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Facile cathodic electrosynthesis and characterization of iron oxide nano-particles

Progress in Natural Science:Materials International 2013年第1期23卷 51-54页

作者： Taher Yousefi Reza Davarkhah ahmad nozad golikand Mohammad Hossein Mashhadizadeh ahmad Abhari NFCRS Nuclear Science and Technology Research InstituteP.O.Box 11365/8486TehranIran Materials Research School NSTRIP.O.Box:14395-836 TehranIran 3. Department of ChemistryTarbiat Moallem UniversityP.O.Box:31979-37551 TehranIran 4. NFCRSNuclear Science and Technology Research InstituteP.O.Box 11365/8486TehranIranx

Fe2O3 nano-particles have been synthesized by simple cathodic electrodeposition from the low-temperature nitrate *** morphology and crystal structure of the obtained oxide powder were analyzed by means of scanning and transmission microscopy(SEM and TEM),X-ray diffraction(XRD) and Fourier transform infrared(FTIR) *** behavior and phase transformation during the heat treatment of as-deposited sample were investigated by differential scanning calorimetry(DSC) and thermogramimetric analysis(TGA).The results showed that the deposited Fe2O3 was composed of the nanoparticles with grain size of approximately 10-60 nm.A serious problem during cathodic electrodeposition of iron oxide was splashing of deposit into electrolyte due to its low *** problem was tackled by reducing the bath temperature and dielectric constant of solvent.

关键词： Iron Oxide Electrochemical Deposition Nano Oxides Nanostructures Characterization

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Platinium Nanoparticles Deposited on Oxygen-Containing Functional Groups at Carbon Vulcane XC-72 as a Cathode Catalyst for Direct Methanol Fuel Cell

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复旦学报（自然科学版） 2007年第5期46卷 840-页

作者： Sajjad Sadaghat Sharehjini ahmad nozad golikand Mohammad Yari Islamic Azad University Shahryar Shahr-e-Qods and Islamshahr Branch Tehran

1 Results Surface oxidized carbon vulcane XC-72 as catalyst support, prepared by chemically anchoring Pt onto the surface modified carbon vulcane XC-72. The nanoparticles of Pt are synthesized by reduction of H2PtCl6 with sodium borohydride in a 5.5 buffer solution of sodium citrate, the complexation of citrate with metal ions is beneficial to the formation of nanoparticles. For comparison, an electrode is prepared by E-Tek Pt/C 20 Wt% with a typical Pt loading of 50 μg·cm-2, that shows higher specifi...

关键词： modified carbon vulcane XC-72 Pt nanoparticles fuel cell methanol electro-oxidation

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New Synthesis of Pt-Ru Nanoparticles on Surface Modified Carbon Vulcane XC-72 as an Effective Catalyst for Direct Methanol Fuel Cell

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复旦学报（自然科学版） 2007年第5期46卷 827-页

作者： ahmad nozad golikand Sajjad Sadaghat Sharehjini Mohammad Yari Islamic Azad University Shahryar Shahr-e-Qod Branch Tehran

1 Results Pt-Ru nanoparticles are synthesised on the surface oxidized carbon Vulcane XC-72 as catalyst support by chemically anchoring Pt and Ru onto the surface of modified carbon vulcane XC-72 (by refluxing in 70% HNO3 at 120 ℃ for 12 h to introduce surface functional groups) .The nanoparticles of Pt and Ru are synthesized by reduction of H2PtCl6 and K4Ru(CN)6 with sodium borohydride in a 5.5 buffer solution of sodium citrate,the complexation of citrate with metal ions is beneficial to the formati...

关键词： carbon vulcane XC-72 Pt-Ru nanoparticles fuel cell methanol electro-oxidation

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