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Signal Transduction and Targeted Therapy 2023年第3期8卷 905-907页

作者： Shao-bin Wang Yosuke Nagasaka dionne argyle Ayami Nagasaka Praveen Yerramothu Bradley DGelfand Jayakrishna Ambati Center for Advanced Vision Science University of Virginia School of MedicineCharlottesvilleVAUSA Department of Ophthalmology University of Virginia School of MedicineCharlottesvilleVAUSA Department of Biomedical Engineering University of Virginia School of MedicineCharlottesvilleVAUSA Department of Pathology University of Virginia School of MedicineCharlottesvilleVAUSA Department of Microbiology Immunologyand Cancer BiologyUniversity of Virginia School of MedicineCharlottesvilleVAUSA

Dear Editor,Vascular endothelial growth factor-A(VEGFA,also known as VEGF)is a critical angiogenic factor that regulates the physiological and pathological blood vessel growth.1 Increased abundance of VEGF in the eye underlies many forms of aberrant ocular angiogenesis and resultant vision loss,including in neovascular age-related macular degeneration(nvAMD),proliferative diabetic retinopathy(PDR).

关键词： degeneration ocular release

Mechanism and catalytic performance for direct dimethyl ether synthesis by CO2 hydrogenation over CuZnZr/ferrierite hybrid catalyst

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Journal of Environmental Sciences 2020年第6期32卷 106-117页

作者： Qingtao Sheng Run-Ping Ye Weibo Gong Xiufeng Shi Bang Xu Morris argyle Hertanto Adidharma Maohong Fan College of Chemistry and Chemical Engineering Taiyuan University of TechnologyTaiyuan 030024China Department of Engineering and Applied Science University of WyomingLaramieWY 82071USA Key Laboratory of Coal to Ethylene Glycol and Its Related Technology Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFujian 350002China University of Chinese Academy of Sciences Beijing 100049China Institute of Engineering Thermophysics Chinese Academy of SciencesBeijing 100190China Department of Chemical Engineering Brigham Young UniversityUT 84602USA Department of Petroleum Engineering University of WyomingLaramieWY 82071USA School of Energy Resources University of WyomingLaramieWY 82071USA School of Civil and Environmental Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

Direct synthesis of dimethyl ether(DME)by CO2 hydrogenation has been investigated over three hybrid catalysts prepared by different methods:co-precipitation,sol-gel,and solid grinding to produce mixed Cu,ZnO,ZrO2 catalysts that were physically mixed with a commercial ferrierite(FER)*** catalysts were characterized by N2 physisorption,X-ray diffraction(XRD),transmission electron microscopy(TEM),X-ray photoelectron spectroscopy(XPS),temperature programmed desorption of CO2(CO2-TPD),temperature programmed desorption of NH3(NH3-TPD),and temperature programmed H2 reduction(H2-TPR).The results demonstrate that smaller CuO and Cu crystallite sizes resulting in better dispersion of the active phases,higher surface area,and lower reduction temperature are all favorable for catalytic *** reaction mechanism has been studied using in situ diffuse reflectance infrared Fourier transform spectroscopy(DRIFTS).Methanol appears to be formed via the bidentate-formate(b-HCOO)species undergoing stepwise hydrogenation,while DME formation occurs from methanol dehydration and reaction of two surface methoxy groups.

关键词： CO2 hydrogenation Ether Dimethyl ether(DME)synthesis Mechanism

Photoreduction of CO_(2) in the presence of CH_(4) over g-C_(3)N_(4) modified with TiO_(2) nanoparticles at room temperature

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Green Energy & Environment 2021年第6期6卷 938-951页

作者： Ming Chen Jiachen Wu Chongchong Lu Xiao Luo Yangqiang Huang Bo Jin Hongxia Gao Xiaowen Zhang Morris argyle Zhiwu Liang Joint International Center for CO2 Capture and Storage(iCCS) Provincial Hunan Key Laboratory for Cost-effective Utilization of Fossil Fuel Aimed at Reducing Carbon-dioxide EmissionsDepartment of Chemical EngineeringCollege of Chemistry and Chemical EngineeringAdvanced Catalytic Engineering Research Center of the Ministry of EducationHunan UniversityChangsha410082China Department of Chemical and Petroleum Engineering University of WyomingLaramieWY82071USA Department of Chemical Engineering Brigham Young UniversityProvoUT84602USA

CO_(2)reduction under simulated sunlight over photocatalysts has become an attractive researcher area *** this work,carbon nitride compounds modified by TiO_(2)nanoparticles(TNPs)have been used for the photoreduction of CO_(2)in the presence of CH_(4)at room ***,a series of noble-metal-free TNP-graphitic-carbon nitride(g-C_(3)N_(4),also abbreviated CN)photocatalysts with different TNPs loadings and calcination temperatures have been synthesized by a wet-chemical *** characterization results of XRD,FTIR,SEM,TEM,BET,XPS,CO_(2)Adsorption,UV-vis,and PL demonstrate that the BET surface area and CO_(2)adsorption capacity have been improved after the ***,the g-C_(3)N_(4)has been successfully coupled with the TNPs and a heterojunction has formed at their *** characters contribute to increase the photocatalytic activity of TNPs-CN toward reducing CO_(2)in the presence of CH_(4),and its'performance is better than bare g-C_(3)N_(4),Titania(P_(25))-CN,MgO-CN,or Cu_(2)*** experiments are then carried out to investigate the sensitivity factors and optimum *** sensitivity results show that the reaction pressure makes little difference on the photocatalysis results,which verifies the photoinduced CO_(2)-CH_(4)reaction has a tiny change in gas *** addition,under the optimum conditions,the turnover frequency(TOF)of CO after 4 h reaction can reach 9.98μmol g-cat.^(-1)h^(-1),and traces of ethane and ethylene have been detected during the *** addition,surface acetate and carbonaceous deposit are found on the(20)TNPs-CN/450 surface after continuous 24 h irradiation under the optimum conditions,which resulting in the inactivation of the ***,possible reaction mechanisms have been proposed based on the results.

关键词： Noble-metal-free Photoinduced CO_(2)-CH_(4) Sensitivity factors Surface acetate Inactivation

Direct conversion of methane to methanol by electrochemical methods

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Green Energy & Environment 2022年第6期7卷 1132-1142页

作者： Haomin Jiang Luting Zhang Zhiwei Han Yang Tang Yanzhi Sun Pingyu Wan Yongmei Chen Morris D.argyle Maohong Fan Institute of Applied Electrochemistry College of ChemistryBeijing University of Chemical TechnologyBeijing100029China Department of Chemical Engineering Brigham Young UniversityProvoUT84602USA College of Engineering and Applied Sciences School of Energy ResourcesUniversity of WyomingLaramieWY82071USA

A convenient method for methane(CH_(4))direct conversion to methanol(CH_(3)OH)is of great significance to use methane-rich resources,especially clathrates and stranded shale gas resources located in remote ***,the activation of CH_(4) and the selectivity to the CH_(3)OH product are challenging due to the extreme stability of CH_(4) and relatively high reactivity of CH_(3)*** state-of-the-art‘methane reforming-methanol synthesis’process adopts a two-step strategy to avoid the further reaction of CH_(3)OH under the harsh conditions required for CH_(4) *** the electrochemical field,researchers are trying to develop conversion pathways under mild *** have found suitable catalysts to activate the C–H bonds in methane with the help of external charge and have designed the electrode reactions to continuously generate certain active oxygen *** active oxygen species attack the activated methane and convert it to CH_(3)OH,with the benefit of avoiding over-oxidation of CH_(3)OH,and thus obtain a high conversion efficiency of CH_(4) to CH_(3)*** mini-review focuses on the advantages and challenges of electrochemical conversion of CH4 to CH_(3)OH,especially the strategies for supplying electro-generated active oxygen species in-situ to react with the activated methane.

关键词： Methane Methanol Direct conversion Electrochemical methods Active oxygen species

Chemical looping based ammonia production--A promising pathway for production of the noncarbon fuel

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Science Bulletin 2022年第20期67卷 2124-2138,M0004页

作者： Qinghua Lai Tianyi Cai Shik Chi Edman Tsang Xia Chen Runping Ye Zhenghe Xu Morris D.argyle Dong Ding Yongmei Chen Jianji Wang Armistead G.Russell Ye Wu Jian Liu Maohong Fan College of Engineering and Applied Science University of WyomingLaramie WY 82071USA School of Energy and Power Engineering Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power EngineeringUniversity of Shanghai for Science and TechnologyShanghai 200093China Wolfson Catalysis Department of ChemistryUniversity of OxfordOxford Ox13QRUK College of Chemistry and Chemical Engineering Ocean University of ChinaQingdao 266100China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Department of Chemical and Materials Engineering University of AlbertaEdmonton Alberta T6G1H9Canada Department of Chemical Engineering Brigham Young UniversityProvo UT 84602USA Idaho National Laboratory Idaho Falls ID83415USA College of Chemistry Beijing University of Chemical TechnologyBejing 100029China School of Chemistry and Environmental Science Henan Normal UniversityXinxiang 453007China School of Civil and Environmental Engineering Georgia Institute of TechnologyAtlanta GA 30332USA MIIT Key Laboratory of Thermal Control of Electronic Equipment School of Power EngineeringNanjing University of Science&TechnologyNanjing 210094China DICP-Surrey Joint Centre for Future Materials Department of Chemical and Process Engineeringand Advanced Technology InstituteUniversity of SurreyGuilford Surrey GU27XH UK

Ammonia, primarily made with Haber-Bosch process developed in 1909 and winning two Nobel prizes, is a promising noncarbon fuel for preventing global warming of 1.5 °C above pre-industrial levels. However,the undesired characteristics of the process, including high carbon footprint, necessitate alternative ammonia synthesis methods, and among them is chemical looping ammonia production(CLAP) that uses nitrogen carrier materials and operates at atmospheric pressure with high product selectivity and energy efficiency. To date, neither a systematic review nor a perspective in nitrogen carriers and CLAP has been reported in the critical area. Thus, this work not only assesses the previous results of CLAP but also provides perspectives towards the future of CLAP. It classifies, characterizes, and holistically analyzes the fundamentally different CLAP pathways and discusses the ways of further improving the CLAP performance with the assistance of plasma technology and artificial intelligence(AI).

关键词： Ammonia synthesis Chemical looping Nitrogen carrier Renewable fuels Energy carrier