Results 11 to 20 of about 107,974 (298)

Investigations on the Nonlinear Optical Properties of 0D, 1D, and 2D Boron Nitride Nanomaterials in the Visible Spectral Region

open access: yesNanomaterials, 2023
In recent years, boron nitride nanomaterials have attracted increasing attention due to their unique properties such as high temperature stability and high thermal conductivity.
Stefanie Dengler, Bernd Eberle
doaj   +1 more source

Growth of spherical carbon nitride with crystalline alpha and beta phases

open access: yesCarbon Trends, 2021
Carbon is a versatile element, and its allotropes play a center role in both science and technology. Further, doping of nitrogen into carbon network has been of great interest as it leads to superior properties such as chemical, mechanical and electronic
Venkatesh Ramasamy   +3 more
doaj   +1 more source

Boron nitride quantum dots modified carbon-defects ultra-thin porous carbon nitride: double channels and quantum size effects facilitate photogenerated carrier migration and exciton dissociation

open access: yesMaterials Research Express, 2023
Graphite carbon nitride possesses great promise for visible photocatalysis, but the bulk carbon nitride prepared from nitrogen-rich precursors such as melamine has inherent drawbacks such as retarded photogenerated carrier migration and exciton effects ...
Chugeng Huang, Dandan Wu, Guojian Jiang
doaj   +1 more source

Preparation, Characterization of Graphitic Carbon Nitride Photo-Catalytic Nanocomposites and Their Application in Wastewater Remediation: A Review

open access: yesCrystals, 2021
Energy crisis and environmental pollution are the major problems of human survival and development. Photocatalytic technology can effectively use solar energy and is prospective to solve the above-mentioned problems.
Caifang Li   +4 more
doaj   +1 more source

Synthesis of multilayer azagraphene and carbon nitride oxide

open access: yesХімія, фізика та технологія поверхні, 2018
As an one of the most promising materials of green energy as a photocatalyst for the production of hydrogen from renewable, natural sources (water, greenhouse gas) and environmental remediation through the degradation of toxic organic pollutants ...
M. E. Bondarenko   +5 more
doaj   +1 more source

Optomechanical and Crystallization Phenomena Visualized with 4D Electron Microscopy: Interfacial Carbon Nanotubes on Silicon Nitride [PDF]

open access: yes, 2010
With ultrafast electron microscopy (UEM), we report observation of the nanoscopic crystallization of amorphous silicon nitride, and the ultrashort optomechanical motion of the crystalline silicon nitride at the interface of an adhering carbon nanotube ...
Flannigan, David J., Zewail, Ahmed H.
core   +2 more sources

Structure elucidation of polyheptazine imide by electron diffraction — a templated 2D carbon nitride networkw [PDF]

open access: yes, 2009
Structure elucidation of a condensed carbon IV) nitride with a stoichiometry close to C3N4 by electron diffraction reveals a two-dimensional planar heptazine-based network containing isolated melamine molecules in the trigonal ...
Döblinger, Markus   +5 more
core   +1 more source

Breaking through water-splitting bottlenecks over carbon nitride with fluorination

open access: yesNature Communications, 2022
Graphitic carbon nitride has long been considered a poor oxygen evolution catalyst. Here, the authors report a simple fluorination strategy to prevent the accumulation of inert C=O on carbon nitride to break through this bottleneck.
Ji Wu   +8 more
doaj   +1 more source

Structure and wear mechanisms of nano-structured TiAlCN/VCN multilayer coatings [PDF]

open access: yes, 2007
Dry sliding wear of transition metal nitride coatings usually results in a dense and strongly adhered tribofilm on the worn surface. This paper presents detailed electron microscopy and Raman spectroscopy characterizations of the microstructure, a newly ...
Ajayi   +16 more
core   +1 more source

Graphite Carbon Nitride

open access: yes, 2023
Graphitic carbon nitride (g-C3N4), is a synthetic polymer made up of carbon, nitrogen, and some impurity hydrogen that is linked together using tris-triazine-based patterns. Because of the inclusion of N and H atoms, it has electron-rich characteristics, basic surface functions, and H-bonding motifs, compared to the bulk of carbon materials ...
Yamuna, Ezhumalai,   +2 more
openaire   +2 more sources

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