Guorong Ji

Shanxi Science and Technology Department

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Yuming Tian

Taiyuan University of Science and Technology

Huilan Hao

Shanxi Science and Technology Department

Guomin Li

Taiyuan University of Science and Technology

Ming Feng

Shanxi Science and Technology Department

Baoshun Zhu

Shanxi Science and Technology Department

Xiaoqian Song

National Institute of Metrology

Yunfeng Gao

Affiliated Hospital of Chengde Medical College

Jiao Su

Changzhi Medical College

Linlin Ma

Beihua University

Fan Wang

Peking University

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Taiyuan University of Science and Technology

East China University of Science and Technology

Shanxi Science and Technology Department

Ministry of Agriculture and Rural Affairs

Central South University

Nanchang University

Nantong University

Peking University

Xiamen University

Chinese Academy of Sciences

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One-Pot Synthesis of Coal Gangue Derived Nicg Composite for Enhanced Microwave Absorption

Baoshun Zhu Yunfeng Gao Huilan Hao Guorong Ji Chao Yang

In the context of assisting to fulfil carbon peak and carbon neutralization, the Ni-loaded coal gangue composites (NiCG) were constructed using coal gangue (CG) as raw material to support the implementation of low-cost preparation for microwave absorption (MA) materials and resources recycling for CG. In this study, NiCG composites with the low density (1.67-1.82 g/cm3) were designed via a facile rotary evaporation method. The good MA performances were endowed due to the improvement of impedance matching and attenuation capacity resulting from Ni particles loading on CG matrix. In terms of NiCG700, the electromagnetic data demonstrated that the effective combination between magnetic and dielectric components exhibited enhanced MA performance. Its minimum reflection loss (RLmin) was measured to be -28.5 dB with a coating thickness of 3.0 mm, and the effective absorption bandwidth exceeded -10 dB reached up to 4.7 GHz at a coating thickness of 2.0 mm. It is believed that such NiCG composites with low-cost and lightweight will be a competitive candidate microwave absorber.

Gangue

10.2139/ssrn.4291831

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Citations (1)

Preparation and characterization of aluminum borate whiskers reinforced ceramics with MnO₂ addition

International Journal of Applied Ceramic Technology (2021)

Ming Feng Guorong Ji Yaqiao Wu Guomin Li Kaiyue Wang

Abstract Ceramics with aluminum borate whiskers (ABWs) were prepared from H 3 BO 3 and Al 2 O 3 reagent, with and without 6 wt% MnO 2 used as an addition. The microstructures, phase composition, and crystal structure of the ceramics were analyzed via scanning electron microscopy, energy dispersive spectroscopy, and X‐ray diffraction, respectively. The results show that MnO 2 is an effective addition for enhancing the flexural strength of ceramics. The MnO 2 could lead to the distortion of lattice, and improve the mechanical strength via a solid solution strengthening mechanism. Moreover, the content of H 3 BO 3 and the sintering temperature were also key factors in the manufacture of optimal ceramics. The ceramic made from 6 wt% MnO 2 addition, 25 wt% H 3 BO 3 , and sintered at 1200°C, showed the highest flexural strength of 88.5 (±1.9) MPa, and had a bulk density of 1.64 g/cm 3 and porosity of 44.2%.

10.1111/ijac.13992

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Secretory expression and scale-up production of recombinant human thyroid peroxidase via baculovirus/insect cell system in a wave-type bioreactor

Protein Expression and Purification (2018)

Ying Lou Guorong Ji Qin Liu Pengbo Wang Ruilin Zhang

Heterologous

Secretory protein

Thyroid peroxidase

10.1016/j.pep.2018.04.005

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Citations (8)

Sintering mechanism and properties of corundum-mullite duplex ceramic with MnO2 addition

Ceramics International (2022)

Ming Feng Yaqiao Wu Guorong Ji Yi Zhou Xiaojun Wang

Mullite

Corundum

10.1016/j.ceramint.2022.01.312

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Citations (14)

[Determination of danshensu and protocatechuic aldehyde in Guanxinning injections by reversed-phase high performance liquid chromatography].

Chinese Journal of Chromatography (2006)

Cao Dong Huang Xi-ru Weina Liu Yajun Yang Guorong Ji

Protocatechuic acid

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Citations (1)

Synthesis and characterization of reinforced bone china using Ulan feldspar as raw materials

Ceramics International (2022)

Ming Feng Yuming Tian Guorong Ji

Characterization

10.1016/j.ceramint.2022.06.159

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Citations (7)

The effect of MnO₂ additive on the microstructure and mechanical properties of magnesium aluminate spinel

International Journal of Applied Ceramic Technology (2024)

Guorong Ji Ming Feng Huilan Hao Yunfeng Gao Baoshun Zhu

Abstract In this study, varying amounts of MnO 2 up to 5 wt.% were added to magnesium aluminate spinel (MA) bodies using a solid‐state sintering method at 1200–1600°C. The effect of MnO 2 addition on the phase composition, microstructure, distribution of elements, and ionic valence of MA was investigated via X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, and X‐ray photoelectron spectroscopy, respectively. The results showed that Mg 2+ ions in MA crystals were replaced by Mn 2+ ions, resulting in the formation of the (Mg 1‐ x Mn x )Al 2 O 4 solid solution. The distorted crystal structures promoted the sintering reactions, and the mechanical characteristics of MA were greatly improved by the solid solution strengthening process. When the additive amount of MnO 2 was 5 wt.% and the sintered temperature reached at 1600°C, excess manganese ions hardly dissolved into the lattice of MA. And these ions were only distributed at the grain boundaries of MgAl 2 O 4 , forming a “barrier” that hindered the migration and diffusion of particles, thereby suppressing the sintering process and weakening the mechanical strength of MA.

Aluminate

10.1111/ijac.14907

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A Sustainable and Low-Cost Route to Design Feni Alloy/Carbon-Decorated Coal Fly Ash with Enhanced Microwave Absorption

Baoshun Zhu Yunfeng Gao Chao Yang Huilan Hao Guorong Ji

The recycle of coal fly ash (CFA) is of momentous value to relieve the growing levels of the serious environment pollution. Herein, light-weight and low-cost microwave absorption (MA) materials CFA based composites assisted by carbon and FeNi alloy (FeNi/C-CFA) were constructed by an impregnation-carbonization process. The actions of the loading of carbon network and Fe/Ni species distributed in the CFA matrix, and the MA performances of FeNi/C-CFA composites were assessed in detail. The results showed that the FeNi/C-CFA with wrapping structure exhibited the minimum reflection loss (RLmin) of -39.2 dB with the coating thickness of 3.5 mm, while the effective absorption bandwidth (EAB) was measured to be 4.8 GHz (10.6-15.4 GHz) at a coating thickness of 2.0 mm. Their favorable MA performances were mainly from combined actions of the unique morphologies, good impedance matching and improving attenuation characteristics. Thus, these MA materials recycling from solid waste CFA may be a potential candidate for eliminating electromagnetic pollution along with the source abundance, low-cost, lightweight and easy preparation.

Reflection loss

Carbon fibers

10.2139/ssrn.4347163

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Measurement of total flavone contents in lotus leaf by colorimetry

Hebei Yike Daxue xuebao (2004)

Shuyan Fan Xiaofang Cao Shuping Liu Haini Hou Guorong Ji

To carry on a reaction between the extraction of total flavone in lotus leaf and the system of KAc-AlCl_(3), determined by colorimetry. Results The average content of total flavone in lotus leaf is 5.08%, with an average recovery of 101.2% and relative standard deviation of 2.41%. Conslucsion This method is simple, easy to learn, and with good reproducibility.

Colorimetry

Lotus effect

Relative standard deviation

Flavones

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Citations (2)

One-pot synthesis of coal gangue–derived NiCG composite for enhancing microwave absorption

Colloids and Surfaces A Physicochemical and Engineering Aspects (2023)

Baoshun Zhu Yunfeng Gao Huilan Hao Guorong Ji Chao Yang

Reflection loss

Gangue

Dielectric loss

10.1016/j.colsurfa.2023.131305

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Citations (9)