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  1. Article ; Online: Elaborating the excited-state double proton transfer mechanism and multiple fluorescent characteristics of 3,5-bis(2-hydroxypheny)-1H-1,2,4-triazole.

    Li, Chaozheng / Hu, Bo / Cao, Yonghua / Li, Yongfeng

    Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

    2021  Volume 258, Page(s) 119854

    Abstract: Recently, Krishnamoorthy and coworkers reported a new type of proton transfer, which was labeled as 'proton transfer triggered proton transfer', in 3,5-bis(2-hydroxypheny)-1H-1,2,4-triazole (bis-HPTA). In this work, the excited-state double proton ... ...

    Abstract Recently, Krishnamoorthy and coworkers reported a new type of proton transfer, which was labeled as 'proton transfer triggered proton transfer', in 3,5-bis(2-hydroxypheny)-1H-1,2,4-triazole (bis-HPTA). In this work, the excited-state double proton transfer (ESDPT) mechanism and multiple fluorescent characteristics of bis-HPTA were investigated. Upon photo-excitation, the intramolecular hydrogen bonding strength changed and the electron density of bis-HPTA redistributed. These changes will affect the proton transfer process. In S
    Language English
    Publishing date 2021-04-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 210413-1
    ISSN 1873-3557 ; 0370-8322 ; 0584-8539 ; 1386-1425
    ISSN (online) 1873-3557
    ISSN 0370-8322 ; 0584-8539 ; 1386-1425
    DOI 10.1016/j.saa.2021.119854
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Precise determination of major and trace elements in micrometer-scale ilmenite lamellae in titanomagnetite using LA-ICP-MS technique: application of regression analysis to time-resolved signals.

    Liu, Si-Qi / Jiang, Shao-Yong / Chen, Wei / Wang, Christina Yan / Su, Hui-Min / Cao, Yonghua / Zhang, Hao-Xiang / Li, Wen-Tian

    RSC advances

    2023  Volume 13, Issue 19, Page(s) 13303–13313

    Abstract: Laser ablation ICP-MS (LA-ICP-MS) is a powerful microbeam technique capable of rapid and precise determination for a large spectrum of trace elements at ppm or sub-ppm levels. Micrometer-scale minerals and inclusions are very common in geological ... ...

    Abstract Laser ablation ICP-MS (LA-ICP-MS) is a powerful microbeam technique capable of rapid and precise determination for a large spectrum of trace elements at ppm or sub-ppm levels. Micrometer-scale minerals and inclusions are very common in geological materials, for which direct measurement is restricted by the spot size using LA-ICP-MS (generally 20-50 μm). In this study, ilmenite lamellae intergrown with magnetite were selected as an example to describe a practical algorithm that applies regression analysis to extract the chemical compositions of binary phases from mixed LA-ICP-MS signals. The method accuracy is confirmed by the agreement between the regressed value for various trace elements in ilmenite exsolutions and their reference values (direct analyses using EPMA and LA-ICP-MS). Results were obtained for most detectable components (Mg, Mn, V, Nb, Ta, Sc, Zr, Hf, Sn,
    Language English
    Publishing date 2023-05-02
    Publishing country England
    Document type Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d3ra02472e
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Photo-Driven Aerobic Methane Nitration.

    He, Xuefeng / Zhang, Lina / Chen, Jiawei / Liu, Huichong / Su, Yuming / Li, Han / Cao, Yonghua / Dral, Pavlo O / Wang, Cheng

    Inorganic chemistry

    2023  Volume 62, Issue 26, Page(s) 10343–10350

    Abstract: Conversion of methane to liquid oxygenates is challenging but of great value. Here, we report the oxidation of methane ( ... ...

    Abstract Conversion of methane to liquid oxygenates is challenging but of great value. Here, we report the oxidation of methane (CH
    Language English
    Publishing date 2023-06-21
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.3c01210
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Neighboring Zn–Zr Sites in a Metal–Organic Framework for CO₂ Hydrogenation

    Zhang, Jingzheng / An, Bing / Li, Zhe / Cao, Yonghua / Dai, Yiheng / Wang, Wangyang / Zeng, Lingzhen / Lin, Wenbin / Wang, Cheng

    Journal of the American Chemical Society. 2021 June 07, v. 143, no. 23

    2021  

    Abstract: ZrZnOₓ is active in catalyzing carbon dioxide (CO₂) hydrogenation to methanol (MeOH) via a synergy between ZnOₓ and ZrOₓ. Here we report the construction of Zn²⁺–O–Zr⁴⁺ sites in a metal–organic framework (MOF) to reveal insights into the structural ... ...

    Abstract ZrZnOₓ is active in catalyzing carbon dioxide (CO₂) hydrogenation to methanol (MeOH) via a synergy between ZnOₓ and ZrOₓ. Here we report the construction of Zn²⁺–O–Zr⁴⁺ sites in a metal–organic framework (MOF) to reveal insights into the structural requirement for MeOH production. The Zn²⁺–O–Zr⁴⁺ sites are obtained by postsynthetic treatment of Zr₆(μ₃-O)₄(μ₃-OH)₄ nodes of MOF-808 by ZnEt₂ and a mild thermal treatment to remove capping ligands and afford exposed metal sites for catalysis. The resultant MOF-808-Zn catalyst exhibits >99% MeOH selectivity in CO₂ hydrogenation at 250 °C and a high space-time yield of up to 190.7 mgMₑOH gZₙ–¹ h–¹. The catalytic activity is stable for at least 100 h. X-ray absorption spectroscopy (XAS) analyses indicate the presence of Zn²⁺–O–Zr⁴⁺ centers instead of ZnₘOₙ clusters. Temperature-programmed desorption (TPD) of hydrogen and H/D exchange tests show the activation of H₂ by Zn²⁺ centers. Open Zr⁴⁺ sites are also critical, as Zn²⁺ centers supported on Zr-based nodes of other MOFs without open Zr⁴⁺ sites fail to produce MeOH. TPD of CO₂ reveals the importance of bicarbonate decomposition under reaction conditions in generating open Zr⁴⁺ sites for CO₂ activation. The well-defined local structures of metal-oxo nodes in MOFs provide a unique opportunity to elucidate structural details of bifunctional catalytic centers.
    Keywords X-ray absorption spectroscopy ; bicarbonates ; carbon dioxide ; catalysts ; catalytic activity ; coordination polymers ; desorption ; heat treatment ; hydrogen ; hydrogenation ; ligands ; methanol ; space and time
    Language English
    Dates of publication 2021-0607
    Size p. 8829-8837.
    Publishing place American Chemical Society
    Document type Article
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.1c03283
    Database NAL-Catalogue (AGRICOLA)

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  5. Article: Iron Isotope Systematics of the Panzhihua Mafic Layered Intrusion Associated With Giant Fe‐Ti Oxide Deposit in the Emeishan Large Igneous Province, SW China

    Cao, Yonghua / Wang, Christina Yan / Huang, Fang / Zhang, Zhaofeng

    Journal of geophysical research. 2019 Jan., v. 124, no. 1

    2019  

    Abstract: In order to investigate how Fe was enriched from parental high‐Ti basaltic magma to form the stratigraphically thick Fe‐Ti oxide ore at the bottom layers, we present a systematic study for Fe isotopic compositions of whole rocks and mineral separates ( ... ...

    Abstract In order to investigate how Fe was enriched from parental high‐Ti basaltic magma to form the stratigraphically thick Fe‐Ti oxide ore at the bottom layers, we present a systematic study for Fe isotopic compositions of whole rocks and mineral separates (clinopyroxene, magnetite, and ilmenite) throughout the Panzhihua intrusion. Whole rock δ⁵⁶Fe ranges from 0 ± 0.02‰ to 0.15 ± 0.04‰, consistent with the range of clinopyroxene (0.01 ± 0.02‰ to 0.16 ± 0.05‰). On the contrary, magnetite (Mt) separates have δ⁵⁶Fe ranging from 0.17 ± 0.05‰ to 0.62 ± 0.02‰, showing a strikingly complementary trend with coexisting ilmenite (Ilm) separates (−0.52 ± 0.03‰ to −0.09 ± 0.02‰) along the profile. The calculated bulk δ⁵⁶Fe of Fe‐Ti oxides (Mt + Ilm), however, has a small range from 0.01‰ to 0.16‰, identical to those for clinopyroxene separates and whole rocks. The uniform δ⁵⁶Fe of clinopyroxene may have resulted from the small Fe isotope fractionation between clinopyroxene and parental magma in early‐stage magma differentiation before substantial crystallization of Fe‐Ti oxides. The complementary trends of δ⁵⁶Fe for Mt and Ilm along the profile and the uniform bulk δ⁵⁶Fe of Fe‐Ti oxides are better interpreted as in situ crystallization of Fe‐Ti oxides from the interstitial liquid. Our Fe isotopic data and petrographic observations indicate that the thick Fe‐Ti oxide ore layers in the lower zone of the Panzhihua intrusion may be attributed to in situ crystallization of Mt and Ilm from the interstitial, immiscible Fe‐rich melt in the lower part of the magma chamber.
    Keywords crystallization ; geophysics ; isotope fractionation ; isotopes ; liquids ; magnetite ; research ; China
    Language English
    Dates of publication 2019-01
    Size p. 358-375.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ISSN 2169-9313
    DOI 10.1029/2018JB016466
    Database NAL-Catalogue (AGRICOLA)

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  6. Article ; Online: Neighboring Zn-Zr Sites in a Metal-Organic Framework for CO

    Zhang, Jingzheng / An, Bing / Li, Zhe / Cao, Yonghua / Dai, Yiheng / Wang, Wangyang / Zeng, Lingzhen / Lin, Wenbin / Wang, Cheng

    Journal of the American Chemical Society

    2021  Volume 143, Issue 23, Page(s) 8829–8837

    Abstract: ... ...

    Abstract ZrZnO
    Language English
    Publishing date 2021-06-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.1c03283
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Interface Engineering of Graphene/CH3NH3PbI3 Heterostructure for Novel p–i–n Structural Perovskites Solar Cells

    Cao, Yong-Hua / Hong-Jian Feng / Jin-Tao Bai / Ming-Zi Wang / Su-Huai Wei / Zun-Yi Deng

    Journal of physical chemistry. 2018 July 10, v. 122, no. 30

    2018  

    Abstract: Functionalized graphene is widely used in various functional devices. Here, we introduce a simple plane capacity model and the density functional theory to investigate the origin of charge transfer in the graphene/CH3NH3PbI3 interface, where graphene can ...

    Abstract Functionalized graphene is widely used in various functional devices. Here, we introduce a simple plane capacity model and the density functional theory to investigate the origin of charge transfer in the graphene/CH3NH3PbI3 interface, where graphene can be p-type or n-type doped by combining with different exposed surfaces of CH3NH3PbI3. Our calculations indicate that at the equilibrium distance, the work function of isolated graphene layer should be corrected by adding a value for assessing the charge transfer. After integrating the perovskite film with the functionalized graphene layer, we obtain a van der Waals heterostructure solar cell with a p–i–n configuration, which introduces a built-in electrical field to facilitate the separation and transport of the photogenerated carriers. The new p–i–n junction highlights the interface effect on graphene in solar cell, which offers an avenue to design new photovoltaic devices with high performance.
    Keywords density functional theory ; electric field ; graphene ; models ; physical chemistry ; solar cells ; van der Waals forces
    Language English
    Dates of publication 2018-0710
    Size p. 17228-17237.
    Publishing place American Chemical Society
    Document type Article
    ISSN 1932-7455
    DOI 10.1021/acs.jpcc.8b04042
    Database NAL-Catalogue (AGRICOLA)

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  8. Article: A New Class of Bifunctional Perovskites BaMX4 (M = Co, Ni, Fe, Mn; X = F, Cl, Br, I): An n-Type Semiconductor with Combined Multiferroic and Photovoltaic Properties

    He, Jiawei / Cao, Yong-Hua / Chen, Zi-Xuan / Feng, Hong-Jian / Liang, Xiao-Wen / Qian, Chong-Xin / Zeng, Xiao Cheng / Zhang, Qiang

    Journal of physical chemistry. 2019 May 22, v. 123, no. 23

    2019  

    Abstract: We design a new class of bifunctional materials, namely, BaMX4 (M = Co, Ni, Fe, Mn; X = F, Cl, Br, I), with corner-shared octahedral layered perovskite structures. Our joint experimental and theoretical study demonstrates that BaCoF4, a prototype in this ...

    Abstract We design a new class of bifunctional materials, namely, BaMX4 (M = Co, Ni, Fe, Mn; X = F, Cl, Br, I), with corner-shared octahedral layered perovskite structures. Our joint experimental and theoretical study demonstrates that BaCoF4, a prototype in this new class, possesses a unique combination of multiferroic and photovoltaic properties. Moreover, BaCoF4 exhibits both an antiferromagnetic spin structure and ferroelectric polarization along the (001) direction. These combined electronic and optical features render BaCoF4 a promising bifunctional material for application in spintronic or photovoltaic devices. Density functional theory calculations suggest that the dominant point defects in BaCoF4 are mostly shallow-level donor defects, leading to fascinating n-type self-doping. As such, a BaCoF4 layer may be exploited for electron transport and light absorption altogether, which may enhance the photovoltaic performance in solar cells. To confirm this predicted feature, we incorporate BaCoF4 as an electron transport layer and fabricated a BaCoF4/Cs0.05MA0.14FA0.81PbI2.55Br0.45-based solar cell device. Notably, the solar cell devices yield the champion power conversion efficiency of ca. 13.14%. We also investigate photovoltaic properties of other analogous materials and find that BaNiBr4 and BaMnCl4 also possess both multiferroic and photovoltaic bifunctionalities. Hence, this new class of BaMX4 offers diverse and tunable capability for various applications.
    Keywords bromides ; chlorides ; cobalt ; density functional theory ; electron transfer ; ferrimagnetic materials ; fluorides ; iodides ; iron ; manganese ; nickel ; prototypes ; semiconductors ; solar cells
    Language English
    Dates of publication 2019-0522
    Size p. 14303-14311.
    Publishing place American Chemical Society
    Document type Article
    ISSN 1932-7455
    DOI 10.1021/acs.jpcc.9b04502
    Database NAL-Catalogue (AGRICOLA)

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  9. Article: [Preliminary clinical study on planned staging surgical operation for treatment of huge carotid tumor].

    Cao, Yong-hua / Fan, Meng-yun / Zhang, Qing

    Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery

    2012  Volume 47, Issue 11, Page(s) 952

    MeSH term(s) Adult ; Aneurysm/surgery ; Carotid Artery, Common/surgery ; Carotid Artery, Internal ; Humans ; Male ; Vascular Surgical Procedures
    Language Chinese
    Publishing date 2012-11
    Publishing country China
    Document type Case Reports ; Journal Article
    ZDB-ID 2195655-8
    ISSN 1673-0860
    ISSN 1673-0860
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Disagreement and factors between symptom on self-report and clinician rating of major depressive disorder: A report of a national survey in China.

    Lyu, Dongbin / Wu, Zhiguo / Wang, Yun / Huang, Qinte / Wu, Zhenling / Cao, Tongdan / Zhao, Jie / Cao, Yonghua / Hu, Yingyan / Chen, Jun / Wang, Yong / Su, Yousong / Zhang, Chen / Peng, Daihui / Li, Zezhi / Cao, Lan / Hong, Wu / Fang, Yiru

    Journal of affective disorders

    2019  Volume 253, Page(s) 141–146

    Abstract: Background: Measurement-based care (MBC) is a popular strategy of clinical management for patients with major depressive disorder (MDD). The consistency of self-report and clinical measurements is of importance, but whether individual symptom severity ... ...

    Abstract Background: Measurement-based care (MBC) is a popular strategy of clinical management for patients with major depressive disorder (MDD). The consistency of self-report and clinical measurements is of importance, but whether individual symptom severity is in agreement for both self-report and clinician rating in MDD has not been comprehensively tested. This study aimed to test whether individual symptom severity of MDD was in agreement between self-report and clinician rating, and to explore factors affecting the agreement.
    Methods: In the National Survey on Symptomatology of Depression (NSSD) of China, 3275 patients with a major depressive episode were evaluated by both self-report and a clinician-rated version of 62 questions.
    Results: On average, 59% of all patients reached absolute agreement with their research clinicians. Among all questions, 73% returned with moderate positive strength of correlation, followed by 27% with low positive correlation. In 77% of the total questions, there was a tendency to rate higher in the self-report version compared with the clinician-rated version. After classifying the symptoms by six major domains, it was found that patients and clinicians showed more consistent answers in history and somatic questions (81% and 65% reached agreement), and that there were more differences in mood, energy, and anxiety questions (up to 56% in full agreement). "Outpatient", "high financial status", "poor working condition", and "high education level" were found to be significant positive predictors for patients rating higher than clinicians or patients and clinicians reaching agreement as opposed to clinicians rating higher than patients.
    Limitations: The cross-sectional nature of our study undermines the interpretation of the results across the MDD treatment course.
    Conclusions: It is sufficient to use the self-report version of a questionnaire to screen, monitor, and detect remission for MDD symptoms. Complete assessment of depression severity should take both clinician-rated scales and self-reported measures into consideration. Factors other than source of admission, financial status, working condition, and education level should be further investigated for the discrepancy between self-report and clinician rating.
    MeSH term(s) Adult ; Affect ; China ; Cross-Sectional Studies ; Depressive Disorder, Major/diagnosis ; Diagnostic Self Evaluation ; Female ; Humans ; Male ; Middle Aged ; Outpatients/psychology ; Psychiatric Status Rating Scales/statistics & numerical data ; Reproducibility of Results ; Self Report/statistics & numerical data ; Symptom Assessment/methods ; Symptom Assessment/statistics & numerical data
    Language English
    Publishing date 2019-04-19
    Publishing country Netherlands
    Document type Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 135449-8
    ISSN 1573-2517 ; 0165-0327
    ISSN (online) 1573-2517
    ISSN 0165-0327
    DOI 10.1016/j.jad.2019.04.073
    Database MEDical Literature Analysis and Retrieval System OnLINE

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