نتایج جستجو برای: tin ii

تعداد نتایج: 595600  

2013
Marvin Blum

Fur pi-riodit input u(l.). a liTu r i pi i si nt all on L (t) foi t lit clipptr is obtaint-d such tliat llu output \(t) = *(t) u(l). Th» Fourier LOef f ic ii-nt s oi y(t) are obtaimd in Ltrms ol tin Foui i t r coefficients of both e (t ) and u(t). Fei light > lipping, tin Fournr coef f ici ents of y (t ) equa 1 the Feurii i ei t I f ii i eiil s ol u(t ) plus j .s ma 1 1 correct ion fac tor of t...

Journal: :Journal of polymer science 2021

The catalytic potential of tin(II)acetate, tin(IV)acetate, dibutyltin-bis-acetate and dioctyl tin-bis-acetate was compared based on polymerizations L-lactide conducted in bulk at 160 or 130°C. With SnAc2 low-Lac/Cat ratios (15/1–50/1) were studied linear chains having one acetate carboxyl end group almost free cyclics obtained. Higher monomer/catalyst lower temperatures favored formation cycles...

Journal: :Science China. Materials 2021

Tin perovskite solar cells (TPSCs) are promising for lead-free (PSCs) and have led to extensive research; however, the poor crystallinity chemical stability of tin perovskites two issues that prevent stable TPSCs. In this study, we outline a new process addresses these by using tin(II) acetate (Sn(Ac)2) in place conventional SnF2 precursor additive. Compared with SnF2, Sn(Ac)2 improves fewer de...

Journal: :Nanoscale 2015
Yanjun Zhang Li Jiang Chunru Wang

A porous Sn@C nanocomposite was prepared via a facile hydrothermal method combined with a simple post-calcination process, using stannous octoate as the Sn source and glucose as the C source. The as-prepared Sn@C nanocomposite exhibited excellent electrochemical behavior with a high reversible capacity, long cycle life and good rate capability when used as an anode material for lithium ion batt...

Nanoparticles are widely used in different applications such as cancer cell treatment and antibacterial agents. SnO2 nanoparticles were synthesized successfully by hydrothermal method and subsequent calcination using Tin (II) chloride- dihydrate, Sodium hydroxide, in presence of Hexadecyltrimethylammoniumn bromide (CTAB) as Surfactant. These nanoparticles were characterized by using Fourier tra...

Nanoparticles are widely used in different applications such as cancer cell treatment and antibacterial agents. SnO2 nanoparticles were synthesized successfully by hydrothermal method and subsequent calcination using Tin (II) chloride- dihydrate, Sodium hydroxide, in presence of Hexadecyltrimethylammoniumn bromide (CTAB) as Surfactant. These nanoparticles were characterized by using Fourier tra...

ژورنال: :فرآیندهای نوین در مهندسی مواد 0
حسین شفیعی مربی، عضو هیئت علمی، دانشکده مهندسی مواد ، موسسه آموزشی عالی غیر انتفاعی صنعتی فولاد، فولاد شهر، اصفهان حسن شفیعی مربی، عضو هیئت علمی، دانشکده مهندسی مواد ، موسسه آموزشی عالی غیر انتفاعی صنعتی فولاد، فولاد شهر، اصفهان علی شفیعی دانشیار، عضو هیئت علمی، دانشکده مهندسی مواد ، موسسه آموزشی عالی غیر انتفاعی صنعتی فولاد، فولاد شهر، اصفهان

در میان پوشش های سخت، پوشش نیترید تیتانیوم (tin) وکربونیترید تیتانیوم (ticn) به علت برخوداری از سختی بالا، مقاومت به خوردگی خوب و ضریب اصطکاک کم توانسته اند تا بیش از ده برابر باعث افزایش طول عمر یک ابزار گردند. اعمال این دو پوشش بر روی زیر لایه های مختلف می تواند توسط فرآیند های مختلفی صورت گیرد. انتخاب نوع فرایند پوشش دهی می تواند تا حد زیادی بر ساختار، خواص مکانیکی و رفتار تریبولوژیکی این پو...

Journal: :Dalton transactions 2017
Yu-Liang Shan Bi-Xiang Leong Hong-Wei Xi Rakesh Ganguly Yongxin Li Kok Hwa Lim Cheuk-Wai So

The coordination chemistry of an amidinato silylene and germylene toward group 14 element(ii) halides is described. The reaction of the amidinato silicon(ii) amide [LSiN(SiMe3)2] (1, L = PhC(NtBu)2) with SnCl2 and PbBr2 afforded the amidinato silylene-dichlorostannylene and -dibromoplumbylene adducts [L{(Me3Si)2N}SiEX2] (E = Sn, X = Cl (2); E = Pb, X = Br (3)), respectively, in which there is a...

2016
T. Q. C. Noakes C. Adelmann M. Popovici H. Tielens T. Conard S. de Gendt S. van Elshocht

Medium energy ion scattering (MEIS) using, typically, 100 200 keV H or He ions derives it ability to characterize nanolayers from the fact that the energy after backscattering depends i) on the elastic energy loss suffered in a single collision with a target atom and ii) on the inelastic energy losses on its incoming and outgoing trajectories. From the former the mass of the atom can be determi...

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