ChemPhysChem
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Control of Drug Release through the In Situ Assembly of Stimuli‐Responsive Ordered Mesoporous Silica with Magnetic Particles
ChemPhysChem - Tập 8 Số 17 - Trang 2478-2483 - 2007
AbstractA site‐selective controlled delivery system for controlled drug release
is fabricated through the in situ assembly of stimuli‐responsive ordered SBA‐15
and magnetic particles. This approach is based on the formation of ordered
mesoporous silica with magnetic particles formed from Fe(CO)5 via the
surfactant‐template sol‐gel method and control of transport through
polymerization of N‐isoprop...
Photolysis and Heterogeneous Reaction of Coniferyl Aldehyde Adsorbed on Silica Particles with Ozone
ChemPhysChem - Tập 11 Số 18 - Trang 4019-4027 - 2010
AbstractThe pseudo‐first‐order loss of coniferyl aldehyde, adsorbed on silicon
dioxide particles, upon heterogeneous ozonolysis was monitored at various ozone
mixing ratios in the absence and presence of simulated sunlight. For the first
time we investigated the effect of light on the heterogeneous ozonolysis of
coniferyl aldehyde adsorbed on silica particles. We found that UV–VIS light
(λ>300 nm)...
Facile Template‐Free Synthesis of Bi2O2CO3 Hierarchical Microflowers and Their Associated Photocatalytic Activity
ChemPhysChem - Tập 11 Số 10 - Trang 2167-2173 - 2010
AbstractHierarchical Bi2O2CO3 flowerlike microstructures have been synthesized
for the first time using a facile, template‐free, and low‐temperature solution
method. With an average diameter of about 3 μm, the as‐prepared Bi2O2CO3
microflowers are composed of numerous two‐dimensional nanosheets with oriented
terminal engagement. On the basis of electron microscopy observations, a
plausible growth ...
Crystal Structure and Carbon Vacancy Hardening of (W0.5Al0.5)C1−x Prepared by a Solid‐State Reaction
ChemPhysChem - Tập 6 Số 10 - Trang 2099-2103 - 2005
AbstractNovel solid solutions of aluminum in tungsten carbide (WC) with or
without carbon vacancies, which can be expressed by the chemical formula
(W0.5Al0.5)C1−x (x=0.0–0.5), have been synthesized by the solid‐state reaction
of W0.5Al0.5 alloy and the proper amount of carbon at around 1673 K in vacuum.
The reaction time decreases from 73 to 50 h on increasing the carbon vacancy
concentration fro...
Chemical Bonding of Transition‐Metal Co13 Clusters with Graphene
ChemPhysChem - Tập 16 Số 17 - Trang 3700-3710 - 2015
AbstractWe carried out density functional calculations to study the adsorption
of Co13 clusters on graphene. Several free isomers were deposited at different
positions with respect to the hexagonal lattice nodes, allowing us to study even
the hcp 2d isomer, which was recently obtained as the most stable one.
Surprisingly, the Co13 clusters attached to graphene prefer icosahedron‐like
structures in...
Spectroelectrochemical Studies on Quinacridone by Using Poly(vinyl alcohol) Coating as Protection Layer
ChemPhysChem - Tập 16 Số 10 - Trang 2206-2210 - 2015
AbstractSpectroscopic measurements in the infrared range combined with
electrochemistry are a powerful technique for investigation of organic
semiconductors to track changes during oxidation and reduction (p‐ and n‐doping)
processes. For these measurements it is important that the studied material,
mostly deposited as a thin film on an internal reflection element, does not
dissolve during this cha...
Non‐Haloaluminate Room‐Temperature Ionic Liquids in Electrochemistry—A Review
ChemPhysChem - Tập 5 Số 8 - Trang 1106-1120 - 2004
AbstractSome twenty‐five years after they first came to prominence as
alternative electrochemical solvents, room temperature ionic liquids (RTILs) are
currently being employed across an increasingly wide range of chemical fields.
This review examines the current state of ionic liquid‐based electrochemistry,
with particular focus on the work of the last decade. Being composed entirely of
ions and p...
Recent Developments in Dye‐Sensitized Solar Cells
ChemPhysChem - Tập 15 Số 18 - Trang 3902-3927 - 2014
AbstractThe knowledge of dye‐sensitized solar cells (DSCs) has expanded
considerably in recent years. They are multiparameter and complex systems that
work only if various parameters are tuned simultaneously. This makes it
difficult to target to a single parameter to improve the efficiency. There is a
wealth of knowledge concerning different DSC structures and characteristics. In
this review, the ...
Photophysical and Electrochemical Properties, and Molecular Structures of Organic Dyes for Dye‐Sensitized Solar Cells
ChemPhysChem - Tập 13 Số 18 - Trang 4032-4080 - 2012
AbstractDye‐sensitized solar cells (DSSCs) based on organic dyes adsorbed on
oxide semiconductor electrodes, such as TiO2, ZnO, or NiO, which have emerged as
a new generation of sustainable photovoltaic devices, have attracted much
attention from chemists, physicists, and engineers because of enormous
scientific interest in not only their construction and operational principles,
but also in their ...
Probing the Reorganization of Ionic Liquids’ Structure Induced by CO2 Sorption
ChemPhysChem - Tập 21 Số 12 - Trang 1230-1234 - 2020
AbstractThe sorption of CO2 is often used to modify the macroscopic properties
of liquids and solids. In the particular case of ionic liquids, different from
molecular liquids, the sorption of CO2 may not induce volume expansions due to
the strong Coulombic interactions between the ions of the fluid. However, a
considerable viscosity decrease has been systematically observed. In order to
understan...
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