学术成果与研究方向:
徐晓峰博士迄今共发表SCI收录论文60余篇,SCI引用数超过1900次,h因子为24(详细论文列表请见Researcher ID: Q-3106-2017;ORCID ID:0000-0002-4501-9579),担任多种SCI期刊的审稿人,包括:Advanced Materials, Advanced Energy Materials, Nano Energy, Chemistry of Materials, Journal of Materials Chemistry A, ACS Applied Materials & Interfaces等杂志。
本课题组致力于研究与发掘智能高分子材料与器件对“绿色能源”的高效转换与综合利用、以及在海洋生态环境监测与保护等领域的应用。主要研究内容包括:智能高分子材料的设计与合成;合成方法与机理研究;高分子材料的化学、物理与生物学性质的表征方法;各类能量转换器件的设计、制备与性能优化。
代表性论文(*标注通讯作者)
1. High-performance semitransparent polymer solar cells floating on water: Rational analysis of power generation, water evaporation and algal growth. Nan Zhang, Tong Jiang, Cui Guo,* Lifang Qiao, Qing Ji, Luqi Yin, Liangmin Yu, Petri Murto,* Xiaofeng Xu*. Nano Energy, 2020, 77, 105111.
2. Large-Area, Semitransparent, and Flexible All-Polymer Photodetectors.Xiaofeng Xu, Xiaobo Zhou, Ke Zhou, Yuxin Xia, Wei Ma,* and Olle Inganäs*. Advanced Functional Materials, 2018, 28, 1805570.
3. High-Performance All-Polymer Solar Cells Based on Fluorinated Naphthalene Diimide Acceptor Polymers with Fine-Tuned Crystallinity and Enhanced Dielectric Constants. Xiaofeng Xu, Zhaojun Li, Junke Wang, Baojun Lin, Wei Ma, Yangjun Xia*, Mats R. Andersson, René A.J. Janssen*, Ergang Wang*. Nano Energy, 2018, 45, 368–379.
4. 8.0% Efficient All-Polymer Solar Cells with High Photovoltage of 1.1 V and Internal Quantum Efficiency near Unity. Xiaofeng Xu, Zhaojun Li, Wei Zhang, Xiangyi Meng, Xianshao Zou, Dario Di Carlo Rasi, Wei Ma, Arkady Yartsev, Mats. R. Andersson, René A. J. Janssen* and Ergang Wang*. Advanced Energy Materials, 2018, 8, 1700908.
5. 9.0% Power Conversion Efficiency from Ternary All-polymer Solar Cells. Zhaojun Li, Xiaofeng Xu,* Wei Zhang, Xiangyi Meng, Zewdneh Genene, Wei Ma, Wendimagegn Mammo, Arkady Yartsev, Mats. R. Andersson, René A. J. Janssen* and Ergang Wang*. Energy & Environmental Science, 2017, 10, 2212–2221.
6. High Performance and Stable All-Polymer Solar Cells Using Donor and Acceptor Polymers with Complementary Absorption. Zhaojun Li, Wei Zhang, Xiaofeng Xu,* Zewdneh Genene, Wendimagegn Mammo, Arkady Yartsev, Mats. R. Andersson, René A. J. Janssen* & Ergang Wang*. Advanced Energy Materials, 2017, 7, 1602722.
7. Stable All-Polymer Solar Cells based on a Diketopyrrolopyrrole-Isoindigo Acceptor Polymer
Zhaojun Li, Xiaofeng Xu,* Wei Zhang, Zewdneh Genene, Wendimagegn Mammo, Arkady Yartsev, Mats R. Andersson, René A. J. Janssen,* and Ergang Wang*. Journal of Materials Chemistry A, 2017, 5, 11693–11700.
8. High Performance All-Polymer Solar Cells by Synergistic Effects of Fine-Tuned Crystallinity and Solvent Annealing. Zhaojun Li, Xiaofeng Xu,* Wei Zhang, Xiangyi Meng, Wei Ma, Arkady Yartsev, Olle Inganäs, Mats R Andersson, René A. J. Janssen,* Ergang Wang*. Journal of the American Chemical Society, 2016, 138, 10935–10944.
9. Low Band Gap Polymer Solar Cells with Minimal Voltage Losses. Chuanfei Wang, Xiaofeng Xu,* Wei Zhang, Jonas Bergqvist, Yuxin Xia, Xiangyi Meng, Kim Bini, Wei Ma,* Arkady Yartsev, Koen Vandewal, Mats R. Andersson, Olle Inganäs, Mats Fahlman, Ergang Wang*. Advanced Energy Materials, 2016, 6, 1600148. (Back cover, hot paper on Oct. 2016)
10. Effects of Side Chain Isomerism on the Physical and Photovoltaic Properties of Indacenodithieno[3,2-b]thiophene–quinoxaline Copolymers: Toward a Side Chain Design for Enhanced Photovoltaic Performance. Xiaofeng Xu, Zhaojun Li, Olof Bäcke, Kim Bini, David I. James, Eva Olsson, Mats R. Andersson,* Ergang Wang*. Journal of Materials Chemistry A, 2014, 2, 18988–18997.
为了解决以上问题,中国海洋大学徐晓峰教授课题组和刘爽副教授课题组以纤维素作为主体材料,通过理论计算和结构设计,构筑了一体式自校正的界面蒸发体。合理的结构组成赋予了蒸发体稳定的自漂浮特性和出色的水蒸发性能。此外,蒸发体还可以通过吸附和蒸发的方式净化含Co2+废水,之后通过高温煅烧处理吸附后样品获得了Co3O4/C催化剂,其具有较好的CO催化氧化活性。
自漂浮和抗倾覆是蒸发体结构设计的关键。因此,我们通过理论计算确定了各结构组件的参数,并进行了相关的性能测试。蒸发体在水中能够稳定地漂浮,推动蒸发体到一定程度后,蒸发体能够在~140 ms时往回翻转,并在~180 ms时恢复到原来的垂直漂浮状态。这一过程可以在任何位置进行,无需任何干预,说明蒸发体具有极好的自校正能力。在流动水中进行了动态抗倾覆试验,蒸发体在持续高速振荡下,始终能够直立返回,表现出良好的抗倾覆性能。
合理的结构设计可以实现蒸发体光吸收、热分布、水扩散和环境能量输入的协同管理。在1个太阳下,该蒸发体可以获得4.21 kg m−1 h−1的超高水蒸发速率。得益于蒸发体的高长径比结构和环境能量输入,所构筑的单级太阳能水净化装置的最大淡水收集速率为~3.46 L m−2 h−1,超过了大多数单级和多级太阳能蒸馏器。此外,蒸发体可以同时以蒸发和吸附的方式净化含Co2+废水。而通过热解含Co2+气凝胶得到的Co3O4/C催化剂表现出了良好的CO催化氧化活性。这项工作为开放水域中使用的界面蒸发体的设计提供了新的见解,并为废水净化后的受污染样品的处理提供了一种有效方法。
论文信息:
Efficient Solar-Powered Interfacial Evaporation, Water Remediation, and Waste Conversion Based on a Tumbler-Inspired, All-Cellulose, and Monolithic Design
Jintao He, Na Li, Shuxue Wang, Shuai Li, Jingjing Li, Liangmin Yu, Shuang Liu*, Petri Murto, Xiaofeng Xu*
Advanced Sustainable Systems
DOI: 10.1002/adsu.202200256
原文链接:https://onlinelibrary.wiley.com/doi/10.1002/adsu.202200256