Phthalic, maleic and succinic anhydrides have been reacted with aromatic amines to obtain the corresponding monoacid monoamides. The latter have been each transformed into the corresponding cyclic imide derivatives by treating with SOCl2. Alternatively, anhydrides have been reacted with methanolic KOH to obtain monomethyl ester derivatives which on reaction with aromatic amines in the presence ...

Abstract. This work investigates the deposition of Pt nanoparticles onto carbon aerogels (CA), derived from microcrystalline cellulose. Nanoparticles are synthesised via impregnating the CA with H2PtCl6 followed by reduction either under H2 at 300 C or in a basic NaBH4 solution. H2 reduction yields uniform Pt nanoparticles (average diameter < 2nm) dispersed over the CA surface as revealed by Tr...

Sodium borohydride (NaBH4) hydrogen storage systems offer many advantages for hydrogen storage applications. The physical processes inside a NaBH4 packed bed reactor involve multi-component and multi-phase flow and multi-mode heat and mass transfer. These processes are also coupled with reaction kinetics. To guide reactor design and optimization, a reactor model involving all of these processes...

Chemical synthesis of crystalline and nanoscale cobalt-iron metal boride powders was studied using hydrous chlorides NaBH4. The effects precursor concentration optimized conditions on the phase formation, microstructure, magnetic properties were investigated. After applying a reaction CoCl2·6H2O-FeCl3·6H2O-NaBH4 at 850 °C, (CoFe)B2, (CoFe)B, Co2B, Fe3B, Fe0.71Co0.29 phases obtained from differe...

A significant obstacle in the large-scale applications of sodium borohydride (NaBH4) for hydrogen storage is its high cost. Herein, we report a new method to synthesize NaBH4 by ball milling hydrated tetraborate (Na2B4O7 ⋅ 10H2O) with low-cost Al or Al88Si12, instead Na, Mg Ca. An effective strategy developed facilitate mass transfer during reaction introducing NaH enable formation NaAlO2 dense...

Nanoconfinement is an effective strategy to tune the properties of metal hydrides. It has been extensively employed modify ionic conductivity LiBH4 as electrolyte for Li-ion batteries. However, approach does not seem be applicable other borohydrides such NaBH4, which found reach a limited improvement in 10−7 S cm−1 at 115 °C upon nanoconfinement Mobil Composition Matter No. 41 (MCM-41) instead ...

This article aimed to compare the degradation efficiencies of different reactants applicable for oxidative or reductive a chlorinated anionic azo dye, Mordant Blue 9 (MB9). In this article, broadly applied Fenton oxidation process was optimized treatment MB9, and obtained results were compared with other innovative chemical reduction methods. we agents such as Fe0 (ZVI), Al0, Raney Al-Ni alloy,...

the synthesis of smcl3(thf)3 from smcl3.6h2o is described. the reaction of smcl3(thf)3 with nabh4 in dry thf gave white microcrystalline tris (tetrahydroborato) tris (tetrahydrofuran) samarium (iii), sm(bh4)3(thf)3. the vibrational and magnetic properties of sm(bh4)3(thf)3 have been studied.