ACS Catalysis 最新文献

{"title":"Elongated M–O Bonds Facilitate Dynamic Active Phase Reconfiguration for Enhanced Water Electrolysis Efficiency","authors":"Manna Liu,&nbsp;Yingxia Zhao,&nbsp;Yingying Xu,&nbsp;Qicong Jiang,&nbsp;Jiantao Yang,&nbsp;Yue Sun,&nbsp;Yuanhong Zhong,&nbsp;Ming Sun*,&nbsp;Youwen Liu* and Lin Yu*,&nbsp;","doi":"10.1021/acscatal.5c04793","DOIUrl":"10.1021/acscatal.5c04793","url":null,"abstract":"<p >Controlling active phase reconstruction is critical for enhancing the oxygen evolution reaction (OER) performance in water electrolysis. In this study, a series of catalysts D-Ni/NiMO (M = Fe, Co, Mn) with varying M–O bond lengths were synthesized using nickel oxide as a model electrocatalyst. Among them, Ni/NiCoO, featuring the longest M–O bond length, received particular attention. Comprehensive <i>in situ</i> and ex situ characterizations, including synchrotron radiation X-ray absorption spectroscopy, revealed that elongation of M–O bonds promotes the dynamic formation of active OER phases. A quantitative relationship was established: longer M–O bond lengths correlate with improved catalytic performance. Mechanistic studies revealed that stretched M–O bonds facilitate electron depletion from the <i>z</i>² orbital, enhancing metal–oxygen electron delocalization, and promoting the generation of highly active species (e.g., high-valent Ni³⁺) during the reconstruction process. As a result, the D-Ni/NiCoO catalyst exhibits superior OER performance, requiring an ultralow overpotential of only 300 mV at a current density of 100 mA cm^–2, while maintaining long-term stability over 60 h. Under industrially relevant operating conditions, the fully assembled D-Ni/NiCoO||Pt/C device showcased a superior performance profile, requiring a cell voltage of just 2.1 V to achieve 1000 mA cm^–2 and demonstrating robust operational durability for 50 h. This study provides fundamental insights into the relationship between M–O bond lengths and active phase reconstruction, offering a rational strategy for designing high-performance OER catalysts suitable for operation under industrial-level current densities.</p>","PeriodicalId":9,"journal":{"name":"ACS Catalysis ","volume":"15 17","pages":"15435–15443"},"PeriodicalIF":13.1,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144901548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"One-Step Synthesis of Aryl Monomers for Silicones Enabled by Mechanistic Study of Intermolecular Dehydrogenative C–H Silylations","authors":"Salina Som,&nbsp;Jihyeon Nam,&nbsp;Abdikani O. Farah,&nbsp;Luis Borrego-Castaneda,&nbsp;Shaila A. Shetu,&nbsp;Meaghan G. Flannagan,&nbsp;Jooyeon Lee,&nbsp;Jongwook Choi,&nbsp;Dimitris Katsoulis,&nbsp;Britt Vanchura,&nbsp;Marek Domin,&nbsp;Thomas E. Shaw,&nbsp;Stosh A. Kozimor,&nbsp;Danielle L. Gray,&nbsp;Paul Ha-Yeon Cheong* and Kangsang L. Lee*,&nbsp;","doi":"10.1021/acscatal.5c03372","DOIUrl":"10.1021/acscatal.5c03372","url":null,"abstract":"<p >Various aryl and heteroaryl monomers for polysiloxane materials are finally accessible by intermolecular dehydrogenative C–H silylation between commercial (hetero)arenes and the industry-relevant triethoxysilane. The development of well-defined rhodium catalysts enables the silylation of triethoxysilane, which is known for poor reactivity in this silylation and prone to undergo the redistribution side reaction. For the silylation of electronically unactivated arenes, portionwise addition of the silane is necessary to ensure a high efficiency. Mechanistic investigation including computational study led to the isolation of two important catalytic intermediates and their dynamic interconversion, which provide mechanistic insight into the importance of portionwise addition and the intrinsic difference between arenes and heteroarenes in the silylation. In addition to their monomer roles, (hetero)aryl triethoxysilanes can be broadly utilized as versatile intermediates or coupling agents in chemical synthesis.</p>","PeriodicalId":9,"journal":{"name":"ACS Catalysis ","volume":"15 17","pages":"15444–15458"},"PeriodicalIF":13.1,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144901547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dehydration of Methyl Lactate on Alkali Cation-Exchanged Faujasite: Effects of Metal Cation Identity and Water Pressure","authors":"Matthew A. Jacobson,&nbsp;Huston Z. Locht and David W. Flaherty*,&nbsp;","doi":"10.1021/acscatal.5c03906","DOIUrl":"10.1021/acscatal.5c03906","url":null,"abstract":"<p >Turnover rates for the catalytic dehydration of methyl lactate (ML) over ion-exchanged faujasite (FAU) catalysts depend on the identity of alkali metal cations (Na⁺, K⁺, Cs⁺) and local solvation effects. Analysis of rate measurements and in situ infrared spectroscopy gives evidence that the reaction involves kinetically relevant dissociation of adsorbed methyl lactate upon alkali metal cations. This process involves concerted methyl transfer to the surface and dissociation of the alkali metal from the framework, which occurs at cationic active sites that remain predominantly unoccupied under relevant conditions (0.5–10 kPa ML, 0.5–15 kPa H₂O, 563–583 K). Despite the mechanistic similarities, apparent activation enthalpies (Δ<i>H</i>_app^‡) decrease linearly (47 kJ mol^–1 from Na⁺ to Cs⁺) with ionization energy and cationic radius, and apparent activation entropies (Δ<i>S</i>_app^‡) decrease 74 J mol^–1 K^–1. These trends reflect electrostatic interactions that stabilize the cations to the anionic sites on the zeolite: stronger association between these charges leads to increasingly endothermic processes to displace the alkali metal to form a cationic methoxy and an intrapore metal lactate intermediate. Water physisorption measurements suggest alkali metal ions bind superstoichiometric quantities of water within FAU pores, and in situ infrared spectra suggest the concerted adsorption of ML requires reorganization of this water. Consequently, these processes introduce entropic gains that partially offset entropy losses associated with ML adsorption. Hence, turnover rates differ only by a factor of 2 among Na-, K-, and Cs-FAU at 573 K (ΔΔ<i>G</i>_app^‡ = 5 kJ mol^–1). These findings demonstrate the interplay of alkali metal ions with zeolite active sites and intrapore water clusters for ML dehydration, indicating that these interactions can be leveraged to deliver optimal performance under different reaction conditions.</p>","PeriodicalId":9,"journal":{"name":"ACS Catalysis ","volume":"15 17","pages":"15410–15424"},"PeriodicalIF":13.1,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144901551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photoinduced Copper-Catalyzed α-C(sp3)–H Azidation of Amines via Aryl Radical-Mediated 1,5-Hydrogen Atom Transfer","authors":"He Zhang,&nbsp;Wei Gu,&nbsp;Quanzhe Li,&nbsp;Jialian Zheng,&nbsp;Junying Xiao,&nbsp;Yuhan Kang,&nbsp;WMWW Kandegama,&nbsp;Xiaotian Qi*,&nbsp;Guozhu Zhang* and Rui Guo*,&nbsp;","doi":"10.1021/acscatal.5c04218","DOIUrl":"10.1021/acscatal.5c04218","url":null,"abstract":"<p >α-Azido amines represent valuable and privileged functional precursors for the incorporation of diverse nitrogen-based groups and have broad applications in biological research and drug discovery. However, the catalytic and practical preparation of α-azido amines remains a persistent challenge. Herein, by using a 2-iodobenzoyl group as a radical translocating group, we present a general and mild α-azidation of various readily available cyclic, acyclic, and aromatic amines with TMSN₃ in high regio- and diastereoselectivity via a photoinduced copper-catalyzed system. This protocol tolerates a broad array of functional groups and allows for the late-stage azidation of bioactive complex molecules. Mechanistic and density functional theory (DFT) studies support the reductive quenching of the excited-state copper(I) photocatalyst with azide anions for generating the azido radical and Cu(0) complex. The outer-sphere electron transfer (OSET) between the Cu(0) complex and 2-iodobenzamide followed by aryl radical-mediated 1,5-hydrogen atom transfer (HAT) generates the α-aminoalkyl radical. These two radical species then participate in the final cross-coupling through a radical-polar crossover (RPC) pathway to yield α-azido amines.</p>","PeriodicalId":9,"journal":{"name":"ACS Catalysis ","volume":"15 17","pages":"15425–15434"},"PeriodicalIF":13.1,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144901549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rhodium-Catalyzed Enantio- and Diastereoselective Synthesis of Allenyl Alcohols via Three-Component Dicarbofunctionalization of 1,3-Enynes","authors":"Heng Song,&nbsp;Ruijie Mi and Xingwei Li*,&nbsp;","doi":"10.1021/acscatal.5c05041","DOIUrl":"10.1021/acscatal.5c05041","url":null,"abstract":"<p >Multicomponent reactions have the advantage of high step-economy with the formation of multiple bonds in a controlled manner in a single operation. Nevertheless, asymmetric C–H bond activation that enables three-component coupling remains largely underexplored. Reported herein is rhodium-catalyzed C–H bond activation of indoles and sequential addition to 1,3-enyne and an activated aldehyde, allowing facile synthesis of chiral allenyl alcohols in high regio-, enantio-, and diastereoselectivity under mild reaction conditions. Mechanistic studies suggested the involvement of C–H bond activation and olefin insertion that gives a rhodium(III) propargyl intermediate, and the interaction between the propargyl and the aldehyde is both enantio- and diastereo-determining. In particular, a silver additive serves to enhance the diastereoselectivity.</p>","PeriodicalId":9,"journal":{"name":"ACS Catalysis ","volume":"15 17","pages":"15350–15357"},"PeriodicalIF":13.1,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144901712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oxygen-Bearing Defects in Graphene-Supported M–N–C Single-Atom Catalysts: A Hidden Determinant of Catalytic Performance","authors":"Yiheng Huang,&nbsp;Hui Hu,&nbsp;Chenhui Wang,&nbsp;Xuanhao Yuan,&nbsp;Xingyue Wu,&nbsp;Zhengping Qiao,&nbsp;Yan Li* and Chengxin Wang*,&nbsp;","doi":"10.1021/acscatal.5c03974","DOIUrl":"10.1021/acscatal.5c03974","url":null,"abstract":"<p >In the study of M–N–C single-atom catalysts (SACs), a series of unresolved issues point to the structural role of inevitable oxygen-bearing defects in the carbon lattice beyond the MN₄ moieties. Through explaining experimental observations on the enhanced oxygen reduction reaction (ORR) activity of hydrogenated Fe–N–C SACs, we demonstrated the necessity of incorporating such oxygen-bearing defects in modeling frameworks. Furthermore, the <i>sp</i>³-hybridized carbon atoms near these defects readily adsorb hydrogen atoms and exhibit competitive ORR performance. Therefore, this discovery also offers an alternative strategy for increasing the density of active sites. Subsequently, we performed systematic calculations to revisit the mechanism of reduction reactions of small molecules (O₂, CO₂, and N₂) over Fe–N–C SACs. The varying synergistic effects between different oxygen-bearing defect configurations and the FeN₄ moiety lead to distinct magnetic moments of Fe centers, unraveling the origin of the previously observed discrepancies in ORR performances of such catalysts. Furthermore, we established a unified modeling strategy based on oxygen-bearing defects and extended it to elucidate the experimentally observed enhancement in the catalytic activity for F-doped NiN₄ and Cl-doped ZnN₄ SACs. Overall, our calculations address three long-standing challenges in the field of M–N–C SACs: (1) discrepancies in reported catalytic performances despite identical MN₄ active sites, (2) low active site density, and (3) the absence of standardized modeling strategies for functionalized M–N–C SACs. This study provides a deep understanding of the structure–property relationship in graphene-supported SACs, emphasizing the crucial role of the inevitable oxygen-bearing defects in electrochemical reactions.</p>","PeriodicalId":9,"journal":{"name":"ACS Catalysis ","volume":"15 17","pages":"15358–15371"},"PeriodicalIF":13.1,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144901714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Metal-Oxide Nanotube Channel Microenvironment Inducing Strong Metal-Oxide Interplay: A Case Study with CO2 Hydrogenation to Methanol","authors":"Ying Zhang,&nbsp;Guijun Liu,&nbsp;Linghui Bian,&nbsp;Wenjing Sun*,&nbsp;Xiaomin Hu,&nbsp;Gao Yanhao,&nbsp;Fengying Gao,&nbsp;Xin Zhang,&nbsp;Biaohua Chen and Ning Wang*,&nbsp;","doi":"10.1021/acscatal.5c01936","DOIUrl":"https://doi.org/10.1021/acscatal.5c01936","url":null,"abstract":"<p >Nanoconfined architectures and interfacial electronic modulation are essential strategies for enhancing catalytic performance in multistep reactions. While carbon nanotubes (CNTs) are commonly used for confinement, their chemical inertness limits the formation of synergistic active sites and optimization of the reaction environment. Replacing CNTs with metal-oxide nanotubes offers significant improvements in electronic metal–support interaction (EMSI), tunable structure, mass transfer, and stability. Nevertheless, research on confinement effects in metal-oxide nanotubes remains underexplored. Herein, using the CO₂ hydrogenation as the model reaction, we engineered two distinct palladium–titania nanotube configurations: Pd@TiO₂ NTs (with Pd confined within nanotubes) and Pd/TiO₂ NTs (with Pd deposited on external surfaces). Density functional theory (DFT) calculations reveal that Pd@TiO₂ NTs exhibit enhanced EMSI, suppress the reverse water gas shift (RWGS) reaction, and promote methanol production more than Pd/TiO₂ NTs. Consistently, experimental results show that Pd@TiO₂ NTs achieve a 3.7-fold higher methanol selectivity and 2.4-fold higher CO₂ conversion compared with Pd/TiO₂ NTs. Moreover, Pd@TiO₂ NTs also demonstrates a space–time yield of 0.56 mmol g_cat^–1 h^–1, approximately 9 times higher than that of Pd/TiO₂ NTs. This significant finding provides critical guidance for engineering spatially confined catalysts utilizing metal-oxide nanotubes in heterogeneous catalytic systems.</p>","PeriodicalId":9,"journal":{"name":"ACS Catalysis ","volume":"15 17","pages":"15334–15349"},"PeriodicalIF":13.1,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144987847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Degradative Alcohol Functionalization by Titanocene Photocatalysis","authors":"Jagrut Atul Shah,&nbsp;Ashley E. Lojko,&nbsp;Zilu Tang,&nbsp;Yetong Lin,&nbsp;Emma H. Scher,&nbsp;Celeste A. Barefoot and Jeffrey M. Lipshultz*,&nbsp;","doi":"10.1021/acscatal.5c04085","DOIUrl":"10.1021/acscatal.5c04085","url":null,"abstract":"<p >Organotitanium complexes are scarcely employed in photocatalytic reactions despite their robust ligand-to-metal charge-transfer photochemistry. Herein, we describe the development of titanocene photocatalysis for the carbon–carbon bond cleavage functionalization of alcohol substrates. Mechanistic studies are consistent with <i>in situ</i> generation of a photoactive titanium alkoxide followed by subsequent photogeneration of an alkoxyl radical and β-scission to a carbon-centered radical, which is quenched through hydrogen atom transfer from an aryl thiol cocatalyst. A variety of alcohols, including pharmaceutical compounds, can be effectively cleaved in this fashion to the requisite carbonyl and hydrocarbon fragments. Furthermore, the catalytic manifold is employed in cyanation and chlorination reactions, indicating the generality of this mechanism in the degradative functionalization of alcohols.</p>","PeriodicalId":9,"journal":{"name":"ACS Catalysis ","volume":"15 17","pages":"15315–15323"},"PeriodicalIF":13.1,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144901715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unraveling Adsorbate-Induced Structural Evolution of Iron Carbide Nanoparticles","authors":"Peter S. Rice*,&nbsp;Jacob T. Groh,&nbsp;Nicolas S. Dwarica,&nbsp;Noah Gibson,&nbsp;James M. Mayer and Simone Raugei,&nbsp;","doi":"10.1021/acscatal.5c03463","DOIUrl":"10.1021/acscatal.5c03463","url":null,"abstract":"<p >Iron carbide (Fe_<i>x</i>C_<i>y</i>) nanoparticles (NPs) are promising candidates for replacing platinum group metals in industrial applications, such as high-temperature Fischer–Tropsch synthesis. However, due to their amorphous nature, characterization of the active sites has been challenging experimentally and computationally. Here, using a combined density functional theory (DFT), neural network interatomic potential-assisted global optimization, and ensemble learning study, we evaluate dynamic surface changes associated with syngas (H and CO) interactions. For this purpose, we have developed a general procedure that we use to model an experimentally relevant 270-atom Fe₁₈₂C₈₈ NP using the neural network-assisted stochastic surface walk global optimization algorithm (SSW-NN). Once generated, the Fe₁₈₂C₈₈ NP active sites and particle morphology are thoroughly characterized before the effects of syngas adsorbate interactions are explored by using DFT and molecular dynamics simulations. Lastly, we explore correlations between geometric and electronic features of the active sites and the adsorption of H (H_ads), using a regularized random forest machine learning algorithm. In doing so, we identified the Fe–C coordination number and p orbital occupancy as the most important descriptors affecting H_ads. Using a combined ML and quantum chemistry approach, our work demonstrates a general and efficient procedure for generating and probing complex surface phenomena on binary nanoparticles.</p>","PeriodicalId":9,"journal":{"name":"ACS Catalysis ","volume":"15 17","pages":"15324–15333"},"PeriodicalIF":13.1,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144901716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In Situ Characterization Reveals a Favorable Reconstruction of BiVO4 in Thermal catalysis","authors":"Cheng Chen,&nbsp;Yifan Xu,&nbsp;Chunyan Ma,&nbsp;Bolei Chen,&nbsp;Fanglan Geng,&nbsp;Xiaozhi Liu*,&nbsp;Maoyong Song* and Guibin Jiang,&nbsp;","doi":"10.1021/acscatal.5c03644","DOIUrl":"10.1021/acscatal.5c03644","url":null,"abstract":"<p >Reconstruction of catalysts, widely acknowledged in electrocatalysis, has rarely been explored in thermal catalysis. This study demonstrates a dynamic favorable reconstruction of BiVO₄ in thermal selective oxidation of benzylic C–H of toluene using <i>in situ</i> techniques. BiVO₄ undergoes reconstruction during high-temperature H₂ reduction, wherein Bi dissolves and aggregates into metallic Bi particle to form Bi/BiVO₄. Bi/BiVO₄ undergoes secondary reconstruction through high-temperature O₂ oxidation in thermal catalysis, wherein Bi migrates toward metallic Bi particle to form Bi₂O₃/BiVO₄. Bi₂O₃/BiVO₄ exhibits good adsorption performance on toluene and O₂, and promotes charge transport to generate more abundant active species. Therefore, a toluene conversion of 26,300.00 μmol·g_cat^–1·h^–1 and product yield of 410.00 mmol·g_cat^–1 were achieved, giving the highest reported product yield for thermal selective oxidation of the benzylic C–H bond of toluene. Based on this, Bi₂O₃/BiVO₄ catalysts with high-performance can be synthesized by a one-step hydrothermal method, opening up new avenues for thermal catalyst design.</p>","PeriodicalId":9,"journal":{"name":"ACS Catalysis ","volume":"15 17","pages":"15387–15394"},"PeriodicalIF":13.1,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144901717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}