Results 111 to 120 of about 26,388 (271)

Overview study of Space Power Technologies for the advanced energetics program [PDF]

Space power technologies are reviewed to determine the state-of-the-art and to identify advanced or novel concepts which promise large increases in performance. The potential for incresed performance is judged relative to benchmarks based on technologies
Gross, S., Millner, A., Neugebauer, M., Phillips, W., Powell, J., Schmidt, E., Taussig, R., Wolf, M., Woodcock, G.   +8 more
core   +1 more source

Etching‐Expanded Anode: A Method to Improve the Reduction Efficiency of Vacuum Thermal Reduction of Spent Anode to Spent Ternary Cathode

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Etch‐expanded lithium ion battery anode vacuum carbon thermal reduction lithium ion battery anode flow chart. Vacuum carbon thermal reduction has been widely studied for the recovery of ternary lithium batteries, and there are many choices for the type of carbon to be reduced in this method, such as expensive carbon nanotubes and inexpensive battery ...
Jun Li, Yang Tian, Bin Yang, Baoqiang Xu, Junxian Hu, Songli Wang   +5 more
wiley   +1 more source

Implementation and application of adaptive mesh refinement for thermochemical mantle convection studies [PDF]

, 2011
Numerical modeling of mantle convection is challenging. Owing to the multiscale nature of mantle dynamics, high resolution is often required in localized regions, with coarser resolution being sufficient elsewhere.
Leng, Wei, Zhong, Shijie
core  

Challenges and Advancements in High‐Nickel Layered Oxides Cathode Material for Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
As a representative high‐energy‐density cathode material for lithium‐ion batteries, NCM811 still encounters critical challenges. This review provides a comprehensive analysis of its failure mechanisms, summarizes recent modification strategies, and highlights the contributions of advanced characterization and simulation techniques to performance ...
Yunshan Zheng, Junfeng Li, Yijing Liu, Lanlan Feng, Wen Liu, LiLi Lin, Yiming Wang, Haoyang Peng, Jian Lu, Dong Zhou, Baohua Li   +10 more
wiley   +1 more source

Synthesis of Carbon Nanotubes From CO2 Enabled by Fe–Mo Bimetallic Catalysts via Effective CO2 Scavenging

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The tandem process involves CO2 methanation and CH4 pyrolysis for CNT synthesis. Unreacted CO2 and H2 from methanation oxidize Fe, suppressing CNT growth on Fe‐only catalysts. Incorporation of Mo into Fe/MgO forms Mo2C, which prevents Fe oxidation under CO2/H2 conditions and thereby enables CNT formation.
Eunchae Oh, Jaewon Jang, Yoon Kyeung Lee, Junghoon Yang, Byung‐Joo Kim, Jungpil Kim   +5 more
wiley   +1 more source

Energy Storage System in Microgrids: Challenges and Opportunities

Energy Science &Engineering, EarlyView.
Hybrid integration of multiple Energy Storage Systems (ESSs) within renewable‐powered microgrids enhances reliability, flexibility, and economic sustainability. Lithium‐ion batteries, flow batteries, hydrogen storage, and thermal systems complement each other through coordinated control via Energy Management Systems.
Mohamed G. Moh Almihat, Josiah L. Munda
wiley   +1 more source

Numerical Investigation of Dual Metal Hydride Bed Based Thermochemical Energy Storage System

SolarPACES Conference Proceedings
Thermochemical energy storage system is known for good thermal stability and high energy storage density. Metal hydride based thermochemical energy storage systems are reported to store thermal energy at higher temperatures.
Sumeet Kumar Dubey, K. Ravi Kumar, Vinay Tiwari, Umish Srivastva   +3 more
doaj   +1 more source

Synthesis of Carboxylic Cellulose Nanocrystals From Yellow Thatching Grass (Hyparrhenia filipendula) via Citric Acid Hydrolysis

Energy Science &Engineering, EarlyView.
Fractionation of yellow thatching grass using sodium hydroxide and deep eutectic solvent Carboxylated Cellulose nanocrystals (CNCs) were successfully synthesized via hydrolysis with 80 wt% citric acid at 120°C for 4 h Variations in CNC characteristics were observed based on the fractionation method used ABSTRACT Grass is an abundant and renewable ...
Fildah Ayaa, Michael Lubwama, Samuel Ayodele Iwarere, Michael Olawale Daramola, John Baptist Kirabira   +4 more
wiley   +1 more source

Redox‐Active Oxide/molten Salt Composites for Hybrid Thermal‐Chemical Energy Storage

Advanced Energy & Sustainability Research
Structurally stabilized composites are promising for using phase change materials in high‐temperature thermal energy storage (TES). However, conventional skeleton materials, which typically comprise 30–50 wt% of the composite, mainly provide sensible ...
Runxia Cai, Hilal Bektas, Saqlain Raza, Jackson Massey, Yuan Tian, Jun Liu, Fanxing Li   +6 more
doaj   +1 more source

Uses of lunar sulfur [PDF]

Sulfur and sulfur compounds have a wide range of applications for their fluid, electrical, chemical, and biochemical properties. Although known abundances on the Moon are limited (approximately 0.1 percent in mare soils), sulfur is relatively extractable
Heiken, G., Pettit, D., Vaniman, D.
core   +1 more source