A soil/Vulcan XC-72 hybrid as a highly-effective catalytic cathode for rechargeable Li–O2batteries

2015 ◽  
Vol 2 (11) ◽  
pp. 1006-1010 ◽  
Author(s):  
Xiaofei Hu ◽  
Xiaorui Fu ◽  
Jun Chen
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Void Volume ◽  
Cathode Catalyst ◽  
Hybrid Catalyst ◽  
Soil C ◽  
Metal Free ◽  
Volume Expander ◽  
Lithium Oxygen Batteries ◽  
First Time

We report for the first time a hybrid of soil and commercial Vulcan XC-72 carbon (labeled as soil/C) as a high-performance cathode catalyst for rechargeable lithium–oxygen batteries. It was found that soil as a low cost and metal-free void volume expander in the hybrid catalyst is promising in the application of rechargeable Li–O2batteries.

scholarly journals Recent Progress on Catalysts for the Positive Electrode of Aprotic Lithium-Oxygen Batteries †

Inorganics ◽  
2019 ◽  
Vol 7 (6) ◽  
pp. 69 ◽  
Author(s):  
Yichao Cai ◽  
Yunpeng Hou ◽  
Yong Lu ◽  
Jun Chen
Keyword(s):  
High Performance ◽  
Noble Metals ◽  
Catalytic Mechanism ◽  
Low Cost ◽  
Rate Capability ◽  
Positive Electrode ◽  
Safety Hazards ◽  
Environmental Friendliness ◽  
Potential Safety ◽  
Lithium Oxygen Batteries

Rechargeable aprotic lithium-oxygen (Li-O2) batteries have attracted significant interest in recent years owing to their ultrahigh theoretical capacity, low cost, and environmental friendliness. However, the further development of Li-O2 batteries is hindered by some ineluctable issues, such as severe parasitic reactions, low energy efficiency, poor rate capability, short cycling life and potential safety hazards, which mainly stem from the high charging overpotential in the positive electrode side. Thus, it is of great significance to develop high-performance catalysts for the positive electrode in order to address these issues and to boost the commercialization of Li-O2 batteries. In this review, three main categories of catalyst for the positive electrode of Li-O2 batteries, including carbon materials, noble metals and their oxides, and transition metals and their oxides, are systematically summarized and discussed. We not only focus on the electrochemical performance of batteries, but also pay more attention to understanding the catalytic mechanism of these catalysts for the positive electrode. In closing, opportunities for the design of better catalysts for the positive electrode of high-performance Li-O2 batteries are discussed.

Methanol tolerant, high performance, noble metal free electrocatalyst developed from polyaniline and ferric chloride for the oxygen reduction reaction

RSC Advances ◽  
2015 ◽  
Vol 5 (112) ◽  
pp. 92648-92655 ◽  
Author(s):  
Sankararao Mutyala ◽  
Jayaraman Mathiyarasu ◽  
Ashok Mulchandani
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Noble Metal ◽  
Ferric Chloride ◽  
High Performance ◽  
Low Cost ◽  
Inert Atmosphere ◽  
Reduction Reaction ◽  
Metal Free ◽  
Methanol Tolerant

Here, we report a low-cost, noble metal free Fe–N–C catalyst prepared using carbonized polyaniline (PANI) and ferric chloride as precursors in an inert atmosphere for oxygen reduction reaction.

Fabrication of a mesoporous Ba0.5Sr0.5Co0.8Fe0.2O3−δ perovskite as a low-cost and efficient catalyst for oxygen reduction

2017 ◽  
Vol 46 (40) ◽  
pp. 13903-13911 ◽  
Author(s):  
Xiangzhi Cui ◽  
Ryan O'Hayre ◽  
Svitlana Pylypenko ◽  
Linlin Zhang ◽  
Liming Zeng ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Precious Metal ◽  
Oxygen Vacancies ◽  
Low Cost ◽  
Cathode Catalyst ◽  
Methanol Tolerance ◽  
Efficient Catalyst ◽  
Metal Free ◽  
Redox Couples ◽  
Catalytic Stability

The redox couples Co4+/Co3+ and Fe3+/Fe2+, and oxygen vacancies in mesoporous Ba0.5Sr0.5Co0.8Fe0.2O3−δ endow the precious metal-free cathode catalyst with high ORR catalytic activity, and more importantly excellent methanol tolerance and electro-catalytic stability.

Environmentally friendly high performance homopolymerized epoxy using hyperbranched epoxy as a modifier

RSC Advances ◽  
2016 ◽  
Vol 6 (17) ◽  
pp. 14211-14221 ◽  
Author(s):  
Tuan Liu ◽  
Bing Han ◽  
Liangdong Zhang ◽  
Min Wu ◽  
An Xing ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Environmentally Friendly ◽  
Hyperbranched Polyether ◽  
First Time

A high performance, low cost, and environmentally friendly epoxy is demonstrated for the first time by copolymerizing a small amount of epoxide-terminated hyperbranched polyether with DGEBA.

scholarly journals Low cost and green preparation process for α-Fe2O3@gum arabic electrode for high performance sodium ion batteries

2017 ◽  
Vol 5 (5) ◽  
pp. 2102-2109 ◽  
Author(s):  
Li Xu ◽  
Hansinee Sitinamaluwa ◽  
Henan Li ◽  
Jingxia Qiu ◽  
Yazhou Wang ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Gum Arabic ◽  
Fabrication Process ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Preparation Process ◽  
Water Based ◽  
Electrode Fabrication ◽  
First Time

A high performance α-Fe2O3 electrode is prepared via a green gum arabic-water based electrode fabrication process for SIBs for the first time.

scholarly journals Synchronously Strengthen and Toughen Polypropylene Using Tartaric Acid-Modified Nano-CaCO3

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2493
Author(s):  
Junlong Yao ◽  
Hanchao Hu ◽  
Zhengguang Sun ◽  
Yucong Wang ◽  
Huabo Huang ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Impact Toughness ◽  
Tartaric Acid ◽  
High Performance ◽  
Mechanical Performance ◽  
Low Cost ◽  
Complexing Agent ◽  
Environmental Technology ◽  
The Impact ◽  
First Time

In order to overcome the challenge of synchronously strengthening and toughening polypropylene (PP) with a low-cost and environmental technology, CaCO3 (CC) nanoparticles are modified by tartaric acid (TA), a kind of food-grade complexing agent, and used as nanofillers for the first time. The evaluation of mechanical performance showed that, with 20 wt.% TA-modified CC (TAMCC), the impact toughness and tensile strength of TAMCC/PP were 120% and 14% more than those of neat PP, respectively. Even with 50 wt.% TAMCC, the impact toughness and tensile strength of TAMCC/PP were still superior to those of neat PP, which is attributable to the improved compatibility and dispersion of TAMCC in a PP matrix, and the better fluidity of TAMCC/PP nanocomposite. The strengthening and toughening mechanism of TAMCC for PP involves interfacial debonding between nanofillers and PP, and the decreased crystallinity of PP, but without the formation of β-PP. This article presents a new applicable method to modify CC inorganic fillers with a green modifier and promote their dispersion in PP. The obtained PP nanocomposite simultaneously achieved enhanced mechanical strength and impact toughness even with high content of nanofillers, highlighting bright perspective in high-performance, economical, and eco-friendly polymer-inorganic nanocomposites.

scholarly journals CuCr2O4@rGO Nanocomposites as High-Performance Cathode Catalyst for Rechargeable Lithium–Oxygen Batteries

2017 ◽  
Vol 10 (2) ◽  
Author(s):  
Jiandi Liu ◽  
Yanyan Zhao ◽  
Xin Li ◽  
Chunge Wang ◽  
Yaping Zeng ◽  
...  
Keyword(s):  
High Performance ◽  
Cathode Catalyst ◽  
Lithium Oxygen Batteries

scholarly journals Effect of an auxiliary acceptor on D–A–π–A sensitizers for highly efficient and stable dye-sensitized solar cells

2016 ◽  
Vol 4 (33) ◽  
pp. 12865-12877 ◽  
Author(s):  
Yuting Gao ◽  
Xing Li ◽  
Yue Hu ◽  
Yeli Fan ◽  
Jianyong Yuan ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Metal Free ◽  
Dye Sensitized ◽  
Highly Efficient ◽  
Photovoltaic Technologies ◽  
Sensitized Solar Cells

As one of the promising photovoltaic technologies, high performance metal-free dye-sensitized solar cells (DSSCs) have been explored due to the fact that they can be potentially produced using low-cost materials, their color can be tuned and they exhibit reasonable stability.

High-performance, ultra-flexible and transparent embedded metallic mesh electrodes by selective electrodeposition for all-solid-state supercapacitor applications

2017 ◽  
Vol 5 (19) ◽  
pp. 9032-9041 ◽  
Author(s):  
Yan-Hua Liu ◽  
Jian-Long Xu ◽  
Su Shen ◽  
Xin-Lei Cai ◽  
Lin-Sen Chen ◽  
...  
Keyword(s):  
Solid State ◽  
High Performance ◽  
Low Cost ◽  
Processing Methods ◽  
Electrodeposition Process ◽  
Metallic Mesh ◽  
Film Processing ◽  
First Time ◽  
Supercapacitor Applications

High-performance, ultra-flexible and transparent embedded metallic mesh electrodes were fabricatedvialow-cost selective electrodeposition process combined with inverted film-processing methods for the first time. Flexible and transparent all-solid-state supercapacitors were thus successfully constructed.

Topological Defect‐Rich Carbon as a Metal‐Free Cathode Catalyst for High‐Performance Li‐CO 2 Batteries

2021 ◽  
pp. 2101390
Author(s):  
Fenghui Ye ◽  
LeLe Gong ◽  
Yongde Long ◽  
Siddulu Naidu Talapaneni ◽  
Lipeng Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Topological Defect ◽  
Cathode Catalyst ◽  
Metal Free
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