Active and Recyclable Gold Metal Nanoparticles Catalyst Supported on Nitrogen‐Doped Mesoporous Carbon for Chemoselective Hydrogenation of Cinnamaldehyde to Cinnamyl Alcohol

AbstractIn view of rich potassium resources and their working potential, potassium-ion batteries (PIBs) are deemed as next generation rechargeable batteries. Owing to carbon materials with the preponderance of durability and economic price, they are widely employed in PIBs anode materials. Currently, porosity design and heteroatom doping as efficacious improvement strategies have been applied to the structural design of carbon materials to improve their electrochemical performances. Herein, nitrogen-doped mesoporous carbon spheres (MCS) are synthesized by a facile hard template method. The MCS demonstrate larger interlayer spacing in a short range, high specific surface area, abundant mesoporous structures and active sites, enhancing K-ion migration and diffusion. Furthermore, we screen out the pyrolysis temperature of 900 °C and the pore diameter of 7 nm as optimized conditions for MCS to improve performances. In detail, the optimized MCS-7-900 electrode achieves high rate capacity (107.9 mAh g−1 at 5000 mA g−1) and stably brings about 3600 cycles at 1000 mA g−1. According to electrochemical kinetic analysis, the capacitive-controlled effects play dominant roles in total storage mechanism. Additionally, the full-cell equipped MCS-7-900 as anode is successfully constructed to evaluate the practicality of MCS.

Download Full-text

A template-directed bifunctional NiSx/nitrogen-doped mesoporous carbon electrocatalyst for rechargeable Zn–air batteries

Journal of Materials Chemistry A ◽

10.1039/c9ta06446j ◽

2019 ◽

Vol 7 (34) ◽

pp. 19889-19897 ◽

Cited By ~ 12

Author(s):

Kai Wan ◽

Jiangshui Luo ◽

Xuan Zhang ◽

Chen Zhou ◽

Jin Won Seo ◽

...

Keyword(s):

Mesoporous Carbon ◽

Nitrogen Doped ◽

Ordered Mesoporous

A highly ordered mesoporous NiSx/nitrogen-doped mesoporous carbon (NiSx/NMC) nanohybrid as a bifunctional oxygen electrocatalyst for rechargeable Zn–air batteries.

Download Full-text

Nitrogen-Doped Mesoporous Carbon Derived from Polyaniline

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.926-930.379 ◽

2014 ◽

Vol 926-930 ◽

pp. 379-382

Author(s):

De Yi Zhang ◽

Li Wen Zheng ◽

Long Yan Lei

Keyword(s):

Mesoporous Carbon ◽

Electronic Devices ◽

Ordered Mesoporous Carbon ◽

Additional Contribution ◽

Electrochemical Capacitance ◽

Supercapacitive Performance ◽

Nitrogen Doped ◽

Ordered Mesoporous ◽

Capacitance Performance ◽

A Current

In this paper, we demonstrate the successful fabrication of nitrogen doped ordered mesoporous carbon (PNOMC) materials using polyaniline as precursor. The synthesized PNOMC material exhibits enhanced supercapacitive performance due to the additional contribution from pseudo-capacitance originating from incorporation of nitrogen into the framework of carbon materials. Although the specific surface area of the material is not high (386.2 m2/g), the specific capacitance is as high as the 271 F/g at a current density of 1A/g. The fabrication of nitrogen-doped ordered mesoporous carbon with enhanced electrochemical capacitance performance provides a viable route to promote its applications in electronic devices.

Download Full-text

Improved cycling stability of lithium–sulfur batteries using a polypropylene-supported nitrogen-doped mesoporous carbon hybrid separator as polysulfide adsorbent

Journal of Power Sources ◽

10.1016/j.jpowsour.2015.11.018 ◽

2016 ◽

Vol 303 ◽

pp. 317-324 ◽

Cited By ~ 79

Author(s):

Juan Balach ◽

Tony Jaumann ◽

Markus Klose ◽

Steffen Oswald ◽

Jürgen Eckert ◽

...

Keyword(s):

Mesoporous Carbon ◽

Cycling Stability ◽

Nitrogen Doped ◽

Lithium Sulfur Batteries ◽

Lithium Sulfur

Download Full-text

Synthesis of nitrogen-doped mesoporous carbon nanosheets for oxygen reduction electrocatalytic activity enhancement in acid and alkaline media

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2018.11.096 ◽

2019 ◽

Vol 44 (9) ◽

pp. 4423-4431 ◽

Cited By ~ 7

Author(s):

Hui-yu Lei ◽

Jin-hua Piao ◽

Angeliki Brouzgou ◽

Elena Gorbova ◽

Panagiotis Tsiakaras ◽

...

Keyword(s):

Oxygen Reduction ◽

Electrocatalytic Activity ◽

Mesoporous Carbon ◽

Alkaline Media ◽

Carbon Nanosheets ◽

Nitrogen Doped ◽

Activity Enhancement

Download Full-text

Synthesis and Properties of Nitrogen-Doped Mesoporous Carbon Materials Obtained by Templating of SBA-15 with Melamine-Formaldehyde Resin

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.554-556.778 ◽

2012 ◽

Vol 554-556 ◽

pp. 778-782 ◽

Cited By ~ 1

Author(s):

Chao Liu ◽

Yong Qi Hu ◽

Yi Feng Yu ◽

Yue Zhang ◽

Yan Yan Wang ◽

...

Keyword(s):

Fourier Transform ◽

Mesoporous Carbon ◽

Carbon Materials ◽

Textural Properties ◽

Formaldehyde Resin ◽

Melamine Formaldehyde ◽

X Ray ◽

Nitrogen Doped ◽

Surface Areas ◽

Mesoporous Carbon Materials

Nitrogen-doped mesoporous carbon materials have been synthesized by using melamine-formaldehyde resin as carbon precursor and SBA-15 as a removable template. The structure of the materials was investigated by X-ray diffraction, BET speciﬁc surface area analysis, Fourier transform infrared spectroscopy, and thermogravimetric analysis. X-ray and BET studies conﬁrmed that a pore nanostructure is inherited from the silica templates. Fourier transform infrared spectroscopy analysis showed N atoms are strongly bonded in the carbon structure in heterocycles or nitrile functions. These mesoporous nitrogen-doped carbon materials exhibits textural properties with BET surface areas ranging between 400 and 600 m2/g and uniform pore size(3.9 nm). The mechanism of carbonization process is studied by thermogravimetric analysis. The ratio of melamine/formaldehyde plays an important role during the carbonization process for the surface areas and textural properties, and element analysis reveals that the nitrogen content of the mesoporous carbon materials is as high as 10wt%.

Download Full-text