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Electrochemically oxidized carbon fibers (ECF) adsorbed a prodigious amount of Ag + in contrast to oxygen plasma and nitric acid treated carbon fibers. The amount of adsorbed Ag + reached 3700 μmol/g after 5652 C/g of electrochemical oxidation. This value approaches the 4050 μmol/g of Ag + which adsorbed onto steam-activated Kenaf-based carbon (with a surface area of 1284 m...
High-strength PAN-based carbon fibers were continuously electrochemically oxidized by applying current through the fibers which served as an anode in 1% wt. KNO 3 solutions. NaOH titration showed that the quantity of acidic surface functions increased with the extent of electrochemical oxidation up to oxidation levels of 6360 Cg −1 . Fibers with over 1.1 mmolg −1 of total acidic...
High strength PAN-based carbon fibers were continuously electrochemically oxidized by applying current to the fibers serving as an anode in 1% wt aqueous KNO 3 . Progressive fiber weight loss occurred with increasing extents of electrochemical oxidation. XPS studies (C 1s and O 1s) indicated that the oxygen/carbon atomic ratio rose rapidly to 0.24 as the extent of electrochemical oxidation...
Pitch-based activated carbon fiber (ACF) supporting silver (ACF (Ag)) was prepared by pre-oxidization, carbonization, activation, immersion and decomposition processes. The structures, surface photographs and functional groups of the ACF and the ACF (Ag) were investigated. The ACF exhibited increased oxygen-containing functional groups and decreased BET specific surface areas after supporting silver...
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