Pd/meso-CoO derived from in situ reduction of the one-step synthesized Pd/meso-Co3O4: high-performance catalysts for benzene combustion

2019 ◽  
Vol 43 (31) ◽  
pp. 12358-12368 ◽  
Author(s):  
Xingtian Zhao ◽  
Ran Zhang ◽  
Yuxi Liu ◽  
Jiguang Deng ◽  
Peng Xu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
High Performance ◽  
Oxygen Activation ◽  
In Situ Reduction ◽  
Templating Method ◽  
One Step ◽  
The One

The 0.93Pd/meso-CoO is prepared via in situ reduction of 0.85Pd/meso-Co3O4 derived from KIT-6-templating method. The excellent catalytic activity of 0.93Pd/meso-CoO is related to the formed Pd0 species and good oxygen activation ability.

The interlocked in situ fabrication of graphene@prussian blue nanocomposite as high-performance supercapacitor

2018 ◽  
Vol 47 (37) ◽  
pp. 13126-13134 ◽  
Author(s):  
Shi-Cheng Wang ◽  
Minli Gu ◽  
Luqing Pan ◽  
Junfeng Xu ◽  
Lei Han ◽  
...  
Keyword(s):  
Prussian Blue ◽  
High Performance ◽  
Great Promise ◽  
High Quality ◽  
In Situ Fabrication ◽  
Excellent Electrochemical Performance ◽  
One Step ◽  
The One ◽  
Method Show

High-quality graphene@prussian blue (G@PB) nanocomposite sheets fabricated via the one-step in situ hydrothermal method show great promise for energy-storage hybrid electrodes with excellent electrochemical performance.

scholarly journals Computational and experimental investigations of one-step conversion of poly(carbonate)s into value-added poly(aryl ether sulfone)s

2016 ◽  
Vol 113 (28) ◽  
pp. 7722-7726 ◽  
Author(s):  
Gavin O. Jones ◽  
Alexander Yuen ◽  
Rudy J. Wojtecki ◽  
James L. Hedrick ◽  
Jeannette M. García
Keyword(s):  
High Performance ◽  
Density Functional ◽  
Value Added ◽  
Single Step ◽  
Nucleophilic Attack ◽  
Experimental Investigations ◽  
Aryl Ether ◽  
One Step ◽  
Poly Carbonate

It is estimated that ∼2.7 million tons poly(carbonate)s (PCs) are produced annually worldwide. In 2008, retailers pulled products from store shelves after reports of bisphenol A (BPA) leaching from baby bottles, reusable drink bottles, and other retail products. Since PCs are not typically recycled, a need for the repurposing of the PC waste has arisen. We report the one-step synthesis of poly(aryl ether sulfone)s (PSUs) from the depolymerization of PCs and in situ polycondensation with bis(aryl fluorides) in the presence of carbonate salts. PSUs are high-performance engineering thermoplastics that are commonly used for reverse osmosis and water purification membranes, medical equipment, as well as high temperature applications. PSUs generated through this cascade approach were isolated in high purity and yield with the expected thermal properties and represent a procedure for direct conversion of one class of polymer to another in a single step. Computational investigations performed with density functional theory predict that the carbonate salt plays two important catalytic roles in this reaction: it decomposes the PCs by nucleophilic attack, and in the subsequent polyether formation process, it promotes the reaction of phenolate dimers formed in situ with the aryl fluorides present. We envision repurposing poly(BPA carbonate) for the production of value-added polymers.

In Situ One-Step Synthesis of Hierarchical Nitrogen-Doped Porous Carbon for High-Performance Supercapacitors

2014 ◽  
Vol 6 (10) ◽  
pp. 7214-7222 ◽  
Author(s):  
Ju-Won Jeon ◽  
Ronish Sharma ◽  
Praveen Meduri ◽  
Bruce W. Arey ◽  
Herbert T. Schaef ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Nitrogen Doped ◽  
One Step

One-Step In Situ Growth of Iron-Nickel Sulfide Nanosheets on FeNi Alloy Foils: High-Performance and Self-Supported Electrodes for Water Oxidation

Small ◽  
2017 ◽  
Vol 13 (18) ◽  
pp. 1604161 ◽  
Author(s):  
Cheng-Zong Yuan ◽  
Zhong-Ti Sun ◽  
Yi-Fan Jiang ◽  
Zheng-Kun Yang ◽  
Nan Jiang ◽  
...  
Keyword(s):  
Water Oxidation ◽  
High Performance ◽  
Nickel Sulfide ◽  
In Situ Growth ◽  
Iron Nickel ◽  
One Step ◽  
Feni Alloy

scholarly journals Heterogeneization of alpha diimines nickel catalysts for the polymerization of ethylene and methylmethacrylate

e-Polymers ◽  
2010 ◽  
Vol 10 (1) ◽  
Author(s):  
Inês Matos ◽  
Auguste Fernandes ◽  
Rita Catalão ◽  
Ana M. Botelho do Rego ◽  
José R. Ascenso ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Metal Cation ◽  
Organometallic Compound ◽  
Heterogeneous Catalysts ◽  
Active Catalyst ◽  
Organic Ligand ◽  
Nickel Catalysts ◽  
Organometallic Complex ◽  
The One

AbstractIn this paper we present two different techniques for the preparation of single site heterogeneous catalyst. The first method consists in the impregnation of a solution of the organometallic compound in MCM41. The second method intends to establish the in situ synthesis of the complex within the solid’s pores by the reaction of the organic ligand with the metal cation previously introduced in the support. The direct deposition of the organometallic complex in the support resulted in an active catalyst which gives polyethylene with the same microstructure as the one obtained with the related homogeneous systems. The heterogeneous catalysts obtained by reaction of the ligand with the metal already present in the support showed a lower catalytic activity.

scholarly journals Analysis of the Influence of Fibers on the Formability of Metal Blanks in Manufacturing Processes for Fiber Metal Laminates

2019 ◽  
Vol 3 (1) ◽  
pp. 2 ◽  
Author(s):  
Thomas Mennecart ◽  
Soeren Gies ◽  
Noomane Ben Khalifa ◽  
A. Erman Tekkaya
Keyword(s):  
Contact Forces ◽  
Starting Time ◽  
Fiber Metal Laminate ◽  
Metal Sheets ◽  
Different Types ◽  
One Step ◽  
Fiber Metal ◽  
The One ◽  
Metal Blank

In the one-step manufacturing process for fiber metal laminate parts, the so-called in situ hybridization process, the fabrics are interacting with metal blanks. During deep drawing, the liquid matrix is injected between the metal sheets through the woven fiber layers. The metal blanks can be in contact with dry or with infiltrated fibers. The formability of the blanks is influenced by the variation of the starting time of injection. The reason for that is that, due to high contact forces, the fibers are able to deform the metal surface locally, so that movement and the strain of the blanks is inhibited. To investigate the influence of different fibers on the formability of metals, Nakazima tests are performed. In these tests, two metal blanks are formed with an interlayer of fibers. The results are compared with the formability of two blanks without any interlayer. It is shown that in with fibers between sheets, the formability decreases compared to the formability of two metal blanks without interlayers. Based on a simplified numerical model for different types of fibers, the interactions of the fibers with the metal blank are analyzed. It could be shown that the friction due to contact has more influence than the friction due to the form fit caused by the imprints.

In-situ regeneration mechanisms of hybrid catalysts in the one-step synthesis of dimethyl ether from syngas

2007 ◽  
Vol 115 (1-2) ◽  
pp. 23-26 ◽  
Author(s):  
Youshun Luan ◽  
Hengyong Xu ◽  
Chunying Yu ◽  
Wenzhao Li ◽  
Shoufu Hou
Keyword(s):  
Dimethyl Ether ◽  
Hybrid Catalysts ◽  
In Situ Regeneration ◽  
One Step ◽  
The One ◽  
Synthesis Of Dimethyl Ether
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