Journal ArticleDOI
Ordered hierarchical mesoporous/macroporous carbon: a high-performance catalyst for rechargeable Li-O(2) batteries.
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TLDR
Three-dimensional ordered mesoporous/macroporous carbon sphere arrays are synthesized and then used as a catalyst for Li-O2 batteries and the hierarchical porous structure of the MMCSAs facilitates electrolyte immersion and Li(+) diffusion and provides an effective space for O2 diffusion and O2 /Li2 O2 conversion.Abstract:
Three-dimensional ordered mesoporous/macroporous carbon sphere arrays (MMCSAs) are synthesized and then used as a catalyst for Li-O2 batteries. The hierarchical porous structure of the MMCSAs not only facilitates electrolyte immersion and Li(+) diffusion but also provides an effective space for O2 diffusion and O2 /Li2 O2 conversion, and thus efficiently improves the performance of Li-O2 batteries.read more
Citations
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Journal ArticleDOI
Hierarchical Mesoporous/Macroporous Perovskite La0.5Sr0.5CoO3-x Nanotubes: A Bifunctional Catalyst with Enhanced Activity and Cycle Stability for Rechargeable Lithium Oxygen Batteries.
Guoxue Liu,Hongbin Chen,Lu Xia,Suqing Wang,Liang-Xin Ding,Dongdong Li,Dongdong Li,Kang Xiao,Sheng Dai,Haihui Wang,Haihui Wang +10 more
TL;DR: The synergy of high catalytic activity and hierarchical mesoporous/macroporous nanostructured perovskite-type catalysts results in the Li-O2 batteries with good rate capability and excellent cycle stability.
Journal ArticleDOI
Multi-channeled hierarchical porous carbon incorporated Co3O4 nanopillar arrays as 3D binder-free electrode for high performance supercapacitors
Yuanchuan Zheng,Zhaoqian Li,Juan Xu,Tilong Wang,Xun Liu,Xiaohui Duan,Yongjun Ma,Yong Zhou,Chonghua Pei +8 more
TL;DR: In this paper, a hierarchical porous N-doped carbon and Co 3 O 4 nanopillar arrays derived from Morpho butterfly wing scales have been explored, and these structures have demonstrated enhanced capacitance.
Journal ArticleDOI
Ordered Mesoporous Titanium Nitride as a Promising Carbon-Free Cathode for Aprotic Lithium-Oxygen Batteries
TL;DR: This study reveals that when the appropriate structure and material choice of the air-cathode are coupled with an advanced separator and an effective solution-phase redox mediator, the cycle lives of Li-O2 batteries can be enhanced dramatically.
Journal ArticleDOI
Humidity effect on electrochemical performance of Li–O2 batteries
TL;DR: In this paper, the performance of Li-O2 batteries in pure/dry O2, pure O2 with a relative humidity (RH) of 15% and ambient air with an RH of 50% was analyzed.
References
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Journal ArticleDOI
Li-O2 and Li-S batteries with high energy storage.
Peter G. Bruce,Stefan Freunberger,Laurence J. Hardwick,Laurence J. Hardwick,Jean-Marie Tarascon +4 more
TL;DR: The energy that can be stored in Li-air and Li-S cells is compared with Li-ion; the operation of the cells is discussed, as are the significant hurdles that will have to be overcome if such batteries are to succeed.
Journal ArticleDOI
Carbon Materials for Chemical Capacitive Energy Storage
TL;DR: In order to further improve the power and energy densities of the capacitors, carbon-based composites combining electrical double layer capacitors (EDLC)-capacitance and pseudo-Capacitance have been explored and show not only enhanced capacitance, but as well good cyclability.
Journal ArticleDOI
A reversible and higher-rate Li-O2 battery.
TL;DR: Operation of the rechargeable Li-O2 battery depends critically on repeated and highly reversible formation/decomposition of lithium peroxide (Li2O2) at the cathode upon cycling, and it is shown that this process is possible with the use of a dimethyl sulfoxide electrolyte and a porous gold electrode.
Journal ArticleDOI
Iron Encapsulated within Pod‐like Carbon Nanotubes for Oxygen Reduction Reaction
Dehui Deng,Liang Yu,Xiaoqi Chen,Guoxiong Wang,Li Jin,Xiulian Pan,Jiao Deng,Gongquan Sun,Xinhe Bao +8 more
TL;DR: Chainmail for catalysts: a catalyst with iron nanoparticles confined inside pea-pod-like carbon nanotubes exhibits a high activity and remarkable stability as a cathode catalyst in polymer electrolyte membrane fuel cells (PEMFC), even in presence of SO(2).
Journal ArticleDOI
Platinum−Gold Nanoparticles: A Highly Active Bifunctional Electrocatalyst for Rechargeable Lithium−Air Batteries
Yi-Chun Lu,Zhichuan J. Xu,Hubert A. Gasteiger,Shuo Chen,Kimberly Hamad-Schifferli,Yang Shao-Horn +5 more
TL;DR: PtAu nanoparticles were shown to strongly enhance the kinetics of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in rechargeable Li-O(2) cells, found to exhibit the highest round-trip efficiency reported to date.