نتایج جستجو برای: sapo

تعداد نتایج: 570  

Journal: :Chemcatchem 2023

The Front Cover illustrates an artwork design for showcasing the developed bifunctional NiRe/SAPO-11 catalyst along with “KHON”, masked dance drama in Thailand. In their Research Article, A. Srifa and co-workers designed Re nanoparticles decorated on Ni/SAPO-11 economically combined process of direct triglycerides hydro-deoxygenation isomerization into low-cold flow diesel. diesel production co...

Journal: :Archiv der Pharmazie 1825

2015
Takashi Hibino Kazuyo Kobayashi Masahiro Nagao Shinji Kawasaki

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مهندسی شیمی 1390

در این پروژه از پایه های زئولیتی متفاوت برای مقایسه عملکرد آنها در شکست کاتالیستی حرارتی نفتا استفاده شد. بدین منظور پایه کاتالیستی sapo-34 به دو روش سنتز شدند وپایه سوم نیز hzsm-5 در نظر گرفته شد. به منظور اصلاح خاصیت اسیدی و قلیایی و عملکرد بهتر آنها در شکست کاتالیستی از فلز سریم و لانتانیوم استفاده شد. پس از بارگذاری سریم و لانتانیوم به روش تلقیح مرطوب، کاتالیست های اصلاح شده برای تعیین دقیق...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
peyman emrani shohreh fatemi siamak ashraf talesh

an account is presented on investigation of the effects of synthesis parameters, i.e., reaction sources, silica to alumina ratio, acid molar ratio and crystallization conditions on the crystallinity, morphology and particle size of sapo-34. the synthesis conditions were designed to produce small particles with narrow size range. the prepared samples were characterized by xrd and sem techniques ...

Journal: :Industrial & Engineering Chemistry Research 2021

Efficient and one-pot conversion of biomass-derived carbohydrate into highly value-added 5-hydroxymethylfurfural (HMF) is a crucial reaction step for the valorization biomass resources toward bio-based chemicals fuels. In this work, series Sn/SAPO-34 catalysts were prepared through impregnation evaluated in glucose to HMF. The physicochemical properties systematically characterized by SEM, XRD,...

Journal: :Transactions-Materials Research Society of Japan 2021

Commercialized silicoaluminophosphate-34 (SAPO-34) zeolite was successfully blended in the polyethersulfone (PES) polymer to prepare mixed matrix membranes (MMMs). The CO2 permeability and CO2/CH4 ideal selectivity of 30 wt% SAPO-34/PES MMM at 0.1 MPa 35 °C were 15 barrer 51, respectively. In our previous paper, PES MMMs using laboratory-made SAPO-34 provided both higher than neat membrane. per...

سنتز موفقیت آمیز غربال مولکولی سیلیکوآلومینوفسفات SAPO-34 با استفاده از روش هیدروترمال و استفاده از آلومینیوم­کلرید به عنوان منبع آلومینیوم و دی­اتیل­آمین به عنوان الگوساز انجام گرفت و اثر مقدار الگوساز (موثر بر میزان pH مخلوط پیش ماده) و دما و زمان کریستالیزاسیون بر سنتز ساختار چابازیت (SAPO-34) بررسی شد. نمونه­ ها توسط آنالیزهای XRD، FT-IR...

Journal: :Online Information Review 2011
Carla Teixeira Lopes Cristina Ribeiro

Design/methodology/approach: We conducted a user study in which users evaluated the relevance of documents retrieved by 4 search engines in 2 different health information needs. Users could choose between generalist (Bing, Google, Sapo and Yahoo!) and health-specific search engines (MedlinePlus, SapoSaúde and WebMD). We then analyse the differences between search engines and groups of informati...

Journal: :Catalysts 2021

The ethanol dispersion method was employed to synthesize a series of MnOx/SAPO-34 catalysts using SAPO-34 with the hierarchical pore structure as zeolite carrier, which were prepared by facile acid treatment citric acid. Physicochemical properties characterized XRD, XPS, BET, TEM, NH3-TPD, SEM, FT-IR, Py-IR, H2-TRP and TG/DTG. NH3-SCR performances evaluated at low temperatures. Results show tha...

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