Search Results - subject:"Nanoparticle"

Did you mean: subject:"nanoparticles" (118 results)

Carbon supported Ag nanoparticles with different particle size as cathode catalysts for anion exchange membrane direct glycerol fuel cells

Wang, Zhichao; Xin, Le; Zhao, Xusheng; Qiu, Yang; … - In: Renewable Energy 62 (2014) C, pp. 556-562

The effect of Ag particle size on oxygen reduction reaction (ORR) at the cathode was investigated in anion exchange membrane direct glycerol fuel cells (AEM-DGFC) with oxygen as an oxidant. At the anode, high purity glycerol (99.8 wt%) or crude glycerol (88 wt%, from soybean biodiesel) was used...

Persistent link: https://www.econbiz.de/10011044786

Palladium nanoparticle catalysts synthesis on graphene in sodium dodecyl sulfate for oxygen reduction reaction

Kakaei, Karim; Gharibi, Hussien - In: Energy 65 (2014) C, pp. 166-171

We prepare large areas of graphene on carbon paper from graphite powder and anionic surfactant, assisted electrochemical exfoliation as previous work. Using a four-point probe technique, we found the conductivity of graphene on carbon paper to be 66 mS cm−1, which is approximately 1.2 and...

Persistent link: https://www.econbiz.de/10011052985

Pd nanoparticles with tunable diameter deposited on carbon nanotubes with enhanced hydrogen storage capacity

Wenelska, Karolina; Michalkiewicz, Beata; Chen, Xuecheng; … - In: Energy 75 (2014) C, pp. 549-554

In situ synthesis of Pd nanoparticles supported on multiwalled CNT (carbon nanotubes) is reported. The size of the nanoparticles can be easily tuned via application of different experimental conditions. The hydrogen storage properties of Pd supported on CNT at room temperature were examined in...

Persistent link: https://www.econbiz.de/10011053072

The use of superporous p(AAc (acrylic acid)) cryogels as support for Co and Ni nanoparticle preparation and as reactor in H2 production from sodium borohydride hydrolysis

Sahiner, Nurettin; Seven, Fahriye - In: Energy 71 (2014) C, pp. 170-179

Here, we report for the first time the use of p(AAc (p(acrylic acid)) cryogel for in situ metal nanoparticle …

Persistent link: https://www.econbiz.de/10011055797

Effects of reduction temperature and pH value of polyol process on reduced graphene oxide supported Pt electrocatalysts for oxygen reduction reaction

Chou, Chang-Chen; Liu, Cheng-Hong; Chen, Bing-Hung - In: Energy 70 (2014) C, pp. 231-238

Effects of the reduction temperature and the pH value of Pt precursor solutions of the polyol reduction process on the resulted Pt electrocatalysts supported on the reduced graphene oxide (Pt/r-GO) nanosheets for the ORR (oxygen reduction reaction) are investigated. The Pt/r-GO catalyst...

Persistent link: https://www.econbiz.de/10011055798

Application of magnesium sulfate and its nanoparticles for enhanced lipid production by mixotrophic cultivation of algae using biodiesel waste

Sarma, Saurabh Jyoti; Das, Ratul Kumar; Brar, Satinder Kaur - In: Energy 78 (2014) C, pp. 16-22

CG (Crude glycerol) is one of the major wastes of biodiesel production process. It can be used as a substrate for lipid production by algae and the produced lipid can be recycled as a feedstock for biodiesel production. In order to avoid substrate inhibition, lipid production media are prepared...

Persistent link: https://www.econbiz.de/10011117587

Effects of the morphology of nanostructured ZnO films on the efficiency of dye-sensitized solar cells

Giannouli, M.; Spiliopoulou, F. - In: Renewable Energy 41 (2012) C, pp. 115-122

The main aim of this work was to examine the physical characteristics of nanostructured thin films used in dye-sensitized solar cells. Parameters such as the thickness and the morphology of the films were investigated, as these factors greatly affect the efficiency and the stability of...

Persistent link: https://www.econbiz.de/10011046401

Chelating agent assisted heat treatment of carbon supported cobalt oxide nanoparticle for use as cathode catalyst of polymer electrolyte membrane fuel cell (PEMFC)

Huang, Chia-Hung; Liu, Shyh-Jiun; Hwang, Weng-Sing - In: Energy 36 (2011) 7, pp. 4410-4414

Cobalt-based catalysts for the oxygen reduction reaction (ORR) in polymer electrolyte membrane fuel cell (PEMFC) have been successfully incorporated cobalt oxide (Co3O4) onto Vulcan XC-72 carbon powder by thermal decomposition of Co–ethylenediamine complex (ethylenediamine, NH2CH2CH2NH2,...

Persistent link: https://www.econbiz.de/10011055891

FORMATION, STRUCTURE AND PROPERTIES OF HIGHLY ORDERED SUB-30-nm PHASE CHANGE MATERIALS (GST) NANOPARTICLE ARRAYS

LIAO, YUANBAO; WU, JIAJIA; XU, LING; YANG, FEI; LIU, WENQING - In: Surface Review and Letters (SRL) 17 (2010) 04, pp. 405-410

Chalcogenide phase change material Ge1Sb2Te4 (GST) nanoparticle arrays with long-range-order were fabricated by using a … monolayer of self-assembled polystyrene (PS) spheres as mask. The morphology of nanoparticle arrays can be controlled via … highly uniform GST nanoparticle arrays with particle density around 109 cm-2 were formed. The sizes of nanoparticles can be …

Persistent link: https://www.econbiz.de/10008863951

COMPUTATIONAL FLUID DYNAMICS ANALYSIS OF FABRICATED MICRONOZZLE FOR SUPERSONIC PARTICLE DEPOSITION

JUNG, KYUBONG; SONG, WOOJIN; CHUN, DOO-MAN; YEO, JUN-CHEOL - In: Surface Review and Letters (SRL) 17 (2010) 01, pp. 45-49

A micronozzle was applied in nanoparticle deposition system (NPDS) for supersonic deposition. To determine whether …

Persistent link: https://www.econbiz.de/10008799839