The V2O5 nanotubes and PEG surfactant V2O5 nanotubes were synthesized using simple hydrothermal method. The morphology and microstructure of the samples were investigated by XRD, FTIR, SEM and TEM analysis. © OSA...
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ZnSe passivation layer onto the CuInS2 quantum dots sensitized solar cells was introduced by the SILAR method. The photovoltaic performance was enhanced and the resistance was lower than without passivation layer or w...
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MoO2 nanorods were synthesized by hydrothermal method using ethyl alcohol as reducing agent. The pristine MoO2 exhibited a reversible discharge capacity of 300 mAh·g-1 under the current density of 0.1 mA·cm-...
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The downgraded and upgraded BaZrxTi2-xO5 (x=0, 0.01, 0.02, 0.03 and 0.04) films normal to Pt/Ti/SiO2/Si substrates were prepared by sol-gel method. The microstructure and dielectric properties of the compositionally g...
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One-dimensional nanomaterials have offered a range of unique advantages in many energy related fields, such as a short Li-ion insertion/extraction distance, facile strain relaxation upon electrochemical cycling, enhan...
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In this paper, highly dispersive nanosized copper particles with a mean particle size of less than 6 nm are prepared by an environmentally friendly chemical reduction method. Non-toxic L-ascorbic acid acts as both red...
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In this paper, highly dispersive nanosized copper particles with a mean particle size of less than 6 nm are prepared by an environmentally friendly chemical reduction method. Non-toxic L-ascorbic acid acts as both reducing agent and antioxidant in ethylene glycol in the absence of any other capping agent. Transmission electron microscopy （TEM） is used to characterize the size and morphology of Cu nanoparticles. The results of UV-Vis spectroscopy （UV-Vis）, energy dispersive spectroscopy （EDS） and high resolution TEM （HRTEM） illustrate that the resultant product is pure Cu nanocrystals. The size of Cu nanoparticles is remarkably impacted by the order of reagent addition, and the investigation reveals the reaction procedure of Cu^2＋ ions and L-ascorbic acid.
Monolayer chemically converted graphene （CCG） nanosheets can be homogeneously self-assembled onto silicon wafer modified by 3-aminopr- opyl triethoxysilane （APTES） to form very thin graphene film. The CCG film was...
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Monolayer chemically converted graphene （CCG） nanosheets can be homogeneously self-assembled onto silicon wafer modified by 3-aminopr- opyl triethoxysilane （APTES） to form very thin graphene film. The CCG film was characterized by FT-IR, XRD, SEM, TEM and AFM. Results show that CCG sheets formed monolayer film after assembled onto silicon wafer and there is a very tight chemical bond between sheets and wafer. Furthermore, the electrical measurements revealed that the monolayer graphene film has an excellent electrical conductivity.
Pt , as a precious metal, is an important component of fuel cell catalyst, however the impurities in polymer electrolyte membrane fuel cell(PEMFC) has a great influence on the electrochemical activity. This paper stud...
Pt , as a precious metal, is an important component of fuel cell catalyst, however the impurities in polymer electrolyte membrane fuel cell(PEMFC) has a great influence on the electrochemical activity. This paper studies the electrochemical activity influence of isopropyl alcohol(IPA) on a flat plate Pt and Pt/C electrodes by means of cyclic voltammograms and oxygen reduction test methods, the influence of the research results show that the addition of isopropyl alcohol will not change the stripping potentials of hydrogen, but it will obviously block the absorption of proton at the Hads potentials,and the biggest oxidation current on the Pt/C electrode was larger than that on the flat plate Pt electrode;we also find that the present of IPA reduces the limit current density of the plate Pt electrode,thus further influence on the performance of the catalyst in PEMFC.
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