نتایج جستجو برای: catalytic graphitization

تعداد نتایج: 79599  

Journal: :Chemical communications 2010
Shanshan Feng Zhiyu Ren Yuanlong Wei Baojiang Jiang Yang Liu Lingyi Zhang Weibing Zhang Honggang Fu

Hollow magnetic graphitic carbon microspheres (HMGSs) with/without a TiO(2) nanoparticle layer on their surfaces are designed and synthesized by combining the bubble-template method, assembly of beta-cyclodextrin and Fe(3)O(4) stabilized by oleic acid and ammonia, and consequent graphitization reaction. HMGSs have potential in adsorption, enrichment, magnetic-assisted separation and drug delivery.

Journal: :Advanced materials 2015
Yu-Zhen Chen Chengming Wang Zhen-Yu Wu Yujie Xiong Qiang Xu Shu-Hong Yu Hai-Long Jiang

Bimetallic metal-organic frameworks are rationally synthesized as templates and employed for porous carbons with retained morphology, high graphitization degree, hierarchical porosity, high surface area, CoNx moiety and uniform N/Co dopant by pyrolysis. The optimized carbon with additional phosphorus dopant exhibits excellent electrocatalytic performance for the oxygen reduction reaction, which...

A novel sulfur nanocomposite was fabricated based on graphitic mesoporous carbon.The graphitic mesoporous carbon was synthesized using sucrose as carbon precursor, nano CaCO3 as a hard template and nickel nitrate as graphitization catalyst. The structural properties of the prepared material were characterized using powder X-Ray Diffraction (XRD), N2-adsorption/de...

2015
Long Chen Tuo Ji Liwen Mu Yijun Shi Logan Brisbin Zhanhu Guo Mohammel A. Khan David P. Young Jiahua Zhu

Mesoporous carbon with embedded iron carbide nanoparticles was successfully synthesized via a facile impregnation–carbonization method. A green biomass resource, cotton fabric, was used as a carbon precursor and an iron precursor was implanted to create mesopores through a catalytic graphitization reaction. The pore structure of the nanocomposites can be tuned by adjusting the iron precursor lo...

Journal: :Nanoscale 2015
Xianliang Wang Qing Li Hengyu Pan Ye Lin Yujie Ke Haiyang Sheng Mark T Swihart Gang Wu

We demonstrate a new strategy for tuning the size of large-diameter and few-walled nitrogen-doped carbon nanotubes (N-CNTs) from 50 to 150 nm by varying the transition metal (TM = Fe, Co, Ni or Mn) used to catalyze graphitization of dicyandiamide. Fe yielded the largest tubes, followed by Co and Ni, while Mn produced a clot-like carbon morphology. We show that morphology is correlated with elec...

Journal: :Materials advances 2021

Laser-induced graphitization leads to screen printed highly oriented pyrolytic graphite electrodes.

Journal: :Journal of the Society of Materials Science, Japan 1968

Journal: :Transactions of the Japan Institute of Metals 1986

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