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Cascade utilization of full spectrum solar energy for achieving simultaneous hydrogen production and all-day thermoelectric conversion

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Journal of Energy Chemistry 2024年第9期96卷 318-327页

作者： Tuo Zhang Liang Dong baoyuan wang Jingkuo Qu Xiaoyuan Ye Wengao Zeng Ze Gao Bin Zhu Ziying Zhang Xiangjiu Guan Liejin Guo International Research Center for Renewable Energy(IRCRE) State Key Laboratory of Multiphase Flow in Power EngineeringXi’an Jiaotong UniversityXi’an 710049ShaanxiChina

Solar-driven photocatalytic water/seawater splitting holds great potential for green hydrogen ***,the practical application is hindered by the relatively low conversion efficiency resulting from the inadequate utilization of solar spectrum with significant waste in the form of ***,current equipment struggles to maintain all-day operation subjected to the lack of light during ***,a novel hybrid system integrating photothermal catalytic(PTC)reactor,thermoelectric generator(TEG),and phase change materials(PCM)was proposed and designed(named as PTC-TEG-PCM)to address these challenges and enable simultaneous overall seawater splitting and 24-hour power *** PTC system effectively maintains in an optimal temperature range to maximize photothermal-assisted photocatalytic hydrogen *** TEG component recycles the low-grade waste heat for power generation,complementing the shortcoming of photocatalytic conversion and achieving cascade utilization of full-spectrum solar ***,exceptional thermal storage capability of PCM allow for the conversion of released heat into electricity during nighttime,contributing significantly to the overall power output and enabling PTC-TEG-PCM to operate for more than 12 h under the actual *** to traditional PTC system,the overall energy conversion efficiency of the PTC-TEG-PCM system can be increased by∼500%,while maintaining the solar-to-hydrogen *** advancement of this novel system demonstrated that recycling waste heat from the PTC system and utilizing heat absorption/release capability of PCM for thermoelectric application are effective strategies to improve solar energy *** flexible parameter designing,PTC-TEG-PCM can be applied in various scenarios,offering high efficiency,stability,and sustainability.

关键词： Hybrid solar energy conversion system Photocatalytic overall seawatersplitting Thermoelectric power generation Phase change materials All-day operation

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电晕极化对钛酸钡粉体压电光催化性能的影响

硅酸盐学报 2024年第9期52卷 2889-2899页

作者：杨伟雪卢袁真子王宝苑王炳博王梓鉴侯莹华东理工大学物理学院上海200237 中国科学技术大学物理学院合肥230026

采用溶胶-胶法制备钛酸钡(BaTiO_(3),BT)粉体,通过改变保温时间(2、5、12 h)获得了不粒径尺寸的BT纳米颗粒。将BT纳米粉体在6.56 kV电压下分别进行1 h电晕极化,探究极化前后晶格的畸变程度以及粉体的压电光催化性能。结果表明:随保温时... 详细信息

采用溶胶-胶法制备钛酸钡(BaTiO_(3),BT)粉体,通过改变保温时间(2、5、12 h)获得了不粒径尺寸的BT纳米颗粒。将BT纳米粉体在6.56 kV电压下分别进行1 h电晕极化,探究极化前后晶格的畸变程度以及粉体的压电光催化性能。结果表明:随保温时间延长,颗粒粒径尺寸增大,极化后晶体的晶格畸变程度增强,四方度提高。同时,极化使得3组粉体对染料的降解速率大幅提升,动力学速率常数分别为极化前的4.94、2.21、1.62倍,与晶格畸变程度呈现相同规律。其中,保温2 h的粉体电晕极化后对有机染料罗丹明B(RhB)的降解率在180 min内达到96.81%,具有最优的压电光催化性能,这为电晕极化在粉体催化领域的应用提供了实验参考。

关键词：钛酸钡压电光催化电晕极化罗丹明B

Direct observations of reaction zone structure in shock-induced ignition of methane air mixture

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Chinese Science Bulletin 2009年第13期54卷 2247-2255页

作者： wang GaoFeng MA ChengBiao wang baoyuan LIN QiZhao Department of Thermal Science and Energy Engineering University of Science and Technology of China Hefei 230027 China

Ignition of methane/air mixture by the passage of a shock wave is an important issue for understanding more details ofits gaseous *** experiments of shock-induced ignition of stoichiometric methane/air mixture were conducted on a shock tube *** reaction zone structure in weak and strong ignition cases were investigated by digital chemiluminescence imaging and planar laser induced fluorescence(PLIF) *** to smaller gradients in induced time in weak ignition,which provided more time to nonlinear chemical reaction process,the results show that the reaction structures are highly nonuniform in those weak ignition cases,which become more regular while induced shock waves become *** strong ignition case,it gives a typical detonation *** characteristics of reaction zone released by single-pulsed OH PLIF technique agreed well with other experimental measurements in this paper and were also in accord with the conclusions of previous *** successful implementation of the PLIF system has explored a new high temporally and spatially resolved method for the study ofinteraction between shock wave and gaseous matter in shock tube.

关键词：反应区结构空气混合物平面激光诱导荧光点火甲烷化学反应过程诱导时间气相爆轰

A Bulk‑Heterostructure Nanocomposite Electrolyte of Ce_(0.8)Sm_(0.2)O_(2‑δ)-SrTiO_(3) for Low‑Temperature Solid Oxide Fuel Cells

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Nano-Micro Letters 2021年第3期13卷 66-79页

作者： Yixiao Cai Yang Chen Muhammad Akbar Bin Jin Zhengwen Tu Naveed Mushtaq baoyuan wang Xiangyang Qu Chen Xia Yizhong Huang State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Key Laboratory of High Performance Fibers and ProductsEngineering Research Center of Technical TextilesMinistry of EducationCollege of Materials Science and EngineeringDonghua University201620 ShanghaiPeople’s Republic of China Key Laboratory of Ferro and Piezoelectric Materials and Devices of Hubei Province Faculty of Physics and Electronic ScienceHubei UniversityWuhan 430062HubeiPeople’s Republic of China School of Materials Science and Engineering Nanyang Technological UniversitySingapore 639798Republic of Singapore

Since colossal ionic conductivity was detected in the planar heterostructures consisting of fluorite and perovskite,heterostructures have drawn great research interest as potential electrolytes for solid oxide fuel cells(SOFCs).However,so far,the practical uses of such promising material have failed to materialize in SOFCs due to the short circuit risk caused by *** this study,a series of fluorite/perovskite heterostructures made of Sm-doped CeO2 and SrTiO3(SDC–STO)are developed in a new bulk-heterostructure form and evaluated as *** prepared cells exhibit a peak power density of 892 mW cm−2 along with open circuit voltage of 1.1 V at 550°C for the optimal composition of 4SDC–*** electrical studies reveal a high ionic conductivity of 0.05–0.14 S cm^−1 at 450–550°C,which shows remarkable enhancement compared to that of simplex *** AC impedance analysis,it has been shown that the small grain-boundary and electrode polarization resistances play the major roles in resulting in the superior ***,a Schottky junction effect is proposed by considering the work functions and electronic affinities to interpret the avoidance of short circuit in the SDC–STO *** findings thus indicate a new insight to design electrolytes for low-temperature SOFCs.

关键词： Bulk-heterostructure SOFC electrolyte Ionic conductivity Schottky junction Work function

A nanobody-based blocking enzyme-linked immunosorbent assay for detecting antibodies against pseudorabies virus glycoprotein E

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Journal of Integrative Agriculture 2024年第4期23卷 1354-1368页

作者： Huanhuan Lü Pinpin Ji Siyu Liu Ziwei Zhang Lei wang Yani Sun baoyuan Liu Lizhen wang Qin Zhao Department of Preventive Veterinary Medicine College of Veterinary MedicineNorthwest A&F University/Shaanxi Scientific Observing and Experimental Station of Veterinary Pharmacology and Diagnostic TechnologyMinistry of Agriculture and Rural AffairsYangling 712100China

Pseudorabies(PR)is an acute infectious disease of pigs caused by the PR virus(PRV)and results in great economic losses to the pig industry *** glycoprotein E(gE)-based enzyme-linked immunosorbent assay(ELISA)has been used to distinguish gE-deleted vaccine-immunized pigs from wild-type virus-infected pigs to eradicate PR in some *** has the advantages of small size and easy genetic engineering and has been a promising diagnostic ***,there were few reports about developing nanobody-based ELISA for detecting anti-PRV-gE *** the present study,the recombinant PRV-gE was expressed with a bacterial system and used to immunize the Bactrian ***,two nanobodies against PRV-gE were screened from the immunized camel by phage display ***,two nanobody-HRP fusion proteins were expressed with HEK293T *** PRV-gE-Nb36-HRP fusion protein was selected as the probe for developing the blocking ELISA(bELISA)to detect anti-PRV-gE *** optimizing the conditions of bELISA,the amount of coated antigen was 200 ng per well,and dilutions of the fusion protein and tested pig sera were separately 1:320 and 1:*** cut-off value of bELISA was 24.20%,and the sensitivity and specificity were 96.43 and 92.63%,*** detecting 233 clinical pig sera with the developed bELISA and a commercial kit,the results showed that the coincidence rate of two assays was 93.99%.Additionallly,epitope mapping showed that PRV-gE-Nb36 recognized a conserved conformational epitope in different reference PRV ***,great stability and low-cost nanobody-based bELISA for detecting anti-PRV-gE antibodies were *** bELISA could be used for monitoring and eradicating PR.

关键词： nanobody nanobody-HRP blocking ELISA PRV-gE antibody

Degradation of furan tebufenozide in laboratory and field trials

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Science China Chemistry 2010年第8期53卷 1818-1824页

作者： GUO Cong,LI DaHui,CHEN JinHui,GUO baoyuan,wang HuiLi & LI JianZhong Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing China

Furan tebufenozide is a newly developed insect growth regulator and has been applied as a pesticide in agriculture in *** degradation under both laboratory and field conditions was investigated,and the degradation kinetics was fitted by simple first order kinetics (SFO) model and first order double exponential (FOD) *** studies were conducted with or without light in five simulated media (sterilized deionized water,river water,soil solution,sterilized soil and natural soil).No dissipations of furan tebufenozide were observed in sterilized aqueous and soil media under light prevented conditions,whereas degradation occurred under all the other conditions in the *** from SFO and FOD models,DT50 in the dark and light laboratory conditions was in the range of 39.7-82.5 and 1.1-8.0 days,*** results indicated that microbes and light were the main factors for the degradation of the pesticide in the *** field trials,derived from the SFO model,DT50 and DT90 were 30.3 and 100.5 days,while derived from the FOD model,DT50 and DT90 were 28.9 and 274.9 days,*** with laboratory experiments,field trials were influenced by multiple ***,the SFO model could not fit experimental data as well as the FOD model did in field trials.

关键词： uran tebufenozide dissipation soil water degradation kinetics

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含电动汽车的虚拟电厂经济性优化调度

太阳能学报 2019年第8期40卷 2395-2404页

作者：袁桂丽王宝源华北电力大学控制与计算机工程学院

将不可控新能源、电动汽车与可控电源构建成虚拟电厂(VPP),通过虚拟电厂优化调度各组成部分出力,使虚拟电厂对外表现为有一定可控性的、稳定的发电单元,减小新能源与电动汽车单独入网运行时对电网造成的冲击。为实现上述功能,该文构建... 详细信息

将不可控新能源、电动汽车与可控电源构建成虚拟电厂(VPP),通过虚拟电厂优化调度各组成部分出力,使虚拟电厂对外表现为有一定可控性的、稳定的发电单元,减小新能源与电动汽车单独入网运行时对电网造成的冲击。为实现上述功能,该文构建含电动汽车的虚拟电厂经济优化调度模型,设计含电动汽车的虚拟电厂经济运行策略,在Matlab R2010a平台上采用粒子群算法优化各组成部分出力,并分析电动汽车渗透率和可控电源计划出力系数对虚拟电厂经济性和各机组出力的影响。仿真结果表明,通过电动汽车与可控电源联合出力能够弥补新能源出力偏差,降低可控机组旋转备用,提高虚拟电厂供电可靠性。

关键词：电动汽车可再生能源资源储能虚拟电厂优化调度

A NEW THRESHOLD MULTI-PROXY MULTI-SIGNATURE SCHEME

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Journal of Electronics(China) 2006年第4期23卷 560-563页

作者： Kang baoyuan Han Jingguang wang Qinju College of Mathematic Science and Computing Technology Central South University Changsha 410075 China

This paper proposes a threshold mult-proxy multi-signature scheme with share verification. In the scheme, a subset of original signers allows a designated group of proxy signers to sign on behalf of the original group. A message m has to be signed by a subset of proxy signers who can represent the proxy group. Then, the proxy signature is sent to the verifier group. A subset of verifiers in the verifier group can also represent the group to authenticate the proxy signature. In other words, some threshold values will be given to indicate the number of persons to represent a group to authorize the signing capability or to sign a message or to verify the proxy signature.

关键词： Cryptography Digital signature Multi-proxy Multi-signature

基于虚拟电厂“热电解耦”的负荷优化调度及经济效益分析

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中国电机工程学报 2017年第17期37卷 4974-4985页

作者：袁桂丽王琳博王宝源华北电力大学控制与计算机工程学院北京市昌平区102206

我国北方冬季供暖期,大量热电联产机组工作在"以热定电"运行模式下,造成了系统调峰能力不足,弃风形势严峻。能有效减少弃风的风电供热由于经济效益问题和调度平台尚未完善,难以大规模推广应用。针对上述问题,该文将一定供热区域内的热... 详细信息

我国北方冬季供暖期,大量热电联产机组工作在"以热定电"运行模式下,造成了系统调峰能力不足,弃风形势严峻。能有效减少弃风的风电供热由于经济效益问题和调度平台尚未完善,难以大规模推广应用。针对上述问题,该文将一定供热区域内的热电厂、风电场、光伏电站组成虚拟电厂,形成利益整体,并加入风电供热设备实现热电联产机组的"热电解耦"。首先描述了虚拟电厂的组成结构和运行方式,其次建立了虚拟电厂热电负荷优化调度模型,对比了不同的虚拟电厂运行策略,并采用自适应免疫遗传算法进行求解,实现了虚拟电厂内部热电负荷优化调度。通过算例分析,验证所建立模型的合理性与有效性;表明在虚拟电厂中加入风电供热设备的运行策略可以有效地减少出力偏差与环保代价,提高经济效益;风电供热容量在一定范围内越高或风光预测精度越高,虚拟电厂经济效益越好,同时体现了虚拟电厂作为一个利益整体的经济性优势。

关键词：热电联产机组虚拟电厂热电负荷优化调度风电供热出力偏差虚拟电厂运行策略