نتایج جستجو برای: surface area analysis bet

تعداد نتایج: 3733960  

Journal: :Chemical communications 2007
Peng Gao Milin Zhang Zhongyi Niu Quanping Xiao

Cu(OH)(2) nanoribbon arrays were synthesized by a simple room-temperature solution reaction for the first time, which exhibited noticeable hydrogen storage capacity and large BET surface area.

Journal: :iranian journal of health sciences 0
hamed biglari department of environmental health engineering, school of health, gonabad university of medical sciences, gonabad, iran nasibeh javan health promotion research center, zahedan university of medical sciences, zahedan, iran rasoul khosravi department of environmental health, school of medical sciences, birjand university of medical sciences, birjand, iran amin zarei

background and purpose: azo dyes including direct blue 71 (db71) are toxic, mutagenic and carcinogenic contaminants in effluents of industries. this study aimed to investigate the adsorption of db71 from aqueous solution onto pistachio hull waste (phw) as a low-cost adsorbent. materials and methods: a series of experiments were performed via batch adsorption technique to examine the effect of t...

In this research effect of synthesis method of magnesium aluminate as support of Ni catalysts at the reverse water gas shift (RWGS) reaction was evaluated. The RWGS reaction is applied in Carbon Dioxide Hydrogenation to Form Methanol via a Reverse Water-Gas Shift Reaction (CAMERE) process for the transformation of CO2 into methanol. The MgAl2O4 supports were prepared by sol-gel (M1), surfactant...

2014
T. A. Centeno F. Stoeckli

This paper examines the surface-related capacitance C/S of carbons with average micropore widths between 0.73 and 1.80 nm, using 1-2M H2SO4, 6M KOH and 1M (C2H5)4NBF4 in acetonitrile as electrolytes. Following corrections for pseudocapacitance effects for the aqueous electrolytes and the use of an average surface area suggested by independent techniques, different from the BET area, it appears ...

Journal: :Catalysts 2021

In this work, we investigated the influence of catalyst supports, particularly Brunauer, Emmett, and Teller (BET) surface area support materials, on membrane electrode assembly (MEA) performance. Keeping anode layer (CL), membrane, Pt loading, operating condition unchanged, prepared cathode CLs using catalysts identical content (30 wt% Pt) which were supported carbon black materials having diff...

Journal: :Chemosphere 2000
K J Rockne G L Taghon D S Kosson

Soot was harvested from five combustion sources: a dodecane flame, marine and bus diesel engines, a wood stove, and an oil furnace. The soots ranged from 20% to 90% carbon by weight and molar C/H ratios from 1 to 7, the latter suggesting a highly condensed aromatic structure. Total surface areas (by nitrogen adsorption using the Brunauer Emmett Teller, BET method) ranged from 1 to 85 m2 g(-1). ...

2006
Ru-Ling Tseng Szu-Kung Tseng Feng-Chin Wu

Carbonaceous adsorbents with controllable surface area and the microporous volume ratio (Vmicro/Vpore) were activated from carbonized corncobs (i.e., char) with KOH etching plus CO2 gasification in this work. Activated carbons derived from KOH/char ratio equal to 1 and CO2 gasification time from 0 to 60 min exhibited BET surface area increasing from 1071 to 1991 m2 g−1 and the Vmicro/Vpore valu...

Journal: :Chemical communications 2011
Jianming Li Wang Wan Henghui Zhou Jingjian Li Dongsheng Xu

We first report a facile hydrothermal route for preparing TiO(2)(B) nanowires with ultrahigh surface area, up to 210 m(2) g(-1). Due to the 1D structure, high BET surface area and shorter b-and c-axis channel across the nanowires, the obtained TiO(2)(B) nanowire was shown to be a good anode material for lithium-ion batteries, especially on the fast charging and discharging performance.

In the present study, the gamma alumina (γ-Al2O3) nano powders have been prepared with addition of 1%mol Co using an aqueous sol-gel method at lower temperature than the pure gamma alumina. The synthesis process accomplished by partial hydrolysis of the aqueous solution of metallic ions Al3+ and Co2+, with ammonia. The Al(NO3)3.9H2O and Co(NO3)2.6H2O salts were used as cations sources. The obta...

Abstract Zinc oxide is one of the most widely used and important materials in today's science and industry. In this study, ZnO nanoparticles were synthesized by hydrothermal method. Zinc acetate, citric acid and deionized water was respectively used as a source of zinc ion, solvent and chelating agent. In this study, the effect of citric acid concentration as an additive was studied on morphol...

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