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{"title":"Preparation of Sm-doped Cu-Ce high sulphur-resistant CO oxidation catalysts by combustion co-precipitation method","authors":"Liang ZHANG ,&nbsp;Yajiao LI ,&nbsp;Na WANG ,&nbsp;Huidong XIE ,&nbsp;Kaiyue YANG ,&nbsp;Chang YANG ,&nbsp;Chengmin GE","doi":"10.1016/S1872-5813(25)60536-6","DOIUrl":"10.1016/S1872-5813(25)60536-6","url":null,"abstract":"<div><div>Cu-Ce catalysts have been extensively studied owing to their excellent low-temperature CO oxidation activity. However, they are prone to deactivation in the presence of both water vapor and sulfur. In this study, Ce-Cu-Sm CO oxidation catalysts with enhanced sulfur resistance were synthesized by Sm doping using three methods: combustion, co-precipitation, and acid solution synergistic co-precipitation. The mechanism underlying the improved sulfur resistance was investigated using XRD, TEM, N₂ adsorption and desorption, XPS, H₂-TPR, and CO-TPD techniques. The results revealed that, under the coexistence of 1% CO, 10% H₂O, and 0.01% SO₂, the 20Ce-5Cu-4Sm-CG catalyst (prepared via acid solution synergistic co-precipitation) maintained a 100% CO oxidation efficiency for 220 min at 220 °C and a space velocity of 60000 mL/(g·h). After 280 min, the performance of the 20Ce-5Cu-4Sm-CG catalyst decreased to 70%, which was 1.3 times and 2.5 times higher than that of the 20Ce-5Cu-4Sm-C and 20Ce-5Cu-C catalysts prepared by the co-precipitation method, respectively. Characterization analysis revealed that Sm doping increased the CeO₂ crystal size to a certain extent and reduced the specific surface area of the catalyst. However, it also enhanced the concentrations of Ce³⁺, Cu⁺, and surface oxygen atoms, as well as the ratio of O_α and the number of oxygen vacancies in the CeO₂ lattice, which collectively improved the ability of the catalyst to oxidize CO under sulfur-containing atmosphere. The acid solution combustion synergistic co-precipitation method not only enhanced these five key properties for CO oxidation mentioned above, but also facilitated the formation of coordination complexes with the acid solution and Sm ions during combustion. These complexes were incorporated into the CeO₂ lattice to form a homogeneous solid solution, which made the catalyst particle size more uniform and the specific surface area larger, and eliminated the adverse effects of Sm doping on the surface structure. As a result, the oxidation ability of the catalyst was further improved. In summary, the 20Ce-5Cu-4Sm catalyst, prepared via the acid solution combustion and co-precipitation method, exhibits excellent sulfur resistance and enhances the performance of non-precious metal oxide CO oxidation catalysts for applications in sulfur-containing environments.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"53 7","pages":"Pages 1081-1092"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144696670","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}

{"title":"Research progress in catalytic conversion of lignin to produce liquid fuels","authors":"Yixiang WU ,&nbsp;Ying XU ,&nbsp;Xu ZENG ,&nbsp;Liming LU ,&nbsp;Jianchun JIANG","doi":"10.1016/S1872-5813(25)60539-1","DOIUrl":"10.1016/S1872-5813(25)60539-1","url":null,"abstract":"&lt;div&gt;&lt;div&gt;Lignin is recognized as the most abundant renewable aromatic polymer in nature with the highest concentration of benzene ring structures, and it stands out for its eco-friendly, sustainable, and biodegradable properties. The valorization of lignin through biorefinery strategies to produce aromatic compounds, which are subsequently converted into tailored lignin-derived liquid fuels via catalytic hydrogenation, deoxygenation, and other upgrading processes, has become a central focus in comprehensive biomass utilization research. This article systematically reviews the fundamental aspects and technological advancements in lignin-to-fuel conversion. Initially, it elaborates on the basic structural units of lignin—primarily the three phenylpropane monomers (guaiacyl, syringyl, and p-hydroxyphenyl units)—and their diverse interunit linkages, including β-O-4, α-O-4, 4-O-5, β-β, β-5, and 5-5 bonds, which collectively contribute to lignin's structural complexity and recalcitrance. These linkages dictate the depolymerization challenges and influence the selection of conversion pathways. Subsequently, it comprehensively reviews the principal technical pathways for manufacturing bio-based liquid fuels from lignin, particularly detailing three strategic approaches for producing liquid-phase products: lignin gasification-Fischer-Tropsch synthesis by gasifying lignin into syngas (CO/H&lt;sub&gt;2&lt;/sub&gt;) and then catalytically reassembling into liquid hydrocarbons, lignin pyrolysis liquefaction involving thermal decomposition at 400–800 °C under inert conditions to yield bio-oil, and lignin liquid-phase catalytic conversion by employing solvents and catalysts to depolymerize lignin into monomers under milder conditions. Special emphasis is placed on analyzing key technologies in fuel production, including catalytic hydrodeoxygenation (HDO) and carbon-carbon coupling reactions. The discussion critically evaluates current technological limitations and challenges in lignin-to-fuel conversion, highlighting two pivotal technical bottlenecks requiring urgent resolution: the design and optimization of more stable and efficient catalytic systems, and the improvement of separation/purification processes for lignin depolymerization products. Furthermore, building upon contemporary research trends in bio-liquid fuels, the paper proposes that future investigations should prioritize the development of high-carbon-number cyclic aviation biofuels and high-density biodiesel derived from lignin. These directions are particularly promising given lignin's unique aromatic structure and high energy density characteristics, which align well with the stringent performance requirements of advanced transportation fuels. The analysis underscores the necessity for interdisciplinary collaboration between catalysis science, process engineering, and materials chemistry to overcome existing barriers. Specifically, the development of multifunctional catalysts capable of simultaneously act","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"53 7","pages":"Pages 994-1008"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144696897","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}

{"title":"Hydrodesulfurization of dibenzothiophene over NiMoP/Al2O3 bimetallic phosphide catalyst","authors":"Liangliang ZHANG ,&nbsp;Jiaping LU ,&nbsp;Wanxi LI ,&nbsp;Boqiong LI ,&nbsp;Cailong XUE ,&nbsp;Hefei KANG ,&nbsp;Yajie LIU","doi":"10.1016/S1872-5813(24)60530-X","DOIUrl":"10.1016/S1872-5813(24)60530-X","url":null,"abstract":"<div><div>Preparation of highly active hydrodesulfurization catalysts is extremely meaningful for the sulfur removal from thiophene substances. In this work, commercial nano-Al₂O₃ with mesoporous structure supported monometallic phosphide (NiP/Al₂O₃ and MoP/Al₂O₃) and bimetallic phosphide (NiMoP/Al₂O₃ with various Ni/Mo molar ratio) catalysts are successfully prepared by temperature-programmed reduction. X-ray diffraction (XRD) result shows the Ni/Mo molar ratio affect the crystal phase in catalysts. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) characterizations co-confirm the interact between Ni and Mo elements in bimetallic phosphide. Catalyst evaluation in hydrodesulfurization of dibenzothiophene shows that bimetallic phosphide samples exhibit better catalytic performance than monometallic phosphide. 62.1% conversion and 86.3% biphenyl selectivity with 30 h stability are achieved over NiMoP/Al₂O₃ (Ni/Mo=1:1) catalyst at 400 °C under 3 MPa H₂. All characterization results demonstrate that the improved activity of bimetallic phosphide owes to the Ni-Mo synergistic effect in NiMoP/Al₂O₃ (Ni/Mo=1:1) catalyst. This finding provides a guide to the design of bimetallic catalyst with synergistic effect.</div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"53 7","pages":"Pages 1072-1080"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144696668","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}

{"title":"Association Between Gastroesophageal Reflux Disease and the Risk of Incident Chronic Obstructive Pulmonary Disease.","authors":"Ye Liao, Yun-Feng Zhou, Xiao-Rui Zhou, Xin Hu, Juan Liao, Lu Long","doi":"10.3881/j.issn.1000-503X.16279","DOIUrl":"https://doi.org/10.3881/j.issn.1000-503X.16279","url":null,"abstract":"<p><p>Objective To investigate the association between gastroesophageal reflux disease(GERD)and the risk of incident chronic obstructive pulmonary disease(COPD)and explore potential effect modifiers influencing this association.Methods Clinical data from 476 175 participants in the UK Biobank(2006-2010)were collected.A Cox proportional hazards model was used to assess the relationship between GERD and the risk of incident COPD.Subgroup analyses were conducted to examine potential modifiers of the primary findings.Results A total of 11 587(2.43%)new COPD cases were diagnosed.The Cox proportional hazards model revealed that GERD was associated with an increased risk of incident COPD(<i>HR</i>=1.59,95%<i>CI</i>=1.46-1.74,<i>P</i><0.001).GERD was linked to a higher risk of incident COPD in individuals aged<60 years(<i>P</i><0.001)and non-smokers(<i>P</i>=0.011).No association was observed between GERD and the risk of incident COPD in current smokers with a daily cigarette consumption<10 cigarettes(<i>P</i>=0.261).Conclusion GERD may increase the risk of incident COPD.</p>","PeriodicalId":6919,"journal":{"name":"中国医学科学院学报","volume":"47 3","pages":"402-407"},"PeriodicalIF":0.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697258","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}

{"title":"Progress in the Application of Stellate Ganglion Block in Non-Analgesic Fields.","authors":"Peng-Cheng Ye, Ying Ren, Wen-Liang Su, Hao Kong","doi":"10.3881/j.issn.1000-503X.16247","DOIUrl":"https://doi.org/10.3881/j.issn.1000-503X.16247","url":null,"abstract":"<p><p>Stellate ganglion block (SGB) is a specific type of peripheral nerve block in which local anesthetics and/or steroids are injected around the stellate ganglia.In the past,SGB was mainly used to alleviate pain-related syndromes.With the development of ultrasound technology,SGB has been widely used in non-analgesic fields,demonstrating significant therapeutic effects on arrhythmias,hot flashes,psychiatric disorders,cerebrovascular diseases,insomnia,and post coronavirus disease-2019 conditions in recent years.This study reviews the progress in the application of SGB in the non-analgesic fields.</p>","PeriodicalId":6919,"journal":{"name":"中国医学科学院学报","volume":"47 3","pages":"462-469"},"PeriodicalIF":0.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697294","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}

{"title":"Analysis on Care Service Preferences of Community Patients With Severe Mental Disorders in Beijing Based on Discrete Choice Experiment.","authors":"Jin-Qi Zhu, Wei Lu, Yu Xin, Yun Chen, Qing-Zhi Huang, Jun-Li Zhu","doi":"10.3881/j.issn.1000-503X.16281","DOIUrl":"https://doi.org/10.3881/j.issn.1000-503X.16281","url":null,"abstract":"<p><p>Objective To gain insights into the care service preferences and willingness of patients with severe mental disorders in Beijing,analyze the main factors affecting their participation in care services,and provide data support and decision-making reference for the optimal design of care services for patients with severe mental disorders and the improvement of relevant policies.Methods In July 2022,a questionnaire survey was conducted for a part of Beijing community patients with severe mental disorders selected by multi-stage stratified sampling,including the basic personal information and the preferences of discrete choice experiment.A mixed Logit model was used to perform regression analysis on the care service preferences,and the trade off between general and monetary attributes was quantified by willingness to pay(WTP).Results A total of 242 questionnaires were distributed,and 181 valid questionnaires were collected,with a response rate of 74.79%.The regression coefficients for the four attributes-service type,service content,service frequency,and service cost-all showed statistical significance(all <i>P</i><0.05).Patients' most preferred attribute level was a service frequency covering about 90% of the time per month/year( β=1.059),while the least preferred was full-time residential care( β=-1.025).Increasing the service frequency from 30% to 90% corresponded to a WTP of 492.5 yuan,while changing the service type from home-based care to full-time residential care resulted in a WTP of -476.6 yuan.Moreover,there were differences in care service preferences and WTP among patient groups with different characteristics(all <i>P</i><0.05).Conclusions Service type,service content,service frequency,and service cost all significantly affect the care service preferences of patients with severe mental disorders.There is heterogeneity in care service preferences among patient groups with different characteristics.</p>","PeriodicalId":6919,"journal":{"name":"中国医学科学院学报","volume":"47 3","pages":"425-433"},"PeriodicalIF":0.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697256","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}

{"title":"Effect of the Small Molecule Inhibitor of Kallikrein-Related Peptidase 7 Against Ovarian CancerA.","authors":"Hong-Juan Shi, Wei Liu, Li-Ling Hu, Xiao Tan","doi":"10.3881/j.issn.1000-503X.16231","DOIUrl":"https://doi.org/10.3881/j.issn.1000-503X.16231","url":null,"abstract":"<p><p>Objective To investigate the effect of the small molecule inhibitor C42 of kallikrein-related peptidase 7(KLK7)on ovarian cancer with elevated expression of KLK7 and evaluate the feasibility of C42 as a new therapeutic strategy for ovarian cancer.Methods The CCK-8 assay,flow cytometry,cell scratch assay,Transwell assay,and Western blotting were employed to assess the effects of C42 on the proliferation,migration,and invasion of the ovarian cancer cell line SKOV3,which was characterized by high KLK7 expression.Additionally,a subcutaneous xenograft model of ovarian cancer was established with SKOV3 cells in nude mice to evaluate the effects of C42 on the tumor growth and metastasis.The expression levels of proteins associated with tumor metastasis and invasion in the tumor tissue were examined by immunohistochemical techniques.Results The cellular experiment showed that C42 suppressed the proliferation,migration,and invasion(all <i>P</i><0.001)of SKOV3 cells,compared with the control group.The animal experiment showed that compared with the control group,the 10.2 mg/kg C42 group exhibited a decreased tumor weight(<i>P</i>=0.009) and attenuated liver metastases.Immunohistochemical staining revealed that the 10.2 mg/kg C42 group demonstrated down-regulated expression of the tumor proliferation marker Ki-67(<i>P</i>=0.002)and the tumor metastasis and invasion-associated proteins such as matrix metalloproteinase-9(<i>P</i>=0.027)and Vimentin(<i>P</i>=0.039).Conclusion The small molecule inhibitor C42 of KLK7 effectively suppresses the proliferation,migration,and invasion of ovarian cancer SKOV3 cells.</p>","PeriodicalId":6919,"journal":{"name":"中国医学科学院学报","volume":"47 3","pages":"366-374"},"PeriodicalIF":0.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697288","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}

{"title":"Research Advancements in the Role of the Brain Dopaminergic System in General Anesthesia.","authors":"Wei Luo, Cheng-Dong Yuan, Meng-Nan Hao, Jie Zhang, Yi Zhang","doi":"10.3881/j.issn.1000-503X.16245","DOIUrl":"https://doi.org/10.3881/j.issn.1000-503X.16245","url":null,"abstract":"<p><p>General anesthesia is widely used in clinical practice,whereas the exact mechanism behind the general anesthetic-induced reversible loss of consciousness remains unclear.Recent studies have revealed a close relationship between the dopaminergic system and general anesthetic-induced loss of consciousness.This system,encompassing dopamine neurons,dopamine receptors,and related neural pathways,regulates functions such as movement,memory,arousal,and cognition.The dopaminergic neurons in the ventral periaqueductal gray and ventral tegmental area,along with D1 receptors,have been shown to facilitate emergence from anesthesia.However,the role of D2 receptors remains controversial.This review summarizes recent advancements in the role of the dopaminergic system in general anesthesia and the underlying mechanism,with the aim of clarifying the mechanism of general anesthesia and providing a theoretical basis for preventing delayed emergence from anesthesia.</p>","PeriodicalId":6919,"journal":{"name":"中国医学科学院学报","volume":"47 3","pages":"441-446"},"PeriodicalIF":0.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697295","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}

{"title":"Exploration of the Anatomical Methods for the Long Occipital Nerve.","authors":"Min Wu, Tian-Han Hu, Rang-Rang Wu","doi":"10.3881/j.issn.1000-503X.16309","DOIUrl":"https://doi.org/10.3881/j.issn.1000-503X.16309","url":null,"abstract":"<p><p>Objective To further clarify the anatomical features of the long occipital nerve and summarize the rapid anatomical method for it,thus providing an operational basis for anatomists.Methods The bilateral sides of the head and neck specimens of 38 adult formalin-fixed cadavers were dissected,with a total of 76 specimens.The lateral cervical region,the sternocleidomastoid region,and the occipital region were dissected.The dissection focused on the long occipital nerve,the location and adjacent structural characteristics of which were carefully observed.Results The long occipital nerve was dissected out from 76 specimens.Through the posterior margin line(PML)anatomical method,the long occipital nerve was identified 1-3 cm above the accessory nerve,near the posterior border of the deep surface of the upper sternocleidomastoid in 70(92.1%)specimens.Through the inflection point(IP)anatomical method,the long occipital nerve was observed within the range of the circle with a radius of about 1.5 cm and centered on the midpoint of the line between the tip of the mastoid process and the tip of the external occipital protuberance in 6(7.9%)specimens.Conclusions The long occipital nerve can be quickly found by the PML method or IP method.Although the long occipital nerve can definitely be identified by the IP method,the anatomical operation is difficult.</p>","PeriodicalId":6919,"journal":{"name":"中国医学科学院学报","volume":"47 3","pages":"408-413"},"PeriodicalIF":0.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697291","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}

{"title":"Key Factors and Improving Paths of Promoting Long-Acting Injections in Communities in Beijing.","authors":"Yu Xin, Chen Chen, Yao Dong, Jin-Qi Zhu, Yun Chen, Qing-Zhi Huang, Jun-Li Zhu","doi":"10.3881/j.issn.1000-503X.16254","DOIUrl":"10.3881/j.issn.1000-503X.16254","url":null,"abstract":"<p><p>Objective To investigate the key factors influencing the implementation of long-acting injection-promoting policies and propose effective improving paths.Methods Qualitative interviews were carried out for stakeholders involved in the promotion of long-acting injections,based on the consolidated framework for implementation research.Additionally,countermeasures for identified barriers were proposed based on expert recommendations for implementation changes.Results A total of 46 health administrators,healthcare workers,and patients in Beijing were interviewed.The study identified several barriers in the strength and quality of evidence,adaptability,relative advantage,complexity and cost,patient needs and resources,external collaboration,external policies and incentives,organizational structural characteristics,and self-efficacy.Conclusions From the perspectives and experiences of stakeholders,the promotion of long-acting injections has shown initial success but still faces multiple obstacles.It is recommended that efforts should be made to coordinate and adapt policies,improve and incentivize relative organizations,and continuously strengthen the advocacy and education for individuals.</p>","PeriodicalId":6919,"journal":{"name":"中国医学科学院学报","volume":"47 3","pages":"414-424"},"PeriodicalIF":0.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697293","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}