scholarly journals Recent Developments and Future Challenges in Designing Rechargeable Potassium-Sulfur and Potassium-Selenium Batteries

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2791
Author(s):  
Suyeong Lee ◽  
Jun Lee ◽  
Jaekook Kim ◽  
Marco Agostini ◽  
Shizhao Xiong ◽  
...  
Keyword(s):  
Cathode Materials ◽  
Chemical Properties ◽  
Research Trends ◽  
Fundamental Science ◽  
Future Challenges ◽  
Recent Developments ◽  
Technological Developments ◽  
Practical Development ◽  
Substantial Interest ◽  
Potential Use

The use of chalcogenide elements, such as sulfur (S) and selenium (Se), as cathode materials in rechargeable lithium (Li) and sodium (Na) batteries has been extensively investigated. Similar to Li and Na systems, rechargeable potassium–sulfur (K–S) and potassium–selenium (K–Se) batteries have recently attracted substantial interest because of the abundance of K and low associated costs. However, K–S and K–Se battery technologies are in their infancy because K possesses overactive chemical properties compared to Li and Na and the electrochemical mechanisms of such batteries are not fully understood. This paper summarizes current research trends and challenges with regard to K–S and K–Se batteries and reviews the associated fundamental science, key technological developments, and scientific challenges to evaluate the potential use of these batteries and finally determine effective pathways for their practical development.

Recent Developments in Nanomedicines for Management of Various Health Issues Via Metabolism and Physico-Chemical Properties

2015 ◽  
Vol 16 (5) ◽  
pp. 389-396
Author(s):  
Mahmood Rasool ◽  
Muhammad Naseer ◽  
Arif Malik ◽  
Abdul Manan ◽  
Ikram Ullah ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Health Issues ◽  
Physico Chemical ◽  
Recent Developments

scholarly journals Insights on Molecular Characteristics of Hydrochars by 13C-NMR and Off-Line TMAH-GC/MS and Assessment of Their Potential Use as Plant Growth Promoters

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 1026 ◽  
Author(s):  
Laís G. Fregolente ◽  
João Vitor dos Santos ◽  
Giovanni Vinci ◽  
Alessandro Piccolo ◽  
Altair B. Moreira ◽  
...  
Keyword(s):  
Plant Growth ◽  
Phosphoric Acid ◽  
13C Nmr ◽  
Chemical Properties ◽  
Water Soluble ◽  
Molecular Characteristics ◽  
Initial Growth ◽  
Growth Promoters ◽  
Molecular Features ◽  
Potential Use

Hydrochar is a carbon-based material that can be used as soil amendment. Since the physical-chemical properties of hydrochar are mainly assigned to process parameters, we aimed at evaluating the organic fraction of different hydrochars through 13C-NMR and off-line TMAH-GC/MS. Four hydrochars produced with sugarcane bagasse, vinasse and sulfuric or phosphoric acids were analyzed to elucidate the main molecular features. Germination and initial growth of maize seedlings were assessed using hydrochar water-soluble fraction to evaluate their potential use as growth promoters. The hydrochars prepared with phosphoric acid showed larger amounts of bioavailable lignin-derived structures. Although no differences were shown about the percentage of maize seeds germination, the hydrochar produced with phosphoric acid promoted a better seedling growth. For this sample, the greatest relative percentage of benzene derivatives and phenolic compounds were associated to hormone-like effects, responsible for stimulating shoot and root elongation. The reactions parameters proved to be determinant for the organic composition of hydrochar, exerting a strict influence on molecular features and plant growth response.

Comprehensive View on Recent Developments in Hydrogen Evolution Using MoS2 on Si Photocathode: from Electronic to Electrochemical Aspects

2021 ◽  
Author(s):  
Anirudha Jena ◽  
Chih-Jung Chen ◽  
Ho Chang ◽  
Shu-Fen Hu ◽  
Ru-Shi Liu
Keyword(s):  
Hydrogen Evolution ◽  
Water Electrolysis ◽  
Clean Energy ◽  
Alternative Route ◽  
Comprehensive View ◽  
Recent Developments ◽  
Technological Developments

The generation of clean energy is necessary for future technological developments. The utilization of solar illumination to produce H2 from water electrolysis is an alternative route to address the issue....

scholarly journals Immunotherapy for prostate cancer: recent developments and future challenges

2014 ◽  
Vol 33 (2-3) ◽  
pp. 641-655 ◽  
Author(s):  
Michael T. Schweizer ◽  
Charles G. Drake
Keyword(s):  
Prostate Cancer ◽  
Future Challenges ◽  
Recent Developments

Recent advances in the application of noble metal nanoparticles in colorimetric sensors for lead ions

2021 ◽  
Author(s):  
H Singh ◽  
Amy Bamrah ◽  
Sanjeev Kumar ◽  
A Deep ◽  
M Khatri ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Chemical Properties ◽  
Lead Ions ◽  
Noble Metal Nanoparticles ◽  
Physical Chemical ◽  
Recent Advances ◽  
Recent Developments ◽  
Colorimetric Sensors

Recent developments in nanotechnology and engineering have produced a plethora of nanomaterials with amazing physical/chemical properties and enhanced sensing potential for various heavy metals in the environment. Noble metal nanoparticles...

Recent developments in dislocation pattern dynamics: Current opinions and perspectives

2018 ◽  
Vol 03 (03n04) ◽  
pp. 1840002 ◽  
Author(s):  
Dandan Lyu ◽  
Shaofan Li
Keyword(s):  
Crystal Plasticity ◽  
Materials Science ◽  
Pattern Dynamics ◽  
Future Challenges ◽  
Recent Developments ◽  
Computational Aspects ◽  
Stochastic Events ◽  
The Individual ◽  
Micro Structures ◽  
Dislocation Patterns

The development of crystal plasticity theory based on dislocation patterns dynamics has been an outstanding problem in materials science and condensed matter of physics. Dislocation is the origin of crystal plasticity, and it is both the individual dislocation behavior as well as the aggregated dislocations behaviors that govern the plastic flow. The interactions among dislocations are complex statistical and stochastic events, in which the spontaneous emergence of organized dislocation patterns formations is the most critical and intriguing events. Dislocation patterns consist of quasi-periodic dislocation-rich and dislocation poor regions, e.g. cells, veins, labyrinths, ladders structures, etc. during cyclic loadings. Dislocation patterns have prominent and decisive effects on work hardening and plastic strain localization, and thus these dislocation micro-structures are responsible to material properties at macroscale. This paper reviews the recent developments of experimental observation, physical modeling, and computer modeling on dislocation microstructure. In particular, we focus on examining the mechanism towards plastic deformation. The progress and limitations of different experiments and modeling approaches are discussed and compared. Finally, we share our perspectives on current issues and future challenges in both experimental, analytical modeling, and computational aspects of dislocation pattern dynamics.

scholarly journals Potential use of nir and visible spectroscopy to analyze chemical properties of thermally treated wood

2018 ◽  
pp. 0-0 ◽  
Author(s):  
Elaine Cristina Lengowski ◽  
Graciela Inês Bolzon de Muñiz ◽  
Umberto Klock ◽  
Silvana Nisgoski
Keyword(s):  
Chemical Properties ◽  
Treated Wood ◽  
Visible Spectroscopy ◽  
Potential Use ◽  
Thermally Treated

scholarly journals Tribology of 2D Nanomaterials: A Review

2020 ◽  
Author(s):  
Paul С. Uzoma ◽  
Huan Hu ◽  
Mahdi Khadem ◽  
Oleksiy V. Penkov
Keyword(s):  
High Performance ◽  
2D Materials ◽  
Chemical Properties ◽  
Solid Lubricants ◽  
Friction Behavior ◽  
Comprehensive Overview ◽  
Wear Rates ◽  
Recent Developments ◽  
Frictional Coefficients ◽  
Physical And Chemical

The exfoliation of graphene has opened a new frontier in material science with a focus on 2D materials. The unique thermal, physical and chemical properties of these materials have made them one of the choicest candidates in novel mechanical and nano-electronic devices. Notably, 2D materials such as graphene, MoS2, WS2, h-BN, and Black Phosphorus have shown outstanding lowest frictional coefficients and wear rates, making them attractive materials for high-performance nano-lubricants and lubricating applications. The objective of this work is to provide a comprehensive overview of the most recent developments in the tribological potentials of 2D materials. At first, the essential physical, wear, and frictional characteristics of the 2D materials including their production techniques are discussed. Subsequently, the experimental explorations and theoretical simulations of the most common 2D materials are reviewed in regards to their tribological applications such as their use as solid lubricants and surface lubricant nano-additives. The effects of micro/nano textures on friction behavior are also reviewed. Finally, the current challenges in tribological applications of 2D materials and their prospects are discussed.

scholarly journals Cultivated meat: recent technological developments, current market and future challenges

2021 ◽  
Vol 5 (1) ◽  
pp. e2021001
Author(s):  
Luiz Alberto Junior Letti ◽  
Susan Grace Karp ◽  
Carla Forte Maiolino Molento ◽  
Brigitte Sthepani Orozco Colonia ◽  
Raphael Aparecido Boschero ◽  
...  
Keyword(s):  
Future Challenges ◽  
Technological Developments
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