Porous carbon-coated NaTi2(PO4)3 with superior rate and low-temperature properties

2018 ◽  
Vol 6 (5) ◽  
pp. 2365-2370 ◽  
Author(s):  
Qiao Hu ◽  
Mufan Yu ◽  
Jiaying Liao ◽  
Zhaoyin Wen ◽  
Chunhua Chen
Keyword(s):  
Low Temperature ◽  
Porous Carbon ◽  
Carbon Coating ◽  
Hydrothermal Process ◽  
Carbon Coated

Nanosized porous carbon-coated NaTi2(PO4)3 (NTP) particles with superior rate and low-temperature properties are synthesized by a hydrothermal process combined with different carbon coating steps.

Thermal stresses in carbon-coated optical fibers at low temperature

1997 ◽  
Vol 12 (9) ◽  
pp. 2493-2498 ◽  
Author(s):  
Sham-Tsong Shiue ◽  
Wen-Hao Lee
Keyword(s):  
Thermal Stress ◽  
Low Temperature ◽  
Glass Fiber ◽  
Young’S Modulus ◽  
Optical Fibers ◽  
Poisson’S Ratio ◽  
Carbon Coating ◽  
Thermal Stresses ◽  
Poisson's Ratio ◽  
Carbon Coated

The thermal stresses in carbon-coated optical fibers at low temperature have been analyzed. The thermally induced lateral pressure in the glass fiber would produce microbending loss. In order to minimize such a microbending loss, the thickness, Young's modulus, and Poisson's ratio of the carbon coating should be decreased. On the other hand, the maximum thermal stress is the tangential stress in the carbon coating that occurs at the interface of the carbon coating and glass fiber. It was experimentally observed that if the maximum thermal stress is larger than the tensile strength of the carbon coating, the carbon coating will be broken along the axial direction. In order to minimize such a maximum thermal stress, the thickness of the carbon coating should be increased, but Young's modulus, thermal expansion coefficient, and Poisson's ratio of the carbon coating should be decreased. Finally, an optimal selection of the carbon coating for optical fiber is discussed.

Boosting the bifunctional electrocatalytic oxygen activities of CoOxnanoarrays with a porous N-doped carbon coating and their application in Zn–air batteries

2017 ◽  
Vol 5 (34) ◽  
pp. 17804-17810 ◽  
Author(s):  
Yongchao Hao ◽  
Yuqi Xu ◽  
Nana Han ◽  
Junfeng Liu ◽  
Xiaoming Sun
Keyword(s):  
Cobalt Oxide ◽  
Porous Carbon ◽  
Carbon Coating ◽  
High Efficiency ◽  
Catalytic Performance ◽  
Good Stability ◽  
Carbon Coated ◽  
Air Battery

A N-doped porous carbon coated cobalt oxide nanoarray electrode was prepared with excellent bifunctional oxygen catalytic performance, and demonstrated good stability and high efficiency in a Zn–air battery.

Low temperature x-ray microanalysis of frozen-hydrated tobacco leaves

1984 ◽  
Vol 42 ◽  
pp. 284-285
Author(s):  
S. Edith Taylor ◽  
Patrick Echlin ◽  
May McKoon ◽  
Thomas L. Hayes
Keyword(s):  
Low Temperature ◽  
Lemna Minor ◽  
Root Tips ◽  
Tobacco Leaves ◽  
X Ray ◽  
Whole Cells ◽  
Carbon Coated ◽  
The Right ◽  
Beam Currents ◽  
The University

Low temperature x-ray microanalysis (LTXM) of solid biological materials has been documented for Lemna minor L. root tips. This discussion will be limited to a demonstration of LTXM for measuring relative elemental distributions of P,S,Cl and K species within whole cells of tobacco leaves.Mature Wisconsin-38 tobacco was grown in the greenhouse at the University of California, Berkeley and picked daily from the mid-stalk position (leaf #9). The tissue was excised from the right of the mid rib and rapidly frozen in liquid nitrogen slush. It was then placed into an Amray biochamber and maintained at 103K. Fracture faces of the tissue were prepared and carbon-coated in the biochamber. The prepared sample was transferred from the biochamber to the Amray 1000A SEM equipped with a cold stage to maintain low temperatures at 103K. Analyses were performed using a tungsten source with accelerating voltages of 17.5 to 20 KV and beam currents from 1-2nA.

Selective hydrogenolysis of aryl ethers over a nitrogen-doped porous carbon supported Ni–CeO2 catalyst at low temperature

2021 ◽  
Author(s):  
Ming Jiang ◽  
Xiaopeng Chen ◽  
Linlin Wang ◽  
Jiezhen Liang ◽  
Xiaojie Wei
Keyword(s):  
Low Temperature ◽  
Porous Carbon ◽  
Nitrogen Doped ◽  
Selective Hydrogenolysis ◽  
Aryl Ethers ◽  
Supported Ni

The selective depolymerization of lignin into aromatics is a sustainable way to improve the economics of the overall biorefinery process.

Low-temperature fabrication of crystalline MnCoO spinel film on porous carbon paper for efficient oxygen evolution reaction

2021 ◽  
Author(s):  
Sunglun Kwon ◽  
Ha Eun Lee ◽  
Donghoon Han ◽  
Jong Hyeon Lee
Keyword(s):  
Thin Film ◽  
Carbon Fiber ◽  
Low Temperature ◽  
Oxygen Evolution ◽  
Porous Carbon ◽  
Oxygen Evolution Reaction ◽  
Carbon Paper ◽  
Carbon Fiber Paper

A thin film of MnxCo3−xO4 (MnCoO) nanocatalyst on a porous carbon fiber paper (CFP) electrode for efficient oxygen evolution reaction (OER).

A flexible lead-free piezoelectric nanogenerator based on vertically aligned BaTiO3 nanotube arrays on a Ti-mesh substrate

RSC Advances ◽  
2016 ◽  
Vol 6 (84) ◽  
pp. 81426-81435 ◽  
Author(s):  
Ermias Libnedengel Tsege ◽  
Gyu Han Kim ◽  
Venkateswarlu Annapureddy ◽  
Beomkeun Kim ◽  
Hyung-Kook Kim ◽  
...  
Keyword(s):  
Low Temperature ◽  
Titanium Oxide ◽  
Hydrothermal Process ◽  
Lead Free ◽  
Nanotube Arrays ◽  
Titanium Oxide Nanotubes ◽  
Vertically Aligned ◽  
Ti Mesh

A novel, flexible lead-free piezoelectric nanogenerator was developed using a uniform BaTiO3 film; synthesized by in situ conversion of titanium oxide nanotubes in a low temperature hydrothermal process.

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