Controlled synthesis and advanced applications of ultralong carbon nanotubes

Frontiers of Chemical Science and Engineering, Год журнала: 2025, Номер 19(5)

Опубликована: Март 25, 2025

Язык: Английский

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Precisely 3D printing of ultrastrong architected carbon with a bio-inspired superstructure

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Апрель 11, 2025

Reducing defect is a critical challenge for developing strong metamaterials that are greatly demanded in multiple fields. Herein, we show precisely 3D-printed ultrastrong architected carbon with superstructure the skeletal structure of knobby starfish. This could function as shrinkage-adaptive isotropic uniformity stress distribution to significantly reduce defects. By pyrolyzing polymer templates were using two-photon lithography, nano-architected was prepared under 99% volume shrinkage. It had compressive strength achieving theoretical limit 7.23GPa, specific 10.33 GPa g^{− 1} cm³, and fracture strain high 66%. might be strongest among known mechanical metamaterials. The scaffolds, strength-to-weight ratio exceeding 1000000:1, customized bone repair. scaffold exhibited modulus comparable cortical bone. Animal experiments indicated implant effectively repair critical-sized defects by inducing osteogenesis in vivo, showing great promise future clinical work highlights bio-inspired design cue address fabricating little

Язык: Английский

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Highly Thermally Conductive Boron Nitride Fiber

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Апрель 14, 2025

Innovative thermal management fiber materials have emerged as a solution to address challenges across diverse fields, ranging from personal comfort and electronic device cooling aerospace engineering. While graphene is known for its higher conductivity over conventional carbon fiber, boron nitride (BN) has received much less attention in one-dimensional form, despite combined high notable insulating properties. Previous studies mainly focused on composite fibers with BN nanosheets embedded polymer matrix. In contrast, pure consequent investigations single-fiber level barely been reported. this study, we report the fabrication of continuous, via polymer-derived ceramic approach thermally conductive fillers. Comprehensive structural characterizations confirm fibers' quality purity without apparent contamination. With big-MEMS method developed, single precisely measured reaches an impressive 54 W m-1 K-1. Furthermore, using stacking-cutting method, resulting vertically aligned fiber-reinforced epoxy demonstrates 24 K-1, showing immense potential usage interface material. This work explores electrically applications.

Язык: Английский

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Self-healing Superhydrophobic Carbon Nanotubes/Organosilicon-modified Polyacrylate Composite Flexible Coating for Tensile Sensing Application

Materials Today Communications, Год журнала: 2025, Номер unknown, С. 112509 - 112509

Опубликована: Апрель 1, 2025

Язык: Английский

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Study on the Mechanical Properties of Cement-Based Materials Enhanced by Carbon Nanotubes

Material Sciences, Год журнала: 2025, Номер 15(04), С. 650 - 659

Опубликована: Янв. 1, 2025

Язык: Английский

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