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For efficient degradation of gaseous formaldehyde, BiVO4 (BVO) quantum tubes (QTs) were successfully synthesized and loaded on reduced graphene oxide (rGO) aerogel as a composite photocatalyst. Benefit from the band-gap widening effect in nanostructured BVO, the BVO-QTs can generate energetic photoelectrons required by oxygen reduction. The coupled rGO-aerogel would serve as a fast transfer path for...
Electrical and electronic applications of carbon nanotube (CNT) fibers require new methods to join them with other live parts of the circuits electrically and mechanically. In this study, the meniscus-confined localized electrochemical deposition (LECD) from a simple aqueous electrolyte was developed as a feasible method to precisely join CNT fibers with copper substrates in an open air environment...
The Giseeler fluidity method was used to investigate the rheological properties of pitch with and without heat treatment from room temperature to 520°C. Results show that the fluidity has a good repeatability at different temperatures under different heating rates. The fluidity of the raw pitch slowly increases from 253 to 282°C, then increases exponentially from 282 to 311°C near the softening temperature,...
TiO 2 –C hybrid aerogels were obtained by a one-pot sol-gel method, followed by supercritical drying and pyrolysis, using resorcinol (R) and furfural (F) as carbon sources, and TiCl 4 or Ti(OBu) 4 as the TiO2 precursor. The hybrid aerogels were characterized by XRD, HR-TEM and N 2 adsorption. The photocatalytic activity of the samples was evaluated based on the conversion...
Chemical states of nitrogen in the carbon aerogels synthesized from phenol-melamine-formaldehyde were investigated by elemental analysis, X-ray photoelectron spectroscopy and nitrogen adsorption. It is found that the carbon aerogels are rich in mesopores and the nitrogen content of the carbon aerogels increases from 1.6 to 3.1 wt. % with increasing melamine to phenol ratios. Over two-thirds of nitrogen...
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