Construction of a hollow structure in La0.9K0.1CoO3−δ nanofibers via grain size control by Sr substitution with an enhanced catalytic performance for soot removal

2019 ◽  
Vol 9 (18) ◽  
pp. 4938-4951 ◽  
Author(s):  
Fan Fang ◽  
Peng Zhao ◽  
Nengjie Feng ◽  
Chong Chen ◽  
Xue Li ◽  
...  
Keyword(s):  
Grain Size ◽  
Hollow Structure ◽  
Size Control ◽  
Catalytic Performance ◽  
Intrinsic Activity ◽  
Grain Size Control ◽  
Contact Efficiency

The hollow structure is formed by Sr2+ doping in La0.9K0.1CoO3−δ nanofibers for decreasing the grain size, which can improve the contact efficiency of soot–catalyst–gas as well as the intrinsic activity, responsible for the enhancement in activity.

Interfacial studies in Nb3Sn superconductors

1991 ◽  
Vol 49 ◽  
pp. 590-591
Author(s):  
Ernest L. Hall ◽  
Lee E. Rumaner ◽  
Mark G. Benz
Keyword(s):  
Grain Size ◽  
Grain Boundaries ◽  
Flux Pinning ◽  
Size Control ◽  
High Magnetic Fields ◽  
Type Ii ◽  
Reaction Interface ◽  
Liquid Diffusion ◽  
Type Ii Superconductor ◽  
Grain Size Control

The intermetallic compound Nb3Sn is a type-II superconductor of interest because it has high values of critical current density Jc in high magnetic fields. One method of forming this compound involves diffusion of Sn into Nb foil containing small amounts of Zr and O. In order to maintain high values of Jc, it is important to keep the grain size in the Nb3Sn as small as possible, since the grain boundaries act as flux-pinning sites. It has been known for many years that Zr and O were essential to grain size control in this process. In previous work, we have shown that (a) the Sn is transported to the Nb3Sn/Nb interface by liquid diffusion along grain boundaries; (b) the Zr and O form small ZrO2 particles in the Nb3Sn grains; and (c) many very small Nb3Sn grains nucleate from a single Nb grain at the reaction interface. In this paper we report the results of detailed studies of the Nb3Sn/Nb3Sn, Nb3Sn/Nb, and Nb3Sn/ZrO2 interfaces.

Grain size control of perovskite films based on β-alanine self-assembled monolayers surface treatment

2021 ◽  
pp. 138770
Author(s):  
Linlin Guan ◽  
Leiming Yu ◽  
Lijuan Wu ◽  
Shuyu Zhang ◽  
Yuting Lin ◽  
...  
Keyword(s):  
Grain Size ◽  
Surface Treatment ◽  
Size Control ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Grain Size Control ◽  
Self Assembled

scholarly journals Grain size control in polycrystalline colloidal solids

1995 ◽  
Vol 102 (12) ◽  
pp. 5082-5087 ◽  
Author(s):  
Thomas Palberg ◽  
Wolfgang Mönch ◽  
Jürgen Schwarz ◽  
Paul Leiderer
Keyword(s):  
Grain Size ◽  
Size Control ◽  
Grain Size Control

scholarly journals Grain size control of ZIF-8 membranes by seeding-free aqueous synthesis and their performances in propylene/propane separation

2017 ◽  
Vol 544 ◽  
pp. 306-311 ◽  
Author(s):  
Shunsuke Tanaka ◽  
Kenta Okubo ◽  
Koji Kida ◽  
Miki Sugita ◽  
Takahiko Takewaki
Keyword(s):  
Grain Size ◽  
Size Control ◽  
Aqueous Synthesis ◽  
Grain Size Control

scholarly journals Grain Size Control by Oxide Dispersion in Austenitic Stainless Steel

2003 ◽  
Vol 89 (5) ◽  
pp. 616-622 ◽  
Author(s):  
Koji TAKANO ◽  
Ryuji NAKAO ◽  
Shigeo FUKUMOTO ◽  
Toshihiro TSUCHIYAMA ◽  
Setsuo TAKAKI
Keyword(s):  
Grain Size ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Size Control ◽  
Oxide Dispersion ◽  
Grain Size Control

Semiconducting carbon nanotubes as crystal growth templates and grain bridges in perovskite solar cells

2019 ◽  
Vol 7 (21) ◽  
pp. 12987-12992 ◽  
Author(s):  
Seungju Seo ◽  
Il Jeon ◽  
Rong Xiang ◽  
Changsoo Lee ◽  
Hao Zhang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Grain Size ◽  
Solar Cells ◽  
Crystal Growth ◽  
Perovskite Solar Cells ◽  
Size Control ◽  
Grain Size Control

Grain size control and boundary passivation of perovskite films are the key to obtaining efficient perovskite solar cells.

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