Auflistung Nach Schlagwort "Transmission electron microscopy"
Anzeige der Dokumente 1-13 von 13
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Bi- and tri-metallic Pt-based anode catalysts for direct ethanol fuel cells
(2004)In the present work, several Pt-based anode catalysts supported on activated carbon XC-72R were prepared by using a novel method, characterized and tested. XRD analysis and TEM images indicated that all of anode catalysts ... -
Ca, P and collagen fibrils period measurements in the vertebras of lordotic Sparus aurata
(2015)Skeletal deformities of Gilthead seabream (Sparus aurata) is a major factor that effects the production cost, the external morphology of the fish as well as its survival and growth. Adult individuals of S. aurata were ... -
Direct alcohol fuel cells: A novel non-platinum and alcohol inert ORR electrocatalyst
(2008)In the present investigation, a series of binary PdxFey/C electrocatalysts for the oxygen reduction reaction (ORR) was synthesized in a very short time by employing a pulse-microwave assisted polyol method. The physico-chemical ... -
Direct ethanol fuel cells based on PtSn anodes: The effect of Sn content on the fuel cell performance
(2005)In the present work, several carbon supported PtSn catalysts with different Pt/Sn atomic ratios were synthesized and characterized by X-ray diffraction (XRD), Transmission electron microscopy (TEM) and X-ray photoelectron ... -
Efficient and poison-tolerant PdxAuy/C binary electrocatalysts for glucose electrooxidation in alkaline medium
(2014)Carbon supported PdxAuy binary catalysts for glucose electrooxidation and detection were prepared by a modified pulse microwave assisted polyol method. The physico-chemical properties were obtained by X-ray diffraction ... -
Halloysite nanotubes noncovalently functionalised with SDS anionic surfactant and PS-b-P4VP block copolymer for their effective dispersion in polystyrene as UV-blocking nanocomposite films
(2017)Asimple and versatilemethod is reported for the noncovalent functionalisation of natural and "green" halloysite nanotubes (HNTs) allowing their effective dispersion in a polystyrene (PS) thermoplastic matrix via solvent ... -
KOH-activated multi-walled carbon nanotubes as platinum supports for oxygen reduction reaction
(2010)In the present investigation, multi-walled carbon nanotubes (MWCNTs) thermally treated by KOH were adopted as the platinum supporting material for the oxygen reduction reaction electrocatalysts. FTIR and Raman spectra were ... -
Preparation of graphitic mesoporous carbon for the simultaneous detection of hydroquinone and catechol
(2013)A graphitic mesoporous carbon (GMC) had been successfully synthesized using Ni-Fe layered double hydroxide (LDH) as both template and catalyst under a relatively low pyrolysis temperature. The techniques of X-ray diffraction, ... -
Pt based anode catalysts for direct ethanol fuel cells
(2003)In the present work several Pt-based anode catalysts supported on carbon XC-72R were prepared with a novel method and characterized by means of XRD, TEM and XPS analysis. It was found that all these catalysts are consisted ... -
Pt/CN-doped electrocatalysts: Superior electrocatalytic activity for methanol oxidation reaction and mechanistic insight into interfacial enhancement
(2017)Nitrogen-doped ordered mesoporous carbon (NOMC) is studied as the support to synthesize a Pt/CN-doped catalyst for methanol oxidation reaction (MOR). The effects of carbon dimension and metal loading are investigated by ... -
Role of microbial diversity for sustainable pyrite oxidation control in acid and metalliferous drainage prevention
(2020)Acid and metalliferous drainage (AMD) remains a challenging issue for the mining sector. AMD management strategies have attempted to shift from treatment of acid leachates post-generation to more sustainable at-source ... -
Simple method for coating Si (100) surfaces with ferritin monolayers-Iron oxide quantum dots
(2011)With the goal to develop iron oxide quantum dots we developed a simple method to spread horse spleen ferritin monolayers on a Si (1 00) surface. Application of atomic force microscopy and spectroscopic ellipsometry showed ... -
Synthesis of nitrogen-doped mesoporous carbon nanosheets for oxygen reduction electrocatalytic activity enhancement in acid and alkaline media
(2019)In the present work, nitrogen-doped mesoporous carbon nanosheets (NMCNs) are prepared and extensively investigated for the oxygen reduction reaction. Initially, by using dual templates, viz. graphene oxide and a cationic ...