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Frontiers of Optoelectronics 2023年第2期16卷 15-23页

作者： qi Han yadong Jiang Xianchao Liu Chaoyi Zhang Jun Wang School of Optoelectronic Science and Engineering University of Electronic Science and Technology of ChinaChengdu 610054China State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of ChinaChengdu 610054China

Black phosphorus quantum dots(BPQDs)are synthesized and combined with graphene sheet.The fabricated BPQDs/graphene devices are capable of detecting visible and near infrared radiation.The adsorption efect of BPQDs in graphene is clarifed by the relationship of the photocurrent and the shift of the Dirac point with diferent substrate.The Dirac point moves toward a neutral point under illumination with both SiO_(2)/Si and Si(3)N_(4)/Si substrates,indicating an anti-doped feature of photo-excitation.To our knowledge,this provides the frst observation of photoresist induced photocurrent in such systems.Without the infuence of the photoresist the device can respond to infrared light up to 980 nm wavelength in vacuum in a cryostat,in which the photocurrent is positive and photoconduction efect is believed to dominate the photocurrent.Finally,the adsorption efect is modeled using a frst-principle method to give a picture of charge transfer and orbital contribution in the interaction of phosphorus atoms and single-layer graphene.

关键词： Black phosphorus quantum dots Dirac point Photoconduction Adsoprtion

Single-atom catalysis enables long-life, high-energy lithium-sulfur batteries

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Nano Research 2020年第7期13卷 1856-1866页

作者： Zechao Zhuang qi Kang Dingsheng Wang yadong Li Department of Chemistry Tsinghua UniversityBeijing 100084China Department of Polymer Science and Engineering Shanghai Key Laboratory of Electrical Insulation and Thermal AgeingShanghai Jiao Tong UniversityShanghai 200240China

With high energy density and low material cost,lithium sulfur batteries(LSBs)emerge quite expeditiously as a fascinating energy storage system over the past decade.Broad applications of LSBs ranging from electric vehicles to stationary grid storage seem rather bright in recent literatures.However,there still exist many pressing challenges to be addressed because we do not yet fully understand and control the electrode-electrolyte interface chemistries during battery operation,such as polysulide shuttling and poor utilization of active sulfur.Single-atom catalysts(SACs)pave new possibilities of tackling the tough issues due to their decent applicability in the atomic-level identification of structure-activity relationships and reaction mechanism,as well as their structural tunability with atomic precision.This review comprehensively summarizes the very recent advances in utilization of highly active SACs for LSBs by stating and discussing the related publications,which involves catalyst synthesis routes,battery pertormance,catalytic mechanisms,optimization strategies,and promises to achieve long-lite,high-energy LSBs.We see that endeavors to employ SACs to modify sulfur cathode have allowed efficient polysulfide conversion and confinement,leading to the minimization of shuttle effect.Parallel efforts are being devoted to extending the scope of SACs to cell separator and lithium metal anode in order to unlock the full potential of LSBs.We also obtain mechanistic insights into battery chemistries and nature of SACs in their strong interactions with polysulfides through advanced in situ characterizations documented.Overall,acceleration in the development of LSBs by introducing SACs is noticeable,and this cutting edge needs more attentions to further promoting the design of better LSBs.

关键词： single-atom catalysis lithium-sulfur battery polysulfide conversion shuttle effect atomic-level insight

Optimization workflow for stimulation-well spacing design in a multiwell pad

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Petroleum Exploration and Development 2019年第5期46卷 1039-1050页

作者： WANG Junlei JIA Ailin WEI Yunsheng JIA Chengye QI Yadong YUAN He JIN Yiqiu Research Institute of Petroleum Exploration and Development PetroChinaBeijing 100083China

A flow mathematical model with multiple horizontal wells considering interference between wells and fractures was established by taking the variable width conductivity fractures as basic flow units.Then a semi-analytical approach was proposed to model the production performance of full-life cycle in well pad and to investigate the effect of fracture length,flow capacity,well spacing and fracture spacing on estimated ultimate recovery(EUR).Finally,an integrated workflow is developed to optimize drilling and completion parameters of the horizontal wells by incorporating the productivity prediction and economic evaluation.It is defined as nested optimization which consists of outer-optimization shell(i.e.,economic profit as outer constraint)and inner-optimization shell(i.e.,fracturing scale as inner constraint).The results show that,when the constraint conditions aren’t considered,the performance of the well pad can be improved by increasing contact area between fracture and formation,reducing interference between fractures/wells,balancing inflow and outflow between fracture and formation,but there is no best compromise between drilling and completion parameters.When only the inner constraint condition is considered,there only exists the optimal fracture conductivity and fracture length.When considering both inner and outer constraints,the optimization decisions including fracture conductivity and fracture length,well spacing,fracture spacing are achieved and correlated.When the fracturing scale is small,small well spacing,wide fracture spacing and short fracture should be adopted.When the fracturing scale is large,big well spacing,small fracture spacing and long fracture should be used.

关键词： horizontal well multi-staged fracturing fracture flow capacity fracture length well space fracture space parameters optimization

Single-atom site catalysts supported on two-dimensional materials for energy applications

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Chinese Chemical Letters 2021年第12期32卷 3771-3781页

作者： qi Xu Jian Zhang Dingsheng Wang yadong Li Department of Chemistry Tsinghua UniversityBeijing 100084China

Single-atom site catalysts(SACs) and two-dimensional materials(2DM) have gradually become two hot topics in catalysis over the past decades. Their combination with each other can further endow the derived SACs with extraordinary properties such as high loading, identical active sites, uniform coordination environment, distinctive metal-support interaction, and enhanced catalytic activities. In this review, we highlight the recent development in this specific research topic according to the types of substrates and focus on their applications in energy conversion field. Additionally, we also make a brief introduction to the synthesis and characterization methods for SACs supported on 2DM(SACs/2DM). Finally, the challenges and perspectives are summarized based on the current development status. It is believed that this work will make contributions to the rational design and fabrication of novel SACs/2DM, promoting their practical energy applications in the future.

关键词： Single-atom site catalysts Two-dimensional materials Synthesis Characterization Energy applications

Corrosion damage behaviors of rubber O-rings under simulated acid fracturing conditions

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Petroleum 2023年第2期9卷 248-254页

作者： Dezhi Zeng Yang Zhong Dayong Cao Peng Zhao Tuanhui Fu yadong qi State Key Laboratory of Oil&Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengduSichuan610500China Southern Sichuan Aerospace Energy Technology Ltd. LuzhouSichuan646000China Tianjin Branch CNPC LoggingTianjin300280China Research Institute of Bohai Petroleum Tianjin Branch of CNOOC LimitedTianjin300459China

To explore the damage behavior of O-ring in acid environment,a high-temperature and high-pressure(HTHP)autoclave was used to simulate the service environment of O-ring,and then 168h corrosion test of hydrogenated nitrile butadiene rubber(HNBR)and fluororubber(FM)O-rings were carried out.The corrosion damage behaviors of two kinds of rubber O-rings in the acidizing fluid were studied through determining their tensile strength,elongation at break,hardness,permanent compressive deformation,tensile fracture morphology and sealing property.The results showed that the crosssectional area and the compression permanent deformation increased,the tensile strength and hardness decreased when the HNBR and FM O-rings under the free state were subjected to acid corrosion.The elongation at break of HNBR decreased,and that of FM rubber increased greatly.Similar with free state,the HNBR and FM O-rings under sealed state also presented the same variation trend.The decrease in the reliability of the O-rings under the sealed state was less significant than that in the free state.In the test,tensile fractures were mostly brittle fractures,HNBR and FM O-rings had obvious corrosion damages such as deformation and swelling.The results could provide a technical basis for the selection of sealing materials,tool optimization design,and construction work in oil and gas fields.

关键词： Acid fracturing condition HNBR FM O-ring Damage behavior

Construction of diaminobenzoquinone imines via ferrocene-initiated radical reaction of benzoquinone with amines

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Chinese Chemical Letters 2020年第3期31卷 733-735页

作者： yadong Feng Ying Liu qi Fu Zhongai Zou Jinhai Shen Xiuling Cui College of Environment and Public Health Xiamen Huaxia UniversityXiamen 361024China Engineering Research Center of Molecular Medicine of Ministry of Education Key Laboratory of Fujian Molecular MedicineKey Laboratory of Xiamen Marine and Gene DrugsSchool of Biomedical SciencesHuaqiao UniversityXiamen 361021China

A ferrocene-initiated radical reaction of benzoquinone with amines has been successfully developed for the direct access to diaminobenzoquinone imines in high yields,in which the comme rcially available and cheap ferrocene was employed as a radical initiator and TBHP was used as an oxidant.Moreover,this reaction could be achieved with low loading of ferrocene(0.5 mol%).This protocol is highly efficient with good substrate tolera nce and provides a new approach for the construction of benzoquinone imines with potential pharmaceutical interest.

关键词： Benzoquinone imines Ferrocene-initiated Radical process Benzoquinone Amines

Nano-enabled solar driven-interfacial evaporation:Advanced design and opportunities

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Nano Research 2023年第5期16卷 6015-6038页

作者： Xin Zhao Xiangtong Meng Hongqi Zou Yanjun Zhang Yangjun Ma yadong Du Yuan Shao Jun qi Jieshan qiu State Key Laboratory of Organic–Inorganic Composites State Key Laboratory of Chemical Resource EngineeringCollege of Chemical EngineeringBeijing University of Chemical TechnologyBeijing 100029China Guangxi key Laboratory of Green Chemical Materials and Safety Technology Beibu Gulf UniversityQinzhou 535011China

Solar-driven interfacial evaporation(SDIE)is emerging as a promising pathway to solving the worldwide water shortage and water pollution.Nanomaterials(e.g.,plasmonic metals,inorganic/organic semiconductors,and carbon nanomaterials)and related nanochemistry have attracted increasing attention for the solar-to-vapor process in terms of broadband absorption,electronic structure adjustment,and surface/interface chemistry manipulation.Furthermore,the assembly of nanomaterials can contribute to the mass transfer,heat management,and enthalpy regulation of water during solar evaporation.To date,numerous nano-enabled materials and structures have been developed to improve the solar absorption,heat management(i.e.,heat confinement and heat transfer),and water management(i.e.,activation,evaporation,and replenishment).In this review,we focus on a systematical summary about the composition and structure engineering of nanomaterials in SDIE,including size and morphology effects,nanostructure optimizations,and structure-property relationship decoupling.This review also surveys recent advances in nanochemistry(e.g.,preparation chemistry and structural chemistry)deployed to conceptual design of nanomaterials.Finally,the key challenges and future perspectives of nanomaterials for solar evaporation are overviewed.This review aims at providing guidance for the design and construction of nanomaterials for high-efficiency SDIE on the basis of the aspects of materials science and chemical engineering.

关键词： nanomaterials nanochemistry solar-driven interfacial evaporation solar-to-heat conversion light/heat management water activation

Quantitative criteria for identifying main flow channels in complex porous media

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Petroleum Exploration and Development 2019年第5期46卷 998-1005页

作者： LI Xizhe LU Detang LUO Ruilan SUN Yuping SHEN Weijun HU Yong LIU Xiaohua QI Yadong GUAN Chunxiao GUO Hui PetroChina Research Institute of Petroleum Exploration&Development Langfang 065007China Department of Modern Mechanics University of Science and Technology of ChinaHefei 230026China Institute of Mechanics Chinese Academy of SciencesBeijing 100190China

To identify the type of main flow channels of complex porous media in oil and gas reservoirs,the"main flow channel index"is defined as the ratio of comprehensive permeability obtained from well test to matrix permeability obtained from core analysis or well logging.Meanwhile,a mathematical model is established based on equivalent flow assumption,the classification method for main flow channels is put forward,and quantitative characterization of main flow channels is realized.The method has been verified by analysis of typical gas reservoirs.The study results show that the"main flow channel index"can quantitatively classify types of flow channels.If the index is less than 3,the matrix pore is the main flow channel;if the index is between 3 and 20,the fracture is the main flow channel and the matrix pore acts as the supplement one;if the index is more than 20,the fracture is the only seepage channel.The dynamic analysis of typical gas reservoirs shows that the"main flow channel index"can be used to identify the type of flow channel in complex porous media,guiding the classified development of gas reservoirs,and avoiding development risk.

关键词： porous media matrix pore fracture flow channels main flow channel index quantitative identification criteria

Ir-catalyzed regiospecific mono-sulfamidation of arylquinazolinones

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Chinese Chemical Letters 2020年第1期31卷 58-60页

作者： yadong Feng Zhenyue Zhang qi Fu qiuhong Yao Huabin Huang Jinhai Shen Xiuling Cui College of Environment and Public Health Xiamen Huaxia UniversityXiamen 361024China Engineering Research Center of Molecular Medicine of Ministry of Education Key Laboratory of Fujian Molecular MedicineKey Laboratory of Xiamen Marine and Gene DrugsSchool of Biomedical SciencesHuaqiao UniversityXiamen 361021China

An Ir-catalyzed selective mono-sulfamidation of 2-arylquinazolinones has been achieved with a low catalyst loading under mild conditions.A series of regioselective mono-sulfamided 2-arylquinazolinones were obtained in up to 90%yields.Compared with our previous work of constructing di-sulfamidated 2-arylquinazolinones,the mono-sulfamided products could be obtained selectively by changing the ratio of substrates,the loading of catalyst,acid additive,and reaction time.

关键词： Ir-catalyzed C-H activation Mono-sulfamidation Selectivity Arylquinazolinones

Palladium-catalyzed oxidative homocoupling of 2-arylquinazolinones

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Chinese Chemical Letters 2020年第12期31卷 3263-3266页

作者： yadong Feng Zhengping Wu Ting Chen qi Fu qihua You Jinhai Shen Xiuling Cui College of Einviranment and Public Health Xiamen Huaxia UniversityXiamen 361024China Research Center of Molecular Medicime Mdinistry of EducationKey Laboratory of Fujian Molecular MedicineKey laboratory of Precision Medicine and Molecular Dinghosis of Fujian UniversitiesKey Laboratory of Xiamen Marine and Cene DrugsSchool of Bionedical SciencsHuaqiao University Xiamen 361021China

Pd-catalyzed oxidative homocoupling of 2-arylquinazolinones was successfully developed for the direct construction of biaryls via C—H bond activation.New well-defined structure that possessed two quinazolinone units was obtained with high efficiency and atomic economy.The protocols offer an efficient approach to the synthetically useful and functionalized biaryls in good yields using quinazolinone as a directing group.

关键词： 2-Arylquinazolinones Homocoupling Palladium-catalyzed C—H bond activation