阿德莱德大学唐城博士12月27日下午学术报告

发布时间:2019-12-24访问量:170设置

报告人:唐城 博士阿德莱德大学

报告题目Three-dimensional Graphene-Based Materials for Energy Electrocatalysis

报告时间:1227日下午2:00(周五)

报告地点:910-308

  

报告摘要:

The access to clean, affordable and reliable energy is the cornerstone of the world’s sustainable development and increasing prosperity. In spite of the giant progress in renewable sources, fossil fuels still account for over 80% share in today’s primary energy consumption; however, it lead to enormous greenhouse-gas emissions and intensifying climate changes since the industrial revolution.Advanced technologies that can utilize renewable sources, generate clean energy, and produce important chemical feedstocks without any fossil fuel consumption or carbon emission, are therefore of significant interest and urgency. Among various candidates, highly efficient electrocatalysis technologies for the sustainable production of fuels and chemicals using abundant sources like water, air (O2, N2), CO2, and renewable electricity (from wind, solar, etc.) have attracted increasing attention recently. However, these technologies significantly suffer from the sluggish kinetics and poor selectivity of several key reactions, including oxygen reduction reaction (ORR), CO2 reduction reaction (CRR), and nitrogen reduction reaction (NRR). These limiting issues call for both fundamental and technical breakthroughs in developing highly active and selective electrocatalysts.

During the past few decades, graphene-based materials has drawn tremendous interest and witnessed remarkable achievements in energy electrocatalysis owing to their intriguing physiochemical properties and flexible tunability in nanostructures, surface chemistry, and performance. However, a significant gap still exists between reality and ideal owing to the limited quality, inevitable aggregation, and abundant interface in obtained 2D graphene nanomaterials. By directly constructing a 3D graphene framework with sp2 hybridization and hierarchical porosity, it will not only maintain the excellent intrinsic properties of 2D graphene in the macroscopic 3D structure, but also is expected to generate some novel properties and significantly improved performance. During the past few years, I have paid much effort on the design, synthesis, and application of 3D hierarchical porous graphene (hpG) materials targeted on energy electrocatalysis. The fundamental understanding of graphene growth behavior on metal oxides promotes the mechanism study and mass production of high-quality graphene for high-performance electrochemical energy applications. The versatile synthetic strategies and utilization concepts of 3D hpG materials offer new opportunities to deepen the understanding of the structure–function relationship of 3D graphene materials and remarkably enhance their performance in energy electrocatalysi. Furthermore, the verified 3D concept for various 2D materials opens up a new direction for all-round engineering of nanomaterials towards beneficial properties and high-performance application.


Selected Refs:

1.Tang C, Qiao SZ, How to Explore Ambient Electrocatalytic Nitrogen Reduction Reliably and Insightfully, Chemical Society Reviews, 2019, 48, 3166-3180. (Times cited: 11, IF: 40.443)

2.Tang C, Wang HF, Huang JQ, Qian WZ, Wei F, Qiao SZ, Zhang Q. 3D Hierarchical Porous Graphene-Based Energy Materials: Synthesis, Functionalization, and Application in Energy Storage and Conversion. Electrochemical Energy Reviews, 2019, 2, 332-371. (Times cited: 15, New journal)

3.Tang C, Wang HF, Zhang Q. Multiscale Principles to Boost Reactivity in Gas-Involving Energy Electrocatalysis. Accounts of Chemical Research, 2018, 51, 881-889. (Times cited: 100, ESI Highly Cited Paper, IF: 21.661)

4.Tang C, Zhong L, Zhang BS, Wang HF, Zhang Q. 3D Mesoporous van der Waals Heterostructures for Trifunctional Energy Electrocatalysis. Advanced Materials, 2018, 30, 1705110. (Times cited: 52, ESI Highly Cited Paper, IF: 25.809)

5.Tang C, Wang B, Wang HF, Zhang Q. Defect Engineering Toward Atomic Co–Nx–C in Hierarchical Graphene for Rechargeable Flexible Solid Zn–Air Batteries. Advanced Materials, 2017, 29, 1703185. (Times cited: 43, IF: 25.809)

6.Tang C, Zhang Q. Nanocarbon for Oxygen Reduction Electrocatalysis: Dopants, Edges, and Defects. Advanced Materials, 2017, 29, 1604103. (Times cited: 241, ESI Highly Cited Paper, IF: 25.809)

7.Tang C, Wang HF, Chen X, Li BQ, Hou TZ, Zhang BS, Zhang Q, Titirici MM, Wei F. Topological Defects in Metal-Free Nanocarbon for Oxygen Electrocatalysis. Advanced Materials, 2016, 28, 6845-6851. (Times cited: 286, ESI Highly Cited Paper, IF: 25.809, Back Cover)

8.Tang C, Wang HS, Wang HF, Zhang Q, Tian GL, Nie JQ, Wei F. Spatially Confined Hybridization of Nanometer-Sized NiFe Hydroxides into Nitrogen-Doped Graphene Frameworks Leading to Superior Oxygen Evolution Reactivity. Advanced Materials, 2015, 27, 4516-4522. (Times cited: 340, ESI Highly Cited Paper; IF: 25.809, Back Cover)

9.Tang C, Zhang Q, Zhao MQ, Huang JQ, Cheng XB, Tian GL, Peng HJ, Wei F. Nitrogen-Doped Aligned Carbon Nanotube/Graphene Sandwiches: Facile Catalytic Growth on Bifunctional Natural Catalysts and Their Applications as Scaffolds for High-Rate Lithium–Sulfur Batteries. Advanced Materials, 2014, 26, 6100-6105. (Times cited: 376, ESI Highly Cited Paper; IF: 25.809, Inside Back Cover)


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