Sonochemical engineering of highly efficient and robust Au nanoparticle-wrapped on Fe/ZrO2 nanorods and their controllable product selectivity in dimethyl oxalate hydrogenation

2020 ◽  
Vol 10 (4) ◽  
pp. 1125-1134 ◽  
Author(s):  
Mohamed Abbas ◽  
Juan Zhang ◽  
Jiangang Chen
Keyword(s):  
Catalytic Performance ◽  
Au Nanoparticle ◽  
Product Selectivity ◽  
Dimethyl Oxalate ◽  
Highly Efficient

A facile sonochemical approach is adopted for the synthesis of Fe/ZrO2 and Au decorated Fe/ZrO2 NRs catalysts and their outstanding stability and catalytic performance for the synthesis of EtOH and MG from DMO hydrogenation were reported.

Efficient Modulation of Catalytic Performance of Electrocatalytic Nitrogen Reduction with Transition Metal Anchored N/O-codoped Graphene by Coordination Engineering

2021 ◽  
Author(s):  
Xiaolin Wang ◽  
Li-Ming Yang
Keyword(s):  
Nitrogen Fixation ◽  
Transition Metal ◽  
High Throughput ◽  
First Principles ◽  
High Throughput Screening ◽  
Catalytic Performance ◽  
Nitrogen Reduction ◽  
Highly Efficient ◽  
First Time

We for the first time report the discovery of a series of highly efficient electrocatalysts, i.e., transition metal anchored N/O-codoped graphene, for nitrogen fixation via high-throughput screening combined with first-principles...

Shape- and size-controlled synthesis of Cu nanoparticles wrapped on RGO nanosheet catalyst and their outstanding stability and catalytic performance in the hydrogenation reaction of dimethyl oxalate

2018 ◽  
Vol 6 (39) ◽  
pp. 19133-19142 ◽  
Author(s):  
Mohamed Abbas ◽  
Zheng Chen ◽  
Jiangang Chen
Keyword(s):  
Catalytic Performance ◽  
Hydrogenation Reaction ◽  
Controlled Synthesis ◽  
Cu Nanoparticles ◽  
Dimethyl Oxalate ◽  
Size Controlled ◽  
Shape And Size

A novel sonochemical approach was developed for the synthesis of morphology-controlled Cu NPs wrapped on RGO NSs catalysts and their superior stability and catalytic performance in dimethyl oxalate hydrogenation reaction.

Assessing the formation of cobalt carbide and its catalytic performance under realistic reaction conditions and tuning product selectivity in a cobalt-based FTS reaction

2019 ◽  
Vol 9 (12) ◽  
pp. 3238-3258 ◽  
Author(s):  
Qiang Lin ◽  
Bing Liu ◽  
Feng Jiang ◽  
Xuejin Fang ◽  
Yuebing Xu ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Product Selectivity ◽  
Reaction Conditions ◽  
Catalytic Behavior ◽  
Cobalt Carbide

The formation of cobalt carbide (Co2C) and its catalytic behavior were systematically investigated using realistic reaction conditions.

One-Step Synthesis of Rod-Shaped NiFe-MOF as a Highly Efficient Oxygen Evolution Catalyst

NANO ◽  
2019 ◽  
Vol 14 (08) ◽  
pp. 1950101 ◽  
Author(s):  
Dandan Zhang ◽  
Renxing Huang ◽  
Huaming Xie ◽  
Xingyong Liu ◽  
Ying Lei ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Electrochemical Techniques ◽  
Nitrogen Adsorption ◽  
Catalytic Performance ◽  
Highly Efficient ◽  
Transmission Electron

Development of low-cost, highly active catalyst for efficient oxygen evolution reaction based on earth-abundant metals is still a great challenge. Here, we report that a rod-like bimetallic NiFe metal-organic framework (NiFe-MOF) can directly act as a highly efficient oxygen evolution reaction (OER) catalyst synthesized by a convenient-to-operate hydrothermal method. The rod-like NiFe-MOF can derive 10[Formula: see text]mA[Formula: see text]cm[Formula: see text] with a low overpotential of only 26[Formula: see text]mV, and its Tafel slope is 40.82[Formula: see text]mV[Formula: see text]dec[Formula: see text], which is superior to that of monometallic Ni-MOF or Fe-MOF, and even can be comparable to that of RuO2. To identify the origin of enhancing OER activity, we resorted to X-ray diffraction, scanning electron microscope, transmission electron microscope, high resolution transmission electron microscopy image and nitrogen adsorption–desorption techniques and various electrochemical techniques to probe it gingerly. The results indicate that its high electrochemically active area and the synergistic effect of bimetallic node could be responsible for the surprisingly high catalytic performance of the NiFe-MOF. These results suggest that this kind of bimetallic MOF (NiFe-MOF) could be a promising electrocatalyst for oxygen evolution reaction.

scholarly journals The Effect of Tourmaline on SCR Denitrification Activity of MnOx/TiO2 at Low Temperature

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1020
Author(s):  
Yizhe Helian ◽  
Suping Cui ◽  
Xiaoyu Ma
Keyword(s):  
Low Temperature ◽  
Catalytic Reduction ◽  
Catalytic Performance ◽  
Scr Catalyst ◽  
Highly Efficient ◽  
Nh3 Scr ◽  
Catalytic Material ◽  
Acidic Sites ◽  
Denitrification Activity ◽  
The Stability

Selective catalytic reduction (SCR) technology is the most widely used flue gas denitration technology at present. The stability of a catalyst is the main factor limiting the development of this technology. In this study, an environmentally friendly and highly efficient NH3-SCR catalyst was prepared by coprecipitation method from acidolysis residue of industrial waste and tourmaline. We found that the addition of tourmaline has an important impact on the denitration activity of the catalytic material. The NOx conversion exceeded 97% at 200 °C with the dosage of 10% tourmaline, which is about 7% higher than that without doping. The improvement of catalytic performance was mostly attributed to the permanent electrodes of tourmaline, which effectively promotes the dispersion of MnOx/TiO2 catalytic materials, increases the number of acidic sites and changes the valence distribution of manganese ions in products, which speeds up the diffusion of protons and ions, resulting in the acceleration of redox reaction. These as-developed tourmaline-modified MnOx/TiO2 materials have been demonstrated to be promising as a new type of highly efficient low-temperature NH3-SCR catalyst.

A hybrid composite of hydroxyapatite and Ca–Al layered double hydroxide supported Au nanoparticles for highly efficient base-free aerobic oxidation of glucose

2019 ◽  
Vol 48 (25) ◽  
pp. 9161-9172 ◽  
Author(s):  
Yunfeng Zhuge ◽  
Guoli Fan ◽  
Yanjun Lin ◽  
Lan Yang ◽  
Feng Li
Keyword(s):  
Layered Double Hydroxide ◽  
Hybrid Composite ◽  
Au Nanoparticles ◽  
Aerobic Oxidation ◽  
Catalytic Performance ◽  
Highly Efficient ◽  
Double Hydroxide ◽  
Oxidation Of Glucose

A novel hybrid composite of hydroxyapatite/Ca–Al layered double hydroxide supported Au nanoparticles exhibited robust catalytic performance in base-free aerobic oxidation of glucose.

scholarly journals Pd(CH3CN)2Cl2/Pipecolinic Acid as a Highly Efficient Catalytic System for Suzuki-Miyaura Cross-coupling Reaction of Bromoaryl Carboxylic Acids in Water

Catalysts ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 86 ◽  
Author(s):  
Xiaogang Li ◽  
Wenbin Zhang ◽  
Leiqing Fu ◽  
Mengping Guo
Keyword(s):  
Catalytic System ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Catalytic Performance ◽  
High Turnover ◽  
Mild Conditions ◽  
Highly Efficient ◽  
Cross Coupling Reaction ◽  
Pipecolinic Acid ◽  
Excellent Catalytic Performance

In this study, a convenient and highly efficient catalytic system for the Suzuki-Miyaura coupling reaction was investigated under mild conditions. A combination of Pd(CH3CN)2Cl2 and pipecolinic acid showed excellent catalytic performance and afforded high turnover numbers; turnover numbers were up to 4.9 × 105 for the coupling reaction of 4-bromobenzoic acid and tetraphenylboron sodium. The catalytic system was also effective for the indexes of 4-bromobenzoic acid, and high turnover numbers were obtained.

Au-nanoparticle-supported ZnO as highly efficient photocatalyst for H2O2 production

2020 ◽  
Vol 134 ◽  
pp. 105860 ◽  
Author(s):  
Xianguang Meng ◽  
Peixiao Zong ◽  
Liang Wang ◽  
Fan Yang ◽  
Weishu Hou ◽  
...  
Keyword(s):  
Au Nanoparticle ◽  
H2o2 Production ◽  
Highly Efficient
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