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Journal of Energy Chemistry 2023年第11期86卷 9-15,I0001页

作者： Qi Cao Yixin Zhang Xingyu Pu Junsong Zhao Tong Wang Kui Zhang Hui Chen Xilai He Jiabao Yang Cheng Zhang xuanhua li State Key Laboratory of Solidification Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi'an 710072ShaanxiChina School of Chemistry and Chemical Engineering Anhui University of TechnologyMaanshan 243032AnhuiChina

Interfacial imperfections between the perovskite layer and the electron transport layer(ETL)in perovskite solar cells(PSCs)can lead to performance loss and negatively influence long-term operational ***,we introduce an interface engineering method to modify the interface between perovskite and ETL by using multifunctional carbon dots(CDs).C=O in the CDs can chelate with the uncoordinated Pb2+in the perovskite material,inhibit interfacial recombination,and enhance the performance and stability of *** addition,–OH in CDs forms hydrogen bonds with I-and organic cation in perovskite,inhibiting light-induced I2release and organic cation volatilization,causing irreversible degradation of perovskite films,thereby enhancing the long-term operational stability of ***,we achieve the champion inverted device with an efficiency of 24.02%.The CDs-treated PSCs exhibit high operational stability,and the maximum power point tracking only attenuates by 12.5%after 1000 *** modification engineering supported by multifunctional quantum dots can accelerate the road to stable PSCs.

关键词： Interfacial engineering Carbon dots Non-radiative recombination

In-MOF-derived In_(2)S_(3)/Bi_(2)S_(3) heterojunction for enhanced photocatalytic hydrogen production

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Frontiers in Energy 2023年第5期17卷 654-663页

作者： Sibi liU Yijin WANG Youzi ZHANG Xu XIN Peng GUO Dongshan DENG Jahan B.GHASEMI Miao WANG Ruiling WANG xuanhua li Research and Development Institute of Northwestern Polytechnical University in Shenzhen Shenzhen 518063China State Key Laboratory of Solidification Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China School of Chemistry University College of ScienceUnversity of TehranTehran 14155-6455Iran

Transition metal sulfides are commonly studied as photocatalysts for water splitting in solar-to-fuel ***,the effectiveness of these photoca-talysts is limited by the recombination and restricted light absorption capacity of *** this paper,a broad spectrum responsive In_(2)S_(3)/Bi_(2)S_(3)heterojunction is cons-tructed by in-situ integrating Bi_(2)S_(3)with the In_(2)S_(3),derived from an In-MOF precursor,via the high-temperature sulfidation and solvothermal *** from the synergistic effect of wide-spectrum response,effective charge separation and transfer,and strong heterogeneous interfacial contacts,the In_(2)S_(3)/Bi_(2)S_(3)heterojunction demons-trates a rate of 0.71 mmol/(g∙h),which is 2.2 and 1.7 times as much as those of In_(2)S_(3)(0.32 mmol/(g∙h))and Bi_(2)S_(3)(0.41 mmol/(g∙h)),*** paper provides a novel idea for rationally designing innovative heterojunc-tion photocatalysts of transition metal sulfides for photocatalytic hydrogen production.

关键词： photocatalytic hydrogen production wide-spectrum response metal sulfides MOFs derivative heterogeneous interfacial contact

Gadolinium-incorporated CsPbI_(2)Br for boosting efficiency and long-term stability of all-inorganic perovskite solar cells

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Journal of Energy Chemistry 2022年第7期31卷 9-17,I0001页

作者： Xingyu Pu Jiabao Yang Tong Wang Shuaici Cheng Qi Cao Junsong Zhao Hui Chen Yixin Zhang Tingting Xu Ilhom Tojiboyev Hadi Salari xuanhua li State Key Laboratory of Solidification Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXian710072.ShaanxiChina Queen Mary University of London Engineering School Northwestern Polytechnical UniversityXi’an 710129ShaanxiChina School of Chemistry and Chemical Engineering Northwestern Polytechnical UniversityXi’an 710129ShaanxiChina Institute Ion-Plasma and Laser Technologies Uzbekistan Academy of Sciences100125Durmon yuli 33TashkentUzbekistan Faculty of Physical Chemistry Shiraz UniversityShiraz 71345Iran

All-inorganic CsPbI_(2)Br perovskite solar cells(PSCs)have received extensive research interests ***,their low efficiency and poor long-term stability are still obstacles for further commercial ***,we demonstrate that high efficiency and exceptional long-term stability are realized by incorporating gadolinium(III)chloride(GdCl_(3))into the CsPbI_(2)Br perovskite *** incorporation of GdCl_(3) enhances the Goldschmidt tolerance factor of CsPbI_(2)Br perovskite,yielding a dense perovskite film with small grains,thus the a-phase CsPbI_(2)Br is remarkably ***,it is found that the GdCl_(3)-incorporated perovskite film achieves suppressed charge recombination and appropriate energy level alignment compared with the pristine CsPbI_(2)Br *** noticeable increment in efficiency from14.01%(control PSC)to 16.24%is achieved for GdCl_(3)-incorporated ***,the nonencapsulated GdCl_(3)-incorporated PSC exhibits excellent environmental and thermal stability,remaining over 91%or90%of the original efficiency after 1200 h aging at 40%relative humidity or 480 h heating at 85℃ in nitrogen glove box *** encapsulated GdCl_(3)-incorporated PSC presents an improved operational stability with over 88%of initial efficiency under maximum power point(MPP)tracking at 45℃ for1000 *** work presents an effective ion-incorporation approach for boosting efficiency and long-term stability of all-inorganic PSCs.

关键词： All-inorganic perovskite CsPbI_(2)Br Gadolinium incorporation Power conversion efficiency Long-term stability

Effective additive for enhancing the performance of Sb_(2)S_(3) planar thin film solar cells

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Journal of Materiomics 2021年第5期7卷 1074-1082页

作者： Hui Zhou Jian Han Xingyu Pu xuanhua li State Key Laboratory of Solidification Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University127 West Youyi RoadXi’an710072China Northwestern Polytechnical University-Queen Marry University of London(NPU-QMUL)Joint Research Institute of Advanced Materials and Structures(JRI-AMAS)127 West Youyi RoadXi’anXi’an710072China

Sb_(2)S_(3) is a promising photovoltaic absorber with appropriate bandgap,excellent light absorption coefficient and great ***,the power conversion efficiency(PCE)of Sb_(2)S_(3) planar thin film solar cells is unsatisfactory for further commercial application due to low crystallinity and high resistivity of Sb_(2)S_(3) ***,we introduce an additive of 4-Chloro-3-nitrobenzenesulfonyl Chloride(CSCl)to alleviate these *** CSCl molecular contains two terminal Cl with lone pair electrons,which have the interaction with Sb ***,the Sb_(2)S_(3) film with enhanced crystallization and low trap states has been obtained and the resistivity is also ***,CSCl additive raises the Fermi level of the Sb_(2)S_(3) film,thereby enhancing the transport of electron from Sb_(2)S_(3) to TiO_(2).Consequently,the optimal PCE of Sb_(2)S_(3) solar cells is raised from 4.20%(control device)to 5.84%.Our research demonstrates a novel additive to enhance the photoelectric performance of Sb_(2)S_(3) solar cells.

关键词： Sb_(2)S_(3) Solar cells Additive engineering Carrier transport High performance

Late Triassic Intracontinental Deformation of South Tianshan,Central Asia:Evidence from Syn-tectonic Sedimentation and Detrital Zircon Provenances of the Kuqa Depression

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Acta Geologica Sinica(English Edition) 2024年第3期98卷 548-568页

作者： QIN Xiang CHEN xuanhua SHAO Zhaogang ZHANG Yiping WANG Yongchao li Bing SU He WANG Ye liU Kui HAN Lele China Aero Geophysical Survey and Remote Sensing Center for Natural Resources Beijing 100083China Key Laboratory of Airborne Geophysics and Remote Sensing Geology MNRBeijing 100083China Chinese Academy of Geological Sciences Beijing 100037China School of Earth Sciences and Resources China University of Geosciences(Beijing)Beijing 100083China

The Tianshan range,a Paleozoic orogenic belt in Central Asia,has undergone multiple phases of tectonic activities characterized by the N-S compression after the early Mesozoic,including the far-field effects of the Cenozoic Indian-Asian ***,there are limited reports on the tectonic deformation and initiation of Triassic intracontinental deformation in the Tianshan *** this structural context is crucial for interpreting the early intracontinental deformation history of the Eurasian continent during the early *** strata and syn-tectonic sediments provide a rich source of information on tectonic activities and have been extensively used in the studies of orogenic *** on detail fieldwork conducted in this study,the middle-late Triassic Kelamayi Formation of the northern Kuqa Depression in the southern Tianshan fold-thrust belt has been identified as the typical syn-tectonic growth *** youngest detrital zircon component in two lithic sandstone samples from the bottom and top of the Kelamayi growth strata yielded U-Pb ages of 223.4±3.1 and 215.5±2.9 Ma,respectively,indicating that the maximum depositional age of the bottom and top of the Kelamayi growth strata is 226-220 and 218-212 *** geochronological distribution of detrital samples from the Early-Middle Triassic and Late Triassic revealed abrupt changes,suggesting a new source supply resulting from tectonic activation in the Tianshan *** coupling relationship between the syn-tectonic sedimentation of the Kelamayi Formation and the South Tianshan fold-thrust system provides robust evidence that the Triassic intracontinental deformation of the South Tianshan range began at approximately 226-220 Ma(during the Late Triassic)and ended at approximately 218-212 *** findings provide crucial constraints for understanding the intraplate deformation in the Tianshan range during the Triassic.

关键词： growth strata basin-mountain coupling Triassic Indosinian event Kuqa Depression South Tianshan

Tailoring the mercaptan ligands for high performance inverted perovskite solar cells with efficiency exceeding 21%

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Journal of Energy Chemistry 2021年第9期30卷 169-177页

作者： Shuangjie Wang Ziwei He Jiabao Yang Tongtong li Xingyu Pu Jian Han Qi Cao Bingyu Gao xuanhua li Research&Development Institute of Northwestern Polytechnical University in Shenzhen Shenzhen 518057China State Key Laboratory of Solidification Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China

Interface passivation engineering has been recognized as an effective way to simultaneously contribute to the optoelectronic characteristic and stability of perovskite solar cells(PSCs). Herein, a p-conjugated dual-ligand 1,4-phenylmercaptan(PHMT) is explored to rationally tailor the surface of perovskite *** experimental and theoretical results show that the PHMT presents planar structure and obvious electron delocalization characteristics, which allow it to anchor on the surface of perovskite with a certain orientation, thereby promoting the transport of interface charge. Moreover, the two sulfhydryl groups in PHMT reduce the trap density of the perovskite film by passivating under-coordinated lead ***, the PHMT-modified inverted device based on MAPbI_(3)(MA: methylammonium) achieves enhanced efficiency from 18.11%(control) to 21.11%, along with the ambient stability up to 3500 *** being placed at 85 °C for 500 h or illuminated for 600 h, the modified device remains over 89%or 86% of initial efficiency. This discovery opens a new window for the choice of passivators to improve the performance of PSCs.

关键词： Perovskite solar cells Stability Dual-ligand Passivation Mercaptan

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榆家梁选煤厂煤尘治理

洁净煤技术 2023年第S1期29卷 215-218页

作者：栗轩华国能神东煤炭洗选中心陕西榆林719315

为解决选煤厂煤尘治理困难的问题,榆家梁选煤厂研究了防治煤尘的各项技术,加强煤尘防治管理,结合智能化选煤厂建设以煤尘综合治理为目标,开展湿式除尘系统关键技术的应用研究,使用新设备高压雾化喷雾系统,新工艺胶带机无动力气流除尘法... 详细信息

为解决选煤厂煤尘治理困难的问题,榆家梁选煤厂研究了防治煤尘的各项技术,加强煤尘防治管理,结合智能化选煤厂建设以煤尘综合治理为目标,开展湿式除尘系统关键技术的应用研究,使用新设备高压雾化喷雾系统,新工艺胶带机无动力气流除尘法有效对胶带机产生的煤尘进行了防治,现场降尘效果良好,煤尘质量浓度符合国家标准,可改善现场作业环境,杜绝职业病发生。

关键词：选煤厂煤尘治理洗气机管理措施

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掺磷渣粉水泥基材料的抗化学腐蚀性能研究

金属矿山 2023年第2期 266-270页

作者：李轩花郑州商学院建筑工程学院河南郑州451200

以磷渣粉水泥基材料为例,研究了磷渣粉水泥基材料在不同化学腐蚀和冻融循环条件下力学、物理性质的变化规律,进而揭示了磷渣粉水泥基材料力学性质劣化和物理性质变化机理。结果表明:浸泡氯化钠和硫酸钠溶液的磷渣粉水泥基材料在溶液浓度... 详细信息

以磷渣粉水泥基材料为例,研究了磷渣粉水泥基材料在不同化学腐蚀和冻融循环条件下力学、物理性质的变化规律,进而揭示了磷渣粉水泥基材料力学性质劣化和物理性质变化机理。结果表明:浸泡氯化钠和硫酸钠溶液的磷渣粉水泥基材料在溶液浓度为3%以后,密度变化幅度很小。浸泡浓度为3%的硫酸钠溶液磷渣粉水泥基材料的强度略高于浸泡清水的磷渣粉水泥基材料,浸泡其他浓度的硫酸钠溶液磷渣粉水泥基材料的强度都小于浸泡清水磷渣粉水泥基材料,且在浸泡21 d后磷渣粉水泥基材料的强度也出现明显的下降趋势。随着冻融次数增大,磷渣粉水泥基材料的抗压强度逐渐降低,说明冻融循环作用具有削弱磷渣粉水泥基材料抵抗变形能力和降低承载力的作用;在同等冻融循环次数作用下,磷渣粉水泥基材料在氢氧化钠溶液中的抗压强度略大于硫酸钠和氯化钠溶液中的抗压强度。

关键词：化学腐蚀冻融循环氯化钠硫酸钠磷渣粉水泥基材料力学性质劣化物理性质

Multidentate anchoring through additive engineering for highly efficient Sb_(2)S_(3)planar thin film solar cells

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Journal of Materials Science & Technology 2021年第30期89卷 36-44页

作者： Jian Han Xingyu Pu Hui Zhou Qi Cao Shuangjie Wang Jiabao Yang Junsong Zhao xuanhua li State Key Laboratory of Solidification Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Northwestern Polytechnical University-Queen Marry University of London(NPU-QMUL)Joint Research Institute of Advanced Materials and Structures(JRI-AMAS)Xi’an 710072China

Sb_(2)S_(3)is a promising candidate for the flexible solar cells or the top subcells in tandem solar cells due to its wide-bandgap,less toxic,acceptable cost and progressive power conversion efficiency(PCE).However,the poor quality and high trap states of Sb_(2)S_(3)films limit the device performance further ***,we adopt a multidentate ionic liquid,tetramethylammonium hexafluorophosphate([TMA][PF_(6)])as a novel additive to address this *** octahedral[PF_(6)]~-contains six different oriented fluorine atoms with the lone pair electrons,which could coordinate with Sb atoms due to the multidentate ***,the high-quality Sb_(2)S_(3)film with low trap states has been ***,the Fermi level of the Sb_(2)S_(3)film has been upshifted,thereby showing an effective charge *** a result,all photovoltaic parameters of the optimized Sb_(2)S_(3)devices are obviously enhanced,boosting the final PCE from 4.43(control device)to 6.83%.Our study about the multidentate anchoring is manifested to be an effective method to enhance the Sb_(2)S_(3)device performance.

关键词： Sb_(2)S_(3) Solar cells Additive engineering Multidentate anchoring Passivation

Surface modification with ionic liquid for efficient CsPbI2Br perovskite solar cells

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Journal of Materiomics 2021年第5期7卷 1039-1048页

作者： Xingyu Pu Jian Han Shuangjie Wang Hui Zhou Qi Cao Jiabao Yang Ziwei He xuanhua li State Key Laboratory of Solidification Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXián710072China Northwestern Polytechnical University-Queen Marry University of London(NPU-QMUL)Joint Research Institute of Advanced Materials and Structures(JRI-AMAS)Xián710072China

The presence of numerous trap states on the perovskite surface severely affects the performance of inorganic CsPbI_(2)Br perovskite solar *** modification has been proven to be an effective strategy to passivate the surface trap states of CsPbI_(2)Br ***,most modifiers behave high volatility and insulation,not enough to further develop the CsPbI_(2)Br solar ***,an ionic liquid of 1-viny-3-propionate ethyl imidazolium chloride([PEVIM]Cl)is applied to modify the CsPbI_(2)Br film surface,yielding a compact film with enhanced *** surface trap states of CsPbI_(2)Br film are effectively passivated via the interaction between carbonyl group of[PEVIM]Cl and uncoordinated metal cations of CsPbI_(2)Br perovskite,leading to charge recombination suppression and charge transport ***,the power conversion efficiency(PCE)of[PEVIM]Cl modified CsPbI_(2)Br device is obviously enhanced from 12.49% to 14.19% with an improved open-circuit voltage of 1.160 ***,the non-encapsulated device presents excellent thermal stability,still maintaining 91%PCE when heated at 85℃ in nitrogen atmosphere for 360 ***,the non-encapsulated device degrades only 11% PCE after stored at 50% relative humidity for 960 *** simple and efficient approach provides a promising direction to fabricate high-efficiency and stable inorganic perovskite devices.

关键词： Inorganic perovskites CsPbI_(2)Br Ionic liquid Surface modification High efficiency