journal article·2022-10-03

Polar Bear Hair Inspired Supra-Photothermal Promoted Water Splitting

Yuan Cao, Linfeng Gao, Bing Wang, Yingfang Yao, Congping Wu, Qing Shen, Jianyong Feng, Yong Zhou, Zhaosheng Li, Zhigang Zou

ACS Materials Letters· Volume 4· Issue 10
Publisher page

Abstract

The photothermal effect has recently been applied to oxygen evolution reaction (OER) electrodes, which can effectively convert solar energy into heat to promote the reaction kinetics. However, optimized materials that can more efficiently collect and utilize solar energy are demanded. Here, inspired by the thermal insulation ability of polar bear hairs, we fabricated a villous carbon frameworks (VCF) embedded with FeNi3 alloys. Under illumination, the achieved local temperature surpassed the bare carbon frameworks (CF). This highly promoted the OER performance of the inner electrocatalysts. With light illumination intensity of 0.25 W cm–2, the VCF demonstrated an overpotential of 194 mV to deliver 100 mA cm–2 current density. The current density at 1.45 V could reach over 300 mA cm–2, about 8.5-fold of that without illumination, outperforming traditional photothermal electrocatalysts. Meanwhile, quasi-operando soft X-ray absorption spectroscopy (SXAS) manifested that the photothermal effect of the VCF would boost the electron rearrangement of iron–nickel species during OER and optimize the adsorption of oxygen intermediates. Our design principle was transferable to other catalysts whose performance could be accelerated by the photothermal effect.
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Research context

OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced Photocatalysis Techniques · Advanced battery technologies research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Eco-materials and Renewable Energy Research Center (ERERC), School of Physics, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P. R. China

College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P. R. China

Jiangsu Key Laboratory for Nano Technology, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P. R. China

School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), 2001 Longxiang Blvd., Longgang District, Shenzhen 518172, P. R. China

Kunshan Inovation Institute of Nanjing University, 1699 Zuchongzhi South Road, Kunshan, Jiangsu 215347, P. R. China

Faculty of Informatics and Engineering, The University of ElectroCommunications, Tokyo 182-8585, Japan

Macau Institute of Systems Engineering, Macau University of Science and Technology, Macau 999078, P. R. China

Funding

Guangdong Province Introduction of Innovative R&D Team · Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Jiangsu Province · Central University Basic Research Fund of China · Ministry of Industry and Information Technology of the People's Republic of China · National Natural Science Foundation of China · Wuhan National Laboratory for Optoelectronics · Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory

References (49)

Show source-provided references
1. 10.1038/529466e10.1038/529466e ↗
2. 10.1038/s41560-018-0132-110.1038/s41560-018-0132-1 ↗
3. 10.1039/C6CS00328A10.1039/C6CS00328A ↗
4. 10.1021/acsenergylett.1c0238010.1021/acsenergylett.1c02380 ↗
5. 10.1002/anie.20201618110.1002/anie.202016181 ↗
6. 10.1002/anie.20140495310.1002/anie.201404953 ↗
7. 10.1002/adma.20200440610.1002/adma.202004406 ↗
8. 10.1002/smll.20190384710.1002/smll.201903847 ↗
9. 10.1002/adma.20190360510.1002/adma.201903605 ↗
10. 10.1038/s41560-019-0373-710.1038/s41560-019-0373-7 ↗
11. 10.1038/s41560-021-00867-w10.1038/s41560-021-00867-w ↗
12. 10.1016/j.enchem.2020.10004710.1016/j.enchem.2020.100047 ↗
13. 10.1073/pnas.202342111810.1073/pnas.2023421118 ↗
14. 10.1039/D0CS00962H10.1039/D0CS00962H ↗
15. 10.1039/D1TA02995A10.1039/D1TA02995A ↗
16. 10.1002/smll.20200255010.1002/smll.202002550 ↗
17. 10.1021/acscatal.1c0186710.1021/acscatal.1c01867 ↗
18. 10.1002/adma.20140144910.1002/adma.201401449 ↗
19. 10.1002/adma.20140171810.1002/adma.201401718 ↗
20. 10.1016/j.chempr.2019.04.02510.1016/j.chempr.2019.04.025 ↗
21. 10.1002/adma.20170680710.1002/adma.201706807 ↗
22. Power and Syred/Science Photo Library Polar bear hair (SEM). https://www.sciencephoto.com/media/506161/view (accessed August 6).
23. 10.1021/acsnano.7b0597110.1021/acsnano.7b05971 ↗
24. 10.1002/aenm.20150258510.1002/aenm.201502585 ↗
25. 10.1039/C7EE02972A10.1039/C7EE02972A ↗
26. 10.1002/adfm.20220405610.1002/adfm.202204056 ↗
27. 10.1038/nnano.2014.24810.1038/nnano.2014.248 ↗
28. 10.1364/AO.19.00033910.1364/AO.19.000339 ↗
29. 10.1002/adma.20200001410.1002/adma.202000014 ↗
30. 10.1002/adma.20210324810.1002/adma.202103248 ↗
31. 10.1021/acsnano.1c0099010.1021/acsnano.1c00990 ↗
32. 10.1080/0144235X.2015.112702710.1080/0144235X.2015.1127027 ↗
33. 10.1039/C6FD00206D10.1039/C6FD00206D ↗
34. 10.1016/j.joule.2018.08.00810.1016/j.joule.2018.08.008 ↗
35. 10.1126/sciadv.aaw548410.1126/sciadv.aaw5484 ↗
36. 10.1039/C9EE00945K10.1039/C9EE00945K ↗
37. 10.1038/ncomms544910.1038/ncomms5449 ↗
38. 10.1038/s41467-017-02429-910.1038/s41467-017-02429-9 ↗
39. 10.1039/C8TA01334A10.1039/C8TA01334A ↗
40. 10.1038/s41467-019-09191-010.1038/s41467-019-09191-0 ↗
41. 10.1021/ja065627h10.1021/ja065627h ↗
42. 10.1016/j.jpowsour.2018.05.02610.1016/j.jpowsour.2018.05.026 ↗
43. 10.1103/PhysRevB.63.12512310.1103/PhysRevB.63.125123 ↗
44. 10.1126/science.121285810.1126/science.1212858 ↗
45. 10.1002/adfm.20200343810.1002/adfm.202003438 ↗
46. 10.1002/adma.20200752510.1002/adma.202007525 ↗
47. 10.1002/anie.20210245210.1002/anie.202102452 ↗
48. 10.1002/anie.20191308010.1002/anie.201913080 ↗
49. 10.1021/acs.chemrev.1c0019710.1021/acs.chemrev.1c00197 ↗