Energy Scavenging Luminescent Piezo Fabrics: Small Silicon Dots Enable Big Electrical Outputs

2021 ◽  
Author(s):  
Zhou Peng ◽  
Jiaqi Chen ◽  
Chuanfeng Wang ◽  
Wei Li ◽  
Binbin Zhang ◽  
...  
Keyword(s):  
Materials Design ◽  
Energy Scavenging ◽  
The Earth ◽  
Earth Abundant ◽  
Silicon Based ◽  
Modern Technologies

Modern technologies are built on the earth-abundant silicon. In this regard, the emerging autonomous micro/nanosystems urgently need to be compatible with the existing silicon-based infrastructure in terms of materials design...

The research study in the convergence of the results of processing radar images Sentinel-1A with field observations of agricultural sites

2019 ◽  
Vol 950 (8) ◽  
pp. 52-58
Author(s):  
D.V. Mozer ◽  
Е.L. Levin ◽  
A.K. Satbergenova
Keyword(s):  
Satellite Remote Sensing ◽  
Satellite Images ◽  
Research Study ◽  
High Accuracy ◽  
Agricultural Fields ◽  
Field Observations ◽  
Radar Images ◽  
The Earth ◽  
Radar Satellite ◽  
Modern Technologies

The manuscript discusses how to monitor the condition of seedlings on agricultural fields planted with winter wheat, fodder maize and areas of fir forest located in the Freudenstadt district of Baden-Wuerttemberg in Germany. To solve the range of agricultural problems , they often use modern technologies such as satellite remote sensing of the Earth. The paper displays the monitoring results of the Sentinel-1A radar satellites scenes, as well as visual spectrum imagery of field observations are presented when leaving directly to terrain segments. The processing deployed data chain, consisting of 11 Sentinel-1A scenes acquired in the timefrane from March to November 2018. Specifically, the SNAP Sentinel Toolboxes software was used to process the radar satellite images Sentinel-1А, the. Based on the the research outcomes the Committee of Agriculture of the Freudenstadt district is able to predict the yield amount with high accuracy due to good data convergence. According to the study, the following three important problems can be resolved by means of Sentinel-1A imagery

scholarly journals Sustainable Hydrogenation of Nitroarenes to Anilines with Highly Active In-Situ Generated Copper Nanoparticles

2020 ◽  
Author(s):  
Fatma Pelin Kinik ◽  
Tu Ngugen ◽  
Mounir Mensi ◽  
Christopher Ireland ◽  
Kyriakos Stylianou ◽  
...  
Keyword(s):  
Ambient Pressure ◽  
Hydrogenation Reaction ◽  
Hydrogen Gas ◽  
Proof Of Concept ◽  
Drug Molecules ◽  
Highly Active ◽  
The Earth ◽  
Earth Abundant ◽  
Stability Issues

<div> <div> <div> <p>Metal nanoparticles (NPs) are usually stabilized by a capping agent, a surfactant, or a support material, to maintain their integrity. However, these strategies can impact their intrinsic catalytic activity. Here, we demonstrate that the in-situ formation of copper NPs (Cu0NPs) upon the reduction of the earth-abundant Jacquesdietrichite mineral with ammonia borane (NH3BH3, AB) can provide an alternative solution for stability issues. During the formation of Cu0NPs, hydrogen gas is released from AB, and utilized for the reduction of nitroarenes to their corresponding anilines, at room temperature and under ambient pressure. After the nitroarene-to-aniline conversion is completed, regeneration of the mineral occurs upon the exposure of Cu0NPs to air. Thus, the hydrogenation reaction can be performed multiple times without the loss of the Cu0NPs’ activity. As a proof-of-concept, the hydrogenation of drug molecules “flutamide” and “nimesulide” was also performed and isolated their corresponding amino-compounds in high selectivity and yield. </p> </div> </div> </div>

scholarly journals Discovery of a ternary pseudobrookite phase in the earth-abundant Ti–Zn–O system

2016 ◽  
Vol 45 (4) ◽  
pp. 1572-1581 ◽  
Author(s):  
Nicola H. Perry ◽  
Vladan Stevanovic ◽  
Linda Y. Lim ◽  
Thomas O. Mason
Keyword(s):  
Experimental Approach ◽  
Chemical System ◽  
The Earth ◽  
System P ◽  
Earth Abundant

We apply a combined theoretical and experimental approach to the search for “missing”, stable materials within the ternary Zn–Ti–O chemical system, leading to the discovery of a new pseudobrookite phase, ZnxTi3−xo5−δ.

Boosting the photocatalytic activity of graphite carbon nitride by designing novel MoS2–transition metal heterojunction cocatalysts

2019 ◽  
Vol 7 (42) ◽  
pp. 13211-13217 ◽  
Author(s):  
Kui Li ◽  
Ye-Zhan Lin ◽  
Yu Zhang ◽  
Mei-Ling Xu ◽  
Ling-Wang Liu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Transition Metal ◽  
Synergistic Effect ◽  
Carbon Nitride ◽  
Photocatalytic Performance ◽  
The Earth ◽  
Earth Abundant

MoS2–transition metal heterojunctions were adopted as cocatalysts on the earth-abundant g-C3N4 and displayed a synergistic effect on improving the photocatalytic performance.

Processing and Thermoelectric Properties of New Si-/ Se-/ Sn-Based Intermetallics

2016 ◽  
Vol 879 ◽  
pp. 2131-2137
Author(s):  
Wilfried Wunderlich ◽  
Masashi Sato ◽  
Yoshihito Matsumura
Keyword(s):  
Thermoelectric Properties ◽  
Driving Force ◽  
Intermetallic Phase ◽  
Intermetallic Alloys ◽  
Arc Melting ◽  
The Earth ◽  
Earth Abundant ◽  
First Time ◽  
New Si ◽  
Powder In Tube

Global warming is the driving force for developing new functional thermoelectric generators based on new materials which contain at least one of the elements Si, Se, or Sn. We describe four processing methods and their characterization by SEM and thermoelectric properties. The earth-abundant Mg2Si requires the method of cyclic hydrogen loading, which has two advantages: It suppresses the oxide formation, and promotes the driving force for formation of the intermetallic phase. While the clathrate BaCuSi and the Half-Heusler alloy (TiZr)NiSn, as most intermetallic alloys, can economically be produced by arc-melting, the Se-alloys CuTiSe and CuFeSe need to be processed by the powder-in-tube method and their Seebeck-voltage measurements up to +/- 0.04 mV/K and output power of 4 μW at ΔT= 400 K are reported here for the first time.

Titanium catalysis for the synthesis of fine chemicals – development and trends

2020 ◽  
Vol 49 (19) ◽  
pp. 6947-6994 ◽  
Author(s):  
Manfred Manßen ◽  
Laurel L. Schafer
Keyword(s):  
Transition Metal ◽  
Industrial Processes ◽  
Fine Chemicals ◽  
The Earth ◽  
The Future ◽  
Earth Abundant

Atlas as a Titan(ium) is holding the earth-abundant chemistry world. Titanium is the second most abundant transition metal, is a key player in important industrial processes (e.g. polyethylene) and shows much promise for diverse applications in the future.

scholarly journals Photo-Electrochemical Oxygen Evolution Reaction by Biomimetic CaMn2O4 Catalyst

2019 ◽  
Vol 9 (11) ◽  
pp. 2196
Author(s):  
Ankita Gagrani ◽  
Mohammed Alsultan ◽  
Gerhard F. Swiegers ◽  
Takuya Tsuzuki
Keyword(s):  
Control Sample ◽  
Structural Similarity ◽  
Oxygen Evolving Complex ◽  
New Class ◽  
Irregular Shapes ◽  
The Earth ◽  
Earth Abundant ◽  
The Difference ◽  
Oxygen Evolving ◽  
Electrochemical Oxygen

Calcium manganese oxide catalysts are a new class of redox catalysts with significant importance because of their structural similarity to natural oxygen-evolving complex in plant cells and the earth-abundant elemental constituents. In the present study, the photo-electrocatalytic properties of CaMn2O4 in water-splitting were investigated. CaMn2O4 powders with irregular shapes and nanowire shapes were synthesised using mechanochemical processing and a hydrothermal method, respectively. The anode in a photo-electrochemical cell was fabricated by embedding CaMn2O4 powders within polypyrrole. The results showed that CaMn2O4 induced a higher dark and light current in comparison to the control sample (polypyrrole alone). CaMn2O4 nanowires exhibited higher dark and light current in comparison to irregular-shaped CaMn2O4 powders. The difference was attributable to the higher surface area of nanowires compared to the irregular-shaped particles, rather than the difference in exposed crystal facets.

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