Crystal Preferred Orientation of Heteroatomic Co/ZnO/Co3ZnC Nanoclusters for Balanced Conductive and Polarization Loss DOI

Mengyao Cui,

Wei Yu,

Shengchong Hui

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 15, 2025

Abstract Comprehensively understanding the interdependency between crystal plane orientation and intrinsic electromagnetic (EM) properties in heteroatomic metal‐nanoclusters (HACs) advances high‐performance wave (EMW) absorbers. Here, a new surface charge deposition high‐temperature pyrolysis strategy is proposed to prepare HAC with Preferred for elucidating EMW loss mechanisms. The diffusion rate of atoms on cubic ZIF‐8 seeds regulated by using cetyltrimethylammonium bromide (CTAB) as physical barrier, then process gives rise Co/ZnO/Co 3 ZnC orientation. results show that Co₃ZnC plays dominant role governing loss, along (110) attenuates through conductive while (200) increases HAC‐c polarization losses, optimizes impedance matching, balances loss. exhibits an ultrahigh effective absorbing bandwidth (EAB) 7.12 GHz (with matched thickness 2.3 mm). Furthermore, compared non‐oriented HAC‐s (sodium dodecyl sulfate) HAC‐p (polyvinyl pyrrolidone), absorption performance significantly improved. This study clarifies relationship mechanism attenuation, proposing approach designing materials.

Language: Английский

Crystal Preferred Orientation of Heteroatomic Co/ZnO/Co3ZnC Nanoclusters for Balanced Conductive and Polarization Loss DOI

Mengyao Cui,

Wei Yu,

Shengchong Hui

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 15, 2025

Abstract Comprehensively understanding the interdependency between crystal plane orientation and intrinsic electromagnetic (EM) properties in heteroatomic metal‐nanoclusters (HACs) advances high‐performance wave (EMW) absorbers. Here, a new surface charge deposition high‐temperature pyrolysis strategy is proposed to prepare HAC with Preferred for elucidating EMW loss mechanisms. The diffusion rate of atoms on cubic ZIF‐8 seeds regulated by using cetyltrimethylammonium bromide (CTAB) as physical barrier, then process gives rise Co/ZnO/Co 3 ZnC orientation. results show that Co₃ZnC plays dominant role governing loss, along (110) attenuates through conductive while (200) increases HAC‐c polarization losses, optimizes impedance matching, balances loss. exhibits an ultrahigh effective absorbing bandwidth (EAB) 7.12 GHz (with matched thickness 2.3 mm). Furthermore, compared non‐oriented HAC‐s (sodium dodecyl sulfate) HAC‐p (polyvinyl pyrrolidone), absorption performance significantly improved. This study clarifies relationship mechanism attenuation, proposing approach designing materials.

Language: Английский

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