scholarly journals Recent Progress in Pd-Based Nanocatalysts for Selective Hydrogenation

ACS Omega ◽  
2021 ◽  
Author(s):  
Xiaojing Zhao ◽  
Yandong Chang ◽  
Wen-Jie Chen ◽  
Qingshi Wu ◽  
Xiaoyang Pan ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Recent Progress

Cobalt Catalysts Enable Selective Hydrogenation of CO2 toward Diverse Products: Recent Progress and Perspective

2021 ◽  
pp. 10486-10496
Author(s):  
Ting Fan ◽  
Hanlin Liu ◽  
Shengxian Shao ◽  
Yongji Gong ◽  
Guodong Li ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Recent Progress ◽  
Cobalt Catalysts ◽  
Hydrogenation Of Co2

Recent progress on selective hydrogenation of phenol toward cyclohexanone or cyclohexanol

2021 ◽  
Author(s):  
Guangxin Xue ◽  
Linlin Yin ◽  
Shengxian Shao ◽  
Guodong Li
Keyword(s):  
Selective Hydrogenation ◽  
Recent Progress ◽  
Raw Materials ◽  
Scale Up ◽  
Value Added ◽  
Active Components ◽  
Future Developments ◽  
Phenol Hydrogenation ◽  
Chemical Products ◽  
The Relationship

Abstract Phenol is considered as an important platform molecule for synthesizing value-added chemical intermediates and products. To date, various strategies for phenol transformation have been developed, and among them, selective hydrogenation of phenol toward cyclohexanone (K), cyclohexanol (A) or the mixture KA oil has been attracted great interest because they are both the key raw materials for the synthesis of nylon 6 and 66, as well as many other chemical products, including polyamides. However, until now it is still challengeable to realize the industrilized application of phenol hydrogenation toward KA oils. To better understand the selective hydrogenation of phenol and fabricate the enabled nanocatalysts, it is necessary to summarize the recent progress on selective hydrogenation of phenol with different catalysts. In this review, we first summarize the selective hydrogenation of phenol toward cyclohexanone or cyclohexanol by different nanocatalysts, and simultaneously discuss the relationship among the active components, type of supports and their performances. Then, the possible reaction mechanism of phenol hydrogenation with the typical metal nanocatalysts is summarized. Subsequently, the possible ways for scale-up hydrogenation of phenol are discussed. Finally, the potential challenges and future developments of metal nanocatalysts for the selective hydrogenation of phenol are proposed.

Electron-Mirror Microscopic Aspects of Ferroelectric Domains of BaTiO3 And Ca2Sr (C2H5CO2)6

1970 ◽  
Vol 28 ◽  
pp. 478-479
Author(s):  
Teruo Someya ◽  
Jinzo Kobayashi
Keyword(s):  
Surface Layer ◽  
Electric Fields ◽  
Quantitative Study ◽  
Recent Progress ◽  
Ferroelectric Domain ◽  
Resolving Power ◽  
Surface Pattern ◽  
Crystal Surfaces ◽  
One Dimensional ◽  
Ferroelectric Domains

Recent progress in the electron-mirror microscopy (EMM), e.g., an improvement of its resolving power together with an increase of the magnification makes it useful for investigating the ferroelectric domain physics. English has recently observed the domain texture in the surface layer of BaTiO3. The present authors ) have developed a theory by which one can evaluate small one-dimensional electric fields and/or topographic step heights in the crystal surfaces from their EMM pictures. This theory was applied to a quantitative study of the surface pattern of BaTiO3).

The Nature of Oxide Surfaces: Topographic and Electronic Structure

1993 ◽  
Vol 51 ◽  
pp. 966-967
Author(s):  
Dawn A. Bonnell ◽  
Yong Liang
Keyword(s):  
Transition Metal Oxides ◽  
Electronic Structures ◽  
Recent Progress ◽  
Spatial Localization ◽  
Level Of Detail ◽  
Scanning Tunneling ◽  
Oxide Surfaces ◽  
Tunneling Microscopy ◽  
Considerable Effort ◽  
Complete Understanding

Recent progress in the application of scanning tunneling microscopy (STM) and tunneling spectroscopy (STS) to oxide surfaces has allowed issues of image formation mechanism and spatial resolution limitations to be addressed. As the STM analyses of oxide surfaces continues, it is becoming clear that the geometric and electronic structures of these surfaces are intrinsically complex. Since STM requires conductivity, the oxides in question are transition metal oxides that accommodate aliovalent dopants or nonstoichiometry to produce mobile carriers. To date, considerable effort has been directed toward probing the structures and reactivities of ZnO polar and nonpolar surfaces, TiO2 (110) and (001) surfaces and the SrTiO3 (001) surface, with a view towards integrating these results with the vast amount of previous surface analysis (LEED and photoemission) to build a more complete understanding of these surfaces. However, the spatial localization of the STM/STS provides a level of detail that leads to conclusions somewhat different from those made earlier.

1997 Report Focuses on Recent Progress

1998 ◽  
Author(s):  
Keyword(s):  
Recent Progress

Recent Progress in Metal Spraying

1921 ◽  
Vol 3 (2supp) ◽  
pp. 182-182
Author(s):  
A. Slobod
Keyword(s):  
Recent Progress ◽  
Metal Spraying

Recent Progress in the Manufacture of Steel Castings

1894 ◽  
Vol 37 (949supp) ◽  
pp. 15170-15171
Keyword(s):  
Recent Progress ◽  
Steel Castings
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