Rare Earth Oxide Anchored Platinum Catalytic Site Coated Zeolitic Imidazolate Frameworks toward Enhancing Selective Hydrogenation

2020 ◽  
Vol 12 (6) ◽  
pp. 7198-7205 ◽  
Author(s):  
Liangmin Ning ◽  
Shengyun Liao ◽  
Caiqiao Dong ◽  
Mingtao Zhang ◽  
Wen Gu ◽  
...  
Keyword(s):  
Rare Earth ◽  
Selective Hydrogenation ◽  
Rare Earth Oxide ◽  
Catalytic Site ◽  
Zeolitic Imidazolate Frameworks

scholarly journals Synergistic catalysis of nano-Pd and nano rare-earth oxide/AC: complex nanostructured catalysts fabricated by a photochemical route for selective hydrogenation of phenol

RSC Advances ◽  
2017 ◽  
Vol 7 (86) ◽  
pp. 54779-54788 ◽  
Author(s):  
Yanji Zhang ◽  
Jicheng Zhou ◽  
Jiaqi Si
Keyword(s):  
Rare Earth ◽  
Chemical Industry ◽  
Selective Hydrogenation ◽  
Nanostructured Catalysts ◽  
Rare Earth Oxide ◽  
High Conversion ◽  
Synergistic Catalysis ◽  
Mild Conditions ◽  
Photochemical Route

Cyclohexanone is an important industrial intermediate in the chemical industry, but direct selective hydrogenation of phenol to cyclohexanone under mild conditions to achieve both high conversion and selectivity is a challenge.

scholarly journals Effect of rare earth oxide CeO2 on the anodic bonding performance of PEG-based MEMS encapsulation materials

2021 ◽  
Vol 13 (3) ◽  
pp. 168781402110077
Author(s):  
Chao Du ◽  
Cuirong Liu ◽  
Xu Yin ◽  
Haocheng Zhao
Keyword(s):  
Tensile Strength ◽  
Rare Earth ◽  
Rare Earth Oxide ◽  
Solid Polymer Electrolytes ◽  
Anodic Bonding ◽  
Solid Polymer ◽  
Bonding Layer ◽  
Scanning Calorimetry ◽  
Ion Migration ◽  
Bonding Performance

Herein, we synthesized a new polyethylene glycol (PEG)-based solid polymer electrolyte containing a rare earth oxide, CeO2, using mechanical metallurgy to prepare an encapsulation bonding material for MEMS. The effects of CeO2 content (0–15 wt.%) on the anodic bonding properties of the composites were investigated. Samples were analyzed and characterized by alternating current impedance spectroscopy, X-ray diffraction, scanning electron microscopy, differential scanning calorimetry, tensile strength tests, and anodic bonding experiments. CeO2 reduced the crystallinity of the material, promoted ion migration, increased the conductivity, increased the peak current of the bonding process, and increased the tensile strength. The maximum bonding efficiency and optimal bonding layer were obtained at 8 wt% CeO2. This study expands the applications of solid polymer electrolytes as encapsulation bonding materials.

scholarly journals On the resistance of rare earth oxide-doped YSZ to high temperature volcanic ash attack

2016 ◽  
Vol 307 ◽  
pp. 534-541 ◽  
Author(s):  
J. Xia ◽  
L. Yang ◽  
R.T. Wu ◽  
Y.C. Zhou ◽  
L. Zhang ◽  
...  
Keyword(s):  
Rare Earth ◽  
High Temperature ◽  
Volcanic Ash ◽  
Rare Earth Oxide

Wear resistance of hot-pressed Si3N4/SiC micro/nanocomposites sintered with rare-earth oxide additives

Wear ◽  
2010 ◽  
Vol 269 (11-12) ◽  
pp. 867-874 ◽  
Author(s):  
P. Tatarko ◽  
M. Kašiarová ◽  
J. Dusza ◽  
J. Morgiel ◽  
P. Šajgalík ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Rare Earth ◽  
Rare Earth Oxide

Solution-Processed Rare-Earth Oxide Thin Films for Alternative Gate Dielectric Application

2016 ◽  
Vol 8 (45) ◽  
pp. 31128-31135 ◽  
Author(s):  
Jiaqing Zhuang ◽  
Qi-Jun Sun ◽  
Ye Zhou ◽  
Su-Ting Han ◽  
Li Zhou ◽  
...  
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Gate Dielectric ◽  
Rare Earth Oxide ◽  
Oxide Thin Films ◽  
Solution Processed

Abrasive and Erosive Wear Performance of Rare Earth Oxide Doped Ni/WC Coatings

2013 ◽  
Vol 136 (1) ◽  
Author(s):  
Surajit Purkayastha ◽  
D. K. Dwivedi
Keyword(s):  
Rare Earth ◽  
Erosive Wear ◽  
Rare Earth Oxide ◽  
Wear Performance ◽  
Ceramic Phase ◽  
Enhanced Dissolution ◽  
Impact Angles ◽  
Rare Earth Doped ◽  
Microstructural Examination ◽  
Nickel Tungsten

The effect of CeO2 modification on flame sprayed nickel-tungsten carbide (WC) coatings was investigated. The modified coatings exhibited smaller grain sizes of the ceramic phase due to enhanced dissolution of the WC phase. The rare earth doped coatings, especially Ni-WC +0.9% wt. CeO2, showed superior abrasive wear resistance with respect to the unmodified coating mainly due to enhanced hardness. Coating modified with 0.6% wt. CeO2 demonstrated superior erosion resistance at both impact angles, 30 deg and 90 deg, respectively, primarily due to low porosity levels. Microstructural examination showed different wear mechanisms in conventional and doped coatings.

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