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3篇 您的检索式:作者名="DING Shunmin"
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1Construction of mesoporous ceria-supported gold catalysts with rich oxygen vacancies for efficient CO oxidation显示文摘Bearing unique redox nature and high oxygen storage capacity,ceria(CeO_(2))has always been a promising CO oxidation catalyst support for gold(Au)catalysts and the like.Herein,a series of Au-CeO_(2)-P(P stands for pH value)samples was prepared by a co-precipitation method with the assistance of an alkaline environment and amino groups functionalized ordered mesoporous polymer(OMP-NH_(2)).Afterward,all samples described above were characterized that the Au-CeO_(2)-P catalysts are made of Au-Ce-O solid solution and Au nanoparticles(NPs)supported on CeO_(2).It turns out that OMP-NH_(2) is not just a simple sacrificial template for mesoporous structure,but also plays an important role as an amino source,explaining the presence of rich oxygen vacancies.Due to the concentration of oxygen vacancies in Au-Ce-O solid solution is the key factor for the oxygen mobility of CO oxidation,the catalytic results also demonstrate that the catalytic activity of Au-CeO_(2)-P catalysts is related to the concentration of their oxygen vacancies.Moreover,Au-CeO_(2)-9.6 with a highest concentration of oxygen vacancies(as high as 13.98%)in Au-CeO_(2)-P catalysts exhibits the best catalytic activity(complete conversion at 10℃).Xin Shen Wang Li Shunmin Ding Xiaohua Ma Shaohua Wu Weiming Xiao Rong Zeng Sanguo Hong Chao Chen 2022Journal of Rare Earths2022,40,3:2
2Highly Uniform Alkali Doped Cobalt Oxide Derived from Anionic Metal-Organic Framework:Improving Activity and Water Tolerance for CO Oxidation显示文摘A sequence of alkali metal cation-exchanged Co metal-organic frameworks(Co-MOFs),therein after denoted as M@Co-MOF,M=Na+,K+,Rb\and Cs+,was prepared and used as the precursors to obtain the corresponding alkali doped cobalt oxide(defined as M/C03O4,M=Na+,K\Rb\and Cs+)through calcination under air atmosphere.The cobalt oxide modified by unifbnn alkali metals exhibited a significant promotion of catalytic activity for CO oxidation.The activity of M/Co3O4 decreased in the order of Cs+>Na+>K+>Rb+.Experimental and theoretical results revealed that the anionic skeleton of Co-MOF could tacilely adsorb alkali metal cations and play a cnicial role in the formation of higlily unilonn alkali doped cobalt oxide.The further characterizations,such as temperature-programmed reduction of H2(H2-TPR),oxygen temperature-programmed desorption(O2-TPD),X-ray photoelectron spectroscopy(XPS),and in situ diffuse reflectance infrared Fourier transiorm(DRIFT)spectra demonstrated that the enlianced catalytic activity is originated from the interfacial electron transfer as well as weakened the Co-O bond strength,which promoted oxygen desorption from CO3O4 and fomiation of cobalt species with the lower valence state.The Cs/Co3O4 catalyst was maintained for 60 h without deactivation and still showed a high activity in the presence of water.LEI Huijin ZHANG Xinlu JIN Jiongke WANG Shuhua DING Shunmin ZHANG Ning CHEN Chao 2020Chemical Research in Chinese Universities2020,36,5:0
3Comprehensive landscape of resistance mechanisms for neoadjuvant therapy in esophageal squamous cell carcinoma by single-cell transcriptomics显示文摘Dear Editor,Preoperative neoadjuvant therapy combined with surgical resection is the standard treatment for locally advanced esopha-geal squamous cell carcinoma(ESCC).However,more than half of patients having a partial response to neoadjuvant therapy,which is considered as a therapy-resistant phenotype and the mechan-ism is still unclear.The heterogeneity of the ESCC with surgery alone therapy were characterized by single-cell RNA sequencing(scRNA-seq)previously,but few report was about ESCC patients with neoadjuvant therapy.1 It is emergent to illustrate the comprehensive hallmarks of neoadjuvant therapy-resistance in ESCC at single cell level.Yushang Yang Yanguo Li Haopeng Yu Zhenyu Ding Longqi Chen Xiaoxi Zeng Shunmin He Qi Liao Yi Zhao Yong Yuan 2023Signal Transduction and Targeted Therapy2023,8,9:0
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