Aaron George
University of California, Riverside
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Publication
Featured researches published by Aaron George.
Scientific Reports | 2015
Zachary Favors; Wei Wang; Hamed Hosseini Bay; Aaron George; Mihrimah Ozkan; Cengiz S. Ozkan
Herein, SiO2 nanotubes have been fabricated via a facile two step hard-template growth method and evaluated as an anode for Li-ion batteries. SiO2 nanotubes exhibit a highly stable reversible capacity of 1266 mAhg−1 after 100 cycles with negligible capacity fading. SiO2 NT anodes experience a capacity increase throughout the first 80 cycles through Si phase growth via SiO2 reduction. The hollow morphology of the SiO2 nanotubes accommodates the large volume expansion experienced by Si-based anodes during lithiation and promotes preservation of the solid electrolyte interphase layer. The thin walls of the SiO2 nanotubes allow for effective reduction in Li-ion diffusion path distance and, thus, afford a favorable rate cyclability. The high aspect ratio character of these nanotubes allow for a relatively scalable fabrication method of nanoscale SiO2-based anodes.
Scientific Reports | 2014
Zachary Favors; Wei Wang; Hamed Hosseini Bay; Aaron George; Mihrimah Ozkan; Cengiz S. Ozkan
Herein, SiO2 nanotubes have been fabricated via a facile two step hard-template growth method and evaluated as an anode for Li-ion batteries. SiO2 nanotubes exhibit a highly stable reversible capacity of 1266 mAhg−1 after 100 cycles with negligible capacity fading. SiO2 NT anodes experience a capacity increase throughout the first 80 cycles through Si phase growth via SiO2 reduction. The hollow morphology of the SiO2 nanotubes accommodates the large volume expansion experienced by Si-based anodes during lithiation and promotes preservation of the solid electrolyte interphase layer. The thin walls of the SiO2 nanotubes allow for effective reduction in Li-ion diffusion path distance and, thus, afford a favorable rate cyclability. The high aspect ratio character of these nanotubes allow for a relatively scalable fabrication method of nanoscale SiO2-based anodes.
Small | 2014
Wei Wang; Isaac Ruiz; Kazi Ahmed; Hamed Hosseini Bay; Aaron George; Johnny Wang; John Butler; Mihrimah Ozkan; Cengiz S. Ozkan
In this work, we report the synthesis of an three-dimensional (3D) cone-shape CNT clusters (CCC) via chemical vapor deposition (CVD) with subsequent inductively coupled plasma (ICP) treatment. An innovative silicon decorated cone-shape CNT clusters (SCCC) is prepared by simply depositing amorphous silicon onto CCC via magnetron sputtering. The seamless connection between silicon decorated CNT cones and graphene facilitates the charge transfer in the system and suggests a binder-free technique of preparing lithium ion battery (LIB) anodes. Lithium ion batteries based on this novel 3D SCCC architecture demonstrates high reversible capacity of 1954 mAh g(-1) and excellent cycling stability (>1200 mAh g(-1) capacity with ≈ 100% coulombic efficiency after 230 cycles).
Advanced Functional Materials | 2014
Aaron George; Zafer Mutlu; Robert Ionescu; Ryan J. Wu; Jong Seok Jeong; Hamed Hosseini Bay; Yu Chai; K. Andre Mkhoyan; Mihrimah Ozkan; Cengiz S. Ozkan
Chemical Communications | 2014
Robert Ionescu; Aaron George; Isaac Ruiz; Zachary Favors; Zafer Mutlu; Chueh Liu; Kazi Ahmed; Ryan Wu; Jong Seok Jeong; Lauro Zavala; Andre Mkhoyan; Mihri Ozkan; Cengiz S. Ozkan
Advanced Science, Engineering and Medicine | 2014
Isaac Ruiz; Wei Wang; Aaron George; Cengiz S. Ozkan; Mihrimah Ozkan
MRS Proceedings | 2011
Maziar Ghazinejad; Shirui Guo; Rajat K. Paul; Aaron George; Miroslav Penchev; Mihrimah Ozkan; Cengiz S. Ozkan
Archive | 2015
Aaron George; Robert Ionescu; Hamed Hosseini Bay; Mihrimah Ozkan; Cengiz S. Ozkan
Archive | 2014
Batteries Favors; Wei Wang; Hamed Hosseini Bay; Aaron George; Mihrimah Ozkan; Cengiz S. Ozkan
Meeting Abstracts | 2012
Shirui Guo; Aaron George; Miroslav Penchev; Cengiz S. Ozkan; Mihrimah Ozkan