Abstract
The effect of different side chain linkages and stabilization temperatures on the micro- and mesoporosity of electrospun carbon nanofibers.
Highlights
Kra lignin, long regarded as a waste stream of low value, presents a promising feedstock for the production of biomaterials, -chemicals and -fuels
The weight average molar masses (Mw in Fig. 1) of the two lignins (HKL and so wood Kra lignin (SKL)) are different, where hardwood Kra lignin (HKL) has a molar mass of 1900 g molÀ1 and SKL a molar mass of 8600 g molÀ1
SKL contains considerably more of the condensed phenolic units which is in line with the higher number of C–C bonds in SKL shown by 2D heteronuclear single quantum correlation (HSQC) nuclear magnetic resonance (NMR)
Summary
The reactions during the Kra process yielding new structural arrangements (building units and linkages) and chemical compositions of Kra lignins have been the focus of several research works in the past.[6,7,8,9] In particular, advanced. We relate the type and relative quantities of the side-chain linkages (b-O-4 ether/C–C linkages) and functional groups (e.g. methoxy groups) of the Kra lignins to the development of the nanoporosity in the LCNFs, which is the decisive property in electric double layer supercapacitors
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