Platinum and platinum-iron alloy nanoparticles dispersed nitrogen-doped graphene as high performance room temperature hydrogen sensor

被引：29
|
作者：
Sripada, Raghu [1 ,3 ]
Parambath, Vinayan Bhagavathi [2 ]
Baro, Mridula [1 ]
Nair, Santhosh P. Nagappan [3 ]
Sundara, Ramaprabhu [1 ]
机构：
[1] IITM, AENL, NFMTC, Dept Phys, Madras 600036, Tamil Nadu, India
[2] Helmholtz Inst Ulm Electrochem Storage HIU, D-89081 Ulm, Germany
[3] IITM, Low Temp Phys Lab, Dept Phys, Madras 600036, Tamil Nadu, India
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2015年 / 40卷 / 32期
关键词：
Nitrogen doped graphene; Hydrogen sensor; Platinum decorated nitrogen doped graphene; Platinum iron alloy nanoparticle; ELECTRONIC-STRUCTURE; CARBON; OXYGEN; OXIDE; H-2; ELECTROCATALYSTS; DISSOCIATION; CATALYST; DESIGN;
D O I：
10.1016/j.ijhydene.2015.06.018
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In the present work, room temperature hydrogen sensing properties of platinum (Pt) and platinum iron (Pt3Fe) alloy nanoparticle (NP) decorated nitrogen doped graphene were investigated. In order to incorporate the nitrogen functional groups within the graphene matrix, first graphene was coated with the nitrogen anionic polyelectrolyte followed by the pyrolysis in inert atmosphere. Further Pt and Pt3Fe nanoparticles were decorated on nitrogen-doped graphene (NG) by modified polyol reduction technique. The systemic investigation of hydrogen sensing properties of Pt/NG and Pt3Fe/NG NPs at 4 vol% of hydrogen reveals the excellent sensitivity of these composites. The present study shows that Pt3Fe/NG NPs composite can be believed as a high performance room temperature sensing material. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：10346 / 10353
页数：8
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