Materials Literature
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The alkali activation of metakaolin (MK) leads to the production of high‐mechanical‐performance network‐structure materials. Adding calcium hydroxide (Ca(OH) 2 ) to the raw MK produces a somewhat different reaction: a network structure and C‐S‐H gel form. In the present study, MK and (MK + Ca(OH) 2 ) mixes were activa…
We have examined the use of Cu-Ni alloys as anodes for the direct oxidation of methane in solid-oxide fuel cells (SOFC) at 1073 K. Ceramic-metal (cermet) composites having alloy compositions of 0, 10, 20, 50 and 100% Ni were exposed to dry methane at 1073 K for 1.5 h to demonstrate that carbon formation is greatly sup…
thin film electrodes were prepared for use in a supercapacitor by electrochemical precipitation of films followed by heat-treatment. The effect of electrodeposition conditions such as cathodic current density and concentration of solution on the surface morphology of were examined and found to have a significant effec…
This article mainly deals with the recent serendipity of novel porphyrin analogs such as N-confused porphyrin. The unique property of this ligand allows the formation of a variety of metal complexes. The important aspect of dynamic flipping (inversion), induced either by confusion or expansion of the macrocyclic core,…
This book explains the fundamentals of high temperature corrosion and oxidation. It will enable engineers and other technical personnel to understand: How quickly different metals react with different environments at high temperatures; The mechanisms of these reactions; The corrosivity of different environments; How t…
Using alkyl phosphates and a cyclophosphazene as cosolvents, the possibility of formulating a nonflammable electrolyte for lithium-ion batteries was explored. The emphasis was placed on determining the impact of these flame-retarding additives on the performance of the electrolyte. It was found that although the cosol…
Series Preface. Preface to Volume 2. 1. Introduction. 1.1 Scope and definitions. 1.2 Nomenclature. 1.3 Historical background. 1.4 Introduction to catalysis by polyoxometalates. References. 2. Properties of Polyoxometalates. 2.1 Structures of polyoxometalates. 2.2 Crystal structure of heteropoly compounds. 2.3 Thermal…
Automation and data processing are discussed, followed by a description of a software package ``XIA-DPA'' for automated data processing & analysis.
Photochromic reactivity of diarylethenes in the single-crystalline phase was found to be controlled by the distance between the reactive carbon atoms in the antiparallel conformation.
The density of sputtered Ge2Sb2.04Te4.74 thin films upon annealing has been precisely determined by x-ray reflection and compared to the values determined from x-ray diffraction (XRD) data. The film density increases in two steps around 130 and 280 °C upon annealing up to 400 °C. These increases are consequences of ph…
Shape- and dopant-controlled magnetic semiconductor nanocrystals have been achieved by the thermolysis of nonpyrophoric and less reactive single molecular precursors under a monosurfactant system. Reaction parameters governing both the intrinsic crystalline phase and the growth regime (kinetic vs thermodynamic) are fo…
Experiments were conducted to study the temporal evolution of feldspar crystallization kinetics during isothermal decompression. Pinatubo dacite was held at 780°C, 220 MPa, f O2 = NNO + 2, H 2 O‐saturated conditions for an equilibration period, decompressed to final pressures, P f , ranging from 175 to 5 MPa, and then…
Reversible addition fragmentation chain transfer (RAFT) has been used to synthesize polymer brushes. Styrene, methyl methacrylate, and N, N -dimethylacrylamide brushes were prepared under RAFT conditions using silicate surfaces that were modified with surface-immobilized azo initiators. Films with controlled thickness…
The final stage of the collapse of a laser-produced cavitation bubble close to a rigid boundary is studied both experimentally and theoretically. The temporal evolution of the liquid jet developed during bubble collapse, shock wave emission and the behavior of the “splash” effect are investigated by using high-speed p…
▪ Abstract Microstructure in an immiscible polymer blend consists of the size, shape, and orientation of the phases. Blends exhibit many interesting behaviors, including enhanced elasticity at small strains, drop-size hysteresis, enhanced shear thinning, and stress relaxation curves whose shapes are sensitive to defor…
Abstract Geno3D (http://geno3d-pbil.ibcp.fr) is an automatic web server for protein molecular modelling. Starting with a query protein sequence, the server performs the homology modelling in six successive steps: (i) identify homologous proteins with known 3D structures by using PSI-BLAST; (ii) provide the user all po…
Improvement of catalytic efficiency of immobilized enzymes via materials engineering was demonstrated through the preparation of bioactive nanofibers. Bioactive polystyrene (PS) nanofibers with a typical diameter of 120 nm were prepared and examined for catalytic efficiency for biotransformations. The nanofibers were…
We report the synthesis and characterization of a novel biomaterial that possesses the unique properties of being both electrically conducting and biodegradable; and thus capable of electronic interfacing with tissue. This polymer was synthesized from conducting oligomers of pyrrole and thiophene that are connected to…
Analysis of correlations between various physical properties of solids provides a formulation of simple criteria applicable to the search for new superhard materials. The prospects for the synthesis of new substances with the key elastic moduli, whose values approach or even exceed those of diamond are also discussed.…
High-Capacitance Supercapacitor Using a Nanocomposite Electrode of Single-Walled Carbon Nanotube and Polypyrrole , An, Kay Hyeok, Jeon, Kwan Ku, Heo, Jeong Ku, Lim, Seong Chu, Bae, Dong Jae, Lee, Young Hee