Publications by authors named "Kangyi Zheng"

Graphene chemical vapor deposition (CVD) growth directly on target using substrates presents a significant route toward graphene applications. However, the substrates are usually catalytic-inert and special-shaped; thus, large-scale, high-uniformity, and high-quality graphene growth is challenging. Herein, graphene-skinned glass fiber fabric (GGFF) was developed through graphene CVD growth on glass fiber fabric, a Widely used engineering material.

View Article and Find Full Text PDF

Graphene growth on widely used dielectrics/insulators via chemical vapor deposition (CVD) is a strategy toward transfer-free applications of CVD graphene for the realization of advanced composite materials. Here, we develop graphene-skinned alumina fibers/fabrics (GAFs/GAFFs) through graphene CVD growth on commercial alumina fibers/fabrics (AFs/AFFs). We reveal a vapor-surface-solid growth model on a non-metallic substrate, which is distinct from the well-established vapor-solid model on conventional non-catalytic non-metallic substrates, but bears a closer resemblance to that observed on catalytic metallic substrates.

View Article and Find Full Text PDF
Article Synopsis
  • - Direct synthesis of graphene on nonmetallic substrates, specifically glass fiber, using a chemical vapor deposition (CVD) method poses challenges in mass production and quality control, which researchers are striving to overcome.
  • - The innovative approach involves using a binary-precursor system combining acetylene for rapid growth and acetone for improved quality, alongside a unique gas-liquid introduction system to facilitate production.
  • - The developed graphene glass fiber fabric (GGFF) showcases promising thermal properties, leading to a self-adaptive film that intelligently manages temperature by switching between heating and cooling modes, paving the way for new applications in thermal management.
View Article and Find Full Text PDF

Direct chemical vapor deposition (CVD) growth of graphene on dielectric/insulating materials is a promising strategy for subsequent transfer-free applications of graphene. However, graphene growth on noncatalytic substrates is faced with thorny issues, especially the limited growth rate, which severely hinders mass production and practical applications. Herein, graphene glass fiber fabric (GGFF) is developed by graphene CVD growth on glass fiber fabric.

View Article and Find Full Text PDF