materials Science and Engineering

Stony Brook University
Brookhaven National Laboratory

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Ultra small sub-1nm platinum nanoparticles were synthesized, characterized and deposited on TiO₂ support. The presence of sub-1nm clusters was confirmed by STEM. They exhibited a striking photocatalytic activity for both liquid and gas phase oxidation reactions, which have a significant potential for environmental applications. We believe that this experimental result is the first ever experimental demonstration of very promising properties of such small clusters for environmental photocatalysis. The NO₂ conversion on these catalysts was 5times higher as compared to that of unmodified catalysts, whereas 4times increase in activity was observed for liquid phase oxidation of phenol. Another distinct component of this work included a novel use of modified DRIFT spectroscopy for photocatalytic testing, which allowed us to observe both surface and gas phase processes in situ.

Original language	English
Pages (from-to)	266-272
Number of pages	7
Journal	Chemical Engineering Journal
Volume	217
DOIs	https://doi.org/10.1016/j.cej.2012.11.110
State	Published - Feb 1 2013

Keywords

DRIFTS
Nanoclusters
Photocatalytic
Platinum nanoparticles
TiO

Access to Document

10.1016/j.cej.2012.11.110

Cite this

@article{ad4deb3990934caebfd46a1f8bdd49c6,

title = "The first experimental demonstration of beneficial effects of sub-nanometer platinum particles for photocatalysis",

abstract = "Ultra small sub-1nm platinum nanoparticles were synthesized, characterized and deposited on TiO2 support. The presence of sub-1nm clusters was confirmed by STEM. They exhibited a striking photocatalytic activity for both liquid and gas phase oxidation reactions, which have a significant potential for environmental applications. We believe that this experimental result is the first ever experimental demonstration of very promising properties of such small clusters for environmental photocatalysis. The NO2 conversion on these catalysts was 5times higher as compared to that of unmodified catalysts, whereas 4times increase in activity was observed for liquid phase oxidation of phenol. Another distinct component of this work included a novel use of modified DRIFT spectroscopy for photocatalytic testing, which allowed us to observe both surface and gas phase processes in situ.",

keywords = "DRIFTS, Nanoclusters, Photocatalytic, Platinum nanoparticles, TiO",

author = "Shen Zhao and Girish Ramakrishnan and Peichuan Shen and Dong Su and Alexander Orlov",

year = "2013",

month = feb,

day = "1",

doi = "10.1016/j.cej.2012.11.110",

language = "English",

volume = "217",

pages = "266--272",

journal = "Chemical Engineering Journal",

issn = "1385-8947",

}

TY - JOUR

T1 - The first experimental demonstration of beneficial effects of sub-nanometer platinum particles for photocatalysis

AU - Zhao, Shen

AU - Ramakrishnan, Girish

AU - Shen, Peichuan

AU - Su, Dong

AU - Orlov, Alexander

PY - 2013/2/1

Y1 - 2013/2/1

N2 - Ultra small sub-1nm platinum nanoparticles were synthesized, characterized and deposited on TiO2 support. The presence of sub-1nm clusters was confirmed by STEM. They exhibited a striking photocatalytic activity for both liquid and gas phase oxidation reactions, which have a significant potential for environmental applications. We believe that this experimental result is the first ever experimental demonstration of very promising properties of such small clusters for environmental photocatalysis. The NO2 conversion on these catalysts was 5times higher as compared to that of unmodified catalysts, whereas 4times increase in activity was observed for liquid phase oxidation of phenol. Another distinct component of this work included a novel use of modified DRIFT spectroscopy for photocatalytic testing, which allowed us to observe both surface and gas phase processes in situ.

AB - Ultra small sub-1nm platinum nanoparticles were synthesized, characterized and deposited on TiO2 support. The presence of sub-1nm clusters was confirmed by STEM. They exhibited a striking photocatalytic activity for both liquid and gas phase oxidation reactions, which have a significant potential for environmental applications. We believe that this experimental result is the first ever experimental demonstration of very promising properties of such small clusters for environmental photocatalysis. The NO2 conversion on these catalysts was 5times higher as compared to that of unmodified catalysts, whereas 4times increase in activity was observed for liquid phase oxidation of phenol. Another distinct component of this work included a novel use of modified DRIFT spectroscopy for photocatalytic testing, which allowed us to observe both surface and gas phase processes in situ.

KW - DRIFTS

KW - Nanoclusters

KW - Photocatalytic

KW - Platinum nanoparticles

KW - TiO

UR - https://www.scopus.com/pages/publications/84871730916

U2 - 10.1016/j.cej.2012.11.110

DO - 10.1016/j.cej.2012.11.110

M3 - Article

AN - SCOPUS:84871730916

SN - 1385-8947

VL - 217

SP - 266

EP - 272

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

ER -

The first experimental demonstration of beneficial effects of sub-nanometer platinum particles for photocatalysis

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this