نتایج جستجو برای: nanocarbons

تعداد نتایج: 199  

2012
F. Khoerunnisa A. Morelos - Gómez S. M. Vega - Díaz V. J. González R. Cruz - Silva

A novel physico-chemical route to produce few layer graphene nanoribbons with atomically smooth edges is reported, via acid treatment (H2SO4:HNO3) followed by characteristic thermal shock processes involving extremely cold substances. Samples were studied by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy and X-ray photoele...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2010
Milton W Cole Vincent H Crespi Mildred S Dresselhaus Gene Dresselhaus John E Fischer Humberto R Gutierrez K Kojima Gerald D Mahan Apparao M Rao Jorge O Sofo M Tachibana K Wako Qihua Xiong

This review addresses the field of nanoscience as viewed through the lens of the scientific career of Peter Eklund, thus with a special focus on nanocarbons and nanowires. Peter brought to his research an intense focus, imagination, tenacity, breadth and ingenuity rarely seen in modern science. His goal was to capture the essential physics of natural phenomena. This attitude also guides our wri...

2015
Katsuhiko Ariga Martin Pumera Masakazu Aono

World Premier International Center for Materials Nanoarchitectonics (WPIMANA), National Institute for Materials Science (NIMS), Japan 2 School of Physical and Mathematical Science, Division of Chemistry and Biological Chemistry, Nanyang Technological University, Singapore E-mail: ARIGA. [email protected], [email protected] and AONO. [email protected] Great progress requires great ideas. Ov...

Journal: :Trends in chemistry 2022

In this forum article, we discuss selected recent contributions to the field of nonplanar aromatic molecules, focusing on properties that arise from molecular curvature. Ten reports are highlighted demonstrate diverse applications curved aromatics in materials science would not be achieved by their planar congeners. Graphene is a carbon allotrope comprising single, flat layer hexagonally arrang...

2011
Zhen Liu Jialai Wang Vinod Kushvaha Selcuk Poyraz Hareesh Tippur Seongyong Park Moon Kim Yang Liu Johannes Bar Hang Chen Xinyu Zhang

Carbon nanotubes (CNTs) have drawn a great deal of attention since Iijima discovered this new class of allotropes of carbon. Due to their extraordinary mechanical, thermal and electrical properties, CNTs have huge potential in the applications of composite materials, smart structures, chemical sensors, energy storage and nano-electronic devices. However, the challenges remain in the high cost o...

2012
Kirt A. Page Dustin England John Texter

Small-angle neutron scattering and turbidity were used to probe nanoscale structure in bicontinuous microemulsions before and after polymerization. Difficulties in capturing nanoscale structure by polymerizing microemulsions have persisted with the use of thermal initiation. Bicontinuous microemulsion polymerization with a reactive surfactant monomer and cross-linker was done with only a 20% in...

Journal: :Chem 2021

Light is the original source of most energy on Earth, allowing us to see and live. It also central many technological processes. Therefore, innovative nanomaterials that can absorb, generate, or further exploit light are utmost importance, having potential become pervasive in our lives. This case for carbon nanocolloids, which ubiquitous, biocompatible, inexpensive, three important prerequisite...

2009
Jessica Campos-Delgado Jose Manuel Romo-Herrera Xiaoting Jia David A. Cullen Hiroyuki Muramatsu Yoong Ahm Kim Takuya Hayashi Zhifeng Ren David J. Smith Yu Okuno Tomonori Ohba Hirofumi Kanoh Katsumi Kaneko Morinobu Endo Humberto Terrones Mildred S. Dresselhaus Mauricio Terrones José Manuel Romo-Herrera

We report the use of chemical vapor deposition (CVD) for the bulk production (grams per day) of long, thin, and highly crystalline graphene ribbons (<20-30 μm in length) exhibiting widths of 20-300 nm and small thicknesses (2-40 layers). These layers usually exhibit perfect ABAB... stacking as in graphite crystals. The structure of the ribbons has been carefully characterized by several techniq...

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