Journal ArticleDOI
Ordered hierarchical mesoporous/macroporous carbon: a high-performance catalyst for rechargeable Li-O(2) batteries.
Reads0
Chats0
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
More filters
Journal ArticleDOI
Emergent electrochemical functions and future opportunities of hierarchically constructed metal–organic frameworks and covalent organic frameworks
Yosuke Hara,Ken Sakaushi +1 more
TL;DR: In this paper, the authors focus on the investigations on preparing well-defined molecular-level crystalline porous materials known as metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) into hierarchically constructed architectures from molecular structures lower than the reticular frameworks to meso-/macroscopic scale structures.
Journal ArticleDOI
Manganese Carbodiimide Nanoparticles Modified with N-Doping Carbon: A Bifunctional Cathode Electrocatalyst for Aprotic Li–O2 Battery
Mengwei Yuan,Shuting Zhang,Liu Lin,Zemin Sun,Han Yang,Huifeng Li,Genban Sun,Caiyun Nan,Shulan Ma +8 more
TL;DR: In this article, a hierarchical mesoporous nanocomposite of manganese carbodiimide nanoparticles modified with N-doping carbon materials (MnNCN/NC) is presented.
Journal ArticleDOI
Dense graphene monolith oxygen cathodes for ultrahigh volumetric energy densities
Lei Qin,Lei Qin,Dengyun Zhai,Wei Lv,Wei Wei,Wei Yu,Yu Lei,Wei Yang,Jiaqiang Huang,Shanshan Yao,Jiang Cui,Feiyu Kang,Jang Kyo Kim,Quan-Hong Yang,Quan-Hong Yang +14 more
TL;DR: In this paper, a template-assisted, high density, porous graphene monolith (THPGM) cathodes with high densities for compact Li-O 2 batteries were developed.
Journal ArticleDOI
Fast and large lithium storages from CoMoO4 nanorods-graphene composite
TL;DR: In this article, the one-dimensional (1D)-2D coupled composites consisted of CoMoO4 nanorods and graphene sheets are developed as high-rate lithium-ion batteries anode materials.
Journal ArticleDOI
Ultrafine IrO2 nanoparticle-decorated carbon as an electrocatalyst for rechargeable Li–O2 batteries with enhanced charge performance and cyclability
TL;DR: In this paper, the authors investigated the catalytic activity of ultrafine iridium (IV) oxide nanoparticles on the surface of porous Ketjenblack (KB) carbon (IrO2/KB) via one-step hydrothermal approach, and the resulting nanocomposite was investigated as an electrocatalyst for nonaqueous Li-O2 batteries.
References
More filters
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.