Promoting nitrogen photofixation over a periodic WS2@TiO2 nanoporous film

2020 ◽  
Vol 8 (3) ◽  
pp. 1059-1065 ◽  
Author(s):  
Li Shi ◽  
Zhao Li ◽  
Licheng Ju ◽  
Alejandro Carrasco-Pena ◽  
Nina Orlovskaya ◽  
...  
Keyword(s):  
Nanoporous Film ◽  
Nanoporous Films

WS2@TiO2 nanoporous films were fabricated by implanting WS2 nanosheets in TiO2 nanoporous films and show efficient photocatalytic N2 fixation.

scholarly journals Fabrication of highly-specific SERS substrates by co-precipitation of functional nanomaterials during the self-sedimentation of silver nanowires into a nanoporous film

2015 ◽  
Vol 51 (7) ◽  
pp. 1309-1312 ◽  
Author(s):  
Rui Liu ◽  
Jie-fang Sun ◽  
Dong Cao ◽  
Li-qiang Zhang ◽  
Jing-fu Liu ◽  
...  
Keyword(s):  
Silver Nanowires ◽  
Functional Materials ◽  
The Self ◽  
Sers Substrate ◽  
Functional Nanomaterials ◽  
Nanoporous Film ◽  
Sers Substrates ◽  
Nanoporous Films ◽  
Co Precipitation

In this report, we propose and demonstrate the fabrication of a highly-specific SERS substrate by co-precipitating of functional materials, such as nanosorbents and nanocatalysts, into Ag nanoporous films.

Fabrication of Novel Nanoporous Films in Moisture-in-Oil Sensors via Chemical Dealloying of Cu-Cr using Combinatorial Search of Cu–Cr Alloy Compositions

MRS Advances ◽  
2018 ◽  
Vol 3 (4) ◽  
pp. 225-232 ◽  
Author(s):  
Yusuke Yoshii ◽  
Junpei Sakurai ◽  
Mizue Mizoshiri ◽  
Seiichi Hata
Keyword(s):  
Pore Size ◽  
The Novel ◽  
Combinatorial Search ◽  
Initial Composition ◽  
Compositional Gradient ◽  
Nanoporous Film ◽  
Cr Content ◽  
Nanoporous Films ◽  
Deposited Film

ABSTRACTAn as-deposited film with a Cr compositional gradient (22–15 at.% Cr) was immersed in 22.5% HNO3 for 15 hours. In the part of the film with initial Cr content in the range of 22–18 at.%, Cu dealloying resulted in sufficient Cu dealloying (final Cr content = 33–80 at.%) without film dissolution. Using the film with optimal initial composition Cu82Cr18, we successfully fabricated a nanoporous film with a pore size in the range of 20–40 nm. As a result of the formation of Cr2O3 during dealloying, this film was transparent and exhibited an insulation state. The novel nanoporous film is expected to be applied as a nanofilter in moisture-in-oil sensors.

scholarly journals Nanoporous Films with Photoswitchable Absorption Kinetics Based on Polymerizable Columnar Discotic Liquid Crystals

2021 ◽  
Vol 13 (3) ◽  
pp. 4385-4392
Author(s):  
Jody A. M. Lugger ◽  
Patricia P. Marín San Román ◽  
Camiel C. E. Kroonen ◽  
Rint P. Sijbesma
Keyword(s):  
Liquid Crystals ◽  
Discotic Liquid Crystals ◽  
Absorption Kinetics ◽  
Nanoporous Films

Characterization of the porous nature of a phthalocyanine derivative with axial ligation designed to prevent aggregation

2010 ◽  
Vol 14 (05) ◽  
pp. 389-396
Author(s):  
Carl A. Barker ◽  
Alan Massey ◽  
Aidan Rhodes ◽  
Martin R. Bryce ◽  
Ritu Kataky
Keyword(s):  
Force Microscopy ◽  
Selective Transport ◽  
Electrode Surfaces ◽  
Axial Ligation ◽  
Nanoporous Films ◽  
Atom Force Microscopy ◽  
Solvent Cast ◽  
Complementary Techniques

Judiciously designed phthalocyanines (Pcs), such as silicon-Pc bis(3,5-diphenyl)benzoate (1c), with axial substituents which prevent aggregation, can self-assemble to form ordered nanoporous films on electrode surfaces. In this paper, complementary techniques such as Scanning Kelvin Nanoprobe (SKN) microscopy, Atom Force Microscopy (AFM) and electrochemical measurements are used to demonstrate that films formed by silicon-Pc bis(3,5-diphenyl)benzoate allow size- and charge- selective transport of probe molecules through well-defined intermolecular cavities. In contrast, the analogs silicon-Pc bis(4-tert-butylbenzoate) (1a) and silicon-Pc bis(3-thienyl)acetate (1b) have different film morphologies when solvent-cast in the same manner and block the electrode surface. The role of the different axial substituents in orienting the molecules on the substrate is discussed.

Fabrication of multilayer Nb2O5 nanoporous film by anodization of niobium foils

Rare Metals ◽  
2013 ◽  
Vol 34 (2) ◽  
pp. 77-80 ◽  
Author(s):  
Guang-Zhong Li ◽  
Hui-Ping Tang ◽  
Wen-Yan Zhang ◽  
Gang Li ◽  
Lan-Lan Yu ◽  
...  
Keyword(s):  
Nanoporous Film

scholarly journals Selective porous gates made from colloidal silica nanoparticles

2015 ◽  
Vol 6 ◽  
pp. 2105-2112 ◽  
Author(s):  
Roberto Nisticò ◽  
Paola Avetta ◽  
Paola Calza ◽  
Debora Fabbri ◽  
Giuliana Magnacca ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Spin Coating ◽  
Colloidal Silica ◽  
Sol Gel ◽  
Chemical Species ◽  
Solvent System ◽  
Porous Films ◽  
Nanoporous Films ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Highly selective porous films were prepared by spin-coating deposition of colloidal silica nanoparticles on an appropriate macroporous substrate. Silica nanoparticles very homogenous in size were obtained by sol–gel reaction of a metal oxide silica precursor, tetraethyl orthosilicate (TEOS), and using polystyrene-block-poly(ethylene oxide) (PS-b-PEO) copolymers as soft-templating agents. Nanoparticles synthesis was carried out in a mixed solvent system. After spin-coating onto a macroporous silicon nitride support, silica nanoparticles were calcined under controlled conditions. An organized nanoporous layer was obtained characterized by a depth filter-like structure with internal porosity due to interparticle voids. Permeability and size-selectivity were studied by monitoring the diffusion of probe molecules under standard conditions and under the application of an external stimulus (i.e., electric field). Promising results were obtained, suggesting possible applications of these nanoporous films as selective gates for controlled transport of chemical species in solution.

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