Research Theme: Integration of &Top-down& with &Bottom-up& Approaches for Energy and Environmental Applications
The goal of this research is to develop inorganic nanostructures for energy and environmental applications, at the intersection of chemistry, physics and materials science.
We develop new synthetic and fabrication approaches based on the rational control of size, shape, structure and composition at the nanoscale.
As the project unfolds, we investigate the physicochemical properties intrinsically associated with the well-defined nanostructures, and implement their functionality in different application systems.
Ultimately this research will emphasize integration of nanoscale building blocks into complex functional systems. Two research projects are listed below as demonstrations.
Research Project 1: Design of Nanocatalysts with High Activity and Selectivity for Clean Energy
Increasing levels of atmospheric carbon dioxide (CO2) have been recognized as the principal cause of current trends in global warming.
To reduce this environmental pollution, efforts are being made to capture and sequester CO2 and to recycle it as a fuel feedstock that can also meet future energy demands.
Currently, the major obstacle preventing efficient conversion of CO2 into energy-bearing products is the lack of catalysts that can readily couple an abundant energy source (e.g., electricity from solar, or direct solar radiation) with inexpensive reducing agents (e.g., hydrogen derived from water) to achieve rapid and selective cleavage of C-O bonds in CO2 and formation of C-H bonds in the products.
Electrocatalysis and photocatalysis are two promising approaches to CO2 conversion.
In this project, we develop new nanocatalysts for the electrocatalytic and photocatalytic conversion of CO2, by leveraging shape-controlled synthesis of nanocrystals.
It is anticipated that this study will provide guidance for designing new catalysts with specific facets, edge-to-face ratios and compositions for improving their selectivity and activity.
In parallel, we design novel nanocatalysts for fuel cells and biomass conversion with similar approaches.
Research Project 2:&Fabrication of Flexible and High-Performance Optoelectronics
Photovoltaic (PV) technologies that harvest and convert sunlight directly into electricity will play a vital role in efforts to provide clean and secure sources of energy.
Currently, a low-cost PV approach uses very thin layers of absorber materials, which in turn enables the mechanical deformability of devices.
However, such reduction in absorber thickness greatly compromises the efficiency of the devices due to relatively poor light absorption, in particular for indirect-bandgap semiconductor silicon.
For this reason, it is crucial to develop solutions to efficiently harvest or trap light for the continued applications of low-cost PV modules.
In this project, we maximize the enhancement of light absorption in thin-film PV cells, by designing a new class of metallic nanostructures for the two different approaches.
In the first approach, metallic nanocrystals are used as subwavelength scattering elements (originated from localized surface plasmon resonance (LSPR)) to couple and trap freely propagating plane waves from the Sun into absorber thin film.
In the second approach, metallic nanowires are used as a waveguiding component that can couple sunlight into surface plasmon polariton (SPP) modes propagating at the metal/semiconductor interface and effectively turn the incident solar flux by 90 degree, allowing light absorption along the lateral direction of PV cell.
In a long term, we will search for and develop new low-cost absorber materials with easily controlled stoichiometry and element abundance for the sustainable development of thin-film PV modules, and accordingly design suitable plasmonic nanocrystals for the new absorbers.
Another direction is to fully explore the possibility of achieving extreme mechanical properties in thin-film PV devices (e.g., flexibility, stretchability, and foldability), which can be valuable for applications in architectural or automotive glass, portable devices, wearable electronics and others.
In addition to PV, inorganic light-emitting diodes (LEDs) are another class of devices that we plan to endow with the mechanical deformability with similar approaches.
Selected Publication:
1. Long, R.; Mao, K.; Ye, X.; Yan, W.; Huang, Y.; Wang, J.; Fu, Y.; Wang, X.; Wu, X.; Xie, Y. and Xiong, Y.*, J. Am. Chem. Soc. 135,
2. Bai, Y.; Zhang, W.; Zhang, Z.; Zhou, J.; Wang, X.; Wang, C.; Huang, W.*; Jiang, J.* and Xiong, Y.*, J. Am. Chem. Soc. 136,
3. Bai, S.; Wang, C.; Deng, M.; Gong, M.; Bai, Y.; Jiang, J. and Xiong, Y.*, Angew. Chem. Int. Ed. 53,
4. Wang, L.; Ge, J.; Wang, A.; Deng, M.; Wang, X.; Bai, S.; Li, R.; Jiang, J.;* Zhang, Q.;* Luo, Y. and Xiong, Y.*, Angew. Chem. Int. Ed. 53,
5. Long, R.; Mao, K.; Gong, M.; Zhou, S.; Hu, J.; Zhi, M.; You, Y.; Bai, S.; Jiang, J.; Zhang, Q.;* Wu, X.* and Xiong, Y.*, Angew. Chem. Int. Ed. 53,
6. Bai, S.; Ge, J.; Wang, L.; Gong, M.; Deng, M.; Kong, Q.; Song, L.; Jiang, J.;* Zhang, Q.;* Luo, Y.; Xie, Y. and Xiong, Y.*, Adv. Mater. 26,
7. Li, R.; Hu, J.; Deng, M.; Wang, H.; Wang, X.; Hu, Y.; Jiang, H. L.; Jiang, J.;* Zhang, Q.;* Xie, Y. and Xiong, Y.*, Adv. Mater. 26,
8. Long, R.; Zhou, S.; Wiley, B. J.* and Xiong, Y.*, Chem. Soc. Rev. 43,
9. Bai, S.; Yang, L.; Wang, C.; Lin, Y.; Lu, J.; Jiang, J. and Xiong, Y.*, Angew. Chem. Int. Ed. 54,
10. Ma, L.; Wang, C.; Xia, B. Y.; Mao, K.; He, J.; Wu, X.; Xiong, Y.* and Lou, X. W.*, Angew. Chem. Int. Ed. 54,
11. Liu, D.; Li, L.; Gao, Y.; Wang, C.; Jiang, J. and Xiong, Y.*, Angew. Chem. Int. Ed. 54,
12. Long, R.; Rao, Z.; Mao, K.; Li, Y.; Zhang, C.; Liu, Q.; Wang, C.; Li, Z. Y.; Wu, X. and Xiong, Y.*, Angew. Chem. Int. Ed. 54,
13. Wang, L.; Li, X.; Li, Z.; Chu, W.; Li, R.; Lin, K.; Qian, H.; Wang, Y.; Wu, C.; Li, J.; Tu, D.; Zhang, Q.; Song, L.; Jiang, J.*; Chen, X.; Luo, Y.; Xie, Y. and Xiong, Y.*, Adv. Mater. 27,
14. Long, R.; Huang, H.; Li, Y.; Song, L. and Xiong, Y.*, Adv. Mater. 27,
15. Chen, Y. Z.; Wang, C.; Wu, Z. Y.; Xiong, Y.*; Xu, Q.; Yu, S. H. and Jiang, H. L.*, Adv. Mater. 27,
16. Bai, S.; Li, X.; Kong, Q.; Long, R.; Wang, C.; Jiang, J. and Xiong, Y.*, Adv. Mater. 27,
17. Bai, S.; Jiang, J.; Zhang, Q. and Xiong, Y.*, Chem. Soc. Rev. 44,
18. Zhang, N.; Li, X.; Ye, H.; Chen, S.; Ju, H.; Liu, D.; Lin, Y.; Ye, W.; Wang, C.; Xu, Q.; Zhu, J.; Song, L.; Jiang, J.* and Xiong, Y.*, J. Am. Chem. Soc. 138,
19. Huang, H.; Zhang, L.; Lv, Z.; Long, R.; Zhang, C.; Lin, Y.; Wei, K.; Wang, C.; Chen, L.; Li, Z. Y.; Zhang, Q.;* Luo, Y. and Xiong, Y.*, J. Am. Chem. Soc. 138,
20. Liu, D.; Yang, D.; Gao, Y.; Ma, J.; Long, R.; Wang, C. and Xiong, Y.*, Angew. Chem. Int. Ed. 55,
21. Li, Y.; Wang, Z.; Xia, T.; Ju, H.; Zhang, K.; Long, R.; Xu, Q.; Wang, C.; Song, L.; Zhu, J.; Jiang, J. and Xiong, Y.*, Adv. Mater. 28,
22. Du, N.; Wang, C.; Wang, X.; Lin, Y.; Jiang, J. and Xiong, Y.*, Adv. Mater. 28,
23. Long, R.; Li, Y.; Liu, Y.; Chen, S.; Zheng, X.; Gao, C.; He, C.; Chen, N.; Qi, Z.; Song, L.; Jiang, J.; Zhu, J. and Xiong, Y.*, J. Am. Chem. Soc. 139,
24. Yuan, Q.; Liu, D.; Zhang, N.; Ye, W.; Ju, H.; Shi, L.; Long, R.; Zhu, J. and Xiong, Y.*, Angew. Chem. Int. Ed. 56,
25. Gao, C.; Wang, J.; Xu, H. and&Xiong,
Y.*,&Chem. Soc. Rev.&46,
26. Hu, F.;* Zhu, S.; Chen, S.; Li, Y.; Ma, L.; Wu, T.; Zhang, Y.; Wang, C.; Liu, C.; Yang, X.; Song, L.; Yang, X. W.* and Xiong, Y.*, Adv. Mater. 29, 17).
27. Gao, C.;
Chen, S.; Wang, Y.; Wang, J.; Zheng, X.; Zhu, J.; Song, L.;* Zhang, W. and Xiong, Y.*, Adv. Mater. DOI: 10.1002/adma. (2018).
28. Wang, L.; Zheng, X.; Chen, L.; Xiong, Y.* and Xu, H.,* Angew. Chem. Int. Ed. DOI: 10.1002/anie. (2018).
29. Wang, L.; Zhang, Y.; Chen, L.; Xu, H.*
and Xiong, Y.*, Adv. Mater. DOI: 10.1002/adma. (2018).xiongweilong21的贴吧
3.18打建业的门票官网怎么还没有发售？有谁知道小8序列号C2开头产地是哪里吗？***上的名字叫熊伟龙手续都有，上了牌的，诚心买的来，钱大的请绕道，有意的联系我 QQ用不到一个月 用了一个月 看上拿走50全拿走