Shuhua Liang

National Engineering Research Center of Electromagnetic Radiation Control Materials

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Yihui Jiang

Ministry of Education of the People's Republic of China

Shaodong Sun

Xi'an University of Technology

Qing Yang

Xi’an University

Jie Cui

Xi'an University of Technology

Fei Cao

Xi'an University of Technology

Juntao Zou

Xi'an University of Technology

Xianhui Wang

Shougang (China)

Zhimao Yang

Xi'an Jiaotong University

Kexing Song

Henan Academy of Sciences

Xiuhua Guo

Henan University of Science and Technology

Cooperative Institutions

Xi'an University of Technology

174

Xi’an University

137

Chinese Academy of Sciences

Xi'an Jiaotong University

Ministry of Education of the People's Republic of China

Northwestern Polytechnical University

Shaanxi University of Science and Technology

Tsinghua University

National Engineering Research Center of Electromagnetic Radiation Control Materials

University of Chinese Academy of Sciences

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Twin engineering of photocatalysts: a minireview

Catalysis Science & Technology (2020)

Shaodong Sun Xiaochuan Zhang Jie Cui Qing Yang Shuhua Liang

Recent advances in twin engineering of photocatalysts have been highlighted in this mini-review, which is beneficial for the rational design and construction of novel highly-active photocatalysts.

Rational design

10.1039/d0cy00917b

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Citations (26)

Interruption Characteristics of Hybrid DC Circuit Breaker Based on Intelligent Mechanical Branch

2022 4th International Conference on Power and Energy Technology (ICPET) (2023)

Jianning Yin Xiaojian Lang Shuhua Liang Wei Zhang Jiandong Duan

In response to the increase in voltage level (>1500V) in photovoltaic power systems, a self-triggering hybrid DC circuit breaker is proposed to accommodate the fault interruption at higher voltage level. This circuit breaker utilizes the arc voltage generated by mechanical switch interruption to reach the conduction voltage of IGBT (Insulated Gate Bipolar Transistor) for commutation purposes. In order to reduce the fault current value flowing through the IGBT, the current detection device is connected in series with the mechanical switch branch to realize the rapid rise of the arc voltage at double times of the rated current, facilitating earlier conduction of the IGBT for commutation. As a result, the peak current in the transfer branch is effectively reduced, allowing for a decrease in the specifications and quantity of IGBTs used and avoiding current and voltage imbalance issues caused by the parallel connection of multiple IGBTs. The proposed hybrid DC circuit breaker based on intelligent mechanical branch provides research and design approach for better adaptation of hybrid DC circuit breakers to fault interruptions at high voltage levels.

Insulated-gate bipolar transistor

Commutation

Transient recovery voltage

10.1109/icpet59380.2023.10367490

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Mechanism Insight into an Unprecedented Dual Series‐Parallel Photocharge Separation in Quaternary Cu₂O Facet Junctions

Advanced Functional Materials (2022)

Jie Cui Xin Zhang Hongwei Huang Man Yang Bian Yang

Abstract Uncovering the contribution of anisotropic crystal facets in single‐crystalline photocatalysts is still a challenge in fundamental study. Here, the mechanism underlying facet junction‐dependent photocharge separation in polyhedral Cu 2 O is demonstrated, which is beneficial for understanding why 50‐faceted Cu 2 O exhibiting quaternary {100}/{110}/{111}/{522} facet junction possesses an enhanced photodegradation activity toward tetracycline than that of the 26‐faceted Cu 2 O exhibiting ternary {100}/{110}/{111} and 18‐faceted Cu 2 O exhibiting binary {100}/{110} facet junction. Density functional theory (DFT) calculations and selective photodeposition results confirm that hierarchical facet junctions are formed in a 50‐faceted Cu 2 O, which could be regarded as one parallel connection between binary {110}/{111} and ternary {110}/{522}/{100} series facet junction for conduction band minimum, and another parallel connection between binary {100}/{522} and ternary {111}/{110}/{522} series facet junction for valence band maximum, leading to an unprecedented dual series‐parallel transfer pathway for more efficiently improved photocharge separation. Hopefully, this study would be a beneficial guideline for scientific researchers currently concentrating on the facet junction engineering of polyhedral photocatalysts.

Facet (psychology)

10.1002/adfm.202111528

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Citations (35)

Study on aging strengthening and nano precipitates of Cu–Ni–Mn–Fe alloy

Materials Research Express (2020)

Juntao Zou Lin Shi Hao Shi Qiaoli Feng Shuhua Liang

Abstract This paper presents a systematic study of the precipitation strengthening mechanism in polybasic Cu–Ni–Mn–Fe alloy. The effect of aging treatment on the microstructure, morphologies and phase transition of the Cu–Ni–Mn–Fe alloy were analyzed and discussed using scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD) and differential scanning calorimeter (DSC), respectively. The θ-MnNi precipitates with a size of 50–100 nm, mainly formed during aging, were considered as the source of the aging strengthening. In addition, there is a semi-coherent between the plane (111) of the θ-MnNi precipitates and the plane (200) of the α -Cu matrix. The density of θ-MnNi precipitates increases with the increase of the aging time. The hardness, yield strength and ultimate tensile strength of the aged alloy increase from 127 to 366HB, 217 to 788 MPa, and 433 to 842 MPa, respectively, which is attributed to precipitation strengthening.

Precipitation hardening

10.1088/2053-1591/ab8b1d

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Microstructural investigation after vacuum electrical breakdown of the W-30wt.%Cu contact material

Vacuum (2018)

Qiuyu Chen Shuhua Liang Feng Wang Longchao Zhuo

Misorientation

Texture (cosmology)

Vacuum arc

10.1016/j.vacuum.2018.01.004

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Citations (22)

Engineering Of Bi2o3-Bioi 2d/2d S-Scheme Heterojunction For Efficient Photocatalytic Organic Hazards Removal

Jie Cui Ruotong Zhu Meiqi Ding Guoli Chen Shuhua Liang

10.2139/ssrn.4872993

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Citations (1)

Fabrication and properties of in situ heterogeneous Cu/TiB2 composites with a harmonic structure

Materials Letters (2019)

Yihui Jiang Dingwen Wang Yingqin Xu Fei Cao Shuhua Liang

Ductility (Earth science)

Strain hardening exponent

Hardening (computing)

Tensile testing

10.1016/j.matlet.2019.127032

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Citations (14)

Investigation on Arc Erosion Behavior of AgTiB_2 Composite

Precious Metals (2011)

Shuhua Liang

Novel AgTiB2 composites with different TiB2 contents and WO3 addition were prepared by high energy ball milling and powder metallurgy.The effects of TiB2 content and WO3 addition on the arc erosion behavior of AgTiB2 composite were investigated.The results show that an appropriate TiB2 content can disperse arc effectively.There are serious arc erosion and deep erosion pits on the surface of AgTiB2 composite with 0.13wt% TiB2,while the erosion pits become smaller and shallower when the content of TiB2 is 0.50wt%.However,excessive TiB2 addition deteriorates arc erosion resistance.WO3 addition can enhance the arc erosion resistance of Ag/1wt%TiB2 composites.

Powder Metallurgy

Electric arc

Plasma arc welding

Source

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Citations (1)

Amorphous TiO₂nanostructures: synthesis, fundamental properties and photocatalytic applications

Catalysis Science & Technology (2019)

Shaodong Sun Peng Song Jie Cui Shuhua Liang

In this review, we mainly highlight the advances made in the development of amorphous TiO₂nanostructures for photocatalysts. Some perspectives on the challenges and new direction are also discussed.

10.1039/c9cy01020c

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Citations (118)

Experiment and simulation analysis of surface structure for CuW contact after arc erosion

Materials Science and Technology (2014)

Y. L. Wang Shuhua Liang Zhenbao Li

As an electrical contact, CuW alloy tends to be eroded under high voltage arc, and cracks would appear on the surface of the contact. Arc erosion experiments under high voltage arc were implemented on CuW contact, and then the inner stresses were analysed with the finite element method. Results showed that the surface of the CuW contact was changed to graded structure, including tungsten, tungsten skeleton and CuW alloy, with the increase in arcing cycle, and microcracks initiated and then propagated into the depth mainly due to transverse stresses. During arcing, the temperature and induced thermal stress were improved because of the appearance of graded structure on the surface, and then the erosion and cracks were enhanced. Hence, the failure mechanism of CuW contact was revealed.

Electric arc

Contact area

Electrical contacts

10.1179/1743284714y.0000000518

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Citations (12)