Top Papers in Environmental Technology, First Runner-Up: Single-walled nanotubes in a tight spot
نویسندگان
چکیده
منابع مشابه
Single - Walled 4 . Single - Walled Carbon Nanotubes
Single-walled carbon nanotubes (SWCNTs) are hollow, long cylinders with extremely large aspect ratios, made of one atomic sheet of carbon atoms in a honeycomb lattice. They possess extraordinary thermal, mechanical, and electrical properties and are considered as one of the most promising nanomaterials for applications and basic research. This chapter describes the structural, electronic, vibra...
متن کاملEnvironmental effects on photoluminescence of single-walled carbon nanotubes
Spectroscopy is a powerful technique to characterize single-walled carbon nanotubes (SWNTs). In particular, photoluminescence (PL) and the excitation spectroscopies have made a great advance in understanding the energy states and transition processes of excitons in SWNTs. The PL spectroscopy also has a potential to assign the chiral index (n,m) of a SWNT and to evaluate the abundance of (n,m) i...
متن کاملCharacterization of Single-walled Carbon Nanotubes for Environmental Implications
Adsorption capacities of N2 and various organic vapors on select electricarc and HiPco produced SWNTs were experimentally measured at 77 K and 298 K, respectively. The results indicated that the amount of N2 adsorbed on a SWNT sample depended on the sample purity, methodology and on the sample age. Adsorption capacities of organic vapors (100 10000 ppmv) on SWNTs in humid conditions were much h...
متن کاملWiring-up hydrogenase with single-walled carbon nanotubes.
Many envision a future where hydrogen is the centerpiece of a sustainable, carbon-free energy supply. For example, the energy in sunlight may be stored by splitting water into H2 and O2 using inorganic semiconductors and photoelectrochemical approaches or with artificial photosynthetic systems that seek to mimic the light absorption, energy transfer, electron transfer, and redox catalysis that ...
متن کاملFirst-principles calculations for nitrogen-containing single-walled carbon nanotubes
We present calculations for possible configurations of nitrogen-containing single-walled carbon nanotubes and their electronic properties obtained with the ab initio tight-binding FIREBALL method. It is found that nitrogen atoms can be energetically incorporated into the carbon network in three forms: Substitution, substitution with formation of a vacancy structure, and chemical adsorption. The...
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ژورنال
عنوان ژورنال: Environmental Science & Technology
سال: 2009
ISSN: 0013-936X,1520-5851
DOI: 10.1021/es900421h