Products, Pathways, and Kinetics for Catalytic Hydrodenitrogenation of Quinoline in Hydrothermal Condition

2022 ◽  
pp. 105509
Author(s):  
Dan Xie ◽  
Xu Liu ◽  
Lv heng ◽  
Yang Guo
Keyword(s):  
Hydrothermal Condition

Rapid Synthesis of Mesoporous Nickel Phosphates under Microwave Assisted Hydrothermal Condition

2012 ◽  
Vol 27 (5) ◽  
pp. 501-506
Author(s):  
Xu-Ying LI ◽  
Juan TAN ◽  
Jian-Hua YANG ◽  
Jing LIU ◽  
Fei YANG
Keyword(s):  
Hydrothermal Condition ◽  
Rapid Synthesis ◽  
Microwave Assisted ◽  
Nickel Phosphates

A terbium(III) lanthanide-organic framework as selective and sensitive iodide/bromide sensor in aqueous medium

2021 ◽  
Author(s):  
Lanjun Liu ◽  
Mengyao Zhang ◽  
Qingzhong Guo ◽  
Zhanhui Zhang ◽  
Junfang Guo
Keyword(s):  
Aqueous Medium ◽  
Hydrothermal Condition ◽  
Isophthalic Acid ◽  
Luminescent Sensor ◽  
Iodide Ion ◽  
Organic Framework

A potent luminescent sensor for the detection of iodide ion was developed based on a terbium(III)-based lanthanide–organic framework [Tb(cpia)(H2O)2]n‧nH2O (1), which was prepared under hydrothermal condition using 5-(4-carboxyphenoxy)-isophthalic acid (H3cpia)...

scholarly journals Fabrication of Flexible Piezoelectric PZT/Fabric Composite

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Caifeng Chen ◽  
Daiwei Hong ◽  
Andong Wang ◽  
Chaoying Ni
Keyword(s):  
Composite Material ◽  
Glass Fiber ◽  
Piezoelectric Materials ◽  
Hydrothermal Condition ◽  
Curved Surfaces ◽  
Piezoelectric Crystal ◽  
Optimum Conditions ◽  
Sensor Actuator ◽  
Fabric Composite ◽  
Complicated Conditions

Flexible piezoelectric PZT/fabric composite material is pliable and tough in nature which is in a lack of traditional PZT patches. It has great application prospect in improving the sensitivity of sensor/actuator made by piezoelectric materials especially when they are used for curved surfaces or complicated conditions. In this paper, glass fiber cloth was adopted as carrier to grow PZT piezoelectric crystal particles by hydrothermal method, and the optimum conditions were studied. The results showed that the soft glass fiber cloth was an ideal kind of carrier. A large number of cubic-shaped PZT nanocrystallines grew firmly in the carrier with a dense and uniform distribution. The best hydrothermal condition was found to be pH 13, reaction time 24 h, and reaction temperature 200°C.

Preparation of Hydroxyapatite/Chitosan Biological Coatings on Carbon/Carbon Composites

2010 ◽  
Vol 434-435 ◽  
pp. 502-505
Author(s):  
Ying Hua Li ◽  
Li Yun Cao ◽  
Jian Feng Huang ◽  
Xie Rong Zeng
Keyword(s):  
Heat Treatment ◽  
Electrophoretic Deposition ◽  
Isopropyl Alcohol ◽  
Raw Materials ◽  
Composite Coatings ◽  
Thermal Conditions ◽  
Hydrothermal Condition ◽  
Subsequent Heat Treatment ◽  
Carbon Composites ◽  
Deposition Voltage

Hydroxyapatite/Chitosan (HAp/CS) bio-coatings were prepared on the surface of carbon/ carbon (C/C) composites by hydrothermal electrophoretic deposition, using sonochemical process resulted HAp nanoparticles, isopropyl alcohol and chitosan as raw materials. The influences of hydro- thermal conditions and deposition voltage on the microstructures and morphologies of the as-prepared coatings were investigated. It was shown that homogenous and dense HAp/CS coatings on C/C composites are obtained by hydrothermal electrophoretic deposition. With the increase of deposition voltage, density and homogeneity of the as-prepared HAp/CS composite coatings are well improved. Due to the growth of HAp nanoparticles in the hydrothermal condition, the subsequent heat treatment of the HAp/CS coatings is not needed.

The Effects of Hydrothermal Ageing on the Crushing Behavior of Glass/Epoxy Composite Pipes

2015 ◽  
Vol 819 ◽  
pp. 411-416
Author(s):  
S.N. Fitriah ◽  
M.S. Abdul Majid ◽  
R. Daud ◽  
M. Afendi ◽  
Z.S. Nazirah
Keyword(s):  
Composite Laminates ◽  
Testing Machine ◽  
Hydrothermal Condition ◽  
Compression Tests ◽  
Universal Testing ◽  
Failure Region ◽  
The Matrix ◽  
Glass Fibre Reinforced ◽  
Crushing Behavior ◽  
Composite Pipes

The paper discusses the crushing behavior of glass fibre reinforced epoxy (GRE) pipes under hydrothermal ageing condition. This study determines the behavior of the GRE pipes when subjected to different ageing periods and temperatures. Hydrothermal ageing has been found to cause degradation between resin and fibre interface thus causing the reduction in the strength of composite laminates. The pipes were subjected to hydrothermal condition to simulate and precipitate ageing by immersing the pipe samples in water at 80°C for 250, 500, and 1000 hours. Compression tests were carried out using Universal Testing Machine (UTM) for virgin condition and aged samples in accordance with ASTM D695 standard. The maximum force at the initial failure region is observed for each of the conditioned pipes. The results show that the strength of the matrix systems was considerably degraded due to the plasticization of the matrix system.

Luminescence Intensity Enhancement of Copper Doped Hydronium Alunite Synthesized under Hydrothermal Conditions Using Sulfates Solution

2014 ◽  
Vol 90 ◽  
pp. 127-132
Author(s):  
Yuichiro Kuroki ◽  
Takashi Hatsuse ◽  
Tomoichiro Okamoto ◽  
Masasuke Takata
Keyword(s):  
Crystal Structure ◽  
Luminescence Intensity ◽  
Single Phase ◽  
Elemental Sulfur ◽  
Nitrate Solution ◽  
Hydrothermal Condition ◽  
Copper Nitrate ◽  
Hydrothermal Conditions ◽  
Photoluminescence Peak ◽  
Blue Photoluminescence

A novel phosphor, copper doped hydronium alunite ((H3O)Al3(SO4)2(OH)6:Cu), exhibiting a blue photoluminescence peak at a wavelength of 420 nm was successfully synthesized from aluminum and copper sulfates solution under hydrothermal condition (240 °C, 60 min). The measurement of XRD revealed that the obtained products were single phase with a crystal structure of (H3O)Al3(SO4)2(OH)6. Luminescence intensity of (H3O)Al3(SO4)2(OH)6:Cu synthesized from sulfates solution was 6.2 times higher than that from an aluminum nitrate solution mixed with an elemental sulfur and a copper nitrate solution. The increase of luminescence intensity was resulted from an improvement of the crystallinity of (H3O)Al3(SO4)2(OH)6.

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