نتایج جستجو برای: pt decorated graphene

تعداد نتایج: 101985  

2017
Ankita Hazarika Biplab K. Deka DoYoung Kim Kyungil Kong Young-Bin Park Hyung Wook Park

We synthesized Ag nanoparticle-decorated multilayered graphene nanosheets (Ag-graphene) from graphite nanoplatelets and silver nitrate through 90-100 s of microwave exposure, without the use of any mineral acids or harsh reducing agents. Fe nanoparticle-decorated carbon nanotubes (Fe-CNTs) were grown on polypyrrole (PPy) deposited on woven Kevlar fibre (WKF), using ferrocene as a catalyst, unde...

2016
J. Chapman Y. Su C. A. Howard D. Kundys A. N. Grigorenko F. Guinea A. K. Geim I. V. Grigorieva R. R. Nair

Despite graphene's long list of exceptional electronic properties and many theoretical predictions regarding the possibility of superconductivity in graphene, its direct and unambiguous experimental observation has not been achieved. We searched for superconductivity in weakly interacting, metal decorated graphene crystals assembled into so-called graphene laminates, consisting of well separate...

2014
Lisandro Cunci Carlos A. Velez Ivan Perez Amal Suleiman Eduardo Larios Miguel José-Yacamán James J. Watkins Carlos R. Cabrera

The electrochemical reduction of highly oxidized unsupported graphene oxide nanosheets and its platinum electrodeposition was done by the rotating disk slurry electrode technique. Avoiding the use of a solid electrode, graphene oxide was electrochemically reduced in a slurry solution with a scalable process without the use of a reducing agent. Graphene oxide nanosheets were synthesized from car...

2015
Byungjin Cho Jongwon Yoon Sung Kwan Lim Ah Ra Kim Sun-Young Choi Dong-Ho Kim Kyu-Hwan Lee Byoung Hun Lee Heung Cho Ko Myung Gwan Hahm

We have investigated the effects of metal decoration on the gas-sensing properties of a device with two-dimensional (2D) molybdenum disulfide (MoS₂) flake channels and graphene electrodes. The 2D hybrid-structure device sensitively detected NO₂ gas molecules (>1.2 ppm) as well as NH₃ (>10 ppm). Metal nanoparticles (NPs) could tune the electronic properties of the 2D graphene/MoS₂ device, increa...

Journal: :Nanoscale 2014
P Tongying F Vietmeyer D Aleksiuk G J Ferraudi G Krylova M Kuno

Charge separation and charge transfer across interfaces are key aspects in the design of efficient photocatalysts for solar energy conversion. In this study, we investigate the hydrogen generating capabilities and underlying photophysics of nanostructured photocatalysts based on CdSe nanowires (NWs). Systems studied include CdSe, CdSe/CdS core/shell nanowires and their Pt nanoparticle-decorated...

2014
Lin-Bao Luo Long-Hui Zeng Chao Xie Yong-Qiang Yu Feng-Xia Liang Chun-Yan Wu Li Wang Ji-Gang Hu

Heterojunctions near infrared (NIR) photodetectors have attracted increasing research interests for their wide-ranging applications in many areas such as military surveillance, target detection, and light vision. A high-performance NIR light photodetector was fabricated by coating the methyl-group terminated Si nanowire array with plasmonic gold nanoparticles (AuNPs) decorated graphene film. Th...

2016
Menghao Wu Cheng Zeng Xiao Cheng Zeng

The physical and chemical properties of decorated graphene and graphene ribbons, single-layer III-V systems, three-dimensional carbon and BN foam, and transition-metal-molecular sandwich nanowires have been investigated by first-principle calculations and their potential applications have been predicted. First, it is shown that zigzag graphene nanoribbons (ZGNRs) can be converted into half meta...

2009
Srivats Rajasekaran

The main goal of this work was to study the hydrogen interactions with carbon nanostructures (graphene grown on Pt(111), and carbon nanotube (CNT)/Pt composites) in lieu towards finding answers related to two bigger questions – (a) hydrogen storage possibility in carbon nanostructures and (b) band gap opening in graphene (for device applications). X-ray spectroscopy was used as the main experim...

Journal: :Physical chemistry chemical physics : PCCP 2014
Siegfried Eigler

Both sides of a graphene oxide (ai-GO) layer are decorated with functional groups. For the first time it is demonstrated that an effective reduction of ai-GO to graphene can be performed, even if the reducing agent can access only one side of ai-GO. A general reduction mechanism is proposed.

2016
Menghao Wu J. D. Burton Evgeny Y. Tsymbal Xiao Cheng Zeng Puru Jena

decorated graphene systems as candidates for organic metal-free ferroelectrics, multiferroics, and high-performance proton battery cathode materials" (2013). Evgeny Tsymbal Publications. Paper 67.

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