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An Investigation on Renewable Carbon...

Semeniuk, Maria Natalia.

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An Investigation on Renewable Carbons as Natural Sources of Fluorescent and Conductive Materials for Smart Device Applications.

Record Type:	Electronic resources : Monograph/item
Title/Author:	An Investigation on Renewable Carbons as Natural Sources of Fluorescent and Conductive Materials for Smart Device Applications./
Author:	Semeniuk, Maria Natalia.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2023,
Description:	162 p.
Notes:	Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
Contained By:	Dissertations Abstracts International85-01B.
Subject:	Materials science. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30310804
ISBN:	9798379771829

An Investigation on Renewable Carbons as Natural Sources of Fluorescent and Conductive Materials for Smart Device Applications.
Semeniuk, Maria Natalia.

An Investigation on Renewable Carbons as Natural Sources of Fluorescent and Conductive Materials for Smart Device Applications. - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 162 p.

Source: Dissertations Abstracts International, Volume: 85-01, Section: B.

Thesis (Ph.D.)--University of Toronto (Canada), 2023.

This item must not be sold to any third party vendors.

Controlled carbonization of biomass leads to nano-layered graphitic structures with characteristic crystalline sp2 hybridization with conductive and optical properties. The starting material and processing parameters influence the final chemical and morphological structure of the renewable carbon, which determine its practical applications. Biomasses investigated include various wood, xylem sap and peanut shells. Controlled pyrolysis of several wood species to 800 {CB}{9A}C yielded photoluminescent graphene clusters with a notable electrical conductivity of 600 S/m and electromagnetic interference shielding effectiveness of 47.7 dB at 12 GHz. This is due to the renewable graphitic carbon's material graphene-graphite composite, since graphene is known to be highly conductive due to its high carrier mobility. Catalytic graphitization with iron nitrate nanoparticles successfully showed the formation of single crystal graphitic carbon structures in black spruce (Picea mariana) at temperatures between 300-800 {CB}{9A}C and conductivity of 850 S/m. This P. mariana renewable carbon was applied as the cathode of a coin cell battery. To reduce processing temperature further, hydrothermal pyrolysis was performed at 180 {CB}{9A}C on xylem sap. A characteristic crystalline sp2 carbon was observed in hydrochar xylem syrup. When UV light is shone on the carbon, by the "naked eye" it can selectively detect Fe3+ ions and pH. A chemo{A0}sensor was designed based on logic gates, which can displace traditional metal-oxide-semiconductor field-effect transistor (MOSFET) based circuits. Additionally, multiple thermogravimetric comparisons were performed using several model-free and model-based kinetic analyses, where activation energy and pre-exponential factors were determined during the decomposition process. Peanut shell graphitic carbon was applied as an electrode in a Li-ion coin cell battery, yielding a specific capacity of 220 mAh/g and 100 % columbic efficiency for 800 cycles. Thus, these findings on renewable carbon will open a new frontier in sustainable bio-electronics and energy materials manufacturing.

ISBN: 9798379771829Subjects--Topical Terms:

543314
Materials science.
Subjects--Index Terms:

Graphitic structures

An Investigation on Renewable Carbons as Natural Sources of Fluorescent and Conductive Materials for Smart Device Applications.
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100 1 $a Semeniuk, Maria Natalia. $3 3764321
245 1 3 $a An Investigation on Renewable Carbons as Natural Sources of Fluorescent and Conductive Materials for Smart Device Applications.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2023
300 $a 162 p.
500 $a Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
500 $a Advisor: Sain, Mohini;Lu, Zheng-Hong.
502 $a Thesis (Ph.D.)--University of Toronto (Canada), 2023.
506 $a This item must not be sold to any third party vendors.
520 $a Controlled carbonization of biomass leads to nano-layered graphitic structures with characteristic crystalline sp2 hybridization with conductive and optical properties. The starting material and processing parameters influence the final chemical and morphological structure of the renewable carbon, which determine its practical applications. Biomasses investigated include various wood, xylem sap and peanut shells. Controlled pyrolysis of several wood species to 800 {CB}{9A}C yielded photoluminescent graphene clusters with a notable electrical conductivity of 600 S/m and electromagnetic interference shielding effectiveness of 47.7 dB at 12 GHz. This is due to the renewable graphitic carbon's material graphene-graphite composite, since graphene is known to be highly conductive due to its high carrier mobility. Catalytic graphitization with iron nitrate nanoparticles successfully showed the formation of single crystal graphitic carbon structures in black spruce (Picea mariana) at temperatures between 300-800 {CB}{9A}C and conductivity of 850 S/m. This P. mariana renewable carbon was applied as the cathode of a coin cell battery. To reduce processing temperature further, hydrothermal pyrolysis was performed at 180 {CB}{9A}C on xylem sap. A characteristic crystalline sp2 carbon was observed in hydrochar xylem syrup. When UV light is shone on the carbon, by the "naked eye" it can selectively detect Fe3+ ions and pH. A chemo{A0}sensor was designed based on logic gates, which can displace traditional metal-oxide-semiconductor field-effect transistor (MOSFET) based circuits. Additionally, multiple thermogravimetric comparisons were performed using several model-free and model-based kinetic analyses, where activation energy and pre-exponential factors were determined during the decomposition process. Peanut shell graphitic carbon was applied as an electrode in a Li-ion coin cell battery, yielding a specific capacity of 220 mAh/g and 100 % columbic efficiency for 800 cycles. Thus, these findings on renewable carbon will open a new frontier in sustainable bio-electronics and energy materials manufacturing.
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650 4 $a Natural resource management. $3 589570
650 4 $a Nanoscience. $3 587832
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653 $a Peanut shells
653 $a Photoluminescent graphene
653 $a Energy materials
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710 2 $a University of Toronto (Canada). $b Forestry. $3 3174961
773 0 $t Dissertations Abstracts International $g 85-01B.
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791 $a Ph.D.
792 $a 2023
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30310804