scholarly journals Synthesis, modular composition, and electrochemical properties of lamellar iron sulfides

2020 ◽  
Vol 8 (31) ◽  
pp. 15834-15844 ◽  
Author(s):  
Noah E. Horwitz ◽  
Elena V. Shevchenko ◽  
Jehee Park ◽  
Eungje Lee ◽  
Jiaze Xie ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrochemical Properties ◽  
Iron Sulfide ◽  
Electrochemical Energy Storage ◽  
Iron Sulfides ◽  
New Class ◽  
Modular Composition ◽  
Electrochemical Energy

A new class of layered iron sulfide materials offers tunable composition and properties for electrochemical energy storage.

Phase-controlled synthesis of polymorphic MnO2 structures for electrochemical energy storage

2015 ◽  
Vol 3 (10) ◽  
pp. 5722-5729 ◽  
Author(s):  
Bosi Yin ◽  
Siwen Zhang ◽  
He Jiang ◽  
Fengyu Qu ◽  
Xiang Wu
Keyword(s):  
Energy Storage ◽  
Electrochemical Properties ◽  
Electrochemical Energy Storage ◽  
Controlled Synthesis ◽  
Different Types ◽  
Electrochemical Energy

MnO2 with α-, β- and δ-type structures were controllably synthesized. The electrochemical properties of the supercapacitors based on different types of MnO2 electrodes were investigated in detail.

scholarly journals Synthesis, Modular Composition, and Electrochemical Properties of Lamellar Iron SulfidesSynthesis, Modular Composition, and Electrochemical Properties of Lamellar Iron Sulfides

2020 ◽  
Author(s):  
Noah E. Horwitz ◽  
Elena V. Shevchenko ◽  
Jehee Park ◽  
Eungje Lee ◽  
Jiaze Xie ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Iron Sulfide ◽  
Complex Structure ◽  
Lamellar Spacing ◽  
Metal Chalcogenides ◽  
Iron Sulfides ◽  
Electrically Conductive ◽  
Comparable Performance ◽  
Transition Metal Chalcogenides ◽  
Modular Composition

Transition metal chalcogenides with layered structures have emerged as promising materials for energy storage, catalysis, and electronics, among other areas. We have identified a new layered phase of iron sulfide containing interlayer solvated cations. We present an optimized synthesis for the Li+-containing material from an Fe(III) xanthate complex. Structure and composition data indicate the material consists of poorly-ordered iron sulfide layers separated by solvated cations. The lamellar spacing in these materials can be tuned by changing the identity of the cation. Furthermore, the lamellar spacing can also be reversibly tuned by the degree of solvation of the material. The material is electrically conductive and can serve as a pseudocapacitor with comparable performance to commercial materials such as MnO<sub>2</sub>. Furthermore, these materials also show promise as lithium or sodium ion battery cathodes with good capacity and reversibility.

scholarly journals Structure and electrochemical properties of hierarchically porous carbon nanomaterials derived from hybrid ZIF-8/ZIF-67 bi-MOF coated cyclomatrix poly(organophosphazene) nanospheres

2020 ◽  
Vol 44 (11) ◽  
pp. 4353-4362
Author(s):  
Yutao Zhou ◽  
Alan M. Wemyss ◽  
Oliver B. Brown ◽  
Qianye Huang ◽  
Chaoying Wan
Keyword(s):  
Energy Storage ◽  
Electrochemical Properties ◽  
Porous Carbon ◽  
Carbon Nanostructures ◽  
Carbon Nanomaterials ◽  
Electrochemical Energy Storage ◽  
Hierarchically Porous ◽  
Metal Elements ◽  
Energy Storage Applications ◽  
Electrochemical Energy

Hierarchically porous carbon nanostructures with intrinsically doped heteroatoms and metal elements are attractive for electrochemical energy storage applications.

scholarly journals Synthesis, Modular Composition, and Electrochemical Properties of Lamellar Iron SulfidesSynthesis, Modular Composition, and Electrochemical Properties of Lamellar Iron Sulfides

2020 ◽  
Author(s):  
Noah E. Horwitz ◽  
Elena V. Shevchenko ◽  
Jehee Park ◽  
Eungje Lee ◽  
Jiaze Xie ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Iron Sulfide ◽  
Complex Structure ◽  
Lamellar Spacing ◽  
Metal Chalcogenides ◽  
Iron Sulfides ◽  
Electrically Conductive ◽  
Comparable Performance ◽  
Transition Metal Chalcogenides ◽  
Modular Composition

Transition metal chalcogenides with layered structures have emerged as promising materials for energy storage, catalysis, and electronics, among other areas. We have identified a new layered phase of iron sulfide containing interlayer solvated cations. We present an optimized synthesis for the Li+-containing material from an Fe(III) xanthate complex. Structure and composition data indicate the material consists of poorly-ordered iron sulfide layers separated by solvated cations. The lamellar spacing in these materials can be tuned by changing the identity of the cation. Furthermore, the lamellar spacing can also be reversibly tuned by the degree of solvation of the material. The material is electrically conductive and can serve as a pseudocapacitor with comparable performance to commercial materials such as MnO<sub>2</sub>. Furthermore, these materials also show promise as lithium or sodium ion battery cathodes with good capacity and reversibility.

Carbothermal conversion of boric acid into boron-oxy-carbide nanostructures for high-power supercapacitors

2021 ◽  
Author(s):  
Dhanasekar Kesavan ◽  
Vimal Kumar Mariappan ◽  
Karthikeyan Krishnamoorthy ◽  
Sang-Jae Kim
Keyword(s):  
Energy Storage ◽  
Boric Acid ◽  
High Power ◽  
Electrochemical Energy Storage ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Carbothermal Method ◽  
Electrochemical Energy

In this study, we report a facile carbothermal method for the preparation of boron-oxy-carbide (BOC) nanostructures and explore their properties towards electrochemical energy storage devices.

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