Immobilized Precursor Particle Driven Growth of Centimeter-Sized MoTe2 Monolayer

2021 ◽  
Author(s):  
Liang Ma ◽  
Juntong Zhu ◽  
Wei Li ◽  
Rong Huang ◽  
Xiangyi Wang ◽  
...  
Keyword(s):  
Precursor Particle

Understanding alloy structure and composition in sinter-resistant AgPd@SiO2 encapsulated catalysts and their effect on catalytic properties

2017 ◽  
Vol 41 (23) ◽  
pp. 14652-14658 ◽  
Author(s):  
Sourik Mondal ◽  
Thattarathody Rajesh ◽  
Basab B. Dhar ◽  
Markus Snellman ◽  
Junjie Li ◽  
...  
Keyword(s):  
Particle Size ◽  
Alloy Composition ◽  
Catalytic Properties ◽  
Alloy Structure ◽  
Precursor Particle ◽  
Encapsulated Catalysts ◽  
Catalytic Performances

Effects of precursor particle size, extent of alloying and alloy composition on AgPd@SiO2 catalytic performances.

Effects of precursor particle size on the performance of LiNi0.5Co0.2Mn0.3O2 cathode material

2015 ◽  
Vol 41 (10) ◽  
pp. 15185-15192 ◽  
Author(s):  
Min Nie ◽  
Yun-Fei Xia ◽  
Zhen-Bo Wang ◽  
Fu-Da Yu ◽  
Yin Zhang ◽  
...  
Keyword(s):  
Particle Size ◽  
Cathode Material ◽  
Precursor Particle

Influence of precipitation conditions on precursor particle size distribution and activity of Cu/ZnO methanol synthesis catalyst

2014 ◽  
Vol 482 ◽  
pp. 237-244 ◽  
Author(s):  
Bahman Vasheghani Farahani ◽  
Farzaneh Hosseinpour Rajabi ◽  
Mohsen Bahmani ◽  
Marzieh Ghelichkhani ◽  
Saeed Sahebdelfar
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Methanol Synthesis ◽  
Precursor Particle ◽  
Methanol Synthesis Catalyst

Poly(Styrene CO Acrylonitrile) Polyols. Modulus Enhancing Polyols for Urethane Polymers

1972 ◽  
Vol 45 (5) ◽  
pp. 1467-1484 ◽  
Author(s):  
F. E. Critchfield ◽  
J. V. Koleske ◽  
D. C. Priest
Keyword(s):  
Electron Microscopy ◽  
Particle Size ◽  
Unique Feature ◽  
Dispersed Phase ◽  
Load Bearing ◽  
Precursor Particle ◽  
Vinyl Polymer ◽  
Poly Acrylonitrile ◽  
Excellent Stability

Abstract A novel class of polyols for polyurethane production was described in 19661. Their unique feature was the presence of an in situ polymerized vinyl polymer which markedly enchanes the modulus of the resultant polyurethane. The final product is a conventional polyol that contains a dispersion of the vinyl polymer. From among the numerous products investigated, a poly-(acrylonitrile) polyol was selected because of the excellent stability of the dispersion. Poly (acrylonitrile) polyols are opaque, cream-colored liquids with viscosities ranging from 1500 to 4500 cps, depending upon the nature of the polyol precursor. Particle size of the dispersed phase was reported to be between 0.25 and 0.5 micron as determined by electron microscopy. Poly (acrylonitrile) polyols have been used in slab-stock flexible foams as additives to conventional polyether polyols to improve load-bearing properties. More extensive utility has been identified in molding applications. Whitman described their use in producing integral skin urethane foams for uses such as automotive arm rests, horn buttons, mirror covers, etc.. Dunleavy discussed the use of polymer polyols in molded, microcellular urethane elastomers for automotive trim parts, particularly for "cosmetic" bumpers. More recently, Patten and Priest showed their utility in highly resilient automotive seating foam. In all of these applications the modulus enhancing characteristics of these polyols are particularly important.

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