نتایج جستجو برای: ni co catalyst
تعداد نتایج: 412488 فیلتر نتایج به سال:
A novel generic method of silica supported catalyst system generation from a fluid state is presented. The technique is based on the combined flow and radiation (such as microwave, thermal or UV) induced co-assembly of the support and catalyst precursors forming nano-reactors, followed by catalyst precursor decomposition. The transformation from the precursor to supported catalyst oxide state c...
The methanation of CO over a 20 wt % Ni/Al2O3 catalyst was studied with different transient experiments. dissociation found to be reversible and faster than the formation methane. SSITKA ...
چکیده در این پایان نامه اثر کاتالیزوری کاتالیزورهای مولکولارسیو اکسید منگنز در دو قسمت مورد بررسی قرار گرفته است. در قسمت اول، ابتدا کاتالیزور اکسید منگنز k-oms-2 ساخته شده و پس از جایگزین شدن یک فلز واسطه در داخل حفره این ساختار کاتالیزور m-k-oms-2 که m=ni,co,cu,mo می باشد تشکیل شده و در حضور اکسید کننده ترشیوبوتیل هیدروپراکسید (tbhp) به عنوان کاتالیزور ناهمگن در اکسایش بنزیل الکل به کار رف...
The reactions to produce liquid biofuels from a palm fatty acid distillate (PFAD) under hydrogen absence were carried out using 10 wt% NiO/zeolite (Ni/Zeo), Co3O4/zeolite (Co/Zeo), and (NiO + Co3O4)/zeolite (NiCo/Zeo) as catalysts. zeolite was synthesized by thermal chemical treatment natural clay, obtaining A sodalite mixture. Catalytic activity evaluated function of reaction temperature (250,...
Experiments of propane and propene steam reforming have been performed over a Pd–Cu/c-Al2O3 catalyst and over a Ni/NiAl2O4 catalyst. Over the palladium-based catalyst, the steam reforming of propene is faster and more selective than steam reforming of propane. Over the Pd catalyst, the steam reforming of propane is likely inhibited by site poisoning. In contrast, over Ni-based catalyst the refo...
Abstract Nickel modified strontium hydroxyapatite (Ni/Sr-HAP) supported catalysts are studied in selective methanation of CO/CO 2 . In this work, a new type nano rod-shaped hydroxyapatite-based with two different sizes and aspect ratios were prepared by sol–gel method next step, Ni precursor was wet impregnated i.e., denoted as Ni/Sr-HAP Ni/Sr-HAP(F127). The catalytic tests performed CO reactio...
Developing cost-effective, active, and durable electrocatalysts is one of the most important issues for the commercialization of fuel cells. Ultrathin Pt-Mo-Ni nanowires (NWs) with a diameter of ~2.5 nm and lengths of up to several micrometers were synthesized via a H2-assisted solution route (HASR). This catalyst was designed on the basis of the following three points: (i) ultrathin NWs with h...
A series of neutral Ni(II)-salicylaldiminato complexes substituted with perfluorooctyl- and trifluoromethyl groups, [Ni{kappa(2)-N,O-6-C(H)==NAr-2,4-R'(2)C(6)H(2)O}(Me)(pyridine)] (6 a: Ar=2,6-{4-(F(17)C(8))C(6)H(4)}(2)C(6)H(3), R'=I; 6 b: Ar=2,6-{4-(F(3)C)C(6)H(4)}(2)C(6)H(3), R'=I; 6 c: Ar=2,6-{3,5-(F(3)C)(2)C(6)H(3)}(2)C(6)H(3), R'=3,5-(F(3)C)(2)C(6)H(3); 6 d: Ar=2,6-{4-(F(17)C(8))C(6)H(4)}(...
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