نتایج جستجو برای: h3po4
تعداد نتایج: 559 فیلتر نتایج به سال:
Expanding the range of supercapacitor operation to temperatures above 100 °C is important because this would enable capacitors to operate under the severe conditions required for next-generation energy storage devices. In this study, we address this challenge by the fabrication of a solid-state supercapacitor with a proton-conducting Sn(0.95)Al(0.05)H(0.05)P(2)O(7) (SAPO)-polytetrafluoroethylen...
زئولیت هامودی هستند که به عنوان جاذب تبادلگر و کاتالیزور کاربردهای زیادی دارند. یکی از مهمترین زئولیت ها که به ویژه به عنوان کاتالیزور کاربردهای صنعتی دارد زئولیت zsm-5 می باشد در این پروژه واکنش ایزوپروپیل دار کردن بنزن با 2- پروپانل در شرایط vapor phase بر روی کاتالیست های h3po4-zsm%15 و h-zsm-5 انجام شد و عملکرد این دو کاتالیست برای تهیه کیون که یک ماده حائز اهمیت لز لحاظ صنعتی می باشد، مقای...
Phosphoric acid (H3PO4) is a product that can be used as stabilizing additive for tropical soils in an exploratory manner by the construction industry. For drying process of this grain, its husks are fuel ovens, generating rice husk ash (RHA), which considered environmental liability if not reused. In sense, paper aimed to evaluate resilient behavior and simple compressive strength, at differen...
Core-shell structured amorphous FeSiBCr@phosphate/silica powders were prepared by phosphating and sodium silicate treatment. The soft magnetic composites (SMCs) fabricated based on these powders. effects of phosphoric acid (H3PO4) concentration annealing temperature their properties investigated. During the process, powder coated with a low H3PO4-ethanol solution leads to uneven phosphate coati...
AIM The aim of this study was to assess the influence of surface texture and etching technique on surface roughness (Ra) and bond strength (BS) to enamel and to determine if a correlation exists between them. METHODS AND MATERIALS Fifty enamel blocks were either roughened with 600-grit SiC paper or polished with diamond pastes. After establishing ten test groups (n=5), the initial Ra measurem...
To reduce requirements for conventional chemical fertilizer and alleviate salinity stress in soils, a glasshouse experiment was conducted to assess the effects of enriched biochar on phosphatase activity, microbial respiration wheat yield non-saline saline soils from Lake Urmia basin (electrical conductivities 2 dS.m−1 15 dS.m−1, respectively). Nine treatments were tested: control, 1:1 mixture ...
Activated carbon (AC) has been prepared from raw coconut pith and coconut pith impregnated with H3PO4 and NaOH solutions separately. AC was characterized with SEM, particle size analyzer and proximate analyzer. Adsorption studies were carried out using UV and atomic absorption spectrophotometer to find its effectiveness. AC obtained from coconut pith treated with phosphoric acid was found compa...
PACKETT, L. V. (Purdue University, Lafayette, Ind.), AND R. W. MCCUNE. Determination of steam-volatile organic acids in fermentation media by gas-liquid chromatography. Appl. Microbiol. 13:22-27. 1965.-Five gas chromatographic liquid phases (25% Carbowax 20M plus 4% H3PO4, 17.5% dioctyl sebacate plus 7.5% sebacic acid, 17.5% dioctyl sebacate plus 7.5% docosanoic acid, 5% Tween 80, and 20% LAC29...
For the first time TFAA/H3PO4 has facilitated the direct and metal-free N-acylation of carbazoles leading to a number of N-acylated derivatives. Several of these compounds were found to be promising when tested for their anti-proliferative properties against oral cancer cell lines.
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