Pd doped reduced graphene oxide for hydrogen storage

2015 ◽  
Author(s):  
Tapas Das ◽  
Seemita Banerjee ◽  
V. Sudarsan
Keyword(s):  
Graphene Oxide ◽  
Hydrogen Storage ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene

Hydrogen storage in a chemical bond stabilized Co9S8–graphene layered structure

Nanoscale ◽  
2015 ◽  
Vol 7 (47) ◽  
pp. 20180-20187 ◽  
Author(s):  
Wei Qin ◽  
Lu Han ◽  
Hai Bi ◽  
Jiahuang Jian ◽  
Xiaohong Wu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrogen Storage ◽  
Reduced Graphene Oxide ◽  
Layered Structure ◽  
Storage Capacity ◽  
High Energy ◽  
Hydrogen Storage Capacity ◽  
Reduced Graphene ◽  
Milling Method ◽  
Energy Ball

With the high energy ball milling method, a Co9S8-decorated reduced graphene oxide (RGO) composite, which shows excellent hydrogen storage capacity, has been successfully fabricated with a well-organized layered structure.

Reduced Graphene Oxide for Room Temperature Hydrogen Storage Application

2015 ◽  
Vol 1086 ◽  
pp. 91-95 ◽  
Author(s):  
A. Venkatesan ◽  
Raj Nanalal Patel ◽  
E.S. Kannan
Keyword(s):  
Graphene Oxide ◽  
Electric Field ◽  
Hydrogen Storage ◽  
Reduced Graphene Oxide ◽  
Room Temperature ◽  
Structural Defects ◽  
Back Gate ◽  
Hot Air ◽  
Reduced Graphene ◽  
P Type

Graphene oxide (GO) is extracted from graphite oxide synthesized using modified Hummers method. The extracted GO solution is then drop casted onto a p type silicon substrate and dried in hot air oven. The dried solution is annealed at a temperature of about 200 degree Celsius for about one hour to obtain thermally reduced graphene oxide (RGO). Such thermally synthesized RGO usually have a lot of structural defects which can act as a binding site for hydrogen. The binding efficiency of hydrogen to defect centers can be increased by applying electric field to RGO as it changes the carrier concentration (doping) on the surface. This induces more polarization in the hydrogen molecule resulting in strong binding force, thereby increasing its hydrogen storage efficiency. In our experiment we have demonstrated room temperature electric field doping in RGO films by modulating the channel current by changing the back gate voltage which is a precursor for employing RGO in hydrogen storage applications.KeywordsGraphene oxide, Reduced graphene oxide, Field effect, Hydrogen storage, and Defects

Facile synthesis and characterization of a reduced graphene oxide/halloysite nanotubes/hexagonal boron nitride (RGO/HNT/h-BN) hybrid nanocomposite and its potential application in hydrogen storage

RSC Advances ◽  
2016 ◽  
Vol 6 (82) ◽  
pp. 79072-79084 ◽  
Author(s):  
R. Naresh Muthu ◽  
S. Rajashabala ◽  
R. Kannan
Keyword(s):  
Graphene Oxide ◽  
Boron Nitride ◽  
Hydrogen Storage ◽  
Reduced Graphene Oxide ◽  
Hexagonal Boron Nitride ◽  
Halloysite Nanotubes ◽  
Hybrid Nanocomposites ◽  
Reduced Graphene ◽  
Hydrogen Storage Performance

The hydrogen storage performance of hybrid nanocomposites composed of reduced graphene oxide, acid treated halloysite nanotubes and hexagonal boron nitride nanoparticles (RGO/A-HNT/h-BN) was studied.

FePt/reduced graphene oxide composites for high capacity hydrogen storage

2017 ◽  
Vol 25 (5) ◽  
pp. 295-300 ◽  
Author(s):  
Mohammadreza Pirzadi Jahromi ◽  
Seyyed Ershad Moradi ◽  
Atefe Nasrollahpour ◽  
Seyyed Mohammad Javad Moradi
Keyword(s):  
Graphene Oxide ◽  
Hydrogen Storage ◽  
Reduced Graphene Oxide ◽  
High Capacity ◽  
Reduced Graphene ◽  
Oxide Composites

scholarly journals Catalytic Hydrolysis of Ammonia Borane by Cobalt Nickel Nanoparticles Supported on Reduced Graphene Oxide for Hydrogen Generation

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Yuwen Yang ◽  
Fei Zhang ◽  
Hualan Wang ◽  
Qilu Yao ◽  
Xiangshu Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Hydrogen Storage ◽  
Reduced Graphene Oxide ◽  
Ammonia Borane ◽  
Reducing Agent ◽  
Hydrogen Storage Material ◽  
Storage Material ◽  
Reduced Graphene ◽  
Total Turnover

Well dispersed magnetically recyclable bimetallic CoNi nanoparticles (NPs) supported on the reduced graphene oxide (RGO) were synthesized by one-step in situ coreduction of aqueous solution of cobalt(II) chloride, nickel (II) chloride, and graphite oxide (GO) with ammonia borane (AB) as the reducing agent under ambient condition. The CoNi/RGO NPs exhibits excellent catalytic activity with a total turnover frequency (TOF) value of 19.54 mol H2 mol catalyst−1 min−1and a low activation energy value of 39.89 kJ mol−1at room temperature. Additionally, the RGO supported CoNi NPs exhibit much higher catalytic activity than the monometallic and RGO-free CoNi counterparts. Moreover, the as-prepared catalysts exert satisfying durable stability and magnetically recyclability for the hydrolytic dehydrogenation of AB, which make the practical reusing application of the catalysts more convenient. The usage of the low-cost, easy-getting catalyst to realize the production of hydrogen under mild condition gives more confidence for the application of ammonia borane as a hydrogen storage material. Hence, this general method indicates that AB can be used as both a potential hydrogen storage material and an efficient reducing agent, and can be easily extended to facile preparation of other RGO-based metallic systems.

scholarly journals A Mechanistic Analysis of Phase Evolution and Hydrogen Storage Behavior in Nanocrystalline Mg(BH4)2 within Reduced Graphene Oxide

ACS Nano ◽  
2020 ◽  
Vol 14 (2) ◽  
pp. 1745-1756 ◽  
Author(s):  
Sohee Jeong ◽  
Tae Wook Heo ◽  
Julia Oktawiec ◽  
Rongpei Shi ◽  
ShinYoung Kang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrogen Storage ◽  
Reduced Graphene Oxide ◽  
Phase Evolution ◽  
Mechanistic Analysis ◽  
Reduced Graphene ◽  
Storage Behavior
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