Quantum Chemical Studies on the Structure and Performance Properties of 1,3,4,5-Tetranitropyrazole: A Stable New High Energy Density Molecule

2012 ◽  
Vol 37 (1) ◽  
pp. 52-58 ◽  
Author(s):  
Pasupala Ravi ◽  
Girish M. Gore ◽  
Surya P. Tewari ◽  
Arun K. Sikder
Keyword(s):  
Energy Density ◽  
Quantum Chemical ◽  
High Energy ◽  
High Energy Density ◽  
Performance Properties ◽  
Chemical Studies ◽  
Quantum Chemical Studies ◽  
And Performance

Quantum-chemical studies of the structure and performance properties of 5-(1,2,4-triazol-C-yl)tetrazol-1-ols

2015 ◽  
Vol 51 (2) ◽  
pp. 153-158 ◽  
Author(s):  
Xiao-Hong Li ◽  
Rui-Zhou Zhang ◽  
Hong-Ling Cui ◽  
Yong-Liang Yong
Keyword(s):  
Quantum Chemical ◽  
Performance Properties ◽  
Chemical Studies ◽  
Quantum Chemical Studies ◽  
And Performance

Synthesis and Performance of Strained Multicyclic Hydrocarbons as Highly Potential High-Energy-Density Fuels

2021 ◽  
Author(s):  
Chi Ma ◽  
Chengxiang Shi ◽  
Yakun Liu ◽  
Lun Pan ◽  
Xiangwen Zhang ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
And Performance

scholarly journals Revisiting Olivine Phosphate and Blend Cathodes in Lithium Ion Batteries for Electric Vehicles

2021 ◽  
Author(s):  
Yujing Bi ◽  
Deyu Wang
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Electric Vehicles ◽  
Technology Development ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
And Performance ◽  
Battery Technology ◽  
Olivine Phosphate

As electric vehicle market growing fast, lithium ion batteries demand is increasing rapidly. Sufficient battery materials supplies including cathode, anode, electrolyte, additives, et al. are required accordingly. Although layered cathode is welcome in high energy density batteries, it is challenging to balance the high energy density and safety beside cost. As consequence, olivine phosphate cathode is coming to the stage center again along with battery technology development. It is important and necessary to revisit the olivine phosphate cathode to understand and support the development of electric vehicles utilized lithium ion batteries. In addition, blend cathode is a good strategy to tailor and balance cathode property and performance. In this chapter, blend cathode using olivine phosphate cathode will be discussed as well as olivine phosphate cathode.

scholarly journals Development of High-Energy-Density Liquid Aerospace Fuel: A Perspective

2021 ◽  
Author(s):  
Jiaorong Nie ◽  
Tinghao Jia ◽  
Lun Pan ◽  
Xiangwen Zhang ◽  
Ji-Jun Zou
Keyword(s):  
Energy Density ◽  
Life Quality ◽  
High Energy ◽  
High Energy Density ◽  
Jet Fuels ◽  
Human Beings ◽  
Flight Range ◽  
And Performance ◽  
Liquid Propellants

AbstractAerospace aircraft has significantly improved the life quality of human beings and extended the capability of space explosion since its appearance in 1903, in which liquid propellants or fuels provide the key power source. For jet fuels, its property of energy density plays an important role in determining the flight range, load, and performance of the aircraft. Therefore, the design and fabrication of high-energy-density (HED) fuels attract more and more attention from researchers all over the world. Herein, we briefly introduce the development of liquid jet fuels and HED fuels and demonstrate the future development of HED fuels. To further improve the energy density of fuel, the approaches of design and construction of multi-cyclic and stained molecule structures are proposed. To break through the density limit of hydrocarbon fuels, the addition of energetic nanoparticles in HED fuels to produce nanofluid or gelled fuels may provide a facile and effective method to significantly increase the energy density. This work provides the perspective for the development of HED fuels for advanced aircrafts.

scholarly journals Design and performance characterisation of the HAPG von Hámos Spectrometer at the High Energy Density Instrument of the European XFEL

2020 ◽  
Vol 15 (11) ◽  
pp. P11033-P11033
Author(s):  
T.R. Preston ◽  
S. Göde ◽  
J.-P. Schwinkendorf ◽  
K. Appel ◽  
E. Brambrink ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
And Performance

scholarly journals Structural and stereoelectronic insights into oxygenase-catalyzed formation of ethylene from 2-oxoglutarate

2017 ◽  
Vol 114 (18) ◽  
pp. 4667-4672 ◽  
Author(s):  
Zhihong Zhang ◽  
Tristan J. Smart ◽  
Hwanho Choi ◽  
Florence Hardy ◽  
Christopher T. Lohans ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carboxylic Acid ◽  
Pseudomonas Syringae ◽  
Ethylene Production ◽  
Quantum Chemical ◽  
High Energy ◽  
Acid Oxidase ◽  
Biochemical Studies ◽  
Chemical Studies ◽  
Quantum Chemical Studies

Ethylene is important in industry and biological signaling. In plants, ethylene is produced by oxidation of 1-aminocyclopropane-1-carboxylic acid, as catalyzed by 1-aminocyclopropane-1-carboxylic acid oxidase. Bacteria catalyze ethylene production, but via the four-electron oxidation of 2-oxoglutarate to give ethylene in an arginine-dependent reaction. Crystallographic and biochemical studies on the Pseudomonas syringae ethylene-forming enzyme reveal a branched mechanism. In one branch, an apparently typical 2-oxoglutarate oxygenase reaction to give succinate, carbon dioxide, and sometimes pyrroline-5-carboxylate occurs. Alternatively, Grob-type oxidative fragmentation of a 2-oxoglutarate–derived intermediate occurs to give ethylene and carbon dioxide. Crystallographic and quantum chemical studies reveal that fragmentation to give ethylene is promoted by binding of l-arginine in a nonoxidized conformation and of 2-oxoglutarate in an unprecedented high-energy conformation that favors ethylene, relative to succinate formation.

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