Tailored synthesis of mesoporous platinum replicas using double gyroid mesoporous silica (KIT-6) with different pore diameters via vapor infiltration of a reducing agent

2010 ◽  
Vol 46 (34) ◽  
pp. 6365 ◽  
Author(s):  
Yoji Doi ◽  
Azusa Takai ◽  
Yasuhiro Sakamoto ◽  
Osamu Terasaki ◽  
Yusuke Yamauchi ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Reducing Agent ◽  
Double Gyroid ◽  
Mesoporous Platinum ◽  
Vapor Infiltration

scholarly journals Micelle-Assisted Strategy for the Direct Synthesis of Large-Sized Mesoporous Platinum Catalysts by Vapor Infiltration of a Reducing Agent

Nanomaterials ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 841 ◽  
Author(s):  
Yunqi Li ◽  
Yuwei Liu ◽  
Yusuke Yamauchi ◽  
Yusuf Kaneti ◽  
Saad Alsheri ◽  
...  
Keyword(s):  
Triblock Copolymer ◽  
Polymeric Micelles ◽  
Average Pore Size ◽  
Direct Synthesis ◽  
Reduction Process ◽  
Reducing Agent ◽  
Average Pore ◽  
Mesoporous Platinum ◽  
Pt Black ◽  
Vapor Infiltration

Stable polymeric micelles have been demonstrated to serve as suitable templates for creating mesoporous metals. Herein, we report the utilization of a core-shell-corona type triblock copolymer of poly(styrene-b-2-vinylpyridine-b-ethylene oxide) and H2PtCl6·H2O to synthesize large-sized mesoporous Pt particles. After formation of micelles with metal ions, the reduction process has been carried out by vapor infiltration of a reducing agent, 4-(Dimethylamino)benzaldehyde. Following the removal of the pore-directing agent under the optimized temperature, mesoporous Pt particles with an average pore size of 15 nm and surface area of 12.6 m2·g−1 are achieved. More importantly, the resulting mesoporous Pt particles exhibit superior electrocatalytic activity compared to commercially available Pt black.

Hydrogen-treated mesoporous WO3 as a reducing agent of CO2 to fuels (CH4 and CH3OH) with enhanced photothermal catalytic performance

2016 ◽  
Vol 4 (14) ◽  
pp. 5314-5322 ◽  
Author(s):  
Lichao Wang ◽  
Yu Wang ◽  
Yao Cheng ◽  
Zhifu Liu ◽  
Qiangsheng Guo ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Hydrothermal Method ◽  
Catalytic Performance ◽  
Reducing Agent ◽  
Silicotungstic Acid ◽  
Hard Template

A series of mesoporous WO3 catalysts were facilely synthesized by a hydrothermal method using mesoporous silica KIT-6 as a hard template and silicotungstic acid as a precursor.

Synthesis of Olive-Shaped Mesoporous Platinum Nanoparticles (MPNs) with a Hard-Templating Method Using Mesoporous Silica (SBA-15)

2012 ◽  
Vol 7 (4) ◽  
pp. 802-808 ◽  
Author(s):  
Hongjing Wang ◽  
Masataka Imura ◽  
Yoshihiro Nemoto ◽  
Sang-Eon Park ◽  
Yusuke Yamauchi
Keyword(s):  
Mesoporous Silica ◽  
Platinum Nanoparticles ◽  
Templating Method ◽  
Mesoporous Platinum ◽  
Hard Templating

Vapor infiltration techniques for spin-on mesoporous silica films

2006 ◽  
Vol 495 (1-2) ◽  
pp. 186-190 ◽  
Author(s):  
Shunsuke Tanaka ◽  
Hiromi Tada ◽  
Takanori Maruo ◽  
Norikazu Nishiyama ◽  
Yasuyuki Egashira ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Silica Films ◽  
Infiltration Techniques ◽  
Vapor Infiltration

Preparation of Ordered Mesoporous Au using Double Gyroid Mesoporous Silica KIT-6 via a Seed-Mediated Growth Process

2018 ◽  
Vol 13 (24) ◽  
pp. 3935-3941 ◽  
Author(s):  
Yuta Shimasaki ◽  
Masaki Kitahara ◽  
Miho Shoji ◽  
Atsushi Shimojima ◽  
Hiroaki Wada ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Growth Process ◽  
Ordered Mesoporous ◽  
Double Gyroid ◽  
Seed Mediated
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