Synergistic Optimization of Buried Interface by Multifunctional Organic-Inorganic Complexes for Highly Efficient Planar Perovskite Solar Cells

For the further improvement of the power conversion efficiency(PCE)and stability of perovskite solar cells(PSCs),the buried interface between the perovskite and the electron transport layer is crucial.However,it is challenging to effectively optimize this interface as it is buried beneath the perovskite film.Herein,we have designed and synthesized a series of multifunctional organic-inorganic(OI)complexes as buried interfacial material to promote electron extraction,as well as the crystal growth of the perovskite.The OI complex with BF4−group not only eliminates oxygen vacancies on the SnO_(2) surface but also balances energy level alignment between SnO_(2) and perovskite,providing a favorable environment for charge carrier extraction.Moreover,OI complex with amine(−NH_(2))functional group can regulate the crystallization of the perovskite film via interaction with PbI2,resulting in highly crystallized perovskite film with large grains and low defect density.Consequently,with rational molecular design,the PSCs with optimal OI complex buried interface layer which contains both BF4−and−NH_(2) functional groups yield a champion device efficiency of 23.69%.More importantly,the resulting unencapsulated device performs excellent ambient stability,maintaining over 90%of its initial efficiency after 2000 h storage,and excellent light stability of 91.5%remaining PCE in the maximum power point tracking measurement(under continuous 100 mW cm−2 light illumination in N2 atmosphere)after 500 h.

A Novel Organic-Inorganic Complex: Synthesis and Crystal Structure of [Ca(DMSO)_5(H_2O)]_2SiMo_(12)O_(40)

A novel organic-inorganic complex [Ca(DMSO)5(H2O)]2SiMo12O40 was synthesized from CaCl2, DMSO and H4SiMo12O40nH2O in mixed solvent of acetonitrile and water. Its structure was characterized with elemental analysis, IR and X-ray diffraction analysis.

Synthesis and crystal structure of an organic-inorganic complex [Cu(DMF)_3(H_2O)_2]_2[SiMo_(12)O_(40)]·2H_2O

The synthesis and crystal smacture of an polyoxometalate-based organic-inorganic complex [Cu（DMF）3（H2O）212[SiMo12O40].2H2O （DMF = N, N-dimethyl formamide） is described in this article. It was characterized using elemental analysis, thermal analysis, infrared, ultraviolet, and electron spin resonance spectroscopic studies. The X-ray crystallography analysis showed that the copper centers are pentacoordinated to show the square pyramidal geometry, and the polyanion [SiMo12O40]4- which is semi-coordinated to the copper（I/） centers prevents the existence of a sixth ligand. In addition, the intracationic hydrogen interaction enhanced the stability of the copper coordination cation.

Synthesis and Crystal Structure of an Organic-inorganic Complex [Hg(DMSO)_2(H_2O)]_2 [GeW_(12)O_(40)]·DMSO·H_2O

An organic-inorganic mercury coordination compound [Hg（DMSO）2（H2O）]2 [GeW12O40]· DMSO·H2O （DMSO =dimethyl sulfoxide） has been synthesized and characterized by IR, UV spectra, elemental analysis, TG-DTA and X-ray single-crystal diffraction. Structural analysis revealed that in the title compound, the mercury is three-coordinated to show the distorted trigonal cone geometry, and depending on the electrostatic interaction to connect the polyanion [α-GeW12O40]^4-. TG-DTA study manifests the decomposition temperature of the polyanion framework in the title compound is 513.5℃, which is much higher than that of the anion framework. It means that the formation of the organic-inorganic mercury coordination compound made the polyanion [α-GeW12O40]^4- to he more stable.

Synthesis and Structure of a Novel Chain-like Inorganic-organic Hybrid Constructed from Isopolyanion and Oxalato-bridged Dinuclear Copper Complex

A novel inorganic-organic hybrid based on isopolyanion,{[Cu2（phen）2（μ-ox）][H2Mo8O26]}·4EtOH·Et2O（1） （phen=phenanthroline,ox=oxalate）,was synthesized under open-air mild reaction conditions,and characterized by elemental analysis,IR,ICP,TG and single crystal X-ray diffraction analysis.The crystal structure belongs to triclinic system with space group Pī and cell parameters：a=1.1075（5） nm,b=1.1608（5） nm,c=1.3333（5） nm,α=91.683（5）o,β=113.996（5）o,γ=112.170（5）o,V=1.4159（10） nm3,Mr=2017.44,Z=1,Dc=2.366 g/cm3 and F（000）=980.0.The structure of hybrid 1 is a 1D chain constructed of alternating octamolybdate isopolyanions [β-（Mo8O26）4-] and oxalato-bridged dinuclear copper complex cations [Cu2（phen）2（μ-ox）]2＋.Ultimately,a 3D supramolecular network was formed by hydrogen bond interactions among the adjacent chains.The result shows that hybrid 1 is the first example of inorganic-organic hybrid constructed from isopolyanion and oxalato-bridged dinuclear copper complex fragment （CCDC No.665101）.

Synthesis,Structure and Properties of a Novel Copper(Ⅱ)-2,2'- biimidazole Complex-supported Compound:[Cu(H_2biim)_2]{[Cu(H_2biim)_2 ]_2[H_(10)W_(12)O_(44)]}·8H_2O

A new copper（II）-2,2＇-biimidazole metal-organic POMs-supported compound [Cu（H2biim）2]{[Cu（H2biim）212[H10W12O44]}＇8H2O （H2biim = 2,2＇-biimidazole） has been success- fully synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction, IR spectroscopy, elemental analysis and TG. The crystal adopts space group Pi with a = 11.800（2）, b = 13.437（3）, c = 13.685（3） A, V = 1922.5（7） A3, D,. = 3.507 g/cm3, C36H62Cu3N24W12O52, M,. = 4059.92, F（000） = 1837,μ = 18.796 mm-1, Z = 1, R = 0.0579 and wR = 0.1465 for 8734 observed reflections （I 〉 2σ（I））. X-ray crystallography analysis exhibits that the title compound consists of one [H10W12044]6- polyanion and three [Cu（H2biim）2] units. And significant π-π stacking interactions and intermolecular O-H-,.O or N-H.＇-O hydrogen-bonding interactions lead to a three-dimensional supramolecular framework. Thermal stability and magnetic property of the complex have also been investigated.

Synthesis, Characterization, and Properties of Supported Tungstozincate Bridged by Co(Ⅱ) Complex Fragment

[Co^11（phen）3]2[{（ZnW12O40）Co^11（phen）2（H2O）}2Co^11（trien）2（NaH2O）2]·3H2O was synthesized via hydrothermal technique and characterized with elemental analyses, IR spectroscopy, TGA-DTA, and variable temperature magnetic susceptibility. The compound crystallized in the monoclinic system with the space group P21/n, a=1.8210 nm, b=2.3592 nm, c=2.2932 nm, β=110.31°, V=9.239 nm^3, Z=2, R1=0.0827. The compound consists of two coordination cations, three lattice water molecules, and a macroanion [{（ZnW12O40）Co（phen）2（H2O）}2Co（C6H18N4）2·（NaH2O）2]^4- in which each supported Keggin anion [（ZnW12O40Co^11（phen）2（H2O）]^4- acts as a ligand to coordinate to central bridging Co^2＋ ion via a terminal oxygen atom. Hydrogen bonds are responsible for the construction of 3D architecture of the compound. The compound is paramagnetic with a weak antiferromagnetic interaction（0=-46.796 K）.

饮用水处理过程中天然有机物引起的超滤膜污染机制研究进展

天然有机物(NOM)存在于地表水、地下水和土壤水中。超滤(UF)膜技术具有运行压力小、设备集成化程度高和占地面积小等优势,但NOM造成的复合污染使超滤膜在水处理的应用管理变得复杂。本文在概述NOM的来源、组成和化学性质的基础上,通过分析不同结构特征的NOM间的相互作用机制,阐述了不同结构特征的NOM的复合膜污染。从离子与NOM络合的影响因素、络合对NOM理化性质的影响等,分析了离子与NOM的复合膜污染。最后,分析了目前研究面临的挑战,并对未来的发展方向进行了展望。

粪/菌秸秆条带混施对黑土有机无机复合体组成及有机碳分布特征的影响

为探究玉米秸秆混施畜禽粪/生物菌剂条带还田条件下黑土有机无机复合体组成及有机碳分布变化特征,本研究于2020年4月在吉林省榆树市黑土区按等碳原则进行1次条带施肥,第2年条带变苗带不施肥,秸秆原位粉碎后,将下茬作物播种行上的秸秆向两侧休闲带堆放形成秸秆覆盖条带,进行连续两年的秸秆原位还田试验。本试验共设4个处理,即条带秸秆覆盖+鸡粪(SO)、条带秸秆覆盖+牛粪(SN)、条带秸秆覆盖+生物菌剂(SJ)和条带秸秆覆盖(SCK)。采用胶散分组法提取有机无机复合体,分为水质分散组(G0)、钠质分散组(G1)和超声分散组(G2)。结果表明:添加畜禽粪及菌剂的处理土壤各组分复合体及其碳含量相比SCK有所增加,SJ处理增加最多,2022年SJ处理G0复合体含量和其碳含量分别增加38 g∙kg^(−1)和1.74 g∙kg^(−1)。各畜禽粪及菌剂处理不同组分复合体含量及其有机碳含量存在一定差异。2021年,SJ和SO处理G1复合体含量相比SN处理显著增加33.46~37.66 g∙kg^(−1),有机碳含量增加0.69~0.78 g∙kg^(−1);SJ、SO处理G2复合体有机碳含量相比SN处理也显著增加。2022年,SJ、SO处理G0复合体有机碳含量与SN处理相比增加显著,其最高增加量为1.02 g∙kg^(−1);SJ处理G1复合体含量相比SO、SN处理分别显著增加41.25 g∙kg^(−1)、49.92 g∙kg^(−1);SJ处理G2复合体有机碳含量最高。两年间,SJ处理G0复合体含量相比SO处理增加23.35~23.74 g∙kg^(−1)。扫描电镜和X射线衍射物相分析结果表明,粪/菌秸秆混施有效保持了复合体表面结构,提高了有机碳转化率。综上,玉米秸秆混施生物菌剂处理更有利于土壤肥力的提升和土壤碳固存的增强,可选为最优还田模式。

基于“芳酸结构形貌调控的Zn-MOFs制备表征”构建无机化学综合实验

金属有机框架化合物(MOFs)是有机配体与金属离子或金属簇通过配位键组装而成的具有分子内孔隙结构的有机-无机杂化材料,具有比表面积大、孔隙率高、孔径可调、稳定性好等特征,在催化、能源、药物输送及传感等领域广泛应用。MOFs的物性特征与其形貌及组成密切相关,故形貌调控至关重要。本文以对苯二甲酸、均苯三甲酸、2,6-萘二羧酸为有机配体,以锌离子为金属中心,采用室温沉淀法制备Zn-MOFs纳米材料体系,基于有机配体调控Zn-MOFs形貌。采用扫描电子显微镜表征其形貌,X-射线衍射光谱表征其晶体结构,红外光谱表征化学组成,紫外可见吸收光谱表征其光谱特性,并修饰至玻碳电极表面,构建光电化学界面,考察三种Zn-MOFs纳米材料的光电转换性能。通过该综合实验,有助于延伸无机化学金属配合物之理论基础,拓展光电化学及化学修饰电极知识领域,有利于强化科研创新意识、提升材料制备及表征相关实验技能、建立数据处理与结果分析的思维模式,有助于培养学生立志创新、勇于探索之精神。

Hydrothermal Synthesis and Structural Characterization of a Novel Organic-Inorganic Hybrid Compound {[Cu(2,2′-bpy)_2]_2-Mo_8O_(26)}

A novel organic-inorganic hybrid compound {[Cu(2,2'-bpy)_2]_2Mo_8O_(26)} hasbeen hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction.The compound crystallizes in the orthorhombic space group, Pna2_1, with a = 2.4164(5), b =1.8281(4), c = 1.1877(2) nm, V = 5.247(2) nm^3, Z = 4, and final R_1 = 0.0331, wR_2 = 0.0727. Thestructure consists of discrete {[Cu(2,2'-bpy)_2]_2Mo_8O_(26)} clusters, constructed from aβ-octamolybdate subunit [Mo_8O_(26)]^(4-) covalently bonded to two [Cu(2,2'-bpy)_2]^(2+)coordination complex cations via bridging oxo groups. In addition, the spectroscopic properties andthermal behavior of this compound have been investigated by spectroscopic techniques (UV-vis, IR,Raman and EPR spectra) and TG analysis.

Crystal Structures and Photoluminescence of Two Zinc(Ⅱ) and Silver(Ⅰ) Complexes with 6,7-Dicyanodipyridoquinoxaline

Two d10 metal-organic complexes, [ZnBr2（DICNQ）2] （1） and [AgCN（DICNQ）]2（2）, were prepared from ZnBr2 and AgCN with 6,7-dicyanodipyridoquinoxaline （DICNQ） by solvothermal reactions, respectively, and characterized by single-crystal X-ray diffraction analyses, IR spectroscopy, and photoluminescent measurement. Compound 1 crystallizes in monoclinic, space group C2/c with a=8.436（2）, b=13.011（3）, c=27.565（6）,β=97.90（3） , V=2997.0（1）3 , Z=4, Mr=789.73, Dc=1.750 g/cm3 ,μ=3.533 mm-1 , F（000）=1552, S=1.007 and T=293（2） K. The final R=0.0739 and wR=0.1380 for 1561 observed reflections with I 〉 2σ（I）. Compound 2 crystallizes in monoclinic, space group P21/c with a=24.202（6）, b=7.1619（17）, c=18.339（5）,β=111.8380（10） , V=2950.6（1）3 , Z=4, Mr=832.32, Dc=1.874 g/cm 3 ,μ=1.382 mm-1 , F（000）=1632, S=1.002 and T=293（2） K. The final R=0.0389 and wR=0.1257 for 4812 observed reflections with I 〉 2σ（I）. Both compounds form packing structures by π…π stacking interactions and C-H…N or C-H…Br hydrogen-bonding interactions. Compounds 1 and 2 show similar photoluminescent spectra with emission maxima at ca. 430 nm in diluted acetonitrile solution （1×10-5 mol L-1 ） at room temperature.

松辽盆地古龙页岩纳米孔缝形成机制与页岩油富集特征

松辽盆地白垩系古龙页岩油储集层为富有机质、高黏土的陆相页岩,夹少量薄层的钙质砂岩和白云岩,其孔缝体系和页岩油富集规律研究还比较薄弱。基于松辽盆地古龙页岩氩离子抛光-场发射扫描电镜、能谱分析、高压压汞、低温氮气吸附、荧光薄片鉴定、X射线衍射全岩矿物分析、地球化学等实验分析数据,研究了古龙页岩有机-无机孔缝体系及其与页岩油富集的关系。结果表明:①古龙页岩发育基质孔和微裂缝构成的双孔介质储集体系,基质孔为页岩油提供富集空间,微裂缝为页岩油提供储集空间和渗流通道;②受矿物演化、有机质生烃和原油裂解转化等多因素控制,古龙页岩在不同演化阶段发育不同的孔缝组合,其中在成熟演化阶段主要发育微米级溶蚀孔和有机黏土复合孔缝,高成熟演化阶段主要发育纳米级有机黏土复合孔缝和页理缝;③古龙页岩油的富集与孔缝组合演化具有耦合关系,低成熟演化阶段页岩油主要富集于无机粒间孔和晶间孔中,成熟演化阶段页岩油主要富集于溶蚀孔和有机黏土复合孔缝内,油质较重,高成熟演化阶段页岩油主要富集于有机黏土复合孔缝和页理缝中,油质变轻。

有机无机复混肥对柑橘产量和品质的影响

采用田间小区试验研究了有机无机复混肥对柑橘产量和品质的影响。结果表明,施有机无机复混肥能增加柑橘产量,改善果实品质,提高经济效益。柑橘产量以施有机无机复混肥处理最高,施有机无机复混肥能增加柑橘果实的Vc含量、可溶性总糖含量、糖酸比和可溶性固形物百分比,降低可滴定酸含量。

无机/有机稀土配合物杂化发光材料研究进展

近年来材料的发展趋势是功能互补,性能优化。稀土配合物发光强度大、单色性好,缺点是光稳定性和热稳定性较差,因此须将其掺入一定基质中,这样所得到的有机 /无机杂化发光材料,兼备了有机、无机材料的优点。根据杂化材料中稀土配合物与基质之间作用力不同,可分为第一类杂化材料 (两相间以弱键如氢键等结合)和第二类杂化材料(两相间以强键如共价键等结合 )。对这两类杂化材料近年来国内外的研究情况作了综合评述,并展望了其发展趋势。

无机-有机高分子复合絮凝剂研究与应用

综述了两大类无机有机高分子复合絮凝剂———无机合成有机高分子复合絮凝剂和无机天然高分子复合絮凝剂的发展及其在废水处理中的应用 ,同时对它们的作用机理进行了概括和归纳 。

菜籽油枯有机无机复混肥对烤烟产质量及养分利用率的影响

探索添加300 g·kg–1和400 g·kg–1菜籽油枯制成的有机无机复混肥(以OR30和OR40表示)对烤烟生长、产质量及养分利用率的影响,为提高云南菜籽油枯资源的利用效率和提升烟叶品质提供科学依据。以烤烟品种K326为材料,采用大田试验,设置10个处理:T1,施化肥,即烟草专用复合肥400 kg·hm^(–2)+过磷酸钙362.5 kg·hm^(–2)+硫酸钾160 kg·hm^(–2)(纯氮60 kg·hm^(–2)),T2,施OR30400 kg·hm^(–2)(等氮);T3,施OR30265 kg·hm^(–2)和硝酸钾150 kg·hm^(–2)(等氮);T4,施OR30225 kg·hm^(–2)和硝酸钾150 kg·hm^(–2)(减氮10%);T5,施OR30440 kg·hm^(–2)(增氮10%);T6,施OR40500 kg·hm^(–2)(等氮);T7,施OR40331.2 kg·hm^(–2)和硝酸钾150 kg·hm^(–2)(等氮);T8,施OR40281.2 kg·hm^(–2)和硝酸钾150 kg·hm^(–2)(减氮10%);T9,施OR40550 kg·hm^(–2)(增氮10%);T10,不施肥。结果表明,与化肥(T1)相比,T2、T3、T5、T7和T9促进烟株生长明显,叶面积和叶面积系数分别显著增加1.74%~4.51%、4.47%~19.11%;T4、T5、T7和T9的根鲜物质量、根干物质量和根体积较T1均显著增加。T2、T4、T5、T7和T9增产率为2.69%~7.46%,T2、T5和T9产值较T1分别显著提高10.99%~13.46%。T2、T4、T7和T9中部烟叶总糖、还原糖、氧化钾和水溶性氯含量升高,总氮、烟碱含量下降,烟叶化学成分更加协调。与T1相比,T2、T4、T5、T7和T9显著提高氮素表观利用率9.31%~25.17%,氮素生理利用率提高7.67%~22.32%;T2、T4和T9磷素表观利用率及生理利用率分别提高19.85%~28.05%和14.71%~21.39%;T2、T4、T5和T9分别增加钾素表观利用率及生理利用率8.55%~17.40%和9.06%~21.98%。综合分析表明,适量的油枯有机无机复混肥(T5和T9)或搭配追施硝酸钾(T4和T7)可促进烟株地上部和根部的生长,促进氮、磷、钾吸收,提高烟叶产质量。

无机/有机复合絮凝剂对印染废水脱色的研究

研究了几种有机、无机絮凝剂和两种无机 /有机复合絮凝剂对活性艳红 K- 2 BP模拟废水以及实际废水的处理效果。结果表明 ,无机 /有机复合絮凝剂对活性染料具有很好的处理效果 ,且节省絮凝剂用量 ,当投加量为 75 0 mg/L时 ,脱色率达 99% ,沉清液基本无色 ,具有脱色率高 ,沉淀污泥少 ,絮凝颗粒大 。

生物有机无机复合肥对土壤微生物活性的影响

进行了化肥、有机肥、生物堆肥、有机无机复合肥和生物有机无机复合肥的田间比较试验。结果表明 :生物有机无机复合肥显著提高土壤微生物活性。与不施肥处理比较 ,土壤细菌增加了 1 6 5 .3 8% ,真菌增加了1 89.4 7% ,放线菌增加了 4 8.72 % ,总量增加了 1 0 4 .0 7% ,其增加量高于其他处理。土壤蔗糖酶、脲酶、磷酸酶活性也都有明显提高 ,促进了土壤有机质的分解转化和速效养分的释放。

蚕沙有机无机复混肥对叶菜类蔬菜产量和品质的影响

利用盆栽试验研究了蚕沙有机无机复混肥对叶菜类蔬菜青菜（品种为矮脚黄青菜）、生菜（品种为香港玻璃生菜）和菠菜（品种为大叶菠菜）产量和品质的影响。结果表明：叶菜类蔬菜施用蚕沙有机无机复混肥比普通无机复混肥增产36．0％～57．6％，比普通有机无机肥增产20．8％～34．3％，叶绿素含量也有类似的提高趋势；与施用普通无机复混肥和普通有机无机肥相比，施用蚕沙有机无机复混肥后上述3种蔬菜的还原糖含量分别增加37．8％～72．3％和11．8％～21．8％，Vc含量分别增加25．6％～74．6％和5．5％～27．5％，硝酸盐含量分别减少23．6％～42．7％和4．0％～6．8％。