Graphene decorated with metal nanoparticles: Hydrogen sorption and related artefacts

被引：22

作者：

Klechikov, Alexey ^{[1
]}

Sun, Jinhua ^{[1
]}

Hu, Guangzhi ^{[1
]}

Zheng, Mingbo ^{[2
]}

Wagberg, Thomas ^{[1
]}

Talyzin, Alexandr V. ^{[1
]}

机构：

[1] Umea Univ, Dept Phys, S-90187 Umea, Sweden

[2] Yangzhou Univ, Coll Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2017年 / 250卷

关键词：

Graphene; Hydrogen storage; Graphene oxide; Nanoparticles; Decoration; HIGH-SURFACE-AREA; COVALENT ORGANIC FRAMEWORKS; ADSORPTION PROPERTIES; STORAGE CAPACITY; CARBON; TEMPERATURE; NANOTUBES;

D O I：

10.1016/j.micromeso.2017.05.014

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Hydrogen sorption by reduced graphene oxides (r-GO) is not found to increase after decoration with Pd and Pt nanoparticles. Treatments of metal decorated samples using annealing under hydrogen or air were tested as a method to create additional pores by effects of r-GO etching around nanoparticles. Increase of Specific Surface Area (SSA) was observed for some air annealed r-GO samples. However, the same treatments applied to activated r-GO samples with microporous nature and higher surface area result in breakup of structure and dramatic decrease of SSA. Our experiments have not revealed effects which could be attributed to spillover in hydrogen sorption on Pd or Pt decorated graphene. However, we report irreversible chemisorption of hydrogen for some samples which can be mistakenly assigned to spillover if the experiments are incomplete. (C) 2017 Elsevier Inc. All rights reserved.

引用

页码：27 / 34

页数：8

共 61 条

[31] Synthesis methods for preparing microporous carbons with a structural regularity of zeolite Y [J].