Pub Date : 2025-06-23DOI: 10.1016/j.checat.2025.101429
Jun Guan, Ruihao Zhou, Hengxue Shi, Shenghan Zhang, Chaowei He, Muqing Cao, Lei Jiao, Huaping Xu
Carboradical reservoirs are non-radical precursors that controllably release stored radicals to directly participate in product formation, making them critically important in organic chemistry. However, no aryl radical reservoir has been reported to date. Here, we have constructed an aryl radical reservoir via polytelluroxane (PTeO)-mediated activation of arylboronic acids under white light. PTeO, featuring an inorganic Te–O backbone with organic side chains, facilitates the transfer of aryl substituents from boronic acids to Te sites, thereby storing them as reactive Te–C bonds and forming the reservoir. The stored radicals can be responsively released through the homolysis of Te–C bonds under white light or heating. Furthermore, air re-oxidizes the remaining Te radicals, restoring the Te–O backbone, regenerating PTeO, and imparting catalytic capability to PTeO. This work broadens the scope of synthetic methodologies and highlights the significant potential of PTeO in advancing organic synthesis.
{"title":"An aryl radical reservoir based on the activation of organoboronic acids by polytelluroxane","authors":"Jun Guan, Ruihao Zhou, Hengxue Shi, Shenghan Zhang, Chaowei He, Muqing Cao, Lei Jiao, Huaping Xu","doi":"10.1016/j.checat.2025.101429","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101429","url":null,"abstract":"Carboradical reservoirs are non-radical precursors that controllably release stored radicals to directly participate in product formation, making them critically important in organic chemistry. However, no aryl radical reservoir has been reported to date. Here, we have constructed an aryl radical reservoir via polytelluroxane (PTeO)-mediated activation of arylboronic acids under white light. PTeO, featuring an inorganic Te–O backbone with organic side chains, facilitates the transfer of aryl substituents from boronic acids to Te sites, thereby storing them as reactive Te–C bonds and forming the reservoir. The stored radicals can be responsively released through the homolysis of Te–C bonds under white light or heating. Furthermore, air re-oxidizes the remaining Te radicals, restoring the Te–O backbone, regenerating PTeO, and imparting catalytic capability to PTeO. This work broadens the scope of synthetic methodologies and highlights the significant potential of PTeO in advancing organic synthesis.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"51 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-19DOI: 10.1016/j.checat.2025.101396
Huayu Gu, Dongshuang Wu
Single-atom catalysts (SACs) have demonstrated remarkable potential in heterogeneous catalytic reactions. However, elucidating and precisely predicting the structure-activity relationships of SACs remain critical yet challenging for the rational design of high-performance catalysts. Reporting recently in Nature, Shi et al. uncover a linear relationship between the acetylene semi-hydrogenation activity of palladium (Pd1) SACs and the lowest unoccupied molecular orbital (LUMO) of oxide supports.
{"title":"Unveiling the support LUMO-activity correlation in single-atom catalysis","authors":"Huayu Gu, Dongshuang Wu","doi":"10.1016/j.checat.2025.101396","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101396","url":null,"abstract":"Single-atom catalysts (SACs) have demonstrated remarkable potential in heterogeneous catalytic reactions. However, elucidating and precisely predicting the structure-activity relationships of SACs remain critical yet challenging for the rational design of high-performance catalysts. Reporting recently in <em>Nature</em>, Shi et al. uncover a linear relationship between the acetylene semi-hydrogenation activity of palladium (Pd<sub>1</sub>) SACs and the lowest unoccupied molecular orbital (LUMO) of oxide supports.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"12 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144319657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-19DOI: 10.1016/j.checat.2025.101434
Haiting Cai, Shuai Wang, Huamin Wang
In the April 24 issue of Nature, Khivantsev et al. report an unexpected transformation of ceria nanoparticles into a nearly one-atomic-layer-thin architecture via a high-temperature reducing treatment. The resultant high-density 2D CexOy clusters exhibit markedly enhanced activity in catalyzing several industrially important redox reactions, providing a new dimension for tailoring ceria-containing catalysts.
{"title":"Engineering ultrathin 2D ceria architecture with superior catalytic performance for industrial redox reactions","authors":"Haiting Cai, Shuai Wang, Huamin Wang","doi":"10.1016/j.checat.2025.101434","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101434","url":null,"abstract":"In the April 24 issue of <em>Nature</em>, Khivantsev et al. report an unexpected transformation of ceria nanoparticles into a nearly one-atomic-layer-thin architecture via a high-temperature reducing treatment. The resultant high-density 2D Ce<sub><em>x</em></sub>O<sub><em>y</em></sub> clusters exhibit markedly enhanced activity in catalyzing several industrially important redox reactions, providing a new dimension for tailoring ceria-containing catalysts.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"8 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144319417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-19DOI: 10.1016/j.checat.2025.101426
Julia H. Baratta, Andrew S. Rosen
In the April 30 issue of the Journal of the American Chemical Society, Shen and co-workers report on an FeCoNiAlSi high-entropy alloy (HEA) for the Haber-Bosch process. Through density functional theory and kinetic Monte Carlo simulations, the HEA is predicted to have greater activity than iron at milder reaction conditions.
{"title":"Computational modeling of a high-entropy alloy for enhanced ammonia synthesis","authors":"Julia H. Baratta, Andrew S. Rosen","doi":"10.1016/j.checat.2025.101426","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101426","url":null,"abstract":"In the April 30 issue of the <em>Journal of the American Chemical Society</em>, Shen and co-workers report on an FeCoNiAlSi high-entropy alloy (HEA) for the Haber-Bosch process. Through density functional theory and kinetic Monte Carlo simulations, the HEA is predicted to have greater activity than iron at milder reaction conditions.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"234 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144319418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-19DOI: 10.1016/j.checat.2025.101435
Rileigh DiDomenico
Achieving sustainable ammonia production remains a considerable challenge. In this issue of Chem Catalysis, Ma et al. demonstrate that pairing electrochemical nitrate reduction with ethylene glycol oxidation enables the simultaneous production of ammonia and glycolic acid, showcasing the promising technical and economic potential of this coupled waste-valorization strategy.
{"title":"Increasing the value of sustainable chemical manufacturing with paired electrochemical systems","authors":"Rileigh DiDomenico","doi":"10.1016/j.checat.2025.101435","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101435","url":null,"abstract":"Achieving sustainable ammonia production remains a considerable challenge. In this issue of <em>Chem Catalysis</em>, Ma et al. demonstrate that pairing electrochemical nitrate reduction with ethylene glycol oxidation enables the simultaneous production of ammonia and glycolic acid, showcasing the promising technical and economic potential of this coupled waste-valorization strategy.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"69 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144319566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-19DOI: 10.1016/j.checat.2025.101397
Yunpeng Long, Yifan Li, Junhua Li, Yue Peng
In a recent issue of Nature Catalysis, Zhou et al. introduce an innovative cobaltosilicate zeolite with solely tetrahedral cobalt sites (CoS-1) for propane dehydrogenation. By eliminating unstable cobalt species through acid wash, CoS-1 mitigates coke formation and framework degradation. The catalyst outperforms benchmark Pt–Sn catalysts over multiple dehydrogenation-regeneration cycles.
{"title":"Cobaltosilicate zeolite with isolated tetrahedral cobalt sites for efficient propane dehydrogenation","authors":"Yunpeng Long, Yifan Li, Junhua Li, Yue Peng","doi":"10.1016/j.checat.2025.101397","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101397","url":null,"abstract":"In a recent issue of <em>Nature Catalysis</em>, Zhou et al. introduce an innovative cobaltosilicate zeolite with solely tetrahedral cobalt sites (CoS-1) for propane dehydrogenation. By eliminating unstable cobalt species through acid wash, CoS-1 mitigates coke formation and framework degradation. The catalyst outperforms benchmark Pt–Sn catalysts over multiple dehydrogenation-regeneration cycles.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"24 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144319334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-19DOI: 10.1016/j.checat.2025.101425
Zuxin Wen, Yixin Chen, Xianbiao Fu
In the May issue of Joule, Manthiram and co-workers report a sodium-naphthalene-titanium electrochemical cascade of nitrogen reduction for ammonia electrosynthesis at a rate of 475 nmol cm−1 s−1 and a Faradaic efficiency of 24%. This work provides a promising paradigm for developing efficient and low-cost metal-mediated ammonia reactors beyond lithium.
{"title":"Decoupling electron transfer and N2 activation in sodium-mediated cascade for ammonia synthesis","authors":"Zuxin Wen, Yixin Chen, Xianbiao Fu","doi":"10.1016/j.checat.2025.101425","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101425","url":null,"abstract":"In the May issue of <em>Joule</em>, Manthiram and co-workers report a sodium-naphthalene-titanium electrochemical cascade of nitrogen reduction for ammonia electrosynthesis at a rate of 475 nmol cm<sup>−1</sup> s<sup>−1</sup> and a Faradaic efficiency of 24%. This work provides a promising paradigm for developing efficient and low-cost metal-mediated ammonia reactors beyond lithium.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"15 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144319333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-17DOI: 10.1016/j.checat.2025.101423
Sinmyung Yoon, Jihun Kim, Kwangjin An
CeO2 is a prominent support material for heterogeneous catalysis owing to its exceptional oxygen storage capacity. CeO2 oxygen vacancy (VO) density critically influences thermal catalytic processes involving oxygen species, such as CO oxidation, CO2 hydrogenation, and volatile organic compound oxidation. This review examines recent strategies for controlling VO in CeO2, including lattice doping, nanostructure control, and defect engineering via external reduction, as well as their effects on thermal catalytic reactions. We present diverse in situ characterization techniques to elucidate the relationship between lattice oxygen mobility and catalytic reactivity during reactions. Strategies combining multiple approaches to achieve synergistic CeO2 reducibility enhancement are discussed. A comprehensive exploration of VO regulation strategies provides insights into optimizing CeO2-based systems in oxygen-mediated thermal catalysis.
{"title":"Strategies for oxygen vacancy formation in CeO2-based materials for thermal catalysis","authors":"Sinmyung Yoon, Jihun Kim, Kwangjin An","doi":"10.1016/j.checat.2025.101423","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101423","url":null,"abstract":"CeO<sub>2</sub> is a prominent support material for heterogeneous catalysis owing to its exceptional oxygen storage capacity. CeO<sub>2</sub> oxygen vacancy (V<sub>O</sub>) density critically influences thermal catalytic processes involving oxygen species, such as CO oxidation, CO<sub>2</sub> hydrogenation, and volatile organic compound oxidation. This review examines recent strategies for controlling V<sub>O</sub> in CeO<sub>2</sub>, including lattice doping, nanostructure control, and defect engineering via external reduction, as well as their effects on thermal catalytic reactions. We present diverse <em>in situ</em> characterization techniques to elucidate the relationship between lattice oxygen mobility and catalytic reactivity during reactions. Strategies combining multiple approaches to achieve synergistic CeO<sub>2</sub> reducibility enhancement are discussed. A comprehensive exploration of V<sub>O</sub> regulation strategies provides insights into optimizing CeO<sub>2</sub>-based systems in oxygen-mediated thermal catalysis.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"605 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144305508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-13DOI: 10.1016/j.checat.2025.101421
Volkan Çınar, Eva Peurrung, Jaeha Lee, Audrey Dannar, Dezhou Guo, Vinita Lal, Gunnar L. Sly, Cole Easton, Hojoon Lim, Adrian Hunt, Helen Chen, Yicheng Wang, Ryan T. Hannagan, Jean-Sabin McEwen, Phillip Christopher, Iradwikanari Waluyo, E. Charles H. Sykes
Knowledge of how trace amounts of more reactive metals influence the oxidation rate and mechanism of Cu surfaces is essential for developing strategies to optimize the performance of Cu-based catalysts. We find that the addition of 1% Rh to Cu(111) increases the initial O2 dissociation rate by approximately 9-fold. CO poisoning experiments reveal that single Rh atoms activate O2 and facilitate the spillover of atomic oxygen to Cu sites. Scanning tunneling microscopy (STM) and in situ X-ray photoelectron spectroscopy (XPS) support this mechanism, showing enhanced surface oxygen near Rh atoms. A density functional theory (DFT)-based model demonstrates that Rh binds the O2 precursor 0.15 eV more strongly than Cu(111) and lowers the O2 dissociation barrier by 0.02 eV. Both single-crystal and nanoparticle experiments show that at low oxygen pressures, Rh enhances Cu oxidation, whereas at higher pressures, it inhibits deeper oxidation, as evidenced by in situ ultraviolet-visible (UV-vis) spectra.
{"title":"Effect of dilute Rh on oxygen dissociation, spillover, and the oxidation of Cu across many orders of magnitude pressure","authors":"Volkan Çınar, Eva Peurrung, Jaeha Lee, Audrey Dannar, Dezhou Guo, Vinita Lal, Gunnar L. Sly, Cole Easton, Hojoon Lim, Adrian Hunt, Helen Chen, Yicheng Wang, Ryan T. Hannagan, Jean-Sabin McEwen, Phillip Christopher, Iradwikanari Waluyo, E. Charles H. Sykes","doi":"10.1016/j.checat.2025.101421","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101421","url":null,"abstract":"Knowledge of how trace amounts of more reactive metals influence the oxidation rate and mechanism of Cu surfaces is essential for developing strategies to optimize the performance of Cu-based catalysts. We find that the addition of 1% Rh to Cu(111) increases the initial O<sub>2</sub> dissociation rate by approximately 9-fold. CO poisoning experiments reveal that single Rh atoms activate O<sub>2</sub> and facilitate the spillover of atomic oxygen to Cu sites. Scanning tunneling microscopy (STM) and <em>in situ</em> X-ray photoelectron spectroscopy (XPS) support this mechanism, showing enhanced surface oxygen near Rh atoms. A density functional theory (DFT)-based model demonstrates that Rh binds the O<sub>2</sub> precursor 0.15 eV more strongly than Cu(111) and lowers the O<sub>2</sub> dissociation barrier by 0.02 eV. Both single-crystal and nanoparticle experiments show that at low oxygen pressures, Rh enhances Cu oxidation, whereas at higher pressures, it inhibits deeper oxidation, as evidenced by <em>in situ</em> ultraviolet-visible (UV-vis) spectra.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"9 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144278478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-13DOI: 10.1016/j.checat.2025.101418
Erin E. Drufva, John F. Cahill, Patricia M.B. Saint-Vincent, Alexis N. Williams, Vera Bocharova, Nikolas Capra, Flora Meilleur, Dana L. Carper, Célestin Bourgery, Kaito Miyazaki, Maina Yonemura, Yuki Shiraishi, Jerry M. Parks, Muchu Zhou, Isaiah T. Dishner, Jeffrey C. Foster, Stephen J. Koehler, Hannah R. Valentino, Ada Sedova, Vilmos Kertesz, Joshua K. Michener
Enzymes can rapidly and selectively hydrolyze diverse natural and anthropogenic polymers, but few have been shown to hydrolyze synthetic polyamides. In this work, we synthesized and characterized a panel of 95 enzymes from the N-terminal nucleophile hydrolase superfamily with 30%–50% pairwise amino acid identity. We found that nearly 40% of the enzymes had substantial nylon hydrolase activity, but there was no relationship between phylogeny and activity, nor any evidence of prior evolutionary selection for nylon hydrolysis. Several newly identified hydrolases showed substrate selectivity, generating up to 20-fold higher product titers with nylon-6,6 versus nylon-6. However, the yield was still less than 1%, necessitating further optimization before potential applications. Finally, we determined the crystal structure and oligomerization state of a nylon-6,6-selective hydrolase to elucidate structural factors that could affect activity and selectivity. These new enzymes provide insights into nylon hydrolase evolution and opportunities for analysis and engineering of improved hydrolases.
{"title":"Identification and characterization of substrate- and product-selective nylon hydrolases","authors":"Erin E. Drufva, John F. Cahill, Patricia M.B. Saint-Vincent, Alexis N. Williams, Vera Bocharova, Nikolas Capra, Flora Meilleur, Dana L. Carper, Célestin Bourgery, Kaito Miyazaki, Maina Yonemura, Yuki Shiraishi, Jerry M. Parks, Muchu Zhou, Isaiah T. Dishner, Jeffrey C. Foster, Stephen J. Koehler, Hannah R. Valentino, Ada Sedova, Vilmos Kertesz, Joshua K. Michener","doi":"10.1016/j.checat.2025.101418","DOIUrl":"https://doi.org/10.1016/j.checat.2025.101418","url":null,"abstract":"Enzymes can rapidly and selectively hydrolyze diverse natural and anthropogenic polymers, but few have been shown to hydrolyze synthetic polyamides. In this work, we synthesized and characterized a panel of 95 enzymes from the N-terminal nucleophile hydrolase superfamily with 30%–50% pairwise amino acid identity. We found that nearly 40% of the enzymes had substantial nylon hydrolase activity, but there was no relationship between phylogeny and activity, nor any evidence of prior evolutionary selection for nylon hydrolysis. Several newly identified hydrolases showed substrate selectivity, generating up to 20-fold higher product titers with nylon-6,6 versus nylon-6. However, the yield was still less than 1%, necessitating further optimization before potential applications. Finally, we determined the crystal structure and oligomerization state of a nylon-6,6-selective hydrolase to elucidate structural factors that could affect activity and selectivity. These new enzymes provide insights into nylon hydrolase evolution and opportunities for analysis and engineering of improved hydrolases.","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"37 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144278479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}