Proton exchange membranes for fuel cells were synthesized from the blend of copolymers of vinyl acetate-acrylic ester and styrene-acrylic ester, which were modified by sulfonation and addition of silica gel. Water uptake, ion exchange capacity, infrared spectroscopy and tensile tests were applied to characterize the prepared membranes. The results show that the prepared membranes with the proce...

the cunica nanopanicles have been synthesized by sol-gel auto-combusson. microwave and co-precipitationtechniques. then, the results of the three techniques were compared. in the vol-ael auto-combustion synthesiswas used glycine as a fuel. at first, sol was prepared. then, gel was achieved from drying so'. the prepared gelwas burnt at 350°c. in the noicrowavc technique, gel was prepared. then, ...

a synthesis of doped ceria by combustion method is performed. two types of fuel such asurea and glycine is used to investigate the effect of fuel reactivity and reaction rate on themorphology of the resulted powders. thermo gravimetric analysis is carried out by (tg/dta,rigaku thermalplus tg 8120) to study the exo–endo temperature of as-received powder. thecrystalline phases are identified by x...

Endogenous energy stores are continuously oxidized for fuel . Triglyceride present in adipose tissue is the major fuel reserve in the body and is critical for survival during periods of starvation (Table 15-1) . The high energy density and hydrophobic nature of triglycerides make it a fivefold better fuel per unit mass than glycogen . Triglycerides liberate 9 .3 kcal/g when oxidized and are com...

A Synthesis of doped ceria by combustion method is performed. Two types of fuel such asurea and glycine is used to investigate the effect of fuel reactivity and reaction rate on themorphology of the resulted powders. Thermo gravimetric analysis is carried out by (TG/DTA,Rigaku Thermalplus TG 8120) to study the exo–endo temperature of as-received powder. Thecrystalline phases are identified by X...

in this research, a sol gel autocaombustion route has been proposedto synthesize alumina-zirconia composite powders, usingammonium bicarbonate as a new fuel. then the effect of calcinationtemperature on phase transformation and crystallite sizes wasinvestigated. to characterize the products xrd, tem and betanalyses were used. xrd patterns of as-synthesized powder andcalcined powders at 1100 ◦c ...

38 The performance and dynamics of the bacterial communities in the biofilm and suspended 39 culture in the anode chamber of sucrose-fed microbial fuel cells (MFCs) were studied by using 40 Denaturing Gradient Gel Electrophoresis (DGGE) of PCR-amplified partial 16S rRNA genes 41 followed by species identification by sequencing. The power density of MFCs was correlated to 42 the relative proport...

The CuNiCA nanopanicles have been synthesized by sol-gel auto-combusson. microwave and co-precipitationtechniques. Then, the results of the three techniques were compared. In the vol-ael auto-combustion synthesiswas used glycine as a fuel. At first, sol was prepared. Then, gel was achieved from drying so'. The prepared gelwas burnt at 350°C. In the noicrowavc technique, gel was prepared. Then, ...