Ti3C2Tx-coated diatom frustules-derived porous SiO(2 )composites with high EMI shielding and mechanical properties

Lyu，Sha1; Zhao，Te1; Wang，Yanjing1; Han，He1; Li，Tao1; Zhang，Chentao1; Li，Dandan1; Wang，Jaw Kai1,2; Huang，Jintao1,3; Yu，Peng1; Sun，Dazhi1

2022-08-15

10.1016/j.ceramint.2022.04.187

CERAMICS INTERNATIONAL   影响因子和分区

0272-8842

1873-3956

Effective electromagnetic interference (EMI) shielding materials have garnered substantial interest for their efficacy in attenuating electromagnetic wave energy, ensuring data confidentiality, ensuring the operational stability of fragile electronic systems. To begin, artificially cultured diatom frustules (DF)-derived porous silica (DFPS) skeletons were constructed as templates in this study. Porous ceramics hot-pressed at 800 ? displayed a high compressive strength with a high specific surface area due to their three-dimensional (3D) multilayered and porous structures. Then, mechanically robust Ti3C2Tx/DFPS composites with exceptional EMI shielding performance were fabricated by immersing porous DF-based ceramics into Ti3C2Tx solutions and annealing in an argon environment to increase the materials' shielding efficiency (SE). The EMI SE of composites hot-pressed at 800 ? achieved the maximum EMI SE of 43.2 dB in the X-band and a compressive strength of 67.5 MPa, establishing a hitherto unreported balance of mechanical characteristics and shielding performance. Prolonged transmission paths, multiple dissipation, scattering and reflection of electromagnetic energy were achieved using a well-maintained hierarchical porous silica framework decorated with MXene, with adsorption caused by surface MXene serving as the primary shielding mechanism for the composites. Due to their superior overall performance, MXene/DFPS EMI shielding composites have a bright future in the aircraft sector as delicate electronic device components.

Electromagnetic interference shielding MXene Diatom frustules (DF)-derived porous silica Hot pressing

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China[52003111] ; Shenzhen Science and Technology Innovation Committee[KQJSCX20180322152424539] ; Guangdong Provincial Key Laboratory Program, from the Department of Science and Technology of Guangdong Province[2021B1212040001]

Materials Science

Materials Science, Ceramics

WOS:000818788600005

ELSEVIER SCI LTD

20222112141021

Compressive strength ; Electromagnetic shielding ; Electromagnetic wave interference ; Hot pressing ; Magnetic shielding ; Signal interference ; Silica ; Titanium compounds ; Wave energy conversion

Wave Energy:615.6 ; Electricity and Magnetism:701 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Electromagnetic Waves:711 ; Information Theory and Signal Processing:716.1

MATERIALS SCIENCE

2-s2.0-85130395487

Web of Science

1.Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
2.Shenzhen Jawkai Bioengineering R&D Center Co. Ltd,Shenzhen,Guangdong,518055,China
3.Department of Polymeric Materials and Engineering,School of Materials and Energy,Guangdong University of Technology,Guangzhou,510006,China

Lyu，Sha,Zhao，Te,Wang，Yanjing,et al. Ti3C2Tx-coated diatom frustules-derived porous SiO(2 )composites with high EMI shielding and mechanical properties[J]. CERAMICS INTERNATIONAL,2022,48(16):22845-22853.

Lyu，Sha.,Zhao，Te.,Wang，Yanjing.,Han，He.,Li，Tao.,...&Sun，Dazhi.(2022).Ti3C2Tx-coated diatom frustules-derived porous SiO(2 )composites with high EMI shielding and mechanical properties.CERAMICS INTERNATIONAL,48(16),22845-22853.

Lyu，Sha,et al."Ti3C2Tx-coated diatom frustules-derived porous SiO(2 )composites with high EMI shielding and mechanical properties".CERAMICS INTERNATIONAL 48.16(2022):22845-22853.