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Now showing items 581-590 of 989
A template-catalyzed: In situ polymerization and co-assembly strategy for rich nitrogen-doped mesoporous carbon
(
Royal Society of Chemistry
, 2018 , Article)
N-doped mesoporous carbon materials are greatly useful in adsorption, catalysis and energy storage. Controlled synthesis of such materials with both high nitrogen content and desired pore structures remains a great challenge. ...
Cu-Ce-O catalyst revisited for exceptional activity at low temperature CO oxidation reaction
(
Elsevier B.V.
, 2018 , Article)
In the present study, CexCu1−xO2−δ (x = 0, 0.3, 0.5, 0.8, 0.9, and 1) catalysts were synthesized using a facile and reproducible combustion method and were evaluated towards the CO oxidation (CO-OX) and CO preferential ...
Application of fractional factorial design for green synthesis of cyano-modified silica nanoparticles: Chemometrics and multifarious response optimization
(
Elsevier B.V.
, 2018 , Article)
Cyano-functionalized spherical silica nanoparticles (SNPs) were synthesized via St?ber method. A 2 k-p IV fractional factorial design (2k-p IV-FFD) was used to smartly prepare monodispersed evenly distributed SNPs. Six ...
Selective gas sensors using graphene and CuO nanorods
(
Elsevier B.V.
, 2018 , Article)
This work reports on the fabrication of sensitive and selective gas sensors fabricated using graphene and/or copper oxide (CuO) nanorods. Herein, three batches of sensors were produced based on graphene/SiO2/Si, CuO nanorods, ...
Tuning the activity of Cu-containing rare earth oxide catalysts for CO oxidation reaction: Cooling while heating paradigm in microwave-assisted synthesis
(
Elsevier Ltd
, 2018 , Article)
(Ce-La-xCu)O2 catalysts with low (3 at.%) and high (10 at.%) Cu content were prepared by conventional microwave (MW) and enhanced microwave methods where air cooling (AC), while heating, was applied. The catalysts were ...
Analysis of factors affecting willingness to pay for high-occupancy-toll lanes: Results from stated-preference survey of travelers
(
Elsevier Ltd
, 2018 , Article)
This study examines the feasibility of implementing high-occupancy toll (HOT) lanes in a Middle Eastern country to obtain an improved understanding of such a policy and how it may affect the behavior of travelers in this ...
High strength, ductility, and electrical conductivity of in-situ consolidated nanocrystalline Cu-1%Nb
(
Elsevier Ltd
, 2018 , Article)
Nanocrystalline metals—with grain sizes less than 100 nm— have strengths exceeding those of coarse-grained and even alloyed metals [1], [2]. A bulk nanocrystalline Cu-1%Nb alloy was synthesized by an in-situ consolidation ...
Plackett-Burman and Box-Behnken designs as chemometric tools for micro-determination of L-Ornithine
(
Elsevier B.V.
, 2018 , Article)
Plackett-Burman (PB) and Box-Behnken (BB) screening and response surface factorial designs were used to evaluate spectrophotometric and spectrofluorimetric approaches for the determination of l-Ornithine (ORN) as per se ...
Ordered porous metal oxide semiconductors for gas sensing
(
Elsevier B.V.
, 2018 , Article)
Among various gas sensing materials, metal oxide semiconductors have shown great potential as resistive type sensors. The ordered porous structural metal oxide semiconductors with well-defined meso- or macro-pores chemically ...
Roll-over cyclometalation: A versatile tool to enhance the catalytic activity of transition metal complexes
(
Elsevier B.V.
, 2018 , Article)
Roll-over cyclometalation is a special case of cyclometalation. While in classical cyclometalation, C,H-activation (deprotonation or oxidative addition) has to occur at the ligand to result in a metallacycle, in roll-over ...