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Your search keyword '"Yao, Chenxue"' showing total 26 results
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26 results on '"Yao, Chenxue"'

6. Three-Dimensional MXene-Based Pd/Ni/Cu Electrocatalyst for Methanol Oxidation Reaction with Efficient Performance.

Author

Yao, Chenxue, Li, Mengyu, Xue, Zhengyan, Yang, Zhiguang, He, Ke, Chen, Qianqian, Cheng, Bo, Wang, Renjie, Cai, Shichang, Qiao, Xuehui, Zhang, Meng, and Li, Xiaochen

Abstract

In this work, we introduce a unique approach for fabricating a three-dimensional (3D) Cu-ZIF-8/MXene, combing the merits of MOFs and MXene to enhance their overall performance. Subsequently, the synthesis of 3D MXene-based Cu and N-doped porous carbon (Cu-NPCM) composites, characterized by high specific surface area, superior conductivity, and abundant active sites, was achieved through the carbonization and acid etching of Cu-ZIF-8/MXene. Utilizing the resulting 3D Cu-NPCM composites as effective electrocatalyst supports, Ni and Pd NPs were uniformly dispersed, preventing the aggregation of metal NPs. The unique structure of Cu-NPCM, coupled with the synergy of Ni and Pd, facilitates the creation of interconnected channels for rapid reactant and product diffusion, along with a substantial amount of OHad, thereby enhancing the electrocatalytic efficiency. Remarkably, the designed trimetallic Pd/Ni/Cu-NPCM catalyst demonstrates an advanced mass activity of 3641.2 mA mgPd–1 in the methanol oxidation reaction (MOR), surpassing Pd/Cu-NPCM (2200.5 mA mgPd–1), Pd/Cu-NPC (1447.1 mA mgPd–1), and Pd/C (209.3 mA mgPd–1) electrocatalysts by 1.66, 2.51, and 17.4 times, respectively. This research introduces an innovative approach to creating advanced support materials for electrocatalysts, simultaneously expanding the range of potential applications for direct methanol fuel cells (DMFCs). [ABSTRACT FROM AUTHOR]

Published
2024
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26. Silk Fibroin/Collagen Blended Membrane Fabricated via a Green Papermaking Method for Potential Guided Bone Regeneration Application: In Vitroand In VivoEvaluation

Author

Luo, Dandan, Yao, Chenxue, Zhang, Rui, Zhao, Ruibo, Iqbal, M. Zubair, Mushtaq, Asim, Lee, In-Seop, and Kong, Xiangdong

Abstract

Guided bone regeneration (GBR) technology is a commonly used surgical procedure for the repair of damaged periodontal tissues. Poor mechanical property and rapid degradation rate are the major reasons for GBR membrane failure in clinical applications. Herein, we applied a green papermaking method to fabricate silk fibroin (SF) membranes blended with collagen and tested their performance. The results showed that the blended SF75 (SF and collagen in a weight ratio of 75:25) membranes are biocompatible with good mechanical properties in the wet condition and appropriate biodegradation rate. MC3T3-E1 osteoblast cell adhesion and proliferation on the membranes were improved by the hybrid biological functions of SF and collagen. Subcutaneous implantation in rats for 9 weeks demonstrated that the membranes induced a less severe inflammatory response. The biodegradation time of the SF75 membranes was appropriate for tissue regeneration. This research, for the first time, reports a blended membrane prepared from silk fibroin and collagen with an ecofriendly method, which shows promise for application in guided bone regeneration.

Published
2021
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