14 Result(s)

Article

Influence of Net Do** Concentration on Carrier Lifetime in 4H-SiC Substrates

Lightly nitrogen-doped (N-doped) and vanadium-doped (V-doped) 4H-SiC single crystals grown by physical vapor transport were used to investigate the effect of net do** concentration on carrier lifetime. The c...

Hongyu Shao, **anglong Yang, Desheng Wang, **aomeng Li… in Journal of Electronic Materials (2024)

Article

Hot-zone design and optimization of resistive heater for SiC single crystal growth

In recent years, SiC single crystal growth technology has been developed toward larger size and thickness to reduce the cost of SiC-based power devices. Resistance heating has gradually become a hot spot for r...

**nglong Wang, Xuejian **e, Wancheng Yu, **anglong Yang… in Journal of Materials Science (2024)

Article

The preparation of bimetallic cerium/copper organic framework-derived CeCuO_x/C NH₃-SCR catalysts

The bimetallic Ce/Cu-MOF was synthesized by the room temperature hydrothermal method, and then the CeCuO_x/C catalyst was obtained by in-situ pyrolysis method under nitrogen atmosphere. Moreover, their catalytic p...

Ruichao Yang, Zhifang Li, Jiao Zhao, **xing Cui… in Journal of Materials Science (2024)

Article

A quasi-solid asymmetric supercapacitor based on MnO₂-coated and N-doped pinecone porous carbon

Porous carbon is considered as one of the most promising electrode materials for supercapacitors. In this work, we report a simple two-step preparation of porous carbon materials based on MnO₂-coated and N-doped ...

Zhiwei Li, Ruilan Wang, Rui Zhong… in Journal of Materials Science: Materials in… (2022)

Article

Novel electrode design of three-dimensional carbon foam modified with MnO₂ nanosheet arrays for high-performance quasi-solid supercapacitor

In recent years, as a flexible electrode material, melamine foam has attracted more and more attention from researchers in the field of wearable energy storage devices. In addition, certain components are load...

Jiawei Wu, Ruilan Wang, Rui Zhong… in Journal of Materials Science: Materials in… (2021)

Article

Polyaniline-supported Al-doped MnO₂@carbon cloth-based electrode material for quasi-solid-state flexible supercapacitor

As one of the most promising electrode materials for supercapacitors, MnO₂ has the problems of low voltage window and poor conductivity. It has been shown that Al-doped MnO₂ can effectively improve the voltage wi...

Jiamin Zeng, Ruilan Wang, Mengyao Xu… in Journal of Materials Science: Materials in… (2021)

Article

A high energy density flexible symmetric supercapacitor based on Al-doped MnO₂ nanosheets @ carbon cloth electrode materials

The drawback of traditional capacitors with low energy density forces people to develop high-performance supercapacitor materials. Herein, the Al-doped MnO₂ @ carbon cloth is selected as the ideal electrode mater...

Mengyao Xu, Ning Fu, **aodong Wang… in Journal of Materials Science: Materials in… (2020)

Article

Three-dimensional ordered hollow sphere composite Pt/TiO₂-ZrO₂: enhanced performance of photocatalytic degradation and photocatalytic hydrogen evolution

In this paper, a three-dimensional ordered hollow sphere (3DOH) structure composite Pt/TiO₂-ZrO₂ was prepared by using polystyrene (PS) colloidal spheres as the template and combining with two-step vacuum impregn...

Mingze An, Li Li, **g**g Zhang, Lijie Zhao… in Journal of Nanoparticle Research (2019)

Article

Preparation of activated carbon nanotube foams loaded with Ag-doped TiO₂ for highly efficient photocatalytic degradation under UV and visible light

Titanium oxide (TiO₂) has been widely investigated as a photocatalytic material for degradation of organic pollutant in waste water. However, nanosized granular TiO₂ nanoparticles are hard to be recycled and re-u...

Yuheng Zhang, Mindong Gong, ** Liu, Lijun Ji… in Journal of Materials Science (2019)

Article

Facile preparation of asymmetric phthalocyanine/multi-walled carbon nanotube hybrid material by in situ click chemistry

The asymmetrical zinc phthalocyanine–multiwalled carbon nanotube hybrid material (aZnPc–MWCNT) were successfully prepared by in situ click chemistry of 4-(m-tolyloxygen)-5-nitrophthalonitrile and 4-azide-phtha...

Zhenglong Yang, **g Yu, Kangyu Fu… in Journal of Materials Science: Materials in… (2018)

Article

Anomalous Resistivity in Vanadium-Doped Semi-Insulating 4H-SiC Wafers

The resistivities of vanadium-doped semi-insulating 4H-SiC wafers were measured by a contactless resistivity measurement system. Anomalous resistivity was found in semi-insulating 4H-SiC wafer. Raman spectra o...

**anglong Yang, Kun Yang, Yingxin Cui… in Acta Metallurgica Sinica (English Letters) (2014)

Article

Wetting and reaction of molten La with poly- and mono-crystalline MgO at 1323 K

Wetting of poly- and mono-crystalline MgO substrates by molten La was investigated at 1323 K in a high vacuum using a modified sessile drop method. The wettability seems to depend mildly on the substrate orien...

Longlong Yang, ** Shen, **aoshuang Cong, Qichuan Jiang in Journal of Materials Science (2013)

Article

Preparation and photoconductivity study of azo nanoparticles via liquid phase surfactant-assisted reprecipitation

4,4′-bis(1′-Azo-2′-hydroxy-3′-naphthoyl-o-chloroanide) oxazole (AZO) nanoparticles in size of 40–60 nm were prepared by the method of liquid phase surfactant-assisted reprecipitation. The AZO nanoparticles wer...

Zhenglong Yang, Hongzheng Chen, Lei Cao, Mang Wang in Journal of Materials Science (2004)

Article

Coating of Silicon Nitride and its Colloidal Behavior

Qiang Tang, Zhipeng **e, **glong Yang, Yong Huang in Journal of Materials Science Letters (1998)