Journal of Electroanalytical Chemistry最新文献_第3页

Hollow NiO/NiCo2O4@carbon nanocages as anode materials for high-performance lithium-ion batteries 中空NiO/NiCo2O4@carbon纳米笼作为高性能锂离子电池的负极材料

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-29 DOI: 10.1016/j.jelechem.2025.119515

Fangyuan Zhou , Jingjing Xie , Wei Jiang , Deyang Zhao , Zhiqiang Lv , Yanfeng Meng , Yudong Pan , Yan Zheng , Chuanya Jiang , Zhenglong Yang , Yanbin Xu

{"title":"Hollow NiO/NiCo2O4@carbon nanocages as anode materials for high-performance lithium-ion batteries","authors":"Fangyuan Zhou , Jingjing Xie , Wei Jiang , Deyang Zhao , Zhiqiang Lv , Yanfeng Meng , Yudong Pan , Yan Zheng , Chuanya Jiang , Zhenglong Yang , Yanbin Xu","doi":"10.1016/j.jelechem.2025.119515","DOIUrl":"10.1016/j.jelechem.2025.119515","url":null,"abstract":"<div><div>As a kind of binary metal oxide, NiCo<sub>2</sub>O<sub>4</sub> has been widely studied as anode material for lithium ion batteries (LIBs) owing to its high theoretical capacity and environmental friendliness. However, the large volume changes during cycling and the semiconductive properties make it difficult to meet the commercial demands. In this paper, hollow carbon nanocages (HCNCs) are employed as substrates to prepare NiO/NiCo<sub>2</sub>O<sub>4</sub>@HCNCs composites by solvothermal synthesis. The combination of NiCo<sub>2</sub>O<sub>4</sub> and NiO leads to improved electrochemical performance due to their synergistic effects. The existence of HCNCs overcomes the interfacial instability between NiCo<sub>2</sub>O<sub>4</sub> and NiO, which facilitates the ion/electron transport. Moreover, the hollow structure not only increases the contact area between the material and the electrolyte, providing more active sites for electrochemical reactions, but also alleviates the structural strain caused by Li<sup>+</sup> embedding and de-embedding during cycling. Therefore, NiO/NiCo<sub>2</sub>O<sub>4</sub>@HCNCs composites show improved rate capability and cycling performance. At a current density of 0.2 A g<sup>−1</sup>, the specific capacity reaches 1051.91 mAh g<sup>−1</sup> after 200 cycles, with a remarkable Coulombic efficiency of 99.4 %. Even at a high current density of 5 A g<sup>−1</sup>, the specific capacity still reaches 352.81 mAh g<sup>−1</sup>.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"998 ","pages":"Article 119515"},"PeriodicalIF":4.1,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of graphene quantum dots from diesel fractions and the application in electrochemiluminescence detection of copper ions 柴油馏分制备石墨烯量子点及其在铜离子电化学发光检测中的应用

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-28 DOI: 10.1016/j.jelechem.2025.119513

Yinfeng Wang , Shunshun Bao , Hu Zou , Shaoze Zhi , Zhengchun Yang , Boning Han , Junjun Shi , Jun Liu , Peng Pan , Yangyang Qi , Jie He

{"title":"Synthesis of graphene quantum dots from diesel fractions and the application in electrochemiluminescence detection of copper ions","authors":"Yinfeng Wang , Shunshun Bao , Hu Zou , Shaoze Zhi , Zhengchun Yang , Boning Han , Junjun Shi , Jun Liu , Peng Pan , Yangyang Qi , Jie He","doi":"10.1016/j.jelechem.2025.119513","DOIUrl":"10.1016/j.jelechem.2025.119513","url":null,"abstract":"<div><div>To achieve high value-added utilization of diesel fractions, this study employs chemical vapor deposition (CVD) technology, utilizing industrial waste diesel fractions as a carbon source, to deposit carbon films on nickel substrates. Subsequently, graphene quantum dots (GQDs) are synthesized via electrochemical exfoliation, and their application in copper ion detection is explored. The GQDs prepared through this method exhibit uniform size and excellent fluorescence properties. Additionally, this method combines the advantages of CVD in growing high-quality carbon films with the green and controllable characteristics of electrochemical exfoliation, achieving efficient synthesis with minimal environmental impact. This provides a novel green solution for the high-value utilization of diesel fractions. The obtained GQDs were characterized using ultraviolet-visible spectroscopy (UV–Vis), photoluminescence (PL) spectroscopy, and transmission electron microscopy (TEM), demonstrating excellent optical properties and stable fluorescence response. A paper-based electrochemical luminescence (ECL) sensor using GQDs as the substrate and K₂S₂O₈ as the co-reagent was developed for Cu<sup>2+</sup> detection. The sensor exhibits a detection range of 0.01–1000 μM. Experimental results confirm that the ECL response undergoes significant changes with increasing Cu<sup>2+</sup> concentration, enabling effective detection. This study not only demonstrates an innovative recycling pathway for diesel component waste as a carbon precursor for GQDs but also provides a sensitive and selective ECL sensing platform for copper ion detection and bioanalytical applications.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119513"},"PeriodicalIF":4.1,"publicationDate":"2025-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-photoelectrode synergistic signal amplification-integrated self-powered photoelectrochemical immunosensor for sensitive CA19-9 detection 双光电极协同信号放大集成自供电光电化学免疫传感器灵敏检测CA19-9

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-28 DOI: 10.1016/j.jelechem.2025.119514

Meng-Yuan Zheng , Xiao-Long Fu , Xue-Bo Hu , Bing Wang , Yu-Ling Wang , Pan Wu , Shu-Wei Ren , Jun-Tao Cao , Yan-Ming Liu

{"title":"Dual-photoelectrode synergistic signal amplification-integrated self-powered photoelectrochemical immunosensor for sensitive CA19-9 detection","authors":"Meng-Yuan Zheng , Xiao-Long Fu , Xue-Bo Hu , Bing Wang , Yu-Ling Wang , Pan Wu , Shu-Wei Ren , Jun-Tao Cao , Yan-Ming Liu","doi":"10.1016/j.jelechem.2025.119514","DOIUrl":"10.1016/j.jelechem.2025.119514","url":null,"abstract":"<div><div>Traditional photoanode-based photoelectrochemical (PEC) sensing systems suffer from weak anti-interference ability, while photocathode-based systems always show weak signal response. To resolve this contradiction, a dual-photoelectrode internally driven self-powered PEC sensing system integrating Bi<sub>2</sub>Sn<sub>2</sub>O<sub>7</sub>/Au/Bi<sub>2</sub>S<sub>3</sub> photoanode with Cu<sub>3</sub>SnS<sub>4</sub> photocathode was developed for the accurate and sensitive detection of carbohydrate antigen 19-9 (CA19-9). The Bi<sub>2</sub>Sn<sub>2</sub>O<sub>7</sub>/Au/Bi<sub>2</sub>S<sub>3</sub> ternary heterojunction as photoanode efficiently enhance PEC signal, while Cu<sub>3</sub>SnS<sub>4</sub> photocathode acted as working electrode could well improve the anti-interference of PEC sensing system. Benefit from the dual-photoelectrode synergistic effects, the proposed biosensing platform exhibited a fine performance for CA19-9 detection with a linear range of 0.0001 U mL<sup>−1</sup> to 100 U mL<sup>−1</sup> and a detection limit of 2.87 × 10<sup>−5</sup> U mL<sup>−1</sup> (S/N = 3). The constructed self-powered PEC platform with the merits of high sensitivity, satisfactory stability and selectivity, provides an efficient, facile, and general method for disease-related biomarkers analysis.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119514"},"PeriodicalIF":4.1,"publicationDate":"2025-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Imine compound with extended conjugated structure and multi-active centers as cathode for high performance aqueous zinc-ion batteries 具有扩展共轭结构和多活性中心的亚胺化合物作为高性能水性锌离子电池的阴极

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-27 DOI: 10.1016/j.jelechem.2025.119511

Ting Tang , Yongwen Wang , Xinyu Gao , Keguang Xu , Ruonan Pan , Yanyan Liu , Gang Wang , Tiantian Gu

{"title":"Imine compound with extended conjugated structure and multi-active centers as cathode for high performance aqueous zinc-ion batteries","authors":"Ting Tang , Yongwen Wang , Xinyu Gao , Keguang Xu , Ruonan Pan , Yanyan Liu , Gang Wang , Tiantian Gu","doi":"10.1016/j.jelechem.2025.119511","DOIUrl":"10.1016/j.jelechem.2025.119511","url":null,"abstract":"<div><div>Aqueous zinc ion batteries (AZIBS) are receiving much attentions because of the high capacity and stable safety performance. Organics are considered as one of the potential candidates for cathodes materials in aqueous zinc ion batteries owing to their wide range of sources, designable structures and green safety advantages. However, the existing organic cathodes face problems such as high solubility and low density of active sites in the electrolyte. Increasing multiple active sites of the molecule and expanding the conjugated structure are expected to solve these problems. Based on this, the imine compound 11,11′-dipyrido [3,2-a:2′, 3′- c] phenazine (DBZQ) was synthesized through refluxing using 1,10-o-phenanthrene-5,6-dione (PDO) and 3,3′-diaminobenzidine (3,3-DBZ) as precursors, and the electrochemical performance and zinc storage mechanism of DBZQ were analyzed. The results showed that DBZQ exhibited a first discharge specific capacity is 188.7 mAh g<sup>−1</sup> at 50 mA g<sup>−1</sup>, and after gradual stabilization, it reached a high specific capacity of 125.7 mAh g<sup>−1</sup>. In addition, DBZQ exhibited excellent rate performance (68.1 mAh g<sup>−1</sup> at 5 A g<sup>−1</sup>) and long cycling ability (77.7 % retention under 1 A g<sup>−1</sup> over 2000 cycles). Moreover, DBZQ with multiple active sites demonstrated a capacitive control process during the insertion of Zn<sup>2+</sup>. The electrochemical mechanism of DBZQ is revealed via experimental and theoretical calculations, which is a mixed insertion into the unsaturated C<img>N bond involving zinc ions and hydrogen ions. In response to the disadvantages of conventional batteries, the introduction of organic electrodes materials has brought new opportunities to the battery industry.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119511"},"PeriodicalIF":4.1,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Composites-based electrodes in enzymatic electrochemical glucose biosensors 复合材料电极在酶促电化学葡萄糖生物传感器中的应用

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-27 DOI: 10.1016/j.jelechem.2025.119505

Antanas Zinovicius , Evaldas Balciunas , Juste Rozene , Jurate Jolanta Petroniene , Agne Bogusevice , Kosuke Ino , Laisvidas Striska , Tomas Mockaitis , Inga Morkvenaite

{"title":"Composites-based electrodes in enzymatic electrochemical glucose biosensors","authors":"Antanas Zinovicius , Evaldas Balciunas , Juste Rozene , Jurate Jolanta Petroniene , Agne Bogusevice , Kosuke Ino , Laisvidas Striska , Tomas Mockaitis , Inga Morkvenaite","doi":"10.1016/j.jelechem.2025.119505","DOIUrl":"10.1016/j.jelechem.2025.119505","url":null,"abstract":"<div><div>Glucose imbalance in the human body is associated with multiple metabolic conditions such as hypoglycemia, hyperglycemia, insulin resistance, hyperinsulinemia, and diabetes. This review examines the latest developments in enzymatic glucose biosensors, with a focus on those utilizing nanocomposites and polymers. Conductive polymers, carbon nanostructures, metal nanoparticles, polymers with embedded metal nanoparticles, and polymeric ionic liquid-based structures are the most convenient for the design of electrochemical biosensors. Conductive polymer materials enhance electron transfer, improve biocompatibility, and enable flexible biosensor designs. Carbon nanostructures can be integrated with polymeric materials, improving the charge transfer. Polymer-metal structure-containing electrodes improve glucose sensor performance by enhancing conductivity and stability. Complex composite-based electrodes enable the exploitation of combinations of benefits provided by all previously mentioned materials. Significant progress in sensor performance was achieved by tailoring the composition and structure of these components.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"998 ","pages":"Article 119505"},"PeriodicalIF":4.1,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemical sensor based on Ni-MOF/MWCNTs for the selective detection of drug Ixazomib citrate 基于Ni-MOF/MWCNTs的电化学传感器用于药物柠檬酸伊唑唑米的选择性检测

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-26 DOI: 10.1016/j.jelechem.2025.119510

Mahmoud Roushani, Zahra Mirzaei Karazan, Ammar Khaled Abdel-Wahid

引用次数: 0

Sensitive self-powered ochratoxin A detection by coupling a non-enzymatic DNA walker to a glucose/oxygen biofuel cell 通过耦合非酶DNA助行器到葡萄糖/氧生物燃料电池的灵敏自供电赭曲霉毒素A检测

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-25 DOI: 10.1016/j.jelechem.2025.119509

Ziyan You, Rong Chen, Wenfang Deng, Yueming Tan

{"title":"Sensitive self-powered ochratoxin A detection by coupling a non-enzymatic DNA walker to a glucose/oxygen biofuel cell","authors":"Ziyan You, Rong Chen, Wenfang Deng, Yueming Tan","doi":"10.1016/j.jelechem.2025.119509","DOIUrl":"10.1016/j.jelechem.2025.119509","url":null,"abstract":"<div><div>Addressing the critical need for on-site ochratoxin A (OTA) detection due to its severe health risks, this work pioneers a sensitive self-powered biosensing platform integrating a non-enzymatic DNA walker with a glucose/oxygen biofuel cell. The specific binding of OTA to its aptamer triggers the release of the bipedal DNA walker from the walker-aptamer duplex. Powered by toehold-mediated strand replacement, the released bipedal DNA walker migrates across the two-dimensional DNA track on the anode, inducing the hybridization between a glucose oxidase-labeled single strand DNA probe and the DNA track. Higher OTA concentrations improve enzymatic loading at the bioanode, leading to increased short-circuit current density in the biofuel cell for sensitive self-powered OTA detection. A linear range from 10 fg mL<sup>−1</sup> to 10 ng mL<sup>−1</sup> is obtained for OTA detection, with a detection limit of 3 fg mL<sup>−1</sup>. This study pioneers a non-enzymatic DNA walker-based self-powered sensing strategy and delivers a portable OTA detection device.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119509"},"PeriodicalIF":4.1,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultra-stable MnO2 cathode enabled by Fe doping and carbon nanotubes scaffolding for long-cycling zinc-ion batteries 铁掺杂和碳纳米管支架制备的超稳定二氧化锰阴极用于长循环锌离子电池

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-25 DOI: 10.1016/j.jelechem.2025.119508

Bing Wang , Meng Liu , Wenfeng Li , Xuefei Zhou , Jiawei Bu , Meng Zhang

{"title":"Ultra-stable MnO2 cathode enabled by Fe doping and carbon nanotubes scaffolding for long-cycling zinc-ion batteries","authors":"Bing Wang , Meng Liu , Wenfeng Li , Xuefei Zhou , Jiawei Bu , Meng Zhang","doi":"10.1016/j.jelechem.2025.119508","DOIUrl":"10.1016/j.jelechem.2025.119508","url":null,"abstract":"<div><div>Aqueous zinc-ion batteries face critical challenges with MnO<sub>2</sub> cathodes due to their poor electronic conductivity and structural instability. This work addresses these issues by using Fe<sup>3+</sup> doping and CNTs hybridisation to modify the atomic coordination and interfacial charge transfer synergistically. The incorporated Fe<sup>3+</sup> ions induce lattice strain and redistribute electron density in the MnO<sub>2</sub>, which substantially enhances electron mobility and reduces reaction resistance during Zn<sup>2+</sup> intercalation. Meanwhile, the interwoven CNT network establishes rapid electron transport channels and physically constrains the MnO<sub>2</sub> particles, preventing structural degradation. The optimized Fe-MnO<sub>2</sub>/C composite exhibits a high specific capacity of 340 mA h g<sup>−1</sup> at 0.1 A g<sup>−1</sup>, and demonstrates exceptional rate capability. Notably, it maintains 97.9 mA h g<sup>−1</sup> at 2 A g<sup>−1</sup> over 1000 cycles with 89 % retention, 2.5 times higher than undoped MnO<sub>2</sub>. This dual-modification strategy offers a practical approach for developing high-performance cathodes toward zinc-ion batteries.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119508"},"PeriodicalIF":4.1,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Y3+on microstructure optimization and performance enhancement of ultra-thin electrodeposited copper foil Y3+对超薄电沉积铜箔微观结构优化和性能增强的影响

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-24 DOI: 10.1016/j.jelechem.2025.119487

Xin Zhang, Jiayi Zhang

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Influence of electrochemical parameters for anthracene detection by SWV using MIP glassy carbon electrode 电化学参数对MIP玻碳电极SWV检测蒽的影响

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-09-24 DOI: 10.1016/j.jelechem.2025.119477

Oumayma Lourzhal, Valérie Bertagna, Céline Grillot, Jimmy Nicolle, Christine Vautrin-ul

{"title":"Influence of electrochemical parameters for anthracene detection by SWV using MIP glassy carbon electrode","authors":"Oumayma Lourzhal, Valérie Bertagna, Céline Grillot, Jimmy Nicolle, Christine Vautrin-ul","doi":"10.1016/j.jelechem.2025.119477","DOIUrl":"10.1016/j.jelechem.2025.119477","url":null,"abstract":"<div><div>This paper presents the functionalization of glassy carbon electrode with Molecularly Imprinted Polymer (MIP) nanolayers for the electrochemical analysis of anthracene (ANT), a water micropollutant that lacks a low-cost reliable commercial electrochemical sensor. Building on our previous work, we have optimized the ANT detection method, to significantly enhance its sensitivity [<span><span>1</span></span>]. To minimize environmental impact we carefully selected the development conditions for the MIP-Glassy Carbon Electrode (MIP-GCE). The functionalization was achieved by electropolymerization of pyrrole in the presence or absence of ANT molecules yielding MIP and Non-Imprinted Polymer (NIP) films, respectively. The electrochemical detection was achieved via square wave voltammetry, yielding remarkable performance values for the MIP-GCE sensor. Notably, the Limit of Detection (LOD), was as low as 1 ng.L<sup>−1</sup> (5.61 × 10<sup>−12</sup> M) in natural waters, representing a remarkable thousand-fold improvement compared to our preliminary study.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"997 ","pages":"Article 119477"},"PeriodicalIF":4.1,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0