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Current progress in developing metal oxide nanoarrays-based photoanodes for photoelectrochemical water splitting

Science Bulletin 2019年第18期64卷 1348-1380页

作者： yongcai qiu Zhenghui Pan Haining Chen Daiqi Ye Lin Guo Zhiyong Fan Shihe Yang Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control School of Environment and EnergySouth China University of TechnologyGuangzhou 510006China State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640China Department of Materials Science and Engineering National University of SingaporeSingapore 117574Singapore School of Materials Science and Engineering Beihang UniversityBeijing 100191China School of Chemistry and Environment Beihang UniversityBeijing 100191China Department of Electronic and Computer Engineering The Hong Kong University of Science and TechnologyHong KongChina Department of Chemistry The Hong Kong University of Science and TechnologyHong KongChina Guangdong Key Lab of Nano-Micro Material Research School of Chemical Biology and Biotechnology Shenzhen Graduate SchoolPeking UniversityShenzhen 518055China

Solar energy driven photoelectrochemical(PEC) water splitting is a clean and powerful approach for renewable hydrogen production. The design and construction of metal oxide based nanoarray photoanodes is one of the promising strategies to make the continuous breakthroughs in solar to hydrogen conversion efficiency of PEC cells owing to their owned several advantages including enhanced reactive surface at the electrode/electrolyte interface, improved light absorption capability, increased charge separation efficiency and direct electron transport pathways. In this Review, we first introduce the structure,work principle and their relevant efficiency calculations of a PEC cell. We then give a summary of the state-of the-art research in the preparation strategies and growth mechanism for the metal oxide based nanoarrays, and some details about the performances of metal oxide based nanoarray photoanodes for PEC water splitting. Finally, we discuss key aspects which should be addressed in continued work on realizing high-efficiency metal oxide based nanoarray photoanodes for PEC solar water splitting systems.

关键词： Photoelectrochemical water splitting Metal oxide based nanoarray photoanodes Preparation strategies and growth mechanism

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Ultralong-life lithium metal batteries enabled by decorating robust hybrid interphases on 3D layered framworks

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Chinese Chemical Letters 2023年第5期34卷 610-615页

作者： Qiongjie Ke Qingshuai Xu Xuejun Lai Xianfeng Yang Huichun Gao Zaisheng Wang yongcai qiu School of Environment and Energy State Key Laboratory of Luminescent Materials and DeviceGuangdong Provincial Key Laboratory of Atmospheric Environment and Pollution ControlSouth China University of TechnologyGuangzhou 510000China EVE Energy Co. Ltd.Huizhou 516000China

Stable solid-electrolyte interphase(SEI)is crucial for advanced development of lithium metal ***,the continuous collapse and reconstruction of SEI will deplete fresh Li and electrolytes upon cycling,leading to irreversible capacity ***,we addressed this issue by pre-formation of artificial robust hybrid interphase on a 3D layered graphene/lithium metal framework,in which is constructed by LiF associated with Li2TiF 6generated by the in-situ reaction between the surfacial lithium and titanium fluoride contained *** as-obtained interphase can maintain the structure integrality and avoid continuous consumption of the fresh Li and *** a consequence,the Li symmetric cells achieve high-efficiency Li deposition and stable cycling over 3600 *** paired with LiFePO_(4)cathodes,the coin cells exhibit long lifespan(>800 cycles)with almost 88.3%retention of the initial capacity.

关键词： Lithium metal battery TiF_4 Artificial SEI Dendrite free 3D frameworks

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A dual plasmonic core-shell Pt/[TiN@TiO_(2)]catalyst for enhanced photothermal synergistic catalytic activity of VOCs abatement

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Nano Research 2022年第8期15卷 7071-7080页

作者： Anqi Li Qianpeng Zhang Shuaiqi Zhao Yanan Chong Peng Wu Yifei Li Xiaojing Jin Guangxu Chen yongcai qiu Shihe Yang Daiqi Ye Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control School of Environment and EnergySouth China University of TechnologyGuangzhou 510006China Department of Electronic and Computer Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Guangzhou HKUST Fok Ying Tung Research Institute NanshaGuangzhou 511458China State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640China Guangdong Key Lab of Nano-Micro Material Research School of Chemical Biology and Biotechnology Shenzhen Graduate SchoolPeking UniversityShenzhen 518055China

Volatile organic compounds(VOCs)are ubiquitous organic pollutants affecting atmospheric environment and human *** development of new efficient and environmentally friendly materials utilizing photothermal synergistic catalysis for purification of VOCs is still ***,we design and prepare a core–shell TiN@TiO_(2)nanostructure integrating with nanoscaled Pt(Pt/[TiN@TiO_(2)])by an attractive quenching *** strong light-harvesting capability of Pt and TiN components improve light-to-heat utilization efficiency by their intrinsic surface plasmon resonance *** TiO_(2)component upon the surface and the coexisting coupling effect of Pt0 and Pt2+enhance the photocatalytic effect of the *** a result,the catalytic performance is significantly improved with toluene(120 ppm)conversion of 100%under the gas hourly space velocity of 72,000 mL·g^(−1)·h^(−1)and light illumination of 500 mW·cm^(−2).The desired catalyst thus achieves highly efficient coupling effect of photocatalysis and light-to-heat conversion for promoting VOCs abatement.

关键词： core-shell Pt/[TiN@TiO_(2)]catalyst volatile organic compounds(VOCs)abatement photothermal synergistic catalysis full spectrum sunlight utilization

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Polyaniline-modified cetyltrimethylammonium bromide- graphene oxide-sulfur nanocomposites with enhanced performance for lithium-sulfur batteries

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Nano Research 2014年第9期7卷 1355-1363页

作者： yongcai qiu Wanfei Li Guizhu Li Yuan Hou Lisha Zhou Hongfei Li Meinan Liu Fangmin Ye Xiaowei Yang Yuegang Zhang i-LAB Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences Suzhou 215123 China

Conductive polymer coatings can boost the power storage capacity of lithiumsulfur batteries. We report here on the design and preparation--by combining a facile and green chemical deposition method with an oxidative polymerization approach--of polyaniline （PANI）-modified cetyltrimethylammonium bromide （CTAB）-graphene oxide （GO）-sulfur （S） nanocomposites with significantly enhanced performance in lithium-sulfur batteries. Such conductive polymer modified CTAB-GO-S nanocomposites as sulfur cathode materials can deliver high specific discharge capacities and long-term cycling performance, i.e., -970 mAh-g-1 at 0.2 C and -715 mAh-g-1 after 300 cycles, -820 mAh.g-1 at 0.5 C and -670 mAh.g-1 after 500 cycles, -770 mAh.K at 1 C and -570 mAh.g-~ after 500 cycles. The capacity decay was as low as 0.036% per cycle at 0.5 C, and 0.051% per cycle at 1 C. Under the same condition, batteries using PANI-modified CTAB-GO-S as cathodes exhibited higher specific capacity and higher average coulombic efficiency compared with CTAB-decorated GO-S and GO--S nano- composites. The improved performance can be attributed to the lower charge transfer resistance and the alleviated dissolution of polysulfides in the PANI- modified CTAB-GO-S cathodes.

关键词： polyaniline graphene oxide-sulfur lithium-sulfur batteries long-term cycling

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Morphology and property investigation of primary particulate matter particles from different sources

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Nano Research 2018年第6期11卷 3182-3192页

作者： Rufan Zhang Chong Liu Guangmin Zhou Jie Sun Nian Liu Po-Chun Hsu Haotian Wang yongcai qiu Jie Zhao Tong Wu Wenting Zhao Yi Cui Department of Materials Science and Engineering Stanford University Stanford CA 94305 USA Stanford Institute for Materials and Energy Sciences SLAC National Accelerator Laboratory 2575 Sand Hill Road Menlo Park CA 94025 USA

Particulate matter （PM） pollution has become a major environmental concern in many developing countries. PM pollution control remains a great challenge owing to the complex sources and evolution processes of PM particles. There are two categories of PM, i.e., primary and secondary PM particles, and the primary PM emissions play a key role in the formation of PM pollution. Knowledge of primary PM particle compositions, sources, and evolution processes is of great importance to the effective control of PM pollution. In order to characterize PM particles effectively, their fundamental properties including the morphology, concentration distribution, surface chemistry, and composition must be systematically investigated. In this study, we collected and analyzed six types of PM10 and PM2.s particles from different sources using an in situ sampling approach. The concentration distributions of PM particles were analyzed and comparative analysis of the morphologies, distributions, capture mechanisms, and compositions of PM particles was conducted using scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and energy-dispersive X-ray spectroscopy. We found that there were significant differences in the structures, morphologies, and capture mechanisms of PM2.5 and PM10 particles. The systematic comparative investigation in this work will benefit the study of evolution processes and the effective control of PM pollution in the future.

关键词： particulate matter 2.5(PM2.5) source analysis nanofiber filtration property distribution characterization

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华南师范大学大学李伟善***.:从前驱体形貌转化浅淡金属基多级多孔结构的合成及应用

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储能科学与技术 2017年第4期6卷 654-654,674,695,700,775,781,798,805页

作者： Min Chen Yueguang Zhang Lidan Xing Youhao Liao yongcai qiu Shihe Yang Weishan Li School of Chemistry and Environment South China Normal University Guangzhou 510631 China Engineering Research Center of MTEES (Ministry of Education) Research Center of BMET (Guangdong Province) Engineering Lab. of OFMHEB (Guangdong Province) Key Lab. of ETESPG (GHEI) and Innovative Platform for ITBMD (Guangzhou Municipality) South China Normal University Guangzhou 510006 China Suzhou Institute of Nano‐Tech and Nano‐Bionics Chinese Academy of Sciences Suzhou 215123 China Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong China College of Environment and Energy Guangzhou 510006 China

1引言多级多孔结构材料因其具有如下特点被广泛地应用于能源存储与转换领域：（1）可有效地避免纳米颗粒间的团聚,降低材料界面的界面张力;（2）相较于大颗粒团聚体可提供更多的反应活性位点,减少离子的迁移距离;（3）有利于电解液的浸... 详细信息

1引言多级多孔结构材料因其具有如下特点被广泛地应用于能源存储与转换领域：（1）可有效地避免纳米颗粒间的团聚,降低材料界面的界面张力;（2）相较于大颗粒团聚体可提供更多的反应活性位点,减少离子的迁移距离;（3）有利于电解液的浸润,提供更多的体积膨胀缓冲空间;（4）加强光散色。

关键词： Adv.Mater 金属基多孔材料次级颗粒多孔结构材料华南师范大学材料界面活性位点迁移距离团聚体

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Thermal pyrolysis of Si@ZIF-67 into Si@N-doped CNTs towards highly stable lithium storage

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Science Bulletin 2020年第6期65卷 452-459,M0003页

作者： Dun Jin Xianfeng Yang Yuqing Ou Mumin Rao Yaotang Zhong Guangmin Zhou Daiqi Ye yongcai qiu Yuping Wu Weishan Li School of Chemistry South China Normal UniversityGuangzhou 510006China Analytical and Testing Centre South China University of TechnologyGuangzhou 510640China Zhao Qing Outstanding Power Battery System Co. Ltd.Zhaoqing 526238.China Department of Materials Science and Engineering Stanford UniversityStanfordCA 94305USA Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control School of Environment and EnergySouth China University of TechnologyGuangzhou 510006China State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640China National and Local Joint Engineering Research Center of MPTES in High Energy and Safety LIBs Engineering Research Center of MTEES(Ministry of Education)and Key Laboratory of ETESPG(GHEI)South China Normal UniversityGuangzhou 510006China

Silicon is attracting considerable attention as an active anode material for advanced lithium-ion batteries due to its ultrahigh theoretical capacity. However, the reversible utilization of silicon-based anode materials is still hindered by the rapid capacity decay, as a consequence of the huge volume change of silicon during cycling. Herein, we use a Co-zeolitic imidazole framework(ZIF-67) to prepare silicon-wrapped nitrogen-doped carbon nanotubes(Si@N-doped CNTs) by controllable thermal pyrolysis. The asprepared nanocomposites can effectively prevent pulverization and accommodate volume fluctuations of silicon during cycling. It can deliver a highly reversible capacity of 1100 m Ah g-1 even after 750 cycles at a current density of 1000 m A g-1. As confirmed by an in situ transmission electron microscopy experiment, the remarkable electrochemical performance of Si@N-doped CNTs is attributed to the high electronic conductivity and flexibility of cross-linked N-doped CNTs network as a cushion to mitigate the mechanical stress and volume expansion. Furthermore, a full cell consisting of Si@N-doped CNTs anode and Li Fe PO4 cathode delivers a high reversible capacity of 1264 m Ah g-1 and exhibits good cycling stability(>85% capacity retention) over 140 cycles at 1/4 C(1 C = 4000 m A g-1) rate.

关键词： N-doped CNTs In situ growth Silicon nanoparticles Lithium storage Cyclic stability

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部分中心城区经济发展水平综合评价

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经济师 2005年第3期 43-44页

作者：徐君宝丘勇才厦门大学计划统计系福建厦门361005 厦门市思明区统计局福建厦门361004

文章采取 1 0项重要经济指标 ,利用 2 0 0 3年的数据 ,对 2 0个全国副省级以上城市中心城区进行主成分分析和聚类分析。然后对比两种分析结果 ,对各城区经济发展水平进行综合评价。

关键词：主成分分析聚类分析相关系数

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锰基氧化物催化降解VOCs的研究进展

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当代化工研究 2022年第21期 8-10页

作者：靳小静邬鹏丘勇才顺德职业技术学院轻化与材料学院广东528333 华南理工大学环境与能源学院广东510006

挥发性有机化合物(VOCs)是空气污染的主要来源之一,因其对环境和人体健康的严重威胁而受到广泛关注。催化氧化已被证明是一种高效的降解VOCs技术。而作为环境友好且低成本的材料,锰基氧化物成为热催化或光/热催化中降解VOCs最具竞争力... 详细信息

挥发性有机化合物(VOCs)是空气污染的主要来源之一,因其对环境和人体健康的严重威胁而受到广泛关注。催化氧化已被证明是一种高效的降解VOCs技术。而作为环境友好且低成本的材料,锰基氧化物成为热催化或光/热催化中降解VOCs最具竞争力和前景的候选材料。本文总结了近年来各种锰基氧化物催化剂(单一锰基氧化物、锰基复合氧化物、表面改性的锰基氧化物以及锰基整体催化剂)的研究进展。最后,提出了锰基氧化物催化氧化VOCs存在的问题及对未来研究进行展望。

关键词：锰基氧化物热催化光/热催化挥发性有机化合物

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静电纺纳米纤维防雾霾纱窗的研究进展

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合成纤维工业 2024年第3期47卷 68-73页

作者：李泳材仇小晗濮从政张坤毛雪西安工程大学纺织科学与工程学院陕西西安710048 西安工程大学功能性纺织材料及制品教育部重点实验室陕西西安710048

综述了近年来静电纺纳米纤维防雾霾纱窗的制备方法的研究进展,并阐述了防雾霾纱窗的评价方法。静电纺纳米纤维防雾霾纱窗包括单一聚合物纳米纤维防雾霾纱窗、聚合物/无机复合纳米纤维防雾霾纱窗、多功能型纳米纤维防雾霾纱窗等,具过滤... 详细信息

综述了近年来静电纺纳米纤维防雾霾纱窗的制备方法的研究进展,并阐述了防雾霾纱窗的评价方法。静电纺纳米纤维防雾霾纱窗包括单一聚合物纳米纤维防雾霾纱窗、聚合物/无机复合纳米纤维防雾霾纱窗、多功能型纳米纤维防雾霾纱窗等,具过滤效率高、重复使用率高、成本低等优点,但过滤阻力、透光度、疏水性等性能有待进一步提高。防雾霾纱窗评价方法应对关键参数过滤效率、透光度及疏水性能进行评价。指出未来静电纺纳米纤维防雾霾纱窗的研究重点是通过水热合成、化学气相沉积等化学改性技术在纳米纤维表面引入新颖的物理结构或化学组分,以实现过滤性能、疏水性能及透气性能的显著提升,同时赋予纳米纤维防雾霾纱窗抗紫外、杀菌杀病毒等功能特性。

关键词：纳米纤维静电纺丝防雾霾纱窗制备方法

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