Investigations of hydrogen storage in palladium decorated graphene nanoplatelets

被引：9

作者：

Vinayan, B. P. ^{[1
]}

Sethupathi, K. ^{[1
]}

Ramaprabhu, S. ^{[1
]}

机构：

[1] Indian Inst Technol, AENL, NFMTC, Low Temp Phys Lab,Dept Phys, Chennai 600036, Tamil Nadu, India

来源：

TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2011年 / 64卷 / 1-2期

关键词：

hydrogen storage; graphene nanoplatelets; palladium nanoparticles; sieverts apparatus; high pressure isotherm; CARBON NANOTUBES; ACTIVATED CARBONS; GRAPHITE OXIDE; ADSORPTION; REDUCTION; CAPACITY; SPECTROSCOPY; SPILLOVER; CATALYSTS; SILICA;

D O I：

10.1007/s12666-011-0033-5

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Carbon based nanomaterials are ideal media for hydrogen storage due to their highly porous structure, low density, and large surface area. The hydrogen uptake capacity of different carbon nanomaterials can be enhanced by spill over mechanism from a supported transition metal catalyst. In the present work graphene nanoplatelets (GNP) were prepared by thermal exfoliation method and decorated with palladium nanoparticles (Pd/GNP) by ethylene glycol reduction method. The high pressure hydrogen adsorption/desorption measurements were carried out for GNP and Pd/GNP using Sieverts apparatus in the temperature and pressure ranges of 25-100 degrees C and 0.1-4 MPa, respectively. The hydrogen storage capacity of GNP and Pd/GNP were found to be 0.28 wt% and 1.21 wt% respectively at 25 degrees C and 3.2 MPa pressure. Uniform dispersion of palladium nanoparticles over the surface of GNP enhances the hydrogen storage capacity of GNP by 70% due to spill over mechanism.

引用

页码：169 / 173

页数：5

共 42 条

[1] High-Performance Pd-Based Hydrogen Spillover Catalysts for Hydrogen Storage [J].

Adams, Brian D. ;

Ostrom, Cassandra K. ;

Chen, Shuai ;

Chen, Aicheng .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (46) :19875-19882

[2] Hydrogen desorption and adsorption measurements on graphite nanofibers [J].

Ahn, CC ;

Ye, Y ;

Ratnakumar, BV ;

Witham, C ;

Bowman, RC ;

Fultz, B .

APPLIED PHYSICS LETTERS, 1998, 73 (23) :3378-3380

[3]

[Anonymous], 1975, Introduction to infrared and Raman spectroscopy

[4] Metal decorated graphene nanosheets as immobilization matrix for amperometric glucose biosensor [J].

Baby, Tessy Theres ;

Aravind, S. S. Jyothirmayee ;

Arockiadoss, T. ;

Rakhi, R. B. ;

Ramaprabhu, S. .

SENSORS AND ACTUATORS B-CHEMICAL, 2010, 145 (01) :71-77

[5] Storage of hydrogen by physisorption on carbon and nanostructured materials [J].

Benard, Pierre ;

Chahine, Richard .

SCRIPTA MATERIALIA, 2007, 56 (10) :803-808

[6] Graphite oxide:: Chemical reduction to graphite and surface modification with primary aliphatic amines and amino acids [J].

Bourlinos, AB ;

Gournis, D ;

Petridis, D ;

Szabó, T ;

Szeri, A ;

Dékány, I .

LANGMUIR, 2003, 19 (15) :6050-6055

[7] Hydrogen storage in graphite nanofibers [J].

Chambers, A ;

Park, C ;

Baker, RTK ;

Rodriguez, NM .

JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (22) :4253-4256

[8] ELECTROLYTIC HYDROGEN EVOLUTION KINETICS AND ITS RELATION TO THE ELECTRONIC AND ADSORPTIVE PROPERTIES OF THE METAL [J].

CONWAY, BE ;

BOCKRIS, JO .

JOURNAL OF CHEMICAL PHYSICS, 1957, 26 (03) :532-541

[9] Relation of energies and coverages of underpotential and overpotential deposited H at Pt and other metals to the 'volcano curve' for cathodic H2 evolution kinetics [J].

Conway, BE ;

Jerkiewicz, G .

ELECTROCHIMICA ACTA, 2000, 45 (25-26) :4075-4083

[10] Hydrogen storage in activated carbons and activated carbon fibers [J].

de la Casa-Lillo, MA ;

Lamari-Darkrim, F ;

Cazorla-Amorós, D ;

Linares-Solano, A .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (42) :10930-10934

← 1 2 3 4 5 →