Journal of Industrial and Engineering Chemistry最新文献_第10页

Environmentally friendly electroactive poly(vinyl chloride) gel-based focus-tunable microlens 环保电活性聚氯乙烯凝胶型可调焦微透镜

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2024-11-20 DOI: 10.1016/j.jiec.2024.11.028

Jae Uk Yoon , Seung-Ju Oh , Jin Woo Bae

引用次数: 0

Tailoring polymer electrolytes with PVA for improved performance in electrical double layer capacitors 用PVA裁剪聚合物电解质，以改善电双层电容器的性能

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2024-11-19 DOI: 10.1016/j.jiec.2024.11.035

M.H. Hamsan , Peshawa O. Hama , Shujahadeen B. Aziz , Jihad M. Hadi , Mohammed B. Ahmed , Ranjdar M. Abdullah , Niyaz M. Sadiq , Mohd F. Z. Kadir

{"title":"Tailoring polymer electrolytes with PVA for improved performance in electrical double layer capacitors","authors":"M.H. Hamsan , Peshawa O. Hama , Shujahadeen B. Aziz , Jihad M. Hadi , Mohammed B. Ahmed , Ranjdar M. Abdullah , Niyaz M. Sadiq , Mohd F. Z. Kadir","doi":"10.1016/j.jiec.2024.11.035","DOIUrl":"10.1016/j.jiec.2024.11.035","url":null,"abstract":"<div><div>In this work, solid polymer electrolytes (SPEs) were synthesized through solution casting, employing polyvinyl alcohol (PVA) as polymer hosts and sodium thiocyanate (NaSCN) for ion transport. Glycerol was incorporated to enhance ionic conduction. The conducted FTIR results establish that glycerol can dissociate more salts. The band associated with SCN anion decreased in intensity and broadened. The ionic conductivity was determined through electrochemical impedance spectroscopy (EIS). The value of <em>ε’</em> is about twice that of ε’’ value, which is the subject of enormous scientific debate. The AC conductivity spectrum reveals dissimilar regions endorsed to the contributions of electrode polarization and DC conductivity. The ion fraction and its contributions were determined using transference number measurement (TNM), with ion contributions reaching 0.93. The electrolyte exhibited electrochemical stability up to 2.67 V. Charge transfer via Faradaic processes was not observed at the electrode–electrolyte interface, as indicated by CV measurements. The triangular shape of the galvanostatic charge–discharge (GCD) diagram supports capacitive behavior rather than redox reactions, with a specific capacitance of 40F/g. The regular power and energy densities of the electric double-layer capacitors (EDLCs) were estimated as 1255.2 W/kg and 5.5 Wh/kg, respectively, over 1,500 cycles.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"146 ","pages":"Pages 506-521"},"PeriodicalIF":5.9,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Dual-mode fluorescent probe for rapid lead detection in water and gasoline based on a perylene/β-cyclodextrin hybrid sensor 基于苝/β-环糊精混合传感器的双模荧光探针用于水和汽油中铅的快速检测

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2024-11-19 DOI: 10.1016/j.jiec.2024.11.036

Fatemeh Mohammadzadeh , Marzieh Golshan , Vahid Haddadi-Asl , Mehdi Salami-Kalajahi

{"title":"Dual-mode fluorescent probe for rapid lead detection in water and gasoline based on a perylene/β-cyclodextrin hybrid sensor","authors":"Fatemeh Mohammadzadeh , Marzieh Golshan , Vahid Haddadi-Asl , Mehdi Salami-Kalajahi","doi":"10.1016/j.jiec.2024.11.036","DOIUrl":"10.1016/j.jiec.2024.11.036","url":null,"abstract":"<div><div>Lead is a toxic heavy metal utilized in various industrial applications, presenting considerable environmental and health hazards. Thus, its rapid detection is necessary in various industrial applications to prevent its toxic effecs. This study introduces a novel fluorescent probe utilizing perylene-3,4,9,10-tetracarboxylic diimide (PTCDI) modified with β-cyclodextrin (B_CD) to lead ion detection and mitigate the inherent hydrophobicity of PTCDI. B_CD is initially modified with aldehyde groups (B_CDA) and subsequently linked to PTCDI through the Schiff-base reaction to produce the final PI_CDA probe. The synthesis of PI_CDA is confirmed through Fourier-transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopies. Field emission scanning electron microscopy (FE-SEM) demonstrates distinct self-assembly structures, transitioning from clumped aggregates in B_CD to elongated cylindrical morphologies in PI_CDA, thereby underscoring the influence of chemical modification on nanostructure formation. The probe demonstrates enhanced fluorescence emission through the photoinduced electron transfer (PET) mechanism, facilitating the selective detection of lead ions while avoiding interference from other metal cations. The detection limit of this sensor for lead ions is determined 1.6 μM, with a maximum detection range of 55 μM. Furthermore, PI_CDA exhibits effective lead detection in gasoline, addressing a notable environmental issue.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"146 ","pages":"Pages 522-533"},"PeriodicalIF":5.9,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel fluorescent probe with a large Stokes shift targeting lysosomes and lipid droplets and its application to cellular imaging 一种针对溶酶体和脂滴具有大斯托克斯位移的新型荧光探针及其在细胞成像中的应用

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2024-11-19 DOI: 10.1016/j.jiec.2024.10.065

Lin Wang , Cong-Cong Li , Jia-xin Cao , Jian-Yong Wang

引用次数: 0

Effect of addition of NWCNTs on the performance of carbon black generated using liquid-phase plasma for energy storage in supercapacitors 添加 NWCNT 对利用液相等离子体生成的用于超级电容器储能的炭黑性能的影响

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2024-11-19 DOI: 10.1016/j.jiec.2024.11.037

Jin-Soo Jeong , Kay-Hyeok An , Gyeong-Geun Lee , Jun-Young Noh , Sang-Chul Jung

{"title":"Effect of addition of NWCNTs on the performance of carbon black generated using liquid-phase plasma for energy storage in supercapacitors","authors":"Jin-Soo Jeong , Kay-Hyeok An , Gyeong-Geun Lee , Jun-Young Noh , Sang-Chul Jung","doi":"10.1016/j.jiec.2024.11.037","DOIUrl":"10.1016/j.jiec.2024.11.037","url":null,"abstract":"<div><div>Hydrogen gas was produced using a novel liquid phase plasma (LPP) process that is differentiated from the existing hydrogen production methods, and the liquid phase plasma carbon black (LPPCB) produced at the same time was mixed with carbon nanotubes (CNT) and applied as a conductive material for an Electric double-layer capacitor (EDLC). The initial charge speed of the conductive material mixed with MWCNT and LPPCB in a ratio of 3:2 was confirmed to be much faster than those of samples with other mixing ratios, and the CV area was also the largest. As the content of multi-walled carbon nanotubes (MWCNT) in the EDLC electrode increased, the electrical conductivity increased, but it was predicted that the electrical conductivity would decrease if the content of MWCNT increased excessively due to poor physical dispersion. In addition, the resistance of the electrode could be lowered when LPPCB and MWCNT existed at the same time. The added value of LPPCB produced with hydrogen by the LPP method was confirmed, and its performance as a conductive material for EDLC was confirmed to improve when MWCNT was added.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"146 ","pages":"Pages 534-541"},"PeriodicalIF":5.9,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrocatalytic CO2 reduction over Ag/CuSn Electrodes: Modulation of C1, C2, and C3+ products Ag/CuSn电极上的电催化CO2还原：C1， C2和C3+产物的调制

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2024-11-17 DOI: 10.1016/j.jiec.2024.11.032

Yunji Gwon, Seon Young Hwang, Sooyeon Bae, Gaeun Yun, So Young Kim, Choong Kyun Rhee, Youngku Sohn

{"title":"Electrocatalytic CO2 reduction over Ag/CuSn Electrodes: Modulation of C1, C2, and C3+ products","authors":"Yunji Gwon, Seon Young Hwang, Sooyeon Bae, Gaeun Yun, So Young Kim, Choong Kyun Rhee, Youngku Sohn","doi":"10.1016/j.jiec.2024.11.032","DOIUrl":"10.1016/j.jiec.2024.11.032","url":null,"abstract":"<div><div>Combining different metals has proven to be an effective methodology for fabricating electrodes that can manipulate reduction products in electrochemical (EC) CO<sub>2</sub> reduction. In this study, CuSn and EC treated CuSn were surface-modified with Ag via sputter deposition. EC CO<sub>2</sub> reduction was performed at various applied potentials in KHCO<sub>3</sub>, K<sub>2</sub>CO<sub>3</sub>, and KOH electrolytes. The effects of cations and anions were tested to examine the variation in reduction products. The major reduction products were H<sub>2</sub> and C<sub>1</sub> compounds (CO, CH<sub>4</sub>, formate), as well as C<sub>2</sub> compounds (C<sub>2</sub>H<sub>4</sub>, ethanol, and acetate). Minor products included C<sub>1</sub> compounds (methanol), C<sub>2</sub> compounds (acetaldehyde and glycolaldehyde), and C<sub>3+</sub> compounds (propanol and isopropanol), along with C<sub>2</sub>H<sub>6</sub> and C<sub>3+</sub> hydrocarbon products. The variation of C<sub>2+</sub> hydrocarbons was explained by Fischer-Tropsch (F-T) chemistry. The oxidation states of Cu and Sn, as well as the Cu/Sn ratios, were examined before and after EC CO<sub>2</sub> reduction using depth-profiled X-ray photoelectron spectroscopy. The experimental factors—catalyst composition, applied potential, and electrolyte composition—interacted to create a complex reaction environment. This combined approach provides valuable insights into identifying optimal conditions for achieving desired product selectivity.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"146 ","pages":"Pages 468-483"},"PeriodicalIF":5.9,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cerium doped ZnO nanostructured photocatalyst for the degradation of multiple dyes 铈掺杂ZnO纳米结构光催化剂降解多种染料

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2024-11-17 DOI: 10.1016/j.jiec.2024.11.025

Surya Mary A , Rachel Reena Philip , Shinoj V. K , Uday P. Deshpande , V. Andrew Bunnell , Nathaniel M. Jobson

{"title":"Cerium doped ZnO nanostructured photocatalyst for the degradation of multiple dyes","authors":"Surya Mary A , Rachel Reena Philip , Shinoj V. K , Uday P. Deshpande , V. Andrew Bunnell , Nathaniel M. Jobson","doi":"10.1016/j.jiec.2024.11.025","DOIUrl":"10.1016/j.jiec.2024.11.025","url":null,"abstract":"<div><div>The development of cost-effective water-treatment methods to remove toxic industrial contaminants is of burgeoning demand today. This paper discusses the superior performance of Ce doped ZnO for the photocatalytic degradation of toxic cationic and anionic dyes. The excellent degradation ability of this easily manoeuvrable solid photocatalyst developed by the facile and low-cost electrochemical method, for the simultaneous removal of multiple dyes, avoiding the need for any post treatments is successfully demonstrated with the synthetic dyes methylene blue, methyl orange, congo red and their mixture. The pH dependence of the photocatalytic efficiency is correlated with its zeta potential. The improved photocatalytic efficiency is attributed to the Ce<sup>4+</sup>↔Ce<sup>3+</sup> redox couple acting as trap centers enhancing the production of superoxide radicals and the reduction of carrier recombination. The scavenger and cyclic stability tests confirm respectively the dominant role of superoxide radicals in photocatalysis and the reusability of the photocatalyst. The photocatalyst is characterized in detail by X-ray diffraction, X-ray photoelectron spectroscopy, field emission scanning electron microscopy, Rutherford backscattering, high-resolution transmission electron microscopy, selected area electron diffraction, surface charge analysis and diffuse reflectance spectroscopy. The study highlights the prospect of Ce doped ZnO nanostructured film as a high-performing photocatalyst for water treatment.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"146 ","pages":"Pages 405-420"},"PeriodicalIF":5.9,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and Comprehensive Characterization of PVA/Chitosan/Cu Nanowires Wound Dressing Hydrogel for Effective In Vitro Wound Healing 聚乙烯醇/壳聚糖/铜纳米线体外创面敷料水凝胶的合成及综合表征

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2024-11-17 DOI: 10.1016/j.jiec.2024.11.029

Mojtaba Jallab , Mina Ghaheri , Bita Javan , Vahid Erfani-Moghadam , Mehdi Ghaffari , Alireza Goudarzi

{"title":"Synthesis and Comprehensive Characterization of PVA/Chitosan/Cu Nanowires Wound Dressing Hydrogel for Effective In Vitro Wound Healing","authors":"Mojtaba Jallab , Mina Ghaheri , Bita Javan , Vahid Erfani-Moghadam , Mehdi Ghaffari , Alireza Goudarzi","doi":"10.1016/j.jiec.2024.11.029","DOIUrl":"10.1016/j.jiec.2024.11.029","url":null,"abstract":"<div><div>This work features the synthesis of a wound dressing hydrogel, with the facile synthesis of the non-oxide copper nanowires (aspect ratio: 5000, length > 100 μm), and the synthesis of Polyvinyl Alcohol (PVA)/Chitosan matrix, crosslinked by TEOS, with enhanced flexibility by addition of Glycerol. The synthesized wound dressing showed high mechanical performance under the influence of nanowires, exhibiting 58.76 MPa tensile strength and 124.78 % elongation, also affecting the swelling behavior reaching 290 % swelling capacity. Biodegradation showed high structural stability and consistent biodegradation, losing only 9.6–21.5 % for nanocomposites in 7 days and 21–27.6 % after 14 days. Biological assessment by MTT assay showed 95–103 % cell viability on the human dermal fibroblasts (HDF) cells. The assessment on the MCF-7 cancer cells was also carried out where 90 % survival showed slight anticancer activity from the nanocomposites. Wound healing scratch assay showed high cell migration, wound closure, and wound healing in 72 h on HDF cells, while inhibiting the growth of MCF-7 cancer cells. Furthermore, the antibacterial activity was measured using a 96-well microdilution test exhibiting good antibacterial activity ranging around 50–97 % against both gram-positive (<em>S. aureus</em>) and gram-negative (<em>E. coli</em>) bacteria, suggesting that the designed nanocomposite hydrogel wound dressing has great potential for wound healing and treatment.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"146 ","pages":"Pages 441-455"},"PeriodicalIF":5.9,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of soil property–dependent interactions of surfactant and diesel in a soil–water system 土壤-水系统中表面活性剂与柴油相互作用的评价

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2024-11-17 DOI: 10.1016/j.jiec.2024.11.033

Ju-Hyeok Kwon , Ramesh Kumar , Yong-Tae Ahn , Geon-Soo Ha , Moonis Ali Khan , Min Jang , Jung Rae Kim , Sang-Eun Oh , Byong-Hun Jeon

{"title":"Evaluation of soil property–dependent interactions of surfactant and diesel in a soil–water system","authors":"Ju-Hyeok Kwon , Ramesh Kumar , Yong-Tae Ahn , Geon-Soo Ha , Moonis Ali Khan , Min Jang , Jung Rae Kim , Sang-Eun Oh , Byong-Hun Jeon","doi":"10.1016/j.jiec.2024.11.033","DOIUrl":"10.1016/j.jiec.2024.11.033","url":null,"abstract":"<div><div>Experimental studies were conducted to remove hydrophobic organic compounds (HOCs) from diesel fuel-contaminated soil. Interactions between non-ionic surfactants and diesel fuel were investigated to understand the partitioning effect in heterogeneous soil–water-surfactant systems. The effective critical micellar concentration (CMC<sub>eff</sub>) was identified from surfactant adsorption, which led to the maximum partitioning of HOCs in the system. This partitioning was attributed to the surfactant (i) lowering the interfacial tension between HOC and soil, (ii) solubilizing HOCs, and (iii) mobilizing HOCs from a solid phase to a pseudo-aqueous phase. The strong adsorption capacity of clay in the soil led to an increase of CMC<sub>eff</sub> from 20 to 2,500 mg/L of Tween 80. The data for surfactant adsorption and desorption on the soil followed Freundlich’s isotherm and showed irreversible adsorption for surfactant, especially in the presence of clay. The diesel migration from soils to the aqueous phase of surfactant was observed beyond its derived CMC value. The maximum removal efficiency of HOCs could be reached at CMC<sub>eff</sub> of surfactant due to the higher solubility and competitive adsorption in the presence of clay. Understanding of the soil-surfactant-diesel behavior helped in the effective field implementation of surfactant-enhanced soil flushing for the remediation of oil-contaminated soil.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"146 ","pages":"Pages 484-493"},"PeriodicalIF":5.9,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research and progress in catalyst modification for ZSM-5 zeolite catalyzed ethanol-to hydrocarbon reaction ZSM-5沸石催化乙醇制烃反应催化剂改性研究进展

IF 5.9 3区工程技术

Journal of Industrial and Engineering Chemistry Pub Date : 2024-11-17 DOI: 10.1016/j.jiec.2024.11.031

Yiyang Lin , Haitao Yin , Shuang Chen , Jiaqi Wang , Wen Li , Yining Gao , Mingyuan Sheng , Nanzhe Jiang

{"title":"Research and progress in catalyst modification for ZSM-5 zeolite catalyzed ethanol-to hydrocarbon reaction","authors":"Yiyang Lin , Haitao Yin , Shuang Chen , Jiaqi Wang , Wen Li , Yining Gao , Mingyuan Sheng , Nanzhe Jiang","doi":"10.1016/j.jiec.2024.11.031","DOIUrl":"10.1016/j.jiec.2024.11.031","url":null,"abstract":"<div><div>Ethanol-to-hydrocarbons (ETH) conversion represents a pivotal reaction in non-homogeneous catalysis, offering a sustainable solution for the production of significant platform chemicals, including olefins, gasoline, and aromatics. However, it is imperative to continue enhancing the catalytic efficiency and extending the operational longevity of the catalysts. This review presents a comprehensive overview of the latest research developments in the field of catalytic conversion of ethanol to hydrocarbons. It emphasizes the pivotal role of zeolite catalysts in the conversion of ethanol to hydrocarbons and offers insights into the recent scientific discoveries pertaining to the reaction mechanism of ETH conversion. In addition, we investigate the catalyst optimization and design, with the objective of enhancing the selectivity of the target product and prolonging the catalyst life. This topic has not been fully addressed in recent reviews. The aim of this review is to offer theoretical insights into the ETH reaction mechanism and to guide the development of more efficient ETH catalysts.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"146 ","pages":"Pages 87-108"},"PeriodicalIF":5.9,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0