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Functional Porous Materials

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: closed (31 October 2022) | Viewed by 2716

Special Issue Editor

Physical Science Math and Engineering Division, Foothill College, Los Altos, CA, USA
Interests: analytical chemistry and materials analysis; nanoscience and nanotechnology; surface engineering of highly porous materials for carbon dioxide capture and enrichment

Special Issue Information

Dear Colleagues,

Porous materials provide an opportunity to achieve efficient sorption and removal of carbon dioxide from the atmosphere, with applications in Direct Air Capture (DAC). Surface and pore engineering are two key lever arms to enhance pumping speed. A key metric of grams carbon dioxide captured per square meter per second, combined with cycle time for adsorption and desorption, should be used in evaluating and comparing porous materials for DAC. Combined with the total enthalpy for the sorption and desorption cycle, the pumping speed provides a means to model large-scale DAC systems from bench scale experiments. 

Dr. Robert Cormia 
Guest Editor

Manuscript Submission Information

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Keywords

  • porous materials
  • pumping speed
  • round trip sorption
  • large-scale direct air capture (DAC)

Published Papers (1 paper)

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Research

15 pages, 2688 KiB  
Article
Mesoporous Manganese Oxide/Lignin-Derived Carbon for High Performance of Supercapacitor Electrodes
by Hersandy Dayu Kusuma, Rochmadi, Imam Prasetyo and Teguh Ariyanto
Molecules 2021, 26(23), 7104; https://doi.org/10.3390/molecules26237104 - 24 Nov 2021
Cited by 8 | Viewed by 2341
Abstract
This study explores the modification of lignin with surfactants, which can be used as a template to make mesoporous structures, and can also be used in combination with manganese oxide to produce manganese oxide/lignin-derived carbon. Organosolv extraction, using ethanol (70%) at 150 °C, [...] Read more.
This study explores the modification of lignin with surfactants, which can be used as a template to make mesoporous structures, and can also be used in combination with manganese oxide to produce manganese oxide/lignin-derived carbon. Organosolv extraction, using ethanol (70%) at 150 °C, was carried out to extract lignin from oil palm wood. Lignin was then mixed with Pluronic F-127, with and without Mn(NO3)2, and then crosslinked with acidic formaldehyde, resulting in a carbon precursor-based modified lignin. Carbonization was carried out at 900 °C to produce lignin-derived carbon and manganese oxide/lignin-derived carbon. The characterization materials included Fourier transform infrared (FTIR) spectroscopy, scanning electron microscope-energy dispersive X-ray (SEM-EDX) mapping, X-ray diffraction (XRD), and N2-sorption analysis. FTIR curves displayed the vibration bands of lignin and manganese oxide. SEM images exhibited the different morphological characteristics of carbon from LS120% (lignin with a Pluronic surfactant of 120%) and LS120%Mn20% (lignin with a Pluronic of 120% and Mn oxide of 20%). Carbon LS120% (C-LS120%) showed the highest specific surface area of 1425 m2/g with a mean pore size of 3.14 nm. The largest mean pore size of 5.23 nm with a specific surface area of 922 m2/g was exhibited by carbon LS120%-Mn20% (C-LS120%-Mn20%). C-LS120%Mn20% features two phases of Mn oxide crystals. The highest specific capacitance of 345 F/g was exhibited by C-LS120%-Mn20%. Full article
(This article belongs to the Special Issue Functional Porous Materials)
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