2019
DOI: 10.3390/c5040082
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Application of Experimental Design to Hydrogen Storage: Optimisation of Lignin-Derived Carbons

Abstract: Lignin is a significant by-product of the paper pulping and biofuel industries. Upgrading lignin to a high-value product is essential for the economic viability of biorefineries for bioethanol production and environmentally benign pulping processes. In this work, the feasibility of lignin-derived activated carbons for hydrogen storage was studied using a Design of Experiments methodology, for a time and cost-efficient exploration of the synthesis process. Four factors (carbonisation temperature, activation tem… Show more

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Cited by 8 publications
(4 citation statements)
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“…To ensure comparability, an identical pulping process was used for extraction. An in-depth investigation into how the synthesis parameters affected activated carbon properties was performed previously by the authors . In the present study, low-temperature carbonization conditions are employed to restrict porosity development in lignin chars via self-activation, to produce carbons with comparable adsorptive performance on activation.…”
Section: Introductionmentioning
confidence: 94%
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“…To ensure comparability, an identical pulping process was used for extraction. An in-depth investigation into how the synthesis parameters affected activated carbon properties was performed previously by the authors . In the present study, low-temperature carbonization conditions are employed to restrict porosity development in lignin chars via self-activation, to produce carbons with comparable adsorptive performance on activation.…”
Section: Introductionmentioning
confidence: 94%
“…These result in the formation of p-hydroxyphenyl (H), guaiacyl (G), and sinapyl (S) residues in the polymer, respectively. 9,11 Previous work by the authors, 12 and other research groups, [13][14][15][16][17] has demonstrated that pore characteristics of biomass and lignin-derived carbons can be controlled through careful selection of synthesis conditions. However, previous research on biomass-derived carbons has demonstrated the choice of feedstock is also critical to the properties of resulting activated carbon materials, 9,18 affecting the molecular structure of the char, ash and carbon content.…”
Section: Introductionmentioning
confidence: 99%
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“…2000 m 2 ·g −1 ) were observed for the carbonized K 2 CO 3 -activated precursors. Rowlandson et al [ 48 ] used lignin from the organosolv process, which was then thermally treated at various temperatures in an inert gas without the use of chemical activators. The produced activated carbons exhibited surface areas as high as 1400 m 2 ·g −1 , and showcased favorable performances in hydrogen storage (1.9 wt% at 77 K, 1 bar).…”
Section: Introductionmentioning
confidence: 99%