scholarly journals Monodisperse anatase titania microspheres with high-thermal stability and large pore size (∼80 nm) as efficient photocatalysts

2017 ◽  
Vol 5 (7) ◽  
pp. 3645-3654 ◽  
Author(s):  
Lu Cao ◽  
Dehong Chen ◽  
Wu-Qiang Wu ◽  
Jeannie Z. Y. Tan ◽  
Rachel A. Caruso
Keyword(s):  
Thermal Stability ◽  
Pore Size ◽  
Uv Light ◽  
High Thermal Stability ◽  
Crystal Phase ◽  
Large Pore ◽  
Anatase Titania ◽  
Titania Microspheres ◽  
Large Pore Size

Anatase microspheres maintain the crystal phase after heating at temperatures > 800 °C and are photocatalytically active under UV-light.

Large Pore Size Nanoporous Materials from the Self-Assembly of Asymmetric Bottlebrush Block Copolymers

Nano Letters ◽  
2011 ◽  
Vol 11 (3) ◽  
pp. 998-1001 ◽  
Author(s):  
Justin Bolton ◽  
Travis S. Bailey ◽  
Javid Rzayev
Keyword(s):  
Block Copolymers ◽  
Pore Size ◽  
Self Assembly ◽  
Nanoporous Materials ◽  
The Self ◽  
Large Pore ◽  
Large Pore Size

Gradient porosity and large pore size NiTi shape memory alloys

2007 ◽  
Vol 57 (11) ◽  
pp. 1020-1023 ◽  
Author(s):  
Y.P. Zhang ◽  
D.S. Li ◽  
X.P. Zhang
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Pore Size ◽  
Large Pore ◽  
Niti Shape Memory Alloys ◽  
Large Pore Size

scholarly journals SBA-15 with Crystalline Walls Produced via Thermal Treatment with the Alkali and Alkali Earth Metal Ions

Materials ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5270
Author(s):  
Sung Soo Park ◽  
Sang-Wook Chu ◽  
Liyi Shi ◽  
Shuai Yuan ◽  
Chang-Sik Ha
Keyword(s):  
Metal Ions ◽  
Pore Size ◽  
Metal Ion ◽  
Pore Diameter ◽  
Earth Metal ◽  
Silica Matrix ◽  
Alkali Earth Metal ◽  
Alkali Earth ◽  
Large Pore ◽  
Large Pore Size

Crystalline walled SBA-15 with large pore size were prepared using alkali and alkali earth metal ions (Na+, Li+, K+ and Ca2+). For this work, the ratios of alkali metal ions (Si/metal ion) ranged from 2.1 to 80, while the temperatures tested ranged from 500 to 700 °C. The SBA-15 prepared with Si/Na+ ratios ranging from 2.1 to 40 at 700 °C exhibited both cristobalite and quartz SiO2 structures in pore walls. When the Na+ amount increased (i.e., Si/Na increased from 80 to 40), the pore size was increased remarkably but the surface area and pore volume of the metal ion-based SBA-15 were decreased. When the SBA-15 prepared with Li+, K+ and Ca2+ ions (Si/metal ion = 40) was thermally treated at 700 °C, the crystalline SiO2 of quartz structure with large pore diameter (i.e., 802.5 Å) was observed for Ca+2 ion-based SBA-15, while no crystalline SiO2 structures were observed in pore walls for both the K+ and Li+ ions treated SBA-15. The crystalline SiO2 structures may be formed by the rearrangement of silica matrix when alkali or alkali earth metal ions are inserted into silica matrix at elevated temperature.

Selective dealkylation of alkyl polycyclic aromatic hydrocarbons towards innovative upgrading process of practical heavy oil

2021 ◽  
Author(s):  
Fumiya Nakano ◽  
Tomohide Goma ◽  
Satoshi Suganuma ◽  
Etsushi Tsuji ◽  
Naonobu Katada
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Pore Size ◽  
Aromatic Hydrocarbons ◽  
Heavy Oil ◽  
Acid Sites ◽  
Polycyclic Aromatics ◽  
Large Pore ◽  
Polycyclic Aromatic ◽  
Long Chain ◽  
Large Pore Size

A silica-monolayer loaded on alumina with weak Brønsted acid sites and large pore size can selectively dealkylate alkyl polycyclic aromatics to long-chain alkanes and polycyclic aromatics for production of chemicals and fuel.

Highly Ordered Mesoporous Tungsten Oxides with a Large Pore Size and Crystalline Framework for H2S Sensing

2014 ◽  
Vol 53 (34) ◽  
pp. 9035-9040 ◽  
Author(s):  
Yuhui Li ◽  
Wei Luo ◽  
Nan Qin ◽  
Junping Dong ◽  
Jing Wei ◽  
...  
Keyword(s):  
Pore Size ◽  
Tungsten Oxides ◽  
Large Pore ◽  
Ordered Mesoporous ◽  
Large Pore Size

Composite melt-blown nonwoven fabrics with large pore size as Li-ion battery separator

2016 ◽  
Vol 41 (1) ◽  
pp. 324-330 ◽  
Author(s):  
Hong Wang ◽  
Yao Zhang ◽  
Huipu Gao ◽  
Xiangyu Jin ◽  
Xiaohua Xie
Keyword(s):  
Pore Size ◽  
Li Ion Battery ◽  
Nonwoven Fabrics ◽  
Battery Separator ◽  
Large Pore ◽  
Li Ion ◽  
Large Pore Size ◽  
Melt Blown Nonwoven

Highly Ordered Mesoporous Tungsten Oxides with a Large Pore Size and Crystalline Framework for H2S Sensing

2014 ◽  
Vol 126 (34) ◽  
pp. 9181-9186 ◽  
Author(s):  
Yuhui Li ◽  
Wei Luo ◽  
Nan Qin ◽  
Junping Dong ◽  
Jing Wei ◽  
...  
Keyword(s):  
Pore Size ◽  
Tungsten Oxides ◽  
Large Pore ◽  
Ordered Mesoporous ◽  
Large Pore Size
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