Journal of Electroanalytical Chemistry最新文献

{"title":"Investigating proton exchange membrane electrolyzer performance under variable renewable power: Insights into voltage and stack efficiency","authors":"Majid Ali ,&nbsp;Xinfang Jin ,&nbsp;Fuqiang Liu ,&nbsp;Ertan Agar ,&nbsp;Hsi-Wu Wong ,&nbsp;Snigdha Rashinkar ,&nbsp;Mihriye Doga Tekbas","doi":"10.1016/j.jelechem.2025.119130","DOIUrl":"10.1016/j.jelechem.2025.119130","url":null,"abstract":"<div><div>This study investigates the short-term performance and efficiency of a benchtop proton exchange membrane (PEM) electrolyzer for hydrogen production under dynamic power input conditions representative of renewable energy sources. Experiments were conducted to evaluate the effects of current fluctuation characteristics—specifically frequency and standard deviation—on electrolyzer behavior. Results demonstrate that rapid and high-amplitude current fluctuations lead to increased power consumption, voltage instability, and reductions in both stack and voltage efficiency when compared to steady-state operation. Smoother current profiles, characterized by lower standard deviations and lower frequencies, improved system stability, efficiency, and hydrogen production rates. Additionally, fully transient tests using real wind power profiles revealed the highest power consumption and operational variability, underscoring the challenges posed by fluctuating renewable inputs. While the findings provide valuable insights into the immediate response of PEM electrolyzers under dynamic conditions, they are limited to short-term observations. Further long-duration studies are necessary to evaluate long-term stability and degradation effects. Overall, this research contributes to the understanding of PEM electrolyzer integration with intermittent renewable energy sources and highlights the importance of power regulation strategies for improving efficiency and operational stability in hydrogen production systems.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"988 ","pages":"Article 119130"},"PeriodicalIF":4.1,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839399","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}

{"title":"Crystallinity-controlled oxygen vacancies of SmMn2O5 as an oxygen reduction catalyst for Zn-air battery","authors":"Xiao Li ,&nbsp;Xue-wei Wang ,&nbsp;Xiao-Ran Wen ,&nbsp;Shi-qi Li ,&nbsp;Kun Zhang ,&nbsp;Jia-cheng Yu ,&nbsp;Yan Guo","doi":"10.1016/j.jelechem.2025.119129","DOIUrl":"10.1016/j.jelechem.2025.119129","url":null,"abstract":"<div><div>Mn-based mullite, with its unique structure featuring two distinct Mn coordination environments, has garnered significant attention in the research and development of oxygen reduction reaction (ORR) catalysts. The nucleation and growth of SmMn₂O₅ were influenced by controlling the hydrothermal reaction time and temperature, resulting in SmMn₂O₅ with varying degrees of crystallinity. With the increase of hydrothermal temperature and time, the crystallinity of SmMn₂O₅ is enhanced, and the morphology changes from an amorphous lamellar structure to a finer and longer nanorod structure. SmMn₂O₅ with an amorphous lamellar structure prepared at 150 °C for 3 h has a maximum specific surface area of 355.35 m² g⁻¹. The electrochemical results indicate that the amorphous lamellar SmMn₂O₅ shows excellent ORR performance with a half-wave potential of 0.76 V. This is mainly due to the fact that crystallinity induces an increase in the number of oxygen vacancies, which increases the number of active sites and changes the valence state of Mn. The amorphous lamellar SmMn₂O₅ was used as a cathode in zinc-air batteries with a power density of 119 mW/cm², showing potential applications. This work demonstrates an effective and simple strategy for increasing the number of oxygen vacancies in SmMn₂O₅, which helps the development and application of SmMn₂O₅ in the field of electrocatalysis.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"988 ","pages":"Article 119129"},"PeriodicalIF":4.1,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852299","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}

{"title":"Anchoring enhancement of Graphdiyne by doping and molecular intercalation for Lithium−sulfur batteries","authors":"Xue-li Li ,&nbsp;Dong-Xing Song","doi":"10.1016/j.jelechem.2025.119131","DOIUrl":"10.1016/j.jelechem.2025.119131","url":null,"abstract":"<div><div>Lithium−sulfur (Li − S) batteries are the most promising next-generation energy storage devices due to the high energy density, low cost, and environmental friendliness. The shuttle effect of lithium polysulfides (LiPSs) have hindered the commercialization of Li − S batteries owing to the remarkable deteriorations to the Coulombic efficiency, capacity retention and cycle life. Herein, we propose a method of B element doping combining with methylbenzene molecular intercalation to modify graphdiyne (GDY) as the cathode of Li − S batteries, which strengthens the anchoring to LiPSs. First-principle calculations are performed to explore the adsorption configurations, energies, charge transfers and diffusion coefficients of S₈ and LiPSs. Pure GDY can only adsorbed S₈ and LiPSs weakly, resulting in the LiPSs can freely diffuse and dissolve into the electrolyte and then self-discharge. Then, GDY with B element doping (B@GDY), facilitates the charge exchange between adsorbates and substrate by enabling S gaining extra electrons from B elements, which further enhances the absorption energies. The molecular intercalation to B@GDY (B_Ben@GDY) induce a steric hindrance to restrict the diffusion of S₈ and larger LiPSs, making the anchoring effect significantly enhanced. Last, the comparison between adsorption energies and the binding energy between LiPSs and solvent molecules, further supports the anchoring effects of B@GDY and B_Ben@GDY to LiPSs. Our study serves as a guide for the design of the cathode free from the shuttle effect for Li − S batteries.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"988 ","pages":"Article 119131"},"PeriodicalIF":4.1,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833964","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}

{"title":"Synthesis of TEMPO-containing EDOT derivative monomer and its polymer performance for electrocatalytic selective oxidation of HMF to DFF","authors":"Jiahui Dai,&nbsp;Yuhang Ding,&nbsp;Huijie Liu,&nbsp;Zhenlu Shen,&nbsp;Meichao Li","doi":"10.1016/j.jelechem.2025.119128","DOIUrl":"10.1016/j.jelechem.2025.119128","url":null,"abstract":"<div><div>A novel monomer 4-(4-((2,3-dihydrothieno[3,4-b][1,4]dioxin-2-yl)methoxy)butoxy)-2,2,6,6-tetramethylpiperidin-1-oxyl (EDOT-TEMPO) linked by ether bond was successfully synthesized. The corresponding conducting polymer PEDOT-TEMPO was prepared on platinum electrode via electropolymerization and characterized by SEM, EDS, element mapping and FTIR. PEDOT-TEMPO electrode showed high electrocatalytic performance for selective oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-diformyl furan (DFF) in the presence of <em>N</em>-methylimidazole. Moreover, the electroactivity of PEDOT-TEMPO electrode was 85.3 % after consecutive scans of 100 cycles in 0.1 M TBAPF₆/CH₃CN solution. The electrochemical oxidation process of HMF on PEDOT-TEMPO electrode was investigated by in situ FITR spectroscopy and the possible reaction mechanism was proposed.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"988 ","pages":"Article 119128"},"PeriodicalIF":4.1,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143843980","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}

{"title":"Multi-effect enhanced photocathodic protection performance of 304 SS for atom-shared Bi/BiVO4/Bi2S3 photoanode based on decahedral BiVO4","authors":"Chenxiao Zhang,&nbsp;Yunhui Liu,&nbsp;Bohong Wang,&nbsp;Ting Zhang,&nbsp;Xiaotong Yang,&nbsp;Xiaoyang Wang,&nbsp;Dongmei Zeng,&nbsp;Minmin Zou,&nbsp;You Zhang","doi":"10.1016/j.jelechem.2025.119114","DOIUrl":"10.1016/j.jelechem.2025.119114","url":null,"abstract":"<div><div>The easily charge recombination and low electron transfer efficiency have limited the enhancement of photocathodic protection (PCP) performance of BiVO₄. In this study, Bi atom-shared Bi/BiVO₄/Bi₂S₃ heterojunction with decahedral BiVO₄ has been prepared by hydrothermal method and then mixed with PVDF to synthesize a photocathodic protection coating on 304 stainless steels (304 SS). Both the effect of morphology and the atom-shared Bi/BiVO₄/Bi₂S₃ heterojunction on microstructure and PCP performance of BiVO₄ were analyzed. Results indicate decahedral BiVO₄ has obtained higher PCP performance than normal BiVO₄, because the electrons and holes respectively accumulate at the (010) and (110) faces in decahedral BiVO₄ to promote e⁻/h⁺ pairs' separation. Then PCP performance of 304 SS has further enhanced for Bi atom-shared Bi/BiVO₄/Bi₂S₃ photoanode, with the significantly increased photocurrent density of 160 μA cm² and the more negative open circuit potential of −0.85 V vs Ag/AgCl. After comparing between Bi-shared Bi/BiVO₄/Bi₂S₃ and Bi/BiVO₄@Bi₂S₃ without sharing atom, we found that the best PCP performance for Bi/BiVO₄/Bi₂S₃ were resulted from three effects: the atomic-level contacts between BiVO₄ and Bi₂S₃ in Bi atom-shared heterojunction to enhance electron transfer efficiency, decahedral BiVO₄ to separate carriers and localized surface plasmon resonance (LSPR) effect of Bi to generate more thermalelectrons to transfer to 304 SS. This research offers a strategy to improve PCP capability of BiVO₄ through multi-effect of tuning the morphology and building atom-shared heterojunction.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"988 ","pages":"Article 119114"},"PeriodicalIF":4.1,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839397","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}

{"title":"Nanoflower-like Fe-doped CoP as highly efficient catalyst for alkaline hydrogen evolution reaction","authors":"Shuangshuang Liu ,&nbsp;Fanshuai Meng ,&nbsp;Bin Wang ,&nbsp;Yatong Feng ,&nbsp;Zhiling Du","doi":"10.1016/j.jelechem.2025.119116","DOIUrl":"10.1016/j.jelechem.2025.119116","url":null,"abstract":"<div><div>Transition metal phosphides (TMPs) have drawn much interest as a promising electrocatalyst with outstanding physicochemical properties. However, limited active sites and sluggish kinetics greatly limit their widespread applications. Herein, a highly efficient nanoflower-like TMPs of Fe-doped CoP catalyst is tactfully prepared. Electrochemical experiments indicate that the Fe-doped CoP catalyst with 30 min exchange duration time (FeCoP/NF-30) exhibits an extremely low overpotential of only 66.60 mV to achieve a current density of 10 mA cm⁻², a Tafel slope as low as 48.34 mV dec⁻¹ and a large electrochemical active area of 32.32 mF cm⁻² in alkaline solution. The enhanced hydrogen-evolution performance of FeCoP/NF-30 is attributed to the increased active sites and decreased crystalline feature, which is beneficial to adsorbing or desorbing reaction intermediates. In addition, an increased electron density around Co element is observed, which also can promote HER performance. This work not only provides a facile strategy for developing efficient CoP electrocatalysts but also promotes fundamental studies on catalyst design for electrocatalysis and beyond.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"987 ","pages":"Article 119116"},"PeriodicalIF":4.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143829253","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}

{"title":"Accelerating electrocatalytic water oxidation mediated by Cu complexes via modulation of geometry configuration","authors":"Junqi Lin ,&nbsp;Zhichao Qi ,&nbsp;Jinlin Hu ,&nbsp;Yanmei Chen ,&nbsp;Xiangming Liang ,&nbsp;Zhijun Ruan","doi":"10.1016/j.jelechem.2025.119117","DOIUrl":"10.1016/j.jelechem.2025.119117","url":null,"abstract":"<div><div>The development of robust and efficient catalysts for water oxidation is challenging. Herein, we demonstrate the significant regulation of water oxidation catalytic activity in mononuclear Cu complexes by disrupting their square pyramidal geometry through modulation of the alkyl chain length in pyridine-amine ligands. The electrocatalytic properties of two Cu complexes with homologous pyridine-amine ligands toward water oxidation under neutral conditions were investigated. Characterizations indicate that a slight increase in the length of the azaalkyl backbone of the ligand modulates the geometry of the metal center, as evidenced by increasing geometric parameters. This suggests a subtle but predictable trend in the geometry change from near-perfect square pyramidal to trigonal bipyramidal. Electrochemical measurements reveal that the pentacoordinated complex with a geometry closer to trigonal bipyramidal exhibits significantly higher catalytic activity and much lower overpotential for electrochemical water oxidation. Collective experiments and theoretical calculations elucidate that the alkyl chain structure significantly influences the intrinsic redox properties and electrocatalytic water oxidation activity of Cu complexes. This is achieved by favoring water nucleophilic attack on the Cu(II) center and facilitating the subsequent proton-coupled electron transfer process through the creation of a non-standard square pyramidal geometry.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"987 ","pages":"Article 119117"},"PeriodicalIF":4.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816785","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}

{"title":"Solvent effect on crown ether complexation of Na+, Cs+ and Sr2+ions investigated by ion transfer voltammetry at a polarized water/organic solvent interface","authors":"Jan Langmaier,&nbsp;Antonín Trojánek,&nbsp;Zdeněk Samec","doi":"10.1016/j.jelechem.2025.119115","DOIUrl":"10.1016/j.jelechem.2025.119115","url":null,"abstract":"<div><div>Ion transfer voltammetry of background electrolytes is used to complete the list of the values of the standard Gibbs energies of transfer of the Na⁺, Cs⁺ and Sr²⁺ cations and the Cl⁻ anion from water to benzonitrile (BN), nitrobenzene (NB), 1,2-dichloroethane (1,2-DCE) and α,α,α-trifluorotoluene (TFT), and the stability constants of the 1:1 or 1:2 crown ether complexes of the studied cations with dibenzo-18-crown-6 (B₂18C6) in the solvent listed. The results agree well with the available literature data or fit in the correlations previously reported. A strong solvent effect on the stability constant is observed, which is proposed to be associated with the solubility of water in the particular solvent, in contrast to current explanations referring to the donor number or the dielectric permittivity of the solvent, or the transfer Gibbs energy of the ion. Standard Gibbs energies of transfer of the B₂18C6 complexes from water to BN, NB, 1,2-DCE or TFT are evaluated with the help of a thermodynamic cycle, and compared with the transfer Gibbs energies of the 18C6 complexes determined by the present voltammetric measurements. Remarkable differences of about 20 kJ mol⁻¹ between the transfer Gibbs energies for the B₂18C6 and 18C6 complexes, which are probably connected with the presence of two aromatic rings on B₂18C6 macrocycle, are surprisingly not very sensitive to the nature of the ion or the solvent.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"987 ","pages":"Article 119115"},"PeriodicalIF":4.1,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143816784","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}

{"title":"Graphite carbon nitride-based metal-free bifunctional electrocatalysts for anion exchange membrane water electrolyzer","authors":"Ga Young Jang ,&nbsp;Sun Young Kang ,&nbsp;Hee Ji Choi ,&nbsp;GeumBi Na ,&nbsp;Hosung Choi ,&nbsp;Ji Eun Park ,&nbsp;Ok-Hee Kim ,&nbsp;Yong-Hun Cho ,&nbsp;Yung-Eun Sung","doi":"10.1016/j.jelechem.2025.119111","DOIUrl":"10.1016/j.jelechem.2025.119111","url":null,"abstract":"<div><div>Anion exchange membrane water electrolyzers (AEMWEs) are considered promising technologies that outperform alkaline water electrolyzers and proton-exchange membrane water electrolyzers due to their various advantages. In particular, one of the most important advantages of AEMWEs is that it does not have to use rare precious metal materials such as iridium and platinum as a catalyst. Therefore, for the commercialization and industrialization of AEMWE technology, basic research on cell performance using robust non-precious metal catalysts is urgently needed. Consequently, in this paper, metal-free electrocatalysts based on graphite carbon nitride were synthesized and nitrogen-doped carbon nanofiber was applied as a support. These materials exhibited oxygen evolution reaction (OER) activity comparable to the commercial NiFeO catalyst and demonstrated hydrogen evolution reaction (HER) activity, thereby substantiating its potential as a bifunctional catalyst. Furthermore, the application of the graphite carbon nitride to the anode of membrane electrode assemblies (MEAs) revealed outstanding performance with a current density of 389 mA cm⁻² at 1.9 V, and excellent durability within a full-cell system. Notably, by incorporating graphite carbon nitride at both the cathode and anode electrocatalyst, we have successfully achieved a current density of 272 mA cm⁻² at 1.9 V in a fully non-metal catalyst based AEMWE system. Such results will serve as a valuable source of inspiration for researchers in non-metal catalysts in electrolysis devices.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"987 ","pages":"Article 119111"},"PeriodicalIF":4.1,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143806833","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}

{"title":"High-performance binder-free supercapacitors based on electrochemically synthesized 2H-molybdenum disulfide/chlorine-doped graphene oxide (2H-MoS₂/Cl-GO) composite electrodes","authors":"Ayse V. Hacinecipoglu,&nbsp;Metin Gencten","doi":"10.1016/j.jelechem.2025.119112","DOIUrl":"10.1016/j.jelechem.2025.119112","url":null,"abstract":"<div><div>This research investigates the synthesis and characterization of molybdenum disulfide (MoS₂) and chlorine-doped graphene oxide (Cl-GO) composites as advanced materials for supercapacitors. Binder-free electrodes were prepared by an electrochemical method at room temperature, marking the pioneering use of 2H-MoS₂@Cl-GO materials in energy storage applications. The synthesis employed cyclic voltammetry (CV) for MoS₂ and chronoamperometry (CA) for Cl-GO. Comprehensive characterization, including Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD), elucidated the chemical structures of the materials. Field emission scanning electron microscopy (FESEM) combined with energy dispersive X-ray spectroscopy (EDS) revealed detailed surface morphology and elemental composition. Electrochemical performance evaluation by cyclic voltammetry, electrochemical impedance spectroscopy (EIS) and cyclic charge/discharge tests indicated promising capacitive behavior. The 2H-MoS₂@Cl-GO electrode exhibited a specific capacitance of 915.6 mF.cm⁻², outperforming the Cl-GO electrode (414.4 mF.cm⁻²) under similar conditions (0.25 mA.cm⁻² in 1.0 M H₂SO₄ electrolyte). Notably, the electrode retained over 90.2 % of its capacity after 5000 charge-discharge cycles, indicating excellent cycling stability. This study highlights the potential of 2H-MoS₂@Cl-GO composites as efficient and durable electrode materials for high performance supercapacitors, providing valuable insights for their practical application in energy storage technologies.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"987 ","pages":"Article 119112"},"PeriodicalIF":4.1,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807453","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}