The Function Study of TiO2 Catalysts on Zinc Air Battery

2011 ◽  
Vol 194-196 ◽  
pp. 882-885
Author(s):  
Chun Sen Zhou ◽  
Pei Xian Zhu ◽  
Jia Xin Guo
Keyword(s):  
Legal System ◽  
Electric Potential ◽  
Solution Method ◽  
Water Solution ◽  
Cathode Catalyst ◽  
Tio2 Powder ◽  
Turn On ◽  
Air Battery ◽  
Mineral Type ◽  
Electronic Microscope

Adopt the titanium sour D ester water solution legal system have of the Na rice TiO2 does the zinc-air battery cathode catalyst. Shoot line Yan to cast light a table method(XRD) and scan an electronic microscope method(SEM) with the X, and deeply shoot an electronic microscope method(TEM) to carry on token to the TiO2 powder sample of making,[1] result enunciation titanium sour D ester water solution method legal system have of TiO2 catalysts is the Rui titanium mineral type structure, grain the path be not the biggest over 50 nms.Adopt cathode very in the meantime to turn curve, the Heng electric potential turn on electricity with the Heng electric current turn on electricity etc. electricity chemistry test means, result detection,The TiO2 has a better electricity catalyst an activity in the alkalescence lie the quality 6 mols/LNaOH, in keeping with do the zinc-air battery cathode catalyst.

Bionanomaterials: Thermal Stability of the Oleic Acid / alpha- and beta-cyclodextrin Complexes

2008 ◽  
Vol 59 (9) ◽  
Author(s):  
Daniel I. Hadaruga ◽  
Nicoleta G. Hadaruga ◽  
Anca Hermenean ◽  
Adrian Rivis ◽  
Vasile Paslaru ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Oleic Acid ◽  
Solution Method ◽  
Degradation Products ◽  
Water Solution ◽  
Fatty Acid Esters ◽  
Cyclodextrin Complexes ◽  
Free Oleic Acid ◽  
Thermal Stability Of ◽  
Acid Esters

This paper presents the thermal stability of the oleic acid encapsulated in a- and b - cyclodextrin. The complexation of the oleic acid was achieved by the ethanol-water solution method and the nanoparticles were analyzed by DSC. The free oleic acid and the encapsulated one were subjected to the thermal degradation in the range of 50-150�C and the degradation products were identified and quantified by GC-MS analysis of the fatty acid esters obtained by deriving with methanol/boron trifluoride, both for free compounds and for the encapsulated ones. The oleic acid complexes were very stable in this range of temperature.

scholarly journals SYNTHESIS OF MESOPOROUS TITANIA BY POTATO STARCH TEMPLATED SOL-GEL REACTIONS AND ITS CHARACTERIZATION

2010 ◽  
Vol 10 (1) ◽  
pp. 26-31 ◽  
Author(s):  
Canggih Setya Budi ◽  
Indriana Kartini ◽  
Bambang Rusdiarso
Keyword(s):  
Water Solution ◽  
Potato Starch ◽  
Sol Gel ◽  
Building Blocks ◽  
Mesoporous Tio2 ◽  
Mesoporous Titania ◽  
Tio2 Powder ◽  
Nanocrystalline Tio2 ◽  
Template Removal ◽  
Starch Gel

Mesoporous titania powders with high-order crystalline building blocks had been synthesized through the sol-gel process using potato starch gel template. Internal spongelike pore structure of starch gel template was generated by heating the starch granules at 95 °C in water solution and freezing the starch gel at -15 °C. The synthesis routes were performed by immersing the starch gel template for 4 days into the white colloidal solution of TiO2 nanoparticles, which were prepared by hydrolyzing titanium (IV) tetraisopropoxide (TTIP) in ethanol at pH 1. Mesoporous TiO2 powders were obtained by two different ways of template removal, performed by calcination of the TiO2-starch composites at 600 °C for 4 h or combination of extraction with ethanol-HCl (2:1) at 80 °C and calcination at 500 °C for 4 h. Fourier Transform Infra Red (FT-IR) spectra shows both of template removal methods result in decreasing of characteristic vibrational band of the starch hydrocarbon on the resulted TiO2 powders. The X-Ray Diffraction (XRD) pattern imply that the concentrations of starch gel template influence the anatase crystallite peaks intensity of the synthesized TiO2 powders. TiO2 templated by 20% of starch sponges gel has highest intensity of anatase crystallite. Scherrer calculation inidicated that anatase particle size has nanoscale dimmension up to 12.96 nm. The nano-architecture feature of mesoporous TiO2 scaffolds was also evaluated by the Scanning Electron Microscope (SEM). It is shown that mesoporous TiO2 framework consist of nanocrystalline TiO2 particles as buiding blocks. The N2 adsorption-desorption isotherm curves assign that TiO2 powder resulted from extraction-calcination route has higher mesoporosity than that of only calcinated. The synthesized mesoporous TiO2 powder exhibits high Brunauer-Emmet-Teller (BET) specific surface area up to 65.65 m2/g.   Keywords: mesoporous TiO2, potato starch, template

Optimal cobalt oxide (Co3O4): Graphene (GR) ratio in Co3O4/GR as air cathode catalyst for air-breathing hybrid electrolyte lithium-air battery

2020 ◽  
Vol 471 ◽  
pp. 228373 ◽  
Author(s):  
Si-Han Peng ◽  
Tse-Hsi Chen ◽  
Chih-Hsun Lee ◽  
Hsin-Chun Lu ◽  
Shingjiang Jessie Lue
Keyword(s):  
Cobalt Oxide ◽  
Cathode Catalyst ◽  
Air Cathode ◽  
Air Breathing ◽  
Air Battery

scholarly journals Electrochemical Activity of a La0.9Ca0.1Co1−xFexO3Catalyst for a Zinc Air Battery Electrode

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Seungwook Eom ◽  
Seyoung Ahn ◽  
Sanghwan Jeong
Keyword(s):  
Oxygen Reduction ◽  
Electrochemical Measurement ◽  
Electrochemical Performances ◽  
Cathode Catalyst ◽  
Air Cathode ◽  
Substitution Level ◽  
Battery Electrode ◽  
Substitution Ratio ◽  
Air Battery ◽  
Battery Application

The optimum composition of cathode catalyst has been studied for rechargeable zinc air battery application. La0.9Ca0.1Co1−xFexO3  (x=0–0.4)perovskite powders were prepared using the citrate method. The substitution ratio of Co2+with Fe3+cations was controlled in the range of 0–0.4. The optimum substitution ratio of Fe3+cations was determined by electrochemical measurement of the air cathode composed of the catalyst, polytetrafluoroethylene (PTFE) binder, and Vulcan XC-72 carbon. The substitution by Fe enhanced the electrochemical performances of the catalysts. Considering oxygen reduction/evolution reactions and cyclability, we achieved optimum substitution level ofx=0.1in La0.9Ca0.1Co1−xFexO3.

A label-free turn-on fluorescence probe for rapidly distinguishing cysteine over glutathione in water solution

2016 ◽  
Vol 500 ◽  
pp. 1-5 ◽  
Author(s):  
Liqiang Yan ◽  
Zhineng Kong ◽  
Wei Shen ◽  
Wenqi Du ◽  
Yan Zhou ◽  
...  
Keyword(s):  
Fluorescence Probe ◽  
Water Solution ◽  
Label Free ◽  
Turn On

Highly durable and active non-precious air cathode catalyst for zinc air battery

2011 ◽  
Vol 196 (7) ◽  
pp. 3673-3677 ◽  
Author(s):  
Zhu Chen ◽  
Ja-Yeon Choi ◽  
Haijiang Wang ◽  
Hui Li ◽  
Zhongwei Chen
Keyword(s):  
Cathode Catalyst ◽  
Air Cathode ◽  
Air Battery

scholarly journals Preparation and luminescent properties of a rare earth borate red light-emitting material

2018 ◽  
Vol 36 (3) ◽  
pp. 359-363
Author(s):  
B. Ying ◽  
W.G. Sheng
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Solution Method ◽  
Water Solution ◽  
Red Light ◽  
Luminescent Properties ◽  
Spontaneous Crystallization ◽  
Light Emitting ◽  
Structure Morphology ◽  
Rare Earth Borate

AbstractA new hydrated rare earth borate K2O·CaO·4B2O3·12H2O:Eu was prepared by water solution method. The crystal structure, morphology, luminescence properties were investigated via XRD, IR, TG-DSC and SEM, respectively, and it was shown that one single crystal was obtained via spontaneous crystallization. The luminescent properties were also investigated by F-4600 spectrophotometer.

scholarly journals Ultrasonochemically-induced MnCo2O4 nanospheres synergized with graphene sheet as a non-precious bi-functional cathode catalyst for rechargeable zinc–air battery

2019 ◽  
Vol 1 (6) ◽  
pp. 2392-2399 ◽  
Author(s):  
Shivaraju Guddehalli Chandrappa ◽  
Prabu Moni ◽  
Guruprakash Karkera ◽  
Annigere S. Prakash
Keyword(s):  
Graphene Sheet ◽  
High Performance ◽  
Sonochemical Method ◽  
Cathode Catalyst ◽  
One Pot ◽  
Nano Composite ◽  
Air Battery

MnCo2O4–GS nano composite by a one-pot sonochemical method and its high performance as an active cathode catalyst for a Zn–air battery.

Yttrium fluoride doped nitrogen-contained carbon as an efficient cathode catalyst in zinc-air battery

2020 ◽  
Vol 472 ◽  
pp. 228451
Author(s):  
Wei Wang ◽  
Yajun Mi ◽  
Yumao Kang ◽  
Xianyi Liu ◽  
Sarah Imhanria ◽  
...  
Keyword(s):  
Cathode Catalyst ◽  
Yttrium Fluoride ◽  
Air Battery
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