Fe3O4‐doped highly electromagnetically shielded PAN‐PVP composite porous carbon films DOI

Renyuan Yang,

Longfeng Liao,

Yuhuan Xu

et al.

Polymer Composites, Journal Year: 2024, Volume and Issue: 46(7), P. 6019 - 6031

Published: Dec. 4, 2024

Abstract With the wide application of modern electronic devices, problem electromagnetic pollution is becoming more and serious, demand for efficient shielding materials urgent. To address this problem, we homogeneously mixed polyacrylonitrile (PAN), polyvinylpyrrolidone (PVP), triiron tetraoxide (Fe 3 O 4 ) nanoparticles by solution blending, prepared composite precursor membranes taking advantage magnetic properties good loss characteristics Fe , as well high thermal stability film‐forming PAN PVP. Subsequently, carbonized PAN‐PVP/ films with different contents were successfully carbonization under temperature inert atmosphere to convert PVP into carbon materials. It was found that porous film wt% addition had a conductivity 3.99 S·mm −1 at thickness 0.42 mm, an average EMI SE T 78.9 dB, A 64.8 SSEt 1838 dB/(cm 2 ·g in X‐band, which typical wave absorbing material can meet commercial requirements. This work provides new ideas methods research development polymer‐based Highlights The rich structure prepared. embedded film. Carbon have conducting network. has excellent performance. main mode absorption.

Language: Английский

Rational design of mesopores with oxygen doping for porous carbon derived from sugarcane bagasse for Zn-ion supercapacitors DOI

Zhizhou Chen,

Qian Chu, Yan Su

et al.

Applied Surface Science, Journal Year: 2024, Volume and Issue: unknown, P. 162183 - 162183

Published: Dec. 1, 2024

Language: Английский

Citations

0
Heteroatom-enriched carbon from acacia pods for high-performance symmetric supercapacitors: Balancing gravimetric and volumetric capacities DOI
Erman Taer, Mohamad Deraman, Mohd Amir Radhi Othman

et al.

Diamond and Related Materials, Journal Year: 2024, Volume and Issue: unknown, P. 111919 - 111919

Published: Dec. 1, 2024

Language: Английский

Citations

0
Biomass-tar-derived oxygen-enriched porous carbon as a high-performance carbon electrode material for double electric layer and zinc-ion hybrid supercapacitor DOI

Xuanyuan Ni,

Yunxing Zhao,

Pengcheng Cai

et al.

Diamond and Related Materials, Journal Year: 2024, Volume and Issue: 148, P. 111451 - 111451

Published: July 30, 2024

Language: Английский

Citations

0
Fe3O4‐doped highly electromagnetically shielded PAN‐PVP composite porous carbon films DOI

Renyuan Yang,

Longfeng Liao,

Yuhuan Xu

et al.

Polymer Composites, Journal Year: 2024, Volume and Issue: 46(7), P. 6019 - 6031

Published: Dec. 4, 2024

Abstract With the wide application of modern electronic devices, problem electromagnetic pollution is becoming more and serious, demand for efficient shielding materials urgent. To address this problem, we homogeneously mixed polyacrylonitrile (PAN), polyvinylpyrrolidone (PVP), triiron tetraoxide (Fe 3 O 4 ) nanoparticles by solution blending, prepared composite precursor membranes taking advantage magnetic properties good loss characteristics Fe , as well high thermal stability film‐forming PAN PVP. Subsequently, carbonized PAN‐PVP/ films with different contents were successfully carbonization under temperature inert atmosphere to convert PVP into carbon materials. It was found that porous film wt% addition had a conductivity 3.99 S·mm −1 at thickness 0.42 mm, an average EMI SE T 78.9 dB, A 64.8 SSEt 1838 dB/(cm 2 ·g in X‐band, which typical wave absorbing material can meet commercial requirements. This work provides new ideas methods research development polymer‐based Highlights The rich structure prepared. embedded film. Carbon have conducting network. has excellent performance. main mode absorption.

Language: Английский

Citations

0