Iron oxide, nanoparticles, hematite, thermal decomposition

     
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Abstract

The combination of high electronic conductivity, enhanced ionic mobility, and high pore volume make ordered mesoporous carbons promising scaffolds for active sầu energy storage materials. However, mesoporous morphology và structural stability needs to be more thoroughly addressed. As such, in this paper, we demonstrate sắt 2O 3 impregnation inlớn 1D cylindrical (FDU-15), 2 chiều hexagonal (CMK-3), và 3 chiều bicontinuous (CMK-8) symmetries of mesoporous carbons. We use these materials for a systematic study of the effect of mesoporous architecture on the structure stability, ion mobility, và performance of mesoporous composite electrodes. By optimization of the porous structure, the oxide impregnation enabled relatively high performance: >650 F g –1 of sắt 2O 3 & >200 F g –1 total capacitance. This work highlights the new considerations of structure degradation in different pore symmetries with active material impregnation và its effect on ion mobility và electrochemical performance in porous scaffold electrodes. The results show that the most commonly used 2D CMK-3 is not suitable as a host material due to its poor structure stability and ion mobility, while the 1D FDU-15 và 3 chiều CMK-8 have sầu their own merits related khổng lồ framework stability và porous structures.


Authors: Hu, Junkai<1>; Noked, Malachi<1>; Gillette, Eleanor<1>; Gui, Zhe<1>; Lee, Sang Bok<1>
Univ. of Marylvà, College Park, MD (United States) Publication Date: Fri Jun 12 00:00:00 EDT năm ngoái Retìm kiếm Org.: Energy Frontier Retìm kiếm Centers (EFRC) (United States). Nanostructures for Electrical Energy Storage (NEES) Sponsoring Org.: USDOE Office of Science (SC), Basic Energy Sciences (BES) tinycollege.edu.vn Identifier: 1386082 Alternate Identifier(s): tinycollege.edu.vn ID: 1246655 Grant/Contract Number: SC0001160 Resource Type: Journal Article: Accepted Manuscript Journal Name: Carbon Additional Journal Information: Journal Volume: 93; Journal Issue: C; Related Information: NEES partners with University of Maryl& (lead); University of California, Irvine; University of Florida; Los Alamos National Laboratory; Sandia National Laboratories; Yale University; Journal ID: ISSN 0008-6223 Publisher: Elsevier Country of Publication: United States Language: English Subject: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; bio-inspired; energy storage (including batteries & capacitors); defects; charge transport; synthesis (novel materials); synthesis (self-assembly); synthesis (scalable processing)


Xem thêm:

Hu, Junkai, Noked, Malabỏ ra, Gillette, Eleanor, Gui, Zhe, và Lee, Sang Bok. Capacitance behavior of ordered mesoporous carbon/Fe2O3 composites: Comparison between 1D cylindrical, 2D hexagonal, & 3 chiều bicontinuous mesostructures. United States: N. p., năm ngoái. Web. doi:10.1016/j.carbon.năm ngoái.06.019.
Hu, Junkai, Noked, Malađưa ra, Gillette, Eleanor, Gui, Zhe, & Lee, Sang Bok. Capacitance behavior of ordered mesoporous carbon/Fe2O3 composites: Comparison between 1D cylindrical, 2D hexagonal, and 3D bicontinuous mesostructures. United States. https://doi.org/10.1016/j.carbon.2015.06.019
Hu, Junkai, Noked, Malabỏ ra, Gillette, Eleanor, Gui, Zhe, và Lee, Sang Bok. Fri . "Capacitance behavior of ordered mesoporous carbon/Fe2O3 composites: Comparison between 1D cylindrical, 2 chiều hexagonal, and 3D bicontinuous mesostructures". United States. https://doi.org/10.1016/j.carbon.năm ngoái.06.019. https://www.tinycollege.edu.vn/servlets/purl/1386082.


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articletinycollege.edu.vn_1386082, title = Capacitance behavior of ordered mesoporous carbon/Fe2O3 composites: Comparison between 1D cylindrical, 2D hexagonal, and 3D bicontinuous mesostructures, author = Hu, Junkai và Noked, Malabỏ ra & Gillette, Eleanor và Gui, Zhe and Lee, Sang Bok, abstractNote = The combination of high electronic conductivity, enhanced ionic mobility, và high pore volume make ordered mesoporous carbons promising scaffolds for active energy storage materials. However, mesoporous morphology & structural stability needs to be more thoroughly addressed. As such, in this paper, we demonstrate Fe2O3 impregnation inlớn 1D cylindrical (FDU-15), 2D hexagonal (CMK-3), và 3 chiều bicontinuous (CMK-8) symmetries of mesoporous carbons. We use these materials for a systematic study of the effect of mesoporous architecture on the structure stability, ion mobility, & performance of mesoporous composite electrodes. By optimization of the porous structure, the oxide impregnation enabled relatively high performance: >650 F g–1 of Fe2O3 & >200 F g–1 total capacitance. This work highlights the new considerations of structure degradation in different pore symmetries with active material impregnation & its effect on ion mobility và electrochemical performance in porous scaffold electrodes. The results show that the most commonly used 2 chiều CMK-3 is not suitable as a host material due to lớn its poor structure stability và ion mobility, while the 1D FDU-15 và 3 chiều CMK-8 have sầu their own merits related to framework stability & porous structures., doi = 10.1016/j.carbon.2015.06.019, url = https://www.tinycollege.edu.vn/biblio/1386082, journal = Carbon, issn = 0008-6223, number = C, volume = 93, place = United States, year = Fri Jun 12 00:00:00 EDT 2015, month = Fri Jun 12 00:00:00 EDT 2015

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