BROWSE

Related Scientist

cncr's photo.

cncr
나노물질및화학반응연구단
more info

ITEM VIEW & DOWNLOAD

Nanohole-Structured and Palladium-Embedded 3D Porous Graphene for Ultrahigh Hydrogen Storage and CO Oxidation Multifunctionalities

Cited 64 time in webofscience Cited 69 time in scopus
1,137 Viewed 172 Downloaded
Title
Nanohole-Structured and Palladium-Embedded 3D Porous Graphene for Ultrahigh Hydrogen Storage and CO Oxidation Multifunctionalities
Author(s)
Kumar, R; Oh, JH; Kim, HJ; Jung, JH; Chan-Ho Jung; Hong, WG; Kim, HJ; Jeong-Young Park; Oh, IK
Subject
nanoholes, ; defect-laden graphene, ; CO oxidation, ; hydrogen storage, ; catalyst
Publication Date
2015-07
Journal
ACS NANO, v.9, no.7, pp.7343 - 7351
Publisher
AMER CHEMICAL SOC
Abstract
Atomic-scale defects on carbon nanostructures have been considered as detrimental factors and critical problems to be eliminated in order to fully utilize their intrinsic material properties such as ultrahigh mechanical stiffness and electrical conductivity. However, defects that can be intentionally controlled through chemical and physical treatments are reasonably expected to bring benefits in various practical engineering applications such as desalination thin membranes, photochemical catalysts, and energy storage materials. Herein, we report a defect-engineered self-assembly procedure to produce a three-dimensionally nanohole-structured and palladium-embedded porous graphene hetero-nanostructure having ultrahigh hydrogen storage and CO oxidation multifunctionalities. Under multistep microwave reactions, agglomerated palladium nanoparticles having diameters of similar to 10 nm produce physical nanoholes in the basal-plane structure of graphene sheets, while much smaller palladium nanoparticles are readily impregnated inside graphene layers and bonded on graphene surfaces. The present results show that the defect-engineered hetero-nanostructure has a similar to 5.4 wt % hydrogen storage capacity under 7.5 MPa and CO oxidation catalytic activity at 190 degrees C The defect-laden graphene can be highly functionalized for multipurpose applications such as molecule absorption, electrochemical energy storage, and catalytic activity, resulting in a pathway to nanoengineering based on underlying atomic scale and physical defects
URI
https://pr.ibs.re.kr/handle/8788114/1981
DOI
10.1021/acsnano.5b02337
ISSN
1936-0851
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
129_ACS Nano.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

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

Browse