Applied Catalysis A: General最新文献

Confinement and synergy effect of bimetallic Cu-Ni clusters encapsulated in Beta zeolite for methyl acetate formation from methanol alone

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2024-11-28 DOI: 10.1016/j.apcata.2024.120045

Meng Liu , Caixia Miao , Zhijie Wu

{"title":"Confinement and synergy effect of bimetallic Cu-Ni clusters encapsulated in Beta zeolite for methyl acetate formation from methanol alone","authors":"Meng Liu , Caixia Miao , Zhijie Wu","doi":"10.1016/j.apcata.2024.120045","DOIUrl":"10.1016/j.apcata.2024.120045","url":null,"abstract":"<div><div>The direct synthesis of methyl acetate (MA) from methanol is an appealing and green approach, but an efficient catalyst is urgently needed. Herein, Cu-Ni bimetallic clusters, with a diameter of ∼1.2 nm, have been successfully encapsulated within BEA zeolite by an in-situ two-step encapsulation method (Cu-Ni@Beta), which significantly favors the dispersion of metals compared to the ion-exchanging (Cu/Ni@Beta) and wet impregnation approach (Cu-Ni/Beta). The as-synthesized Cu-Ni@Beta catalyst shows a MA formation rate of 1.46 mmol s−1 g(Cu+Ni)−1, which is much higher than Cu/Ni@Beta of 0.02 mmol s−1 g(Cu+Ni)−1 and Cu-Ni/Beta of 0.12 mmol s−1 g(Cu+Ni)−1. Characterization studies reveal that zeolite constraints could not only provide the spatial confinement for metal clusters but also induce an electronic interaction between confined Cu and Ni species in Cu-Ni@Beta. This interaction can increase and stabilize Cu+ sites as well as Lewis acid sites, which are crucial for improving catalytic performance. In-situ FTIR experiments indicate that the formation of formaldehyde (CH2O*) is the critical step for methanol to MA, and the CH2O* further couples with methoxy (CH3O*) to form acetate species (CH3CHO*), which subsequently couples with CH3O* to produce MA.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"690 ","pages":"Article 120045"},"PeriodicalIF":4.7,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Promotional effect of external magnetic field in FexOy/ZSM-5 for selective CO2 hydrogenation to C2–C4 and aromatic hydrocarbons

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2024-11-27 DOI: 10.1016/j.apcata.2024.120036

Ratchanon Chotchaipitakkul , Sirapat Munpollasri , Waleeporn Donphai , Wanwisa Limphirat , Yingyot Poo-arporn , Supinya Nijpanich , Pongsakorn Jantaratana , Thongthai Witoon , Paisan Kongkachuichay , Metta Chareonpanich

{"title":"Promotional effect of external magnetic field in FexOy/ZSM-5 for selective CO2 hydrogenation to C2–C4 and aromatic hydrocarbons","authors":"Ratchanon Chotchaipitakkul , Sirapat Munpollasri , Waleeporn Donphai , Wanwisa Limphirat , Yingyot Poo-arporn , Supinya Nijpanich , Pongsakorn Jantaratana , Thongthai Witoon , Paisan Kongkachuichay , Metta Chareonpanich","doi":"10.1016/j.apcata.2024.120036","DOIUrl":"10.1016/j.apcata.2024.120036","url":null,"abstract":"<div><div>This study employed confined-space ZSM-5 zeolite in conjunction with an external magnetic field to manipulate iron oxide phase transformations, thereby enhancing CO2 hydrogenation and the selective production of larger hydrocarbons. Phase transformations of iron oxide were controlled by varying reduction times (0.0–6.0 h) and magnetic flux intensities (0.0–27.7 mT). The FexOy/ZSM-5 zeolite catalyst, at 20.7 mT, exhibited a predominant Fe3O4 phase, achieving the highest CO2 conversion (28.1 %, or 3.3 times higher) and producing 14.4 times more C2–C4 hydrocarbons compared to catalysts without a magnetic field. The combined effects of confined-space ZSM-5 zeolite and the magnetic field simultaneously achieved control over reactant gas diffusion and facilitated formation of Fe3O4 and FeO phases. Olefins, formed via the reverse water-gas shift reaction, underwent chain growth reactions through Fischer-Tropsch synthesis and aromatization within the ZSM-5 zeolite. This approach presents promising opportunities for environmentally friendly CO2 conversion.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"690 ","pages":"Article 120036"},"PeriodicalIF":4.7,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Acid washing-assisted synthesis of porous Co3O4 nanosheet catalyst featuring efficient benzene oxidation performance

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2024-11-26 DOI: 10.1016/j.apcata.2024.120044

Chunyan Deng , Qun Li , Wanting Huang , Dong Xia , Peng Huang , Ruifang Lu , Luxi Tan , Lichun Dong

{"title":"Acid washing-assisted synthesis of porous Co3O4 nanosheet catalyst featuring efficient benzene oxidation performance","authors":"Chunyan Deng , Qun Li , Wanting Huang , Dong Xia , Peng Huang , Ruifang Lu , Luxi Tan , Lichun Dong","doi":"10.1016/j.apcata.2024.120044","DOIUrl":"10.1016/j.apcata.2024.120044","url":null,"abstract":"<div><div>Co-based catalysts exhibit considerable catalytic activity in oxidative reactions, yet challenges remain in synthesizing Co3O4 materials featuring both large surface area and high activity. Here, ultrathin La0.029CoOx nanosheets were post-treated with various concentrations of dilute nitric acid to obtain the two-dimensionally geometric Co3O4-H nanosheets catalysts. Among them, the resultant Co3O4-0.1H catalyst disclosed significantly enhanced catalytic activity, enabling to achieve 100 % conversion of benzene at 230 °C under an ultrahigh weight hourly space velocity (WHSV) of 60,000 mL·g−1·h−1. Additionally, the catalyst also displayed excellent catalytic durability and well catalytic stability over 5 cyclic tests and 45 h of long-period operation. A thorough characterization results revealed that the superior catalytic performance of Co3O4-0.1H was attributed to its distinct nanosheet morphology, high specific surface area and abundant surface defect sites. This work highlights the effectiveness and simplicity of acid washing treatment strategy in improving the catalytic oxidation activity of transition metal oxide catalysts.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"690 ","pages":"Article 120044"},"PeriodicalIF":4.7,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Single-atom catalysts supported on covalent triazine frameworks

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2024-11-26 DOI: 10.1016/j.apcata.2024.120035

Fedor S. Golub , Quanjun Xiang , Dmitri A. Bulushev

引用次数: 0

Production of γ-valerolactone from furfural by core-shell ZSM-5 supporting Ru-Zr bimetals through enhanced cascade reaction 核壳 ZSM-5 支承 Ru-Zr 双金属通过增强级联反应从糠醛制取γ-戊内酯

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2024-11-19 DOI: 10.1016/j.apcata.2024.120031

Yi Yuan , Xiaozhou Chen , Longbin Deng , Shuaishuai Zhou , Congzhen Qiao , Zhenheng Diao , Hongyan Wang , Yajie Tian

{"title":"Production of γ-valerolactone from furfural by core-shell ZSM-5 supporting Ru-Zr bimetals through enhanced cascade reaction","authors":"Yi Yuan , Xiaozhou Chen , Longbin Deng , Shuaishuai Zhou , Congzhen Qiao , Zhenheng Diao , Hongyan Wang , Yajie Tian","doi":"10.1016/j.apcata.2024.120031","DOIUrl":"10.1016/j.apcata.2024.120031","url":null,"abstract":"<div><div>In this study, a catalyst comprising Ru-Zr bimetals supported on core-shell ZSM-5 zeolite is tailored for catalytic conversion of furfural to yield γ-valerolactone via promoted two-step cascade reaction. ZrO2 encapsulated within hierarchical ZSM-5 zeolite is synthesized via a one-pot hydrothermal method, followed by sequential treatment with NaOH to yield Zr@ZSM-OH. Subsequently, the RuO2 component is introduced through impregnation, followed by calcination to obtain Ru-Zr@ZSM-OH. In conversion of furfural, the synergistic effect of highly dispersed ZrO2 acting as Lewis acid sites, combined with Brønsted acid sites provided by zeolite, facilitates the production of isopropyl levulinate via catalytic hydrogenation transfer, under either H2 or N2 atmosphere. In the secondary step, the introduced RuO2 promotes the adsorption and spillover of active H2, thereby accelerating the conversion of isopropyl levulinate to γ-valerolactone. The as-synthesized Ru-Zr@ZSM-OH catalyst achieves an impressive yield of 92.6 wt% of γ-valerolactone after just a 2 h reaction at 175 °C.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"690 ","pages":"Article 120031"},"PeriodicalIF":4.7,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142703789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Insight into the coke alleviation pattern over iron-based and boron-modified HZSM-5 bifunctional catalyst for direct CO2 hydrogenation to aromatics 铁基和硼改性 HZSM-5 双功能催化剂在二氧化碳直接加氢制芳烃过程中焦炭缓解模式的深入研究

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2024-11-19 DOI: 10.1016/j.apcata.2024.120029

Chonghao Chen , Zixin Song , Dianhua Liu

{"title":"Insight into the coke alleviation pattern over iron-based and boron-modified HZSM-5 bifunctional catalyst for direct CO2 hydrogenation to aromatics","authors":"Chonghao Chen , Zixin Song , Dianhua Liu","doi":"10.1016/j.apcata.2024.120029","DOIUrl":"10.1016/j.apcata.2024.120029","url":null,"abstract":"<div><div>Carbon dioxide (CO2) hydrogenation to aromatics is promising for reducing the burden of petroleum fuels. Herein, iron-based catalyst was mixed with boron modified HZSM-5 with pre-treatment and post-treatment method. The textural, acidic and element distribution properties over zeolite framework and external surface were studied. Combining with characterizations for internal and external coke, the element distribution-acidity-coke-stability relationship over boron-modified zeolite was put forward. Pre-treated zeolite witnessed reduced amount of external and total Brönsted acid sites (BAS) with similar degree, and increase paired Al (Alpair) fraction in the intersection site, leading to increased aromatics selectivity and reduced coke amount. While boron post-treatment significantly reduced external surface BAS and inhibited formation of condensed external coke. Afterwards, the mechanism of olefins aromatization was studied and found that PT-Z5-B greatly suppressed the overalkylation of light aromatics, thus alleviating the co-deactivation pattern generated by transformation of coke precursors from zeolite to iron-based catalyst.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"689 ","pages":"Article 120029"},"PeriodicalIF":4.7,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142702561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Acidic-basic-redox trifunctional Cu/P2W17V/{001}-TiO2 promotes photocatalytic lignin model conversion via tunable C-C/C-O cleavage 酸性-碱性-氧化还原三官能团 Cu/P2W17V/{001}-TiO2 通过可调的 C-C/C-O 裂解促进光催化木质素模型转化

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2024-11-19 DOI: 10.1016/j.apcata.2024.120030

Nan Shi , Yanjing Li , Na Li , Fushan Wen , Dong Liu

{"title":"Acidic-basic-redox trifunctional Cu/P2W17V/{001}-TiO2 promotes photocatalytic lignin model conversion via tunable C-C/C-O cleavage","authors":"Nan Shi , Yanjing Li , Na Li , Fushan Wen , Dong Liu","doi":"10.1016/j.apcata.2024.120030","DOIUrl":"10.1016/j.apcata.2024.120030","url":null,"abstract":"<div><div>Developing multifunctional photocatalysts is promising for selective and tunable lignin conversion to valuable chemicals. Herein, recyclable TCP photocatalysts with acidic, basic, and redox sites were developed by integrating {001} facet-containing TiO2, Cu, and polyoxometalates P2W17V together. Lignin model compound with β-O-4 structure was effectively and adjustably transformed to aromatic aldehydes and phenol in photocatalysis, involving Cβ-centered radical-mediated Cα-Cβ bond cleavage and elimination-hydrolysis-induced Cβ-O bond cleavage. Cα-Cβ bond scission selectivity exceeded 90 % by prolonging reaction time, whereas Cβ-O bond breakage was pronounced at short reaction time. Cu interacted with reacting species, improved charge transfer, and promoted Cβ-O bond scission. P2W17V acted as acidic-basic-redox components, accelerated electron acceptance, and facilitated Cα-Cβ bond cleavage. Additionally, alkaline lignin could also be photocatalyzed to vanillin. This work presents the first instance of Cα-Cβ/Cβ-O bond breakage modulation by varying reaction time. The design of trifunctional photocatalyst provides a new way for deriving valuable products from lignin.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"689 ","pages":"Article 120030"},"PeriodicalIF":4.7,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142702565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Two-dimensional heterojunction photocatalyst based dipyrenylmercapto perylenediimide for efficient breaking C-O bond of lignin models 基于二乙烯基巯基过乙烯二亚胺的二维异质结光催化剂可高效打断木质素模型的 C-O 键

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2024-11-19 DOI: 10.1016/j.apcata.2024.120032

Song Han, Yun Zhao, Mina Liang, Junyu Zhang, Huilong Xu, Xuefeng Ren, Guoling Li, Zhonghai Ni

{"title":"Two-dimensional heterojunction photocatalyst based dipyrenylmercapto perylenediimide for efficient breaking C-O bond of lignin models","authors":"Song Han, Yun Zhao, Mina Liang, Junyu Zhang, Huilong Xu, Xuefeng Ren, Guoling Li, Zhonghai Ni","doi":"10.1016/j.apcata.2024.120032","DOIUrl":"10.1016/j.apcata.2024.120032","url":null,"abstract":"<div><div>Photocatalysis has attracted widespread attention for the depolymerization of biomass into high-value aromatic under mild conditions. However, inorganic photocatalysts have drawbacks, such as low light efficiency and easy carrier recombination. Herein, a novel organic semiconductor dipyrenylmercapto perylenediimide (DPPDI) is synthesized, possessing a large conjugated plane by introducing two pyrenyl groups into the bay sites of perylenediimide, which is conducive to self-assembly forming two-dimensional (2D) nanosheets. Then, 2D heterojunctions were prepared by integrating DPPDI and P25 TiO2 through ultrasonic, which cleaves α-O-4 bonds in the lignin model benzyl phenyl ether (BPE). The Pd@4 %DPPDI/TiO2 can convert BPE completely within 30 min, and the α-O-4 bond cleavage selectivity reached ∼100 %, twice that of Pd@TiO2. DPPDI/TiO2 heterojunction not only extended the light-absorption wavelength but also mitigated recombination of photogenerated carriers, which increased the efficiency of photocatalysis. This work shows the potential application of 2D organo-inorganic heterojunction-based perylenediimide derivates in the field of biomass depolymerization.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"689 ","pages":"Article 120032"},"PeriodicalIF":4.7,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142702562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Assessing the role of oxygen vacancies on N2O catalytic decomposition over CaMn1-xFexO3-δ perovskites 评估氧空位对 CaMn1-xFexO3-δ 包晶催化分解 N2O 的作用

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2024-11-18 DOI: 10.1016/j.apcata.2024.120026

Ana Serrano-Lotina , Emanuela Mastronardo , Juan M. Coronado

{"title":"Assessing the role of oxygen vacancies on N2O catalytic decomposition over CaMn1-xFexO3-δ perovskites","authors":"Ana Serrano-Lotina , Emanuela Mastronardo , Juan M. Coronado","doi":"10.1016/j.apcata.2024.120026","DOIUrl":"10.1016/j.apcata.2024.120026","url":null,"abstract":"<div><div>Catalytic decomposition of N2O using redox perovskites can efficiently mitigate industrial emissions of this molecule. Here, we have selected the CaMn1-xFexO3-δ (CMF) oxides as catalysts to explore the role of oxygen vacancies on N2O decomposition, because for these materials the thermodynamics of oxygen non-stoichiometry is known in detail Perovskites with two levels of Fe-doping, CMF73 (30 % at.) and CMF91 (10 % at.), were prepared and extensively characterized. Higher conversion is obtained over CMF73, which also presents good stability. In the presence of N2O, variation of temperature prompts this perovskite to quickly adjust the value of δ by reversible release/uptake of O2. In parallel, surface vacancies can participate in the breaking of the N-O bond, as a part of a regenerative catalytic cycle yielding N2 and O2. A simple kinetic model shows good correlation between the number of oxygen vacancies, estimated by δ, and the catalytic activity, explaining the better performance of CMF73.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"689 ","pages":"Article 120026"},"PeriodicalIF":4.7,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142702564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molten-salt synthesis of highly condensed and nitrogen-tunable carbon nitride materials for metal-free and efficient synthesis of dimethyl carbonate 熔盐合成用于无金属高效合成碳酸二甲酯的高度凝聚和氮可调氮化碳材料

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2024-11-18 DOI: 10.1016/j.apcata.2024.120027

Xue-Wen Zhang, Jing-Yun Xu, Yi Lu, Fei Wang, Jie Xu , Bing Xue

{"title":"Molten-salt synthesis of highly condensed and nitrogen-tunable carbon nitride materials for metal-free and efficient synthesis of dimethyl carbonate","authors":"Xue-Wen Zhang, Jing-Yun Xu, Yi Lu, Fei Wang, Jie Xu , Bing Xue","doi":"10.1016/j.apcata.2024.120027","DOIUrl":"10.1016/j.apcata.2024.120027","url":null,"abstract":"<div><div>Dimethyl carbonate (DMC) is a building block in the modern chemical industry, and the transesterification of ethylene carbonate (EC) with methanol is a more sustainable strategy for the synthesis of DMC. Wherein, the design of metal-free and high-activity catalysts that can be easily prepared is a crucial research topic for clean synthesis of DMC. In this work, C3N4-T materials with non-metal components, high degrees of polycondensation, and adjustable distributions of nitrogen-containing species were successfully prepared by a facile molten-salt approach. Compared with g-C3N4 prepared by the traditional thermal polycondensation method, C3N4-T materials own larger specific surface areas and a higher degree of intralayer condensation. By simply adjusting the calcination temperatures, the fractions of bridging nitrogen species can be tuned, resulting in an improvement in alkaline strength. For the transesterification reaction of EC with methanol, the C3N4-500 materials demonstrated much higher activity than g-C3N4. Under a lower reaction temperature (100 °C) and a shorter reaction time (3 h), the maximum conversion of EC was 79.9 %. According to the characterization results of XPS and Hammett titration, the correlation between the catalytic activity of various C3N4-T materials and the alkaline properties was deliberated.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"689 ","pages":"Article 120027"},"PeriodicalIF":4.7,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142703019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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