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Post-treatment by an ionic tetrabutylammonium hexafluorophosphate for improved efficiency and stability of perovskite solar cells

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能源化学 2022年第1期64卷 8-15页

作者： Chaoqun Zhang Xiaodong Ren Xilai He Yunxia Zhang Yucheng Liu Jiangshan Feng Fei Gao Ningyi Yuan Jianning Ding Shengzhong (Frank) Liu Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationShaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an 710119ShaanxiChina School of Materials Science and Engineering Jiangsu Collaborative Innovation Center for Photovoltaic Science and EngineeringJiangsu Province Cultivation base for State Key Laboratory of Photovoltaic Science and TechnologyChangzhou UniversityChangzhou 213164JiangsuChina Micro/Nano Science and Technology Center Jiangsu UniversityZhenjiang 212013JiangsuChina Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationShaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an 710119ShaanxiChina Dalian National Laboratory for Clean Energy iChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina University of the Chinese Academy of Sciences Beijing 100039China

Interface engineering is an effective way to improve efficiency and long-term stability of perovskite solar cells (PSCs).Herein,an ionic compound tetrabutylammonium hexafluorophosphate (TP6) is adopted to passivate surface defects of the perovskite *** is found that TP6 effectively reduced the surface defects,especially at the grain boundaries where the defects are ***,the exposed long alkyl chains and fluorine atoms in the TP6 enhanced the moisture stability of the perovskite film due to its strong *** addition,the driving force of charge carrier separation and transport is increased by enlarged built-in ***,the power conversion efficiency (PCE) of PSCs is significantly improved from 20.59％ to 22.41％ by increased open-circuit vcltage (Voc) and fill factor(FF).The unencapsulated device with TP6 treatment exhibits better stability than the control device,and the PCE retains ～ 80％ of its initial PCE after 30 days under 15％-25％ relative humidity in storage,while the PCE of the control device declines by more than 50％.

关键词： Perovskite solar cell Interface engineering High hydrophobicity Ionic compound

Deciphering the Role of Fluoroethylene Carbonate towards Highly Reversible Sodium Metal Anodes

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Research 2022年第2期2022卷 259-269页

作者： Xueying Zheng Suting Weng Wei Luo Bo Chen Xiao Zhang Zhenyi Gu Haotian Wang Xiaolu Ye Xuyang Liu Liqiang Huang Xinglong Wu Xuefeng Wang Yunhui Huang Institute of New Energy for Vehicdes Shanghai Key Laboratory of Developmrent&Apication for Metali Functional MaterialsSchool of Materials Science and EngineringTongji UniversitShanghai 201804China Instiute of Physics Chinese Academy of SciencesSchoo of Plhysical SciencesUniversity of Chinese Academy of SciencesBeiing 100190China Key Laboratory of Advanced Civil Engineering Materials(Tongji University) Ministry of EducationShanghai 201804China Key Laboratory for UV Light Emiting Materials and TechnologyNortheast Normal UniversilyMinistry of EducationChangchumJilin 130024China Tianmu Lake Institute of Advanced Energy Storage Technologies Co. LtdLiyangJiangsu 213300China State Key Laboratory of Materials Procssing and Die&Mould Technology Schoo of Materials Science and Engineering Huazhong University of Science and TechnologyWuhanHubei 430074China

Sodium metal anodes(SMAs)sufer from extremely low reversibility(95%with conventional NaPF。salt at a regular concentration(1.0M).The peculiar role of FEC is *** via its involvement into the solvation structure,where a... 详细信息

Sodium metal anodes(SMAs)sufer from extremely low reversibility(<20%)in carbonate based clectrolytes-this piece of knowledge gained from previous studics has ruled out the application of carbonate solvents for sodium metal ***,we overturn this conclusion by incorporating fluoroethylene carbonate(FEC)as cosolvent that renders a Na plating/stripping fficiency of>95%with conventional NaPF。salt at a regular concentration(1.0M).The peculiar role of FEC is *** via its involvement into the solvation structure,where a threshold FEC concentration with a coordination number>1.2 is needed in guaranteeing high Na reversibility over the ***,by incorporating an average number of 1.2 FEC molecules into the primary Na*solvation sheath,lowest unoccupied molecular orbital(LUMO)levels of such Nat-FEC solvates undergo further decrease,with spin electrons residing either on the O=C 0(O)moiety of FEC or sharing between Na*and its C=:O bond,which ensures a prior FEC decomposition in passivating the Na surface against other carbonate ***,by adopting cryogenic tranmission electron microscopy(cryo-TEM),we found that the Na filaments grow into substantially larger diameter from-400nm to>1 pum with addition of FEC upon the threshold *** crstalline and much thiner(-40 nm)slid-electrolyte interphase(SED)is consequently observed to uniformly wrap the Na surface,in contrast to the severely corroded Na as retrieved from the blank *** potence of FEC is further demonstrated in a series of"corrosive solvents"such as ethy!l acetate(EA)。trimethyl phosphate(TMP),and actonitrile(AN)enabling highly reversible SMAs in the otherwise unusable solvent systems.

关键词： electrolyte otherwise Highly

Pilot-Tests of the Coal-Fired Power Plant Indirect Coupling with Multi-Source Organic Solid Waste Incineration technology

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SSRN 2024年

作者： Zhang, Rui Cao, Jun Lei, Ling Cao, Yufei Liu, Dong Advanced Combustion Laboratory School of Energy and Power Engineering Nanjing University of Science and Technology Jiangsu Nanjing210094 China Key Laboratory of Thermal Control of Electronic Equipment Ministry of Industry and Information Technology Jiangsu Nanjing210094 China

The production of organic solid waste is increasing as the development of society. However, the investment of waste incineration power plant is very high and the thermal efficiency is very low. At the same time, the load of coal-fired power plant is suppressed due to the carbon neutralization policy. Therefore, using the existed coal-fired power plant to co-process the organic solid waste is a feasible method. In this paper, a coal-fired power plant indirect coupling with waste incineration technology based on flue gas circulation was proposed and studied on a 100 kW pilot-test bench. In this technology, the PCDD/Fs was reduced by a three stages controlling method, which adopts the blending of multi-source organic wastes, high-temperature decomposition and SCR catalyst decomposition, simultaneously. The effects of waste incineration coupling, replacement ratio of coal, and flue gas circulation on the combustion and pollutant emission characteristics of the system were studied. The experimental results indicate that the waste incineration coupling has minor influence on the temperature distribution and the toxicity of fly ash of the coal-fired furnace. The NO, HCl, and PCDD/Fs concentrations of flue gas of coal-fired furnace generally decrease as the replacement ratio of coal increases, while the SO2 concentration increases. With the help of three stages controlling method or the flue gas circulation, the PCDDFs concentration of the flue gas of coal-fired furnace can be much lower than 0.1 TEQ ng/Nm3. © 2024, The Authors. All rights reserved.

关键词： Coal fired power plant

Interface coupling photocatalysts Ni-NiO@CNFs/ZnIn2S4-Vs for efficient photothermal synergistic catalytic hydrogen evolution

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SSRN 2024年

关键词： Hydrogen production

One-step Condensation/copolymerization of VTES and DVB for Self-assembly Bionic Superhydrophobic Surface Coating and Study on Oil-water Separation

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Journal of Bionic Engineering 2021年第3期18卷 559-573页

作者： Ruilong Zhang Zhiping Zhou Yi Wang Xiaohui Dai Li Chen Jiangdong Dai Research School of Polymeric Materials School of Materials Science and EngineeringJiangsu UniversityZhenjiang 2120133China State Key Laboratory of NBC Protection for Civilian Beijing 102205China Institute of Green Chemistry and Chemical Technology Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu ProvinceSchool of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang 212013China

Mimicry of nature drives the development of bionic *** superhydrophobic materials are a kind of high-efficiency materials to handle oil spills and water ***,the stability of surface coatings of the superhydrophobic materials remains a ***,a new category of self-assembly bionic superhydrophobic surface coating was prepared via one-step condensation/copolymerization of vinyltriethoxysilane(VTES)and divinylbenzene(DVB),which realized the close combination of covalent bonds between organic(***)and inorganic matter(***),and avoided the swelling of polydivinylbenzene(PDVB)in the process of collection of oil from *** organic-inorganic hybrid polymer could self-assembly deposit on the surface of sponge even other *** example,P(VTES-DVB)-Si0_(2)/MS obtained by assembling P(VTES-DVB)-Si0_(2)on the surface of Melamine Sponge(MS)exhibited superhydrophobicity with a Water Contact Angle(WCA)of 157.3,the optimal adsorption capacity of 77 g g 136 g g-1 for diverse oils,and an excellent separation efficiency of 99.3%.Besides,the excellent acid and alkali resistance of P(VTES-DVB)-Si0_(2)/MS suggested the potential value in practical oil-water separation.P(VTES-DVB)-Si0_(2)showed the outstanding hydrophobic performance by using as coating on different *** work provided a new idea about the stable combination of organic and inorganic matter in the surface modification.

关键词： superhydrophobic surface coating oil-water separation condensation copolymerization self-assembly organic-inorganic hybridism

Quantitative evaluation of intensity fidelity of superresolution reconstruction for structured illumination microscopy

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Journal of Innovative Optical Health Sciences 2025年第1期18卷 153-163页

作者： Yujun Tang Linbo Wang Gang Wen Hui Li School of Biomedical Engineering(Suzhou)Division of Life Sciences and Medicine University of Science and Technology of China Suzhou 230041 P.R.China Jiangsu Key Laboratory of Medical Optics Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences Suzhou 215163P.R.China Laboratory of Advanced Theranostic Materials and Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 P.R.China

Super-resolution structured illumination microscopy(SR-SIM)relies heavily on post-processing reconstruction to obtain high-quality SR images from raw *** many SIM reconstruction algorithms have been developed to recover fine cellular structures with high fidelity even from the noisy data,whether the pixel intensities of reconstructed SR images are still proportional to the original fluorescence intensity has been less *** linearity between the intensity before and after reconstruction is de fined as the intensity ***,we proposed a method to evaluate the reconstructed SR image intensity fidelity at different spatial *** the proposed metric,we systematically investigated the impact of the key factors on the intensity fidelity in the standard Wiener-SIM reconstructions with simulated data,then evaluated the intensity fidelity of the SR images reconstructed by representative open-source *** work provides a reference for SR-SIM image intensity fidelity improvement.

关键词： Structured illumination microscopy super-resolution image reconstruction intensity fidelity spectrum optimization

Tensile Performances of Continuous Fiber Reinforced Thermoplastic Composites with holes processed by 3D Printing, Laser and Drilling 8

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Tensile Performances of Continuous Fiber Reinforced Thermopl...

2022 8th International Conference on Mechanical Engineering, Materials and Automation technology, MMEAT 2022

作者： Chen, Wei Zhang, Qiuju School of Mechanical Engineering Jiangnan University Wuxi214122 China Key Laboratory of Advanced Food Manufacturing Equipment and Technology of Jiangsu Province Jiangnan University Wuxi214122 China

The continuous fiber-reinforced thermoplastic composites (called CFRTPCs) have been used in transportation, aerospace, sports and leisure products because of their great green recyclability and mechanical performances. This study evaluated the 3D printing process for the rapid manufacturing of CFRTPCs. The effect of laser and drilling processes, the size and shape of holes on mechanical performances of CFRTPCs were evaluated individually and mutually. The results proved that the small holes and low fiber content helped improve the strain at break while the big holes and the high fiber content helped improve the ultimate tensile strength and elastic modulus. The ultimate tensile strength and elastic modulus of specimens with square or big holes were higher than those of samples with circle or small holes. The ultimate tensile strength and elastic modulus of specimens with circle holes by laser were higher than those of samples with circle holes by drilling while the trend of strain at break was opposite. The micro morphology of the tensile breakage was observed and analysed to study the failure mechanism. This work makes an important contribution to the design of 3D printed CFRTPCs parts with holes. © Published under licence by IOP Publishing Ltd.

关键词： Elastic moduli

Mesoporous Silica Microsphere Accompanying with a Redox Unit for Chiral Electroanalysis of Amino Acids in a Broad Range

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SSRN 2023年

作者： Tan, Lilan Wang, Fangqin Ma, Cong Cai, Wenrong Li, Junyao Wu, Datong Kong, Yong Jiangsu Key Laboratory of Advanced Materials and Technology School of Petrochemical Engineering Changzhou University Changzhou213164 China

Although chiral resolution by an electrochemical technique displays the advantages of high sensitivity and short operating time, it is still difficult for chiral discrimination of nonelectroactive chiral molecules, which can not give an electrochemical response by themselves. Herein, to address this bottleneck, a mesoporous silica microsphere coupled with a point chirality and ferrocene (Fc) was designed and synthesized via a facile strategy. We speculated that the response of the electroactive unit Fc acted as the probe instead of the testing enantiomers for chiral electroanalysis of nonelectroactive molecules. In addition, the high specific surface area contributed to interacting with sufficient enantiomers. The test conditions such as concentration, temperature, metal ions and pH were investigated in detail. Results indicated that amino acids including phenylalanine, threonine, alanine, lysine, cysteine, and proline were enantioselectively recognized in the response of peak current (IP) by the synthesized chiral electroactive material fixed on the surface of glassy carbon electrode as a working electrode. The largest IP ratios between different configurations for the testing samples were 1.64, 6.22, 1.76, 3.12, 1.77, and 1.32 under the optimized conditions, respectively. In brief, we are assured that the current methodology enlarges the testing scope of chiral electroanalysis regardless of the enantiomers with electroactive units. © 2023, The Authors. All rights reserved.

关键词： Amino acids

Facile Strategy to Prepare Ionic Chiral Porous Organic Polymer Bearing Good Conductivity for Chiral Electroanalysis of Tryptophan, Tyrosine, and Malic Acid

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SSRN 2023年

作者： Wang, Fangqin Tan, Lilan Cai, Wenrong Li, Junyao Wu, Datong Kong, Yong Jiangsu Key Laboratory of Advanced Materials and Technology School of Petrochemical Engineering Changzhou University Changzhou213164 China

Chiral selectors with good conductivity are seemed as the potential candidates for chiral electroanalysis. In this study, an ionic porous chiral polymer was synthesized through self-assembly imine condensation between 1,1’,1’’-(benzene-1,3,5-triyltris(methylene))tris(4-formylpyridin-1-ium) and (1S,2S)-1,2-diphenylethylenediamine. In this artificial synthesized porous organic polymer, the pyridinium unit acted as a conductive medium for electron transport. Meanwhile, chiral imines afforded the stereogenic interacting sites. As expected, N2 adsorption-desorption and electrochemical tests validated this kind of ionic material had the advantages of relatively high specific surface area and good conductivity. When the chiral porous polymer was modified onto the electrode surface as an electrochemical chiral selector, the testing enantiomers including tryptophan, tyrosine, and malic acid can be enantioselectively recognized, resulting in a clear chiral discrimination of peak current. Furthermore, the recognition results could be modulated by pH and metal ion contents. When the pH value of the testing solution was below or above the isoelectric point (amino acids), the chiral selector gave an inverse electrochemical signal. In brief, we are convinced that the current study can explore the potential of ionic chiral porous organic polymers in the field of chiral electroanalysis. © 2023, The Authors. All rights reserved.

关键词： Amino acids