The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In recent years, the oxygen reduction reaction (ORR) performance of N-doped carbon catalysts has made great progress and is now comparable to that of commercial Pt/C. However, the rich porous features of N-doped carbon catalysts give them a very low bulk density, which leads to problems in oxygen mass transfer due to water flooding when they are used as the cathode in fuel cells. Herein, a controllable...
Preparation of inks with proper rheology performance is the key for extrusion based 3D printing. In this work, extrusion based 3D printing graphene oxide (GO)/geopolymer (GOGP) nanocomposite was reported for the first time. The addition of GO in geopolymeric aqueous mixture (alumiosilicate and alkaline-source particles) dramatically changes its rheology properties, and enable the 3D printing that...
Compared with mechanically exfoliated and chemical vapor deposited graphene, reduced graphene oxide (RGO) possesses unique advantages such as a wet process synthesis, high yield and the ability to assemble large-area thin films on various substrates. However, RGO is normally not recommended for advanced devices owing to its poor electrical conductivity. We report a new method to prepare highly conductive...
Major advancements in the evaluation of carbon fibers at home and abroad are briefly summarized in this paper. In addition, the requirements on microstructure, composition, surface elements, ash, processing and stability of carbon fibers used in the aerospace field are introduced. Future trends for the evaluation of aerospace carbon fibers are discussed.[New Carbon Materials 2014, 29(3): 161–168]
A network-like carbon nanofiber (CNF) film with an open porous structure formed by the open space between entangled CNFs is fabricated by electrophoretic deposition. The performance of the CNF film as an electrocatalyst in the presence of electrodeposited Pd nanoparticles for ethanol oxidation in alkaline media is investigated. Cyclic voltammetric analyses show the electrocatalyst has a good electrocatalytic...
Multi-walled carbon nanotube–tungsten carbide composites were prepared by the reduction and carbonization process using multi-walled carbon nanotubes (MWCNTs) and WO 3 precursor by molecular level mixing and calcination. The pre-prepared MWCNT–tungsten carbide composites were characterized by scanning electron microscope and transmission electron microscope. Furthermore, the crystal phase...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.