Manganese Oxide Nanomaterials for Energy Applications
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Manganese Oxide Nanomaterials for Energy Applications John A. Jonker 1 and Michael E. Hagerman 2 Departments of Electrical Engineering 1 and Chemistry 2 , Union College, Schenectady, NY, 12308 SEM and AFM Data Conclusions Acknowledgements References Device Fabrication and Expected Performance IR Spectrum Future Work The final goal of this project is to replicate the final final device that use the MnO 2 needles, RGO and Ag nanowires. Understanding and performing the MnO 2 synthesis is important for that. From there alternate materials will be switched in for the existing components to understand what types of materials improve performance. Potentially, a fourth component could be added to test if improving the order of the hybrid film will improve performance. Abstract With increasing demands for miniaturization and optimization of electronics, smaller and more efficient means of power storage are needed. Supercapacitors offer higher power densities, faster charging and discharging, and longer lifespans compared to ion batteries. We are currently exploring the synthesis and characterization of a functional supercapacitor prototype comprised of semiconductive manganese (IV) oxide nanoneedles, silver nanowires and reduced graphene oxide. After all three materials are fabricated, they can be added simultaneously in an aqueous colloidal suspension and cast as a film onto filter paper via vacuum filtration without the need for organic solvents. Manganese oxide nanomaterials with varied nanomorphologies were synthesized using colloidal methods at varied temperatures, with and without graphene oxide nanotemplates. Infrared spectroscopy, scanning electron microscopy, and atomic force microscopy were used to confirm successful syntheses and study the composition and morphology of the nanocomposites. •Temperature has a huge affect on the shape the final MnO 2 takes •Time is important to control too, but appeared to be more flexible than temperature •The synthesis is extremely novel, the IR data showed very little other specimens. •Extremely precise temperature control required to control nanomorphology Hagerlegue Professor Kehlbeck Professor Catravas Professor Amanuel Professor Cortez Professor Hedrick Mark Hooker Katharine Dovidenko Chemistry Department Electrical Engineering Department National Science Foundation DMR1229142 EAR0619578 CMMI1342577 1. High-Performance Microsupercapacitors Based on Two-Dimensional Graphene/Manganese Dioxide/Silver Nanowire Ternary Hybrid Film Wenwen Liu, Congxiang Lu, Xingli Wang, Roland Yingjie Tay, and Beng Kang Tay, ACS Nano 2015 9 (2), 1528-1542 2. Graphene Oxide−Maganese Oxide Nanocomposites for Supercapacitors Sheng Chen, Junwu Zhu, Xiaodong Wu, Qiaofeng Han, and Xin Wang, ACS Nano 2010 4 (5), 2822-2830 3. Highly Conductive and Flexible Paper of 1D Silver-Nanowire-Doped Graphene Jian Chen, Hui Bi, Shengrui Sun, Yufeng Tang, Wei Zhao, Tianquan Lin, Dongyun Wan, Fuqiang Huang, Xiaodong Zhou, Xiaoming Xie, and Mianheng Jiang.ACS Applied Materials & Interfaces 2013 5 (4), 1408-1413 4. Directed Self-Assembly in Laponite/CdSe/Polyaniline Nanocomposites Joanne D. Kehlbeck, Michael E. Hagerman, Brian D. Cohen, Jennifer Eliseo, Melissa Fox, William Hoek, David Karlin, Evan Leibner, Emily Nagle, Michael Nolan, Ian Schaefer, Alexandra Toney, Michael Topka, Richard Uluski, and Charles Wood. Langmuir 2008 24 (17), 9727-9738 5. Shape-Controlled Synthesis of One-Dimensional MnO2 via a Facile Quick-Precipitation Procedure and its Electrochemical Properties Sheng Chen, Junwu Zhu, Qiaofeng Han, Zhijun Zheng, Yong Yang, and Xin Wang. Crystal Growth & Design 2009 9 (10), 4356-4361 6. Large-Size Graphene Microsheets as a Protective Layer for Transparent Conductive Silver Nanowire Film Heaters Zhang, X.; Yan, X. B.; Chen, J. T.; Zhao, J. P. Carbon 2014, 69, 437–443 7. http://www.capacitor.com.hk/upload/0310.jpg 8. http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageServic e/Articleimage/2014/RA/c4ra06136e/c4ra06136e-f1_hi-res.gif 9. Shape-Controlled Synthesis of One-Dimensional MnO2 via a Facile Quick-Precipitation Procedure and its Electrochemical Properties Sheng Chen, Junwu Zhu, Qiaofeng Han, Zhijun Zheng, Yong Yang, and Xin Wang Crystal Growth & Design 2009 9 (10), 4356-4361 Device Setup Nanomorphology Methods Manganese (II) chloride tetrahydrate will be used as a reagent to synthesize manganese (IV) oxide nanoneedles. 0.27 g of MnCl 2 · 4H 2 O will be dispersed in 50 mL of isopropyl alcohol and ultrasonicated for 30 minutes. The mixture in a reflux setup will then be brought up to 83℃ and 5 mL of a 0.19M aqueous solution of KMnO 4 will be rapidly added to the solution. After 30 minutes, the solution will be cooled to room temperature, centrifuged, washed and left to dry overnight at 60℃. The washed MnO 2 will then be dispersed in a 0.5 mL water suspension at a concentration of 0.1 mg per mL. Figures from Wenwen Liu, Congxiang Lu, Xingli Wang, Roland Yingjie Tay, and Beng Kang Tay [1] Electric Double Layer Capacitor [7] Psuedocapacitor [8] Diagram of Mechanism of Reaction [9[
Transcript of Manganese Oxide Nanomaterials for Energy Applications
Manganese Oxide Nanomaterials for Energy ApplicationsJohn A. Jonker1 and Michael E. Hagerman2
Departments of Electrical Engineering1 and Chemistry2, Union College, Schenectady, NY, 12308
SEM and AFM Data Conclusions
Acknowledgements
References
Device Fabrication and Expected Performance
IR Spectrum
Future WorkThe final goal of this project is to replicate the final final device that use the MnO2 needles, RGO and Ag nanowires. Understanding and performing the MnO2 synthesis is important for that. From there alternate materials will be switched in for the existing components to understand what types of materials improve performance. Potentially, a fourth component could be added to test if improving the order of the hybrid film will improve performance.
AbstractWith increasing demands for miniaturization and optimization of electronics, smaller and more efficient means of power storage are needed. Supercapacitors offer higher power densities, faster charging and discharging, and longer lifespans compared to ion batteries. We are currently exploring the synthesis and characterization of a functional supercapacitor prototype comprised of semiconductive manganese (IV) oxide nanoneedles, silver nanowires and reduced graphene oxide. After all three materials are fabricated, they can be added simultaneously in an aqueous colloidal suspension and cast as a film onto filter paper via vacuum filtration without the need for organic solvents. Manganese oxide nanomaterials with varied nanomorphologies were synthesized using colloidal methods at varied temperatures, with and without graphene oxide nanotemplates. Infrared spectroscopy, scanning electron microscopy, and atomic force microscopy were used to confirm successful syntheses and study the composition and morphology of the nanocomposites.
•Temperature has a huge affect on the shape the final MnO2 takes•Time is important to control too, but appeared to be more flexible than temperature•The synthesis is extremely novel, the IR data showed very little other specimens.•Extremely precise temperature control required to control nanomorphology
HagerlegueProfessor KehlbeckProfessor CatravasProfessor AmanuelProfessor CortezProfessor HedrickMark HookerKatharine DovidenkoChemistry DepartmentElectrical Engineering DepartmentNational Science FoundationDMR1229142EAR0619578 CMMI1342577
1. High-Performance Microsupercapacitors Based on Two-Dimensional Graphene/Manganese Dioxide/Silver Nanowire Ternary Hybrid Film Wenwen Liu, Congxiang Lu, Xingli Wang, Roland Yingjie Tay, and Beng Kang Tay, ACS Nano 2015 9 (2), 1528-1542
2. Graphene Oxide−Maganese Oxide Nanocomposites for Supercapacitors Sheng Chen, Junwu Zhu, Xiaodong Wu, Qiaofeng Han, and Xin Wang, ACS Nano 2010 4 (5), 2822-2830
3. Highly Conductive and Flexible Paper of 1D Silver-Nanowire-Doped Graphene Jian Chen, Hui Bi, Shengrui Sun, Yufeng Tang, Wei Zhao, Tianquan Lin, Dongyun Wan, Fuqiang Huang, Xiaodong Zhou, Xiaoming Xie, and Mianheng Jiang.ACS Applied Materials & Interfaces 2013 5 (4), 1408-1413
4. Directed Self-Assembly in Laponite/CdSe/Polyaniline Nanocomposites Joanne D. Kehlbeck, Michael E. Hagerman, Brian D. Cohen, Jennifer Eliseo, Melissa Fox, William Hoek, David Karlin, Evan Leibner, Emily Nagle, Michael Nolan, Ian Schaefer, Alexandra Toney, Michael Topka, Richard Uluski, and Charles Wood. Langmuir 2008 24 (17), 9727-9738
5. Shape-Controlled Synthesis of One-Dimensional MnO2 via a Facile Quick-Precipitation Procedure and its Electrochemical Properties Sheng Chen, Junwu Zhu, Qiaofeng Han, Zhijun Zheng, Yong Yang, and Xin Wang. Crystal Growth & Design 2009 9 (10), 4356-4361
6. Large-Size Graphene Microsheets as a Protective Layer for Transparent Conductive Silver Nanowire Film Heaters Zhang, X.; Yan, X. B.; Chen, J. T.; Zhao, J. P. Carbon 2014, 69, 437–443
7. http://www.capacitor.com.hk/upload/0310.jpg8. http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageServic
e/Articleimage/2014/RA/c4ra06136e/c4ra06136e-f1_hi-res.gif9. Shape-Controlled Synthesis of One-Dimensional MnO2 via a Facile Quick-Precipitation Procedure
and its Electrochemical Properties Sheng Chen, Junwu Zhu, Qiaofeng Han, Zhijun Zheng, Yong Yang, and Xin Wang Crystal Growth & Design 2009 9 (10), 4356-4361
Device Setup
Nanomorphology
MethodsManganese (II) chloride tetrahydrate will be used as a reagent to synthesize manganese (IV) oxide nanoneedles. 0.27 g of MnCl2 · 4H2O will be dispersed in 50 mL of isopropyl alcohol and ultrasonicated for 30 minutes. The mixture in a reflux setup will then be brought up to 83℃ and 5 mL of a 0.19M aqueous solution of KMnO4 will be rapidly added to the solution. After 30 minutes, the solution will be cooled to room temperature, centrifuged, washed and left to dry overnight at 60℃. The washed MnO2 will then be dispersed in a 0.5 mL water suspension at a concentration of 0.1 mg per mL.
Figures from Wenwen Liu, Congxiang Lu, Xingli Wang, Roland Yingjie Tay, and Beng Kang Tay[1]
Electric Double Layer Capacitor[7]
Psuedocapacitor[8]
Diagram of Mechanism of Reaction[9[
