Enhanced lithium ion battery performance of nano/micro-size Si via combination of metal-assisted chemical etching method and ball-milling

10.1016/j.micromeso.2018.03.035

2018-04-09

Up to now, designing special Si with high coulombic efficiency and cycling stability in a bulk electrode remains a significant challenge. In this work, nano/micro-structured Si was successfully synthesized via a simple and scalable process with combination of...

Adsorption of pure and predicted binary (CO2:CH4) mixtures on 13X-Zeolite: Equilibrium and kinetic properties at offshore conditions

10.1016/j.micromeso.2018.04.007

2018-04-04

The growth in energy demand for natural gas has led to the exploration of sub-quality natural gas reserves with high CO2 content up to 80% at the offshore condition with temperature and pressure approximately 50 °C and 70 bar. In this work, a gravimetric tech...

Microstructure reconstruction and impedance spectroscopy study of LiCoO2, LiMn2O4 and LiFePO4 Li-ion battery cathodes

10.1016/j.micromeso.2018.04.001

2018-04-04

Cathode materials have been the focal point of research in the quest for high-performance secondary battery technology in consumer electronics and electric vehicles. The present work investigates the effect of the microstructural morphology of major cathode m...

Ammonium tagged Hoveyda-Grubbs catalysts immobilized on magnetically separable core-shell silica supports for ring-closing metathesis reactions

10.1016/j.micromeso.2018.04.002

2018-04-04

Ammonium tagged Hoveyda-Grubbs (Ru-1) catalyst was immobilized on core-shell structured silica gel bearing a magnetic nano-sized α-Fe2O3 core via non-covalent interactions. Core-shell silica gel materials were synthesized using a two-step coating procedure of...

Characteristics of acetylene cracking on MCM-41 to form carbon materials and their exhaust emission

10.1016/j.micromeso.2018.04.006

2018-04-04

Chemical vapor deposition (CVD) was applied to the synthesis of carbon nanotubes with acetylene as the carbon source at 600–800 °C in a nitrogen atmosphere. The mesoporous material MCM-41 was selected as the template, and Ni and Fe were selected as the cataly...

Preparation and catalytic performance of Ti-MWW zeolite membrane for phenol hydroxylation

10.1016/j.micromeso.2018.04.011

2018-04-04

A novel and dense tubular Ti-MWW zeolite membrane for the phenol hydroxylation was successfully prepared on mullite support by secondary hydrothermal synthesis. The ultraviolet–visible spectroscopy and fourier transform infrared spectrometer confirmed that th...

One-step synthesis of in-situ N-doped ordered mesoporous titania for enhanced gas sensing performance

10.1016/j.micromeso.2018.04.008

2018-04-03

In-situ N-doped ordered mesoporous titania was synthesized by a simple solvent evaporation induced aggregating assembly (EIAA) method using lab-made amphiphilic diblock copolymer polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) as a structure directing agent a...

Using factorial experimental design to optimize biocatalytic biodiesel production from Mucor Miehei Lipase immobilized onto ordered mesoporous materials

10.1016/j.micromeso.2018.04.004

2018-04-03

A supported biocatalyst was prepared by immobilization of Mucor miehei lipase onto mesoporous silica materials. This material was used for the synthesis of biodiesel through the transesterification of rapeseed oil with methanol. The process of biodiesel produ...

Zeolitic imidazole Framework-8 (ZIF-8) fibers by gas-phase conversion of electroblown zinc oxide and aluminum doped zinc oxide fibers

10.1016/j.micromeso.2018.04.003

2018-04-03

Electroblowing was used to prepare ZnO and aluminum doped zinc oxide (AZO, 1–3 cation-% of Al) fibers. The as-blown fibers were calcined at 500 °C to obtain the target material. The average fiber diameters ranged from 240 ± 60 nm for ZnO fibers to 330 ± 80 nm...

Zeolite/dye hybrid composites: Organization of photoactive azobenzene molecules inside AlPO4-5

10.1016/j.micromeso.2018.03.038

2018-04-03

Organic/inorganic hybrid materials - like zeolites + dyes - are currently used in strategic areas, from sustainable energy technologies to biomedical sciences. In these systems, photoactive molecules are organized in one-dimensional nanostructures inside the ...