Efficient hydrogenation of aromatic aldehydes to corresponding benzyl alcohols over Ni–B/MIL-101

RSC Advances ◽  
2014 ◽  
Vol 4 (63) ◽  
pp. 33564-33568 ◽  
Author(s):  
Xiangjin Kong ◽  
Junhai Liu
Keyword(s):  
Liquid Phase ◽  
Amorphous Alloy ◽  
Aromatic Aldehydes ◽  
Impregnation Method ◽  
Benzyl Alcohols ◽  
Catalytic Activities ◽  
Chemoselective Hydrogenation ◽  
Alloy Particles ◽  
Simple Reduction

Ni–B amorphous alloy particles incorporated onto MIL-101 were prepared by a simple reduction impregnation method, and exhibited excellent catalytic activities for liquid-phase chemoselective hydrogenation of aromatic aldehydes to corresponding benzyl alcohols.

Metal-Assisted Plasma Etching of Silicon: A Liquid-Free Alternative to MACE

2018 ◽  
Author(s):  
Julia Sun ◽  
Benjamin Almquist
Keyword(s):  
Liquid Phase ◽  
Plasma Etching ◽  
Chemical Etching ◽  
Gold Films ◽  
Metallic Films ◽  
Au Catalyst ◽  
Feed Concentration ◽  
Catalytic Activities ◽  
Metal Assisted Chemical Etching ◽  
Complex Nanostructures

For decades, fabrication of semiconductor devices has utilized well-established etching techniques to create complex nanostructures in silicon. Of these, two of the most common are reactive ion etching in the gaseous phase and metal-assisted chemical etching (MACE) in the liquid phase. Though these two methods are highly established and characterized, there is a surprising scarcity of reports exploring the ability of metallic films to catalytically enhance the etching of silicon in dry plasmas via a MACE-like mechanism. Here, we discuss a <u>m</u>etal-<u>a</u>ssisted <u>p</u>lasma <u>e</u>tch (MAPE) performed using patterned gold films to catalyze the etching of silicon in an SF<sub>6</sub>/O<sub>2</sub> mixed plasma, selectively increasing the rate of etching by over 1000%. The degree of enhancement as a function of Au catalyst configuration and relative oxygen feed concentration is characterized, along with the catalytic activities of other common MACE metals including Ag, Pt, and Cu. Finally, methods of controlling the etch process are briefly explored to demonstrate the potential for use as a liquid-free fabrication strategy.

ChemInform Abstract: Highly Chemoselective Hydrogenation of Active Benzaldehydes to Benzyl Alcohols Catalyzed by Bimetallic Nanoparticles.

ChemInform ◽  
2016 ◽  
Vol 47 (12) ◽  
pp. no-no
Author(s):  
Chulong Liu ◽  
Hailin Bao ◽  
Dingsheng Wang ◽  
Xinyan Wang ◽  
Yadong Li ◽  
...  
Keyword(s):  
Bimetallic Nanoparticles ◽  
Benzyl Alcohols ◽  
Chemoselective Hydrogenation

Crystallization and structure of high boron content iron-boron ultrafine amorphous alloy particles

1996 ◽  
Vol 31 (3) ◽  
pp. 611-616 ◽  
Author(s):  
Z. Hu ◽  
Y. Fan ◽  
Y. Wu ◽  
Q. Yan ◽  
Y. Chen
Keyword(s):  
Amorphous Alloy ◽  
Boron Content ◽  
Alloy Particles ◽  
High Boron

scholarly journals Deposition of Metal Organic Framework Layers on Skeletal Cu Prepared from Cu-Ti Amorphous Alloy and Their Enhanced Catalytic Activities

2016 ◽  
Vol 45 (8) ◽  
pp. 976-978 ◽  
Author(s):  
Ai Nozaki ◽  
Yasutomo Tanihara ◽  
Yasutaka Kuwahara ◽  
Kohsuke Mori ◽  
Hiromi Yamashita
Keyword(s):  
Amorphous Alloy ◽  
Metal Organic Framework ◽  
Catalytic Activities ◽  
Metal Organic ◽  
Organic Framework

Formation of ultra-fine amorphous alloy particles by reduction in aqueous solution

Nature ◽  
1986 ◽  
Vol 322 (6080) ◽  
pp. 622-623 ◽  
Author(s):  
Jacques van Wonterghem ◽  
Steen Mørup ◽  
Christian J. W. Koch ◽  
Stuart W. Charles ◽  
Steven Wells
Keyword(s):  
Aqueous Solution ◽  
Amorphous Alloy ◽  
Alloy Particles

scholarly journals Low Temperature Chemoselective Hydrogenation of Aldehydes over a Magnetic Pd Catalyst

2019 ◽  
Vol 9 (9) ◽  
pp. 1792
Author(s):  
Liu ◽  
Wang ◽  
Gao ◽  
Wang ◽  
Cheng ◽  
...  
Keyword(s):  
Low Temperature ◽  
Room Temperature ◽  
Heterogeneous Catalysts ◽  
Aromatic Aldehydes ◽  
Pd Catalyst ◽  
Primary Alcohols ◽  
Mild Conditions ◽  
Excellent Yield ◽  
Chemoselective Hydrogenation ◽  
Supported Palladium

Chemoselective hydrogenation of aldehydes with heterogeneous catalysts under mild conditions is of great importance but remains a major challenge. Herein, an efficient strategy was developed for low temperature chemoselective hydrogenation of aldehydes with broad substrate scope over a magnetic material supported palladium catalyst (γ-Fe2O3@HAP-Pd). Aldehydes bearing various reducible functional groups readily underwent hydrogenation to give the corresponding primary alcohols with moderate to excellent yield at room temperature in aqueous solutions. The Hammett equation revealed that the hydrogenation of aromatic aldehydes proceeded via an anionic intermediate. Additionally, when the temperature increased to 70 °C, toluene was obtained by the deoxygenation of benzaldehyde in excellent yield. Furthermore, the γ-Fe2O3@HAP-Pd could be recycled up to six times without loss of activity and metal leaching.

Preparation of Pd–B/TiO2 amorphous alloy catalysts and their performance on liquid-phase hydrogenation of p-nitrophenol

2008 ◽  
Vol 138 (1-3) ◽  
pp. 517-522 ◽  
Author(s):  
Zhenye Ma ◽  
Lixiong Zhang ◽  
Rizhi Chen ◽  
Weihong Xing ◽  
Nanping Xu
Keyword(s):  
Liquid Phase ◽  
Amorphous Alloy ◽  
Liquid Phase Hydrogenation ◽  
Alloy Catalysts
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