A novel microfibrous composite bed reactor was developed and was demonstrated for high efficiency hydrogen production by the decomposition of ammonia at moderate temperatures in portable fuel cell power system applications. By using a high-speed and low-cost papermaking technology combined with a subsequent sintering process, sinter-locked three-dimensional microfibrous networks consisting of a...

In the synthesis of highly crystalline single-walled carbon nanotubes (SWCNTs), high growth temperatures are preferred, while formation impurity amorphous (a-C) causes termination SWCNT and degrades its properties. To remove this by-product, H2O CO2 have been employed in metal-catalyzed systems because their oxidizing ability. Recently, nonmetallic nanoparticles become one seed candidates melti...

The photoreduction of carbon dioxide (CO2) to solar fuels is meaningful in many fields relevant CO2 emission control, energy conversion and storage, carbon-neutral fuel production, conversion, cycle closure. on TiO2 nanotube arrays using concentrated sunlight under favorable photothermal conditions considered this work. a typical catalyst for the process while reaction rate still kept at rather...

Tungstate exchanged Mg-Al layered double hydroxides as a recyclable heterogenised catalyst along with H2O2 as an oxidant for the oxidation of sec-amines to nitrones is developed for the first time, Reactions proceed at a fast rate in aqueous media in a single step at room temperature in good to excellent yields. The heterogenised catalyst showed higher activity (TOF) over their homogeneous anal...

1. Introduction Porous solids with bimodal pore structures are widely used as catalyst supports. Examples are formed bodies, such as tablets, beads, extrudates, and monoliths, of molecular sieves, silica and alumina. The formed bodies are prepared usually by compacting fine micro-or mesoporous particles [1]. As a result, macropores are formed between the agglomerated particles. Recently, cataly...

An environment friendly synthesis of 2-amino-3-cyano-4-aryl-7,7-dimethyl-5-oxo-4H-5,6,7,8-tetrahydrobenzo[b]pyran, 2aryl benzimidazole and 2-aryl-4, 5-dihydro-1H-imidazole derivatives using Mg-Al hydrotalcite as an efficient catalyst has been developed. The excellent efficiency of the catalyst can be attributed to its Lewis acidic sites which resulted in higher reaction yields for different sub...

Chemical looping epoxidation (CLE) of ethylene to oxide (EO) presents an exciting alternative the incumbent technology direct with O2(g). In CLE, reaction is still catalysed by Ag but oxygen provided as Olattice from a solid metal oxide, eliminating need and limitations using Here, influence catalyst preparation in CLE investigated. The was impregnated on SrFeO3, which used donor CLE. Temperatu...

In addition to the identity of electrocatalyst materials, catalytic performance is strongly influenced by local steady-state environment perturbed reaction conditions (pressure and temperature) operating current density. Strategies developed experiments at low densities often cannot be simply extrapolated practical high electrocatalytic achieving over 1 A cm–2. this study, detailed microkinetic...

A unique six-fold interpenetrated hydrogen-bonded organic framework (HOF) has been developed, for the first time, for highly selective separation of C2H4/C2H6 at room temperature and normal pressure.