In situ synthesizing C‐CuO composite for efficient photo‐thermal conversion and its application in solar‐driven interfacial evaporation

2020 ◽  
Author(s):  
Hongxia Cao ◽  
Shaokai Jiao ◽  
Sai Zhang ◽  
Jigui Xu ◽  
Hongyan Wang ◽  
...  
Keyword(s):  
Thermal Conversion

scholarly journals Chemical Modification as a Method of Improving Biocompatibility of Carbon Nonwovens

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3198
Author(s):  
Justyna Frączyk ◽  
Sylwia Magdziarz ◽  
Ewa Stodolak-Zych ◽  
Ewa Dzierzkowska ◽  
Dorota Puchowicz ◽  
...  
Keyword(s):  
Surface Modification ◽  
Cellular Response ◽  
Fiber Surface ◽  
Thermal Conversion ◽  
Cartilage Tissue ◽  
Polar Component ◽  
Nonwoven Fabrics ◽  
Biological Compatibility ◽  
Starting Point

It was shown that carbon nonwoven fabrics obtained from polyacrylonitrile fibers (PAN) by thermal conversion may be modified on the surface in order to improve their biological compatibility and cellular response, which is particularly important in the regeneration of bone or cartilage tissue. Surface functionalization of carbon nonwovens containing C–C double bonds was carried out using in situ generated diazonium salts derived from aromatic amines containing both electron-acceptor and electron-donor substituents. It was shown that the modification method characteristic for materials containing aromatic structures may be successfully applied to the functionalization of carbon materials. The effectiveness of the surface modification of carbon nonwoven fabrics was confirmed by the FTIR method using an ATR device. The proposed approach allows the incorporation of various functional groups on the nonwovens’ surface, which affects the morphology of fibers as well as their physicochemical properties (wettability). The introduction of a carboxyl group on the surface of nonwoven fabrics, in a reaction with 4-aminobenzoic acid, became a starting point for further modifications necessary for the attachment of RGD-type peptides facilitating cell adhesion to the surface of materials. The surface modification reduced the wettability (θ) of the carbon nonwoven by about 50%. The surface free energy (SFE) in the chemically modified and reference nonwovens remained similar, with the surface modification causing an increase in the polar component (ɣp). The modification of the fiber surface was heterogeneous in nature; however, it provided an attractive site of cell–materials interaction by contacting them to the fiber surface, which supports the adhesion process.

scholarly journals Self-Assembled 3D Flower-Like Hierarchical β-Ni(OH)2 Hollow Architectures and their In Situ Thermal Conversion to NiO

2009 ◽  
Vol 4 (6) ◽  
pp. 550-557 ◽  
Author(s):  
Lu-Ping Zhu ◽  
Gui-Hong Liao ◽  
Yang Yang ◽  
Hong-Mei Xiao ◽  
Ji-Fen Wang ◽  
...  
Keyword(s):  
Thermal Conversion ◽  
Self Assembled

A novel bifunctional microencapsulated phase change material loaded with ZnO for thermal energy storage and light–thermal energy conversion

2020 ◽  
Vol 4 (10) ◽  
pp. 5203-5214 ◽  
Author(s):  
Chaowei Huang ◽  
Qiuting Li ◽  
Yubin Yang ◽  
Sheng Wei ◽  
Rong Ji ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Thermal Conversion ◽  
Thermal Energy Conversion ◽  
Microencapsulated Phase Change Material ◽  
Polymer Shells ◽  
Change Material

Novel bifunctional microencapsulated PCMs were synthesized via in situ polymerization by introducing nano-ZnO into the polymer shells, which providing the microencapsulated PCMs with good light-thermal conversion properties and thermal stability.

scholarly journals Tunable Photodetectors via In Situ Thermal Conversion of TiS3 to TiO2

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 711 ◽  
Author(s):  
Foad Ghasemi ◽  
Riccardo Frisenda ◽  
Eduardo Flores ◽  
Nikos Papadopoulos ◽  
Robert Biele ◽  
...  
Keyword(s):  
2D Materials ◽  
Optoelectronic Devices ◽  
Thermal Conversion ◽  
Wide Bandgap ◽  
Common Source ◽  
Many Body ◽  
Two Dimensional Materials ◽  
Materials Research ◽  
Titanium Trisulfide

In two-dimensional materials research, oxidation is usually considered as a common source for the degradation of electronic and optoelectronic devices or even device failure. However, in some cases a controlled oxidation can open the possibility to widely tune the band structure of 2D materials. In particular, we demonstrate the controlled oxidation of titanium trisulfide (TiS3), a layered semicon-ductor that has attracted much attention recently thanks to its quasi-1D electronic and optoelectron-ic properties and its direct bandgap of 1.1 eV. Heating TiS3 in air above 300 °C gradually converts it into TiO2, a semiconductor with a wide bandgap of 3.2 eV with applications in photo-electrochemistry and catalysis. In this work, we investigate the controlled thermal oxidation of indi-vidual TiS3 nanoribbons and its influence on the optoelectronic properties of TiS3-based photodetec-tors. We observe a step-wise change in the cut-off wavelength from its pristine value ~1000 nm to 450 nm after subjecting the TiS3 devices to subsequent thermal treatment cycles. Ab-initio and many-body calculations confirm an increase in the bandgap of titanium oxysulfide (TiO2-xSx) when in-creasing the amount of oxygen and reducing the amount of sulfur.

scholarly journals Simple in situ synthesis of SiC nanofibers on graphite felt as a scaffold for improving performance of paraffin-based composite phase change materials

RSC Advances ◽  
2022 ◽  
Vol 12 (2) ◽  
pp. 878-887
Author(s):  
Xiao Li ◽  
Hao Wang ◽  
Xuening Yang ◽  
Xiaoguang Zhang ◽  
Bin Ma
Keyword(s):  
Thermal Properties ◽  
Phase Change ◽  
Phase Change Materials ◽  
Thermal Conversion ◽  
In Situ Synthesis ◽  
Flexible Design ◽  
Composite Phase Change Materials ◽  
Composite Phase Change Material ◽  
Change Material

The composite phase change material has excellent thermal properties, good photo-thermal conversion efficiency and flexible design in size, which produces a type of material for applications in solar and buildings energy storage.

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