نتایج جستجو برای: fe doped nanotube

تعداد نتایج: 140621  

Journal: :ACS applied materials & interfaces 2014
H Zanin P W May D J Fermin D Plana S M C Vieira W I Milne E J Corat

Nanostructuring boron-doped diamond (BDD) films increases their sensitivity and performance when used as electrodes in electrochemical environments. We have developed a method to produce such nanostructured, porous electrodes by depositing BDD thin film onto a densely packed "forest" of vertically aligned multiwalled carbon nanotubes (CNTs). The CNTs had previously been exposed to a suspension ...

In contemporary research, “Heterostructure” assemblies play an important role in energy conversion systems, wherein the composite assemblies facilitate faster charge carrier transport across the material interfaces. The improved/enhanced efficiency metrics in these systems (electro/photo-electrochemical processes/devices) is due to synergistic interaction and synchronized charge transport a...

Journal: :Nanoscale 2015
Minghan Xu Shusheng Xu Zhi Yang Mengjun Shu Guili He Da Huang Liling Zhang Li Li Daxiang Cui Yafei Zhang

The desired control of particle size, doping element composition, and surface structure of carbon dots (CDs) are vital for understanding the fluorescence mechanism and exploring their potential applications. Herein, nitrogen-doped CDs (N-doped CDs) have been synthesized with tartaric acid and various alkylol amines (monoethanolamine, biethanolamine and triethanolamine) under microwave irradiati...

2016
Teppo Noronen Sergei Firstov Evgeny Dianov Oleg G. Okhotnikov

We demonstrate the first 1.7 μm bismuth-doped fiber laser generating ultrashort pulses via passive mode-locking. Pulse operation has been achieved for both anomalous and normal dispersion of the laser cavity owing to broadband characteristics of carbon nanotube saturable absorber. The laser delivered 1.65 ps pulses in net anomalous dispersion regime. In normal dispersion regime, the laser deliv...

2016
Xiuting Li Hannah Hodson Christopher Batchelor-McAuley Lidong Shao Richard G. Compton

The oxidations of formate and methanol on nitrogen-doped carbon nanotubes decorated with palladium nanoparticles were studied at both the single-nanotube and ensemble levels. Significant voltammetric differences were seen. Pd oxide formation as a competitive reaction with formate or methanol oxidation is significantly inhibited at high overpotentials under the high mass transport conditions ass...

Journal: :Superconductor Science and Technology 2007

2017
Xiao-Qing Liang Xiao-Jiao Deng Sheng-Jie Lu Xiao-Ming Huang Ji-Jun Zhao Hong-Guang Xu Wei-Jun Zheng Xiao Cheng Zeng

We present a joint experimental and theoretical study on double iron atom doped germanium clusters, Fe2Gen −/0 (n = 3−12). The experimental photoelectron spectra of cluster anions are reasonably reproduced by theoretical simulations. The low-lying structures of the iron-doped semiconductor clusters are obtained by using an ab initio computation-based genetic-algorithm global optimization method...

Journal: :Catalysts 2023

Transition metal and heteroatom co-doped carbon nanomaterials (TM-H-C) are considered to be the most promising candidates replace expensive platinum-based catalysts for oxygen reduction reactions (ORR). Herein, we report a semi-closed molten salt-assisted one-step strategy fabricating N-P-Fe-tridoped porous nanotube (CNT) by using evaporation of ZnCl2 catalysis iron ions control heteroatoms dop...

2008
Iftikhar Ahmad Yimin Zhao Andrew Kennedy Yanqiu Zhu

Carbon nanotubes (CNTs) are probably the strongest material ever known with outstanding mechanical, electrical and physical properties [1, 2]. It is postulated that by transferring these fabulous properties as reinforcements in inorganic matrices, a new class of nanocomposite to meet the requirement of advanced applications will be generated. Al2O3 ceramics have been widely used for structural,...

Journal: :Molecules 2017
Ricardo S Silva Hanna D Mikhail Eder V Guimarães Elis R Gonçalves Nilo F Cano Noelio O Dantas

Iron-doped bismuth sulphide (Bi2-xFexS₃) nanocrystals have been successfully synthesized in a glass matrix using the fusion method. Transmission electron microscopy images and energy dispersive spectroscopy data clearly show that nanocrystals are formed with an average diameter of 7-9 nm, depending on the thermic treatment time, and contain Fe in their chemical composition. Magnetic force micro...

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