Results 11 to 20 of about 21,753 (229)

Flexible All-Carbon Nanoarchitecture Built from In Situ Formation of Nanoporous Graphene Within “Skeletal-Capillary” Carbon Nanotube Networks for Supercapacitors [PDF]

Nanomaterials
It is difficult for carbonaceous materials to combine a large specific surface area with flexibility. Here, a flexible all-carbon nanoarchitecture based on the in situ growth of nanoporous graphene within “skeletal-capillary” carbon nanotube (CNT ...
Tao Chen, Hongyan Li, Jiaziyi Wang, Xilai Jia   +3 more
doaj   +2 more sources

A molecularly engineered large-area nanoporous atomically thin graphene membrane for ion separation [PDF]

Nature Communications
Atomically thin graphene membranes with sub-1-nm pores show promise for ion/molecular separation, osmotic energy generation, and energy storage. Narrowing the pore size distribution and controlling the surface charge are essential to achieve these ...
Ziwen Dai, Pengrui Jin, Shushan Yuan, Jiakuan Yang, Kumar Varoon Agrawal, Huanting Wang   +5 more
doaj   +2 more sources

Edge-activated graphene nanopores for thermally robust hydrogen membrane separations [PDF]

Nature Communications
Temperature-dependent, selective molecular diffusion through porous materials is crucial for membrane separations and is typically modeled as an Arrhenius-type activated process.
Chi Cheng, Lohyun Kim, Aaron H. Persad, Chun Man Chow, Rohit Karnik   +4 more
doaj   +2 more sources

DNA Translocation through Graphene Nanopores [PDF]

Nano Letters, 2010
We report on DNA translocations through nanopores created in graphene membranes. Devices consist of 1-5 nm thick graphene membranes with electron-beam sculpted nanopores from 5 to 10 nm in diameter. Due to the thin nature of the graphene membranes, we observe larger blocked currents than for traditional solid-state nanopores.
Merchant, Christopher A., Healy, Ken, Wanunu, Meni, Ray, Vishva, Peterman, Neil, Bartel, John, Fischbein, Michael D., Venta, Kimberly, Luo, Zhengtang, Johnson, A. T. Charlie, Drndic, Marija   +10 more
openaire   +7 more sources

Molecule-hugging graphene nanopores [PDF]

Proceedings of the National Academy of Sciences, 2013
It has recently been recognized that solid-state nanopores in single-atomic-layer graphene membranes can be used to electronically detect and characterize single long charged polymer molecules. We have now fabricated nanopores in single-layer graphene that are closely matched to the diameter of a double-stranded DNA molecule.
Garaj, Slaven, Liu, Song, Golovchenko, Jene, Branton, Daniel   +3 more
openaire   +3 more sources

Stabilization of graphene nanopore [PDF]

Proceedings of the National Academy of Sciences, 2014
Significance The key driving force for nanopore research has been the prospect of DNA sequencing, which requires small, thin pores for highest resolution. The length of the pore channel can be reduced to a single layer of atoms through the use of graphene. However, it is known that tiny holes in graphene are unstable against filling by carbon
Jaekwang, Lee, Zhiqing, Yang, Wu, Zhou, Stephen J, Pennycook, Sokrates T, Pantelides, Matthew F, Chisholm   +5 more
openaire   +2 more sources

Novel energy bandgap formation of organic solution doped graphene membrane for semiconductor applications

Applied Surface Science Advances, 2023
In this work, the electrolyte nano fibrous solution is prepared using corn husk through a chemical process. This study explores the new aspect of producing sizeable and tunable bandgap in graphene by doping organic nanoporous solution as a membrane.
Mohammad Asaduzzaman Chowdhury, Nayem Hossain, Hasanuzzaman Aoyon, Md. Kawser Ali, Md. Abdul Wadud, Md. Masud Rana, Rajib Nandee   +6 more
doaj   +1 more source

Nanoporous Silicon with Graphene-like Coating for Pseudocapacitor Application

Nanomaterials, 2022
This paper presents the results of studies of the nanoporous silicon structure, both with different pore depths (up to 180 μm) and with layers in which a graphene-like coating was synthesized on the inner surface of the pores.
Daria M. Sedlovets, Anton P. Naumov, Victor I. Korotitsky, Vitaly V. Starkov   +3 more
doaj   +1 more source

Confined assembly of ultrathin nanoporous nitrogen-doped graphene nanofilms with dual metal coordination chemistry

iScience, 2021
Summary: Graphene oxide (GO) nanosheets with unique structure have received much attention in providing opportunity for high-performance membranes in separation.
Zehai Xu, Yufan Zhang, Xu Zhang, Qin Meng, Yujie Zhu, Chong Shen, Yinghua Lu, Guoliang Zhang, Congjie Gao   +8 more
doaj   +1 more source

Ion selectivity of graphene nanopores [PDF]

Nature Communications, 2016
AbstractAs population growth continues to outpace development of water infrastructure in many countries, desalination (the removal of salts from seawater) at high energy efficiency will likely become a vital source of fresh water. Due to its atomic thinness combined with its mechanical strength, porous graphene may be particularly well-suited for ...
Rollings, Ryan C., Kuan, Aaron, Golovchenko, Jene   +2 more
openaire   +4 more sources