Novel hollow microsphere with porous carbon shell embedded with Cu/Co bimetal nanoparticles: Facile large-scale preparation and catalytic hydrogenation performance

Du, Gaiping; Liu, Ran; Jia, Qianqian; Han, Gang; An, Zhenguo; Zhang, Jingjie

doi:10.1016/j.jmst.2021.11.080

Journal of Materials Science & Technology

2022

DOI: 10.1016/j.jmst.2021.11.080

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Novel hollow microsphere with porous carbon shell embedded with Cu/Co bimetal nanoparticles: Facile large-scale preparation and catalytic hydrogenation performance

Gaiping Du¹,

Ran Liu²,

Qianqian Jia³

et al.

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Cited by 6 publications

References 53 publications

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Cu‐Co Hybrid Crystals Assembled on Hollow Microsphere: Temperature‐Dependent Top‐Down Synthesis and Aggregation‐Induced Conversion from Microwave Shielding to Absorption

Jia

et al. 2022

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The construction of hollow metallic microspheres with rationally designed building blocks of the metal shell is a promising way to achieve low density and functionality control, but the microengineering of the metallic structures on a micrometer spherical surface is a great challenge. In the present work, a novel and simple calcination‐induced aggregation strategy is developed to realize the distribution status and microstructure control of Co‐Cu bimetal building blocks assembled on a hollow glass microsphere support, and thus a series of low‐density (0.58 g cm−3) dual shell composite hollow microspheres are constructed with gradient in electromagnetic property depending on the calcination temperature (CT). The optimized microwave shielding performance can be achieved at a CT of 500 °C, while further increasing CT to 700 °C leads to an interesting conversion from microwave shielding to absorption with an optimized effective absorption bandwidth of 4.64 GHz at a low matching thickness of 1.33 mm. The mechanism underlying the CT‐dependent metallic shell structure variation and further the decisive effect of the shell structure on the microwave response behavior are proposed based on a series of contrast experiments.

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Cu‐Co Hybrid Crystals Assembled on Hollow Microsphere: Temperature‐Dependent Top‐Down Synthesis and Aggregation‐Induced Conversion from Microwave Shielding to Absorption

Jia

et al. 2022

Small

Self Cite

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Glass-cobalt Janus shell hollow microspheres: Shell structure dependence of mechanical strength and electromagnetic property

Jia,

Li,

et al. 2024

Chemical Engineering Journal

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Biomass-based controllable morphology of carbon microspheres with multi-layer hollow structure for superior performance in supercapacitors

Gao,

Wang,

Wang

et al. 2024

Journal of Colloid and Interface Science

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Novel hollow microsphere with porous carbon shell embedded with Cu/Co bimetal nanoparticles: Facile large-scale preparation and catalytic hydrogenation performance

Cited by 6 publications

References 53 publications

Cu‐Co Hybrid Crystals Assembled on Hollow Microsphere: Temperature‐Dependent Top‐Down Synthesis and Aggregation‐Induced Conversion from Microwave Shielding to Absorption

Cu‐Co Hybrid Crystals Assembled on Hollow Microsphere: Temperature‐Dependent Top‐Down Synthesis and Aggregation‐Induced Conversion from Microwave Shielding to Absorption

Glass-cobalt Janus shell hollow microspheres: Shell structure dependence of mechanical strength and electromagnetic property

Biomass-based controllable morphology of carbon microspheres with multi-layer hollow structure for superior performance in supercapacitors

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