نتایج جستجو برای: graphene znosio2 hybrid

تعداد نتایج: 239165  

2015
Shasha Lv Zhengcao Li Jiecui Liao Guojing Wang Mingyang Li Wei Miao

Graphene is one of the ideal nanomaterials to be paired with silicon, and their complementary properties can be exploited in field emission (FE) devices. We reported an efficient way to produce and adjust the dimension of uniform protrusions within graphene. First, a multistep template replication process was utilized to fabricate highly periodic and well-aligned silicon nanowires (SiNWs) of di...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2010
Chengzhou Zhu Shaojun Guo Yueming Zhai Shaojun Dong

In this report, we succeed in constructing a hybrid three-dimensional (3D) nanocomposite film by alternatively assembling the graphene nanosheets modified by ionic liquid (IL) and Pt nanoparticles (Pt NPs). In this strategy, an imidazolium salt-based ionic liquid (IS-IL)-functionalized graphene was synthesized by covalently binding 1-(3-aminopropyl)-3-methylimidazolium bromide onto graphene nan...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مراغه - دانشکده علوم پایه 1393

در این کار، ما کاتالیست pt-sn/graphene را برای اکسیداسیون اتانول در محیط اسیدی، گزارش کرده ایم. گرافن، با استفاده از محلول مایع یونی و لایه برداری الکتروشیمیایی الکترودهای گرافیت سنتز شد. سپس کاتالیست های pt-sn بر پایه گرافن به وسیله اتیلن گلیکول، که به عنوان عامل تثبیت کننده استفاده می شود، احیا شدند تا نانو ذرات ptsn با پخش شدگی بالا بر روی صفحات گرافن تهیه شوند و در اکسیداسیون اتانول در پیل ...

2014
Chun-Wei Chen

Graphene, which consists of a single atom-thick plane of carbon atoms arranged in a honeycomb lattice, exhibits unique both " bulk " and " surface " properties of materials due to its tunable electronic structure. In this talk, I would like to present the tunable platform of graphene-based materials including graphene and graphene oxide in optical, electronic and photonic applications by manipu...

2012
Mahdi Moradinasab Hamed Nematian Mahdi Pourfath Morteza Fathipour Hans Kosina

Related Articles Effect of in-situ oxygen on the electronic properties of graphene grown by carbon molecular beam epitaxy grown Appl. Phys. Lett. 100, 133107 (2012) Oxygen density dependent band gap of reduced graphene oxide J. Appl. Phys. 111, 054317 (2012) Electronic structures of graphane with vacancies and graphene adsorbed with fluorine atoms AIP Advances 2, 012173 (2012) Transport propert...

Journal: :Nanoscale 2016
Longsheng Zhang Wei Fan Tianxi Liu

It is still very challenging to achieve effective combination of carbon nanofibers and graphene sheets. In this study, a novel and facile method is developed to prepare flexible graphene/carbon nanofiber (GCNF) membranes with every carbon nanofiber wrapped by conductive graphene sheets, resulting in a remarkable improvement of their electrical conductivity. This method only entails a moderate p...

2012
Wenyu Zhang Yi Zeng Chen Xu Ni Xiao Yiben Gao Lain-Jong Li Xiaodong Chen Huey Hoon Hng Qingyu Yan

We report a facile method to prepare a nanoarchitectured lithium manganate/graphene (LMO/G) hybrid as a positive electrode for Li-ion batteries. The Mn(2)O(3)/graphene hybrid is synthesized by exfoliation of graphene sheets and deposition of Mn(2)O(3) in a one-step electrochemical process, which is followed by lithiation in a molten salt reaction. There are several advantages of using the LMO/G...

Journal: :Nano letters 2014
Pradyumna Goli Hao Ning Xuesong Li Ching Yu Lu Konstantin S Novoselov Alexander A Balandin

We demonstrated experimentally that graphene-Cu-graphene heterogeneous films reveal strongly enhanced thermal conductivity as compared to the reference Cu and annealed Cu films. Chemical vapor deposition of a single atomic plane of graphene on both sides of 9 μm thick Cu films increases their thermal conductivity by up to 24% near room temperature. Interestingly, the observed improvement of the...

Journal: :Nanoscale 2013
Tianru Wu Guqiao Ding Honglie Shen Haomin Wang Lei Sun Yun Zhu Da Jiang Xiaoming Xie

In this paper, we systematically studied the effects of coronene as nucleation seeds for graphene synthesis at low temperatures by chemical vapor deposition. Naphthalene was used as a solid carbon source which is capable of producing graphene at temperatures down to 300 °C. The experimental results showed clear evidence that coronene seeds work as preferred nucleation sites, through which the n...

2016
Praveen Kumar

During the past few decades, materials design has shifted emphasis to pursue low cost, quality, light weight, environment friendliness, and performance. Aluminium matrix composites are important class of engineering materials used in aerospace, automotive, engineering, defence and other industries because of their lower density, higher specific strength, and better physical and mechanical prope...

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