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Delicate chem.cal structure regulation of nonfullerene acceptor for efficient and large thickness organic solar cells

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Science China Chem.stry 2024年第5期67卷 1596-1604页

作者： Zhe Zhang Wany.ng Feng y.nxin Zhang Shaohui y.an y.y.ng Bai Peiran Wang Zhaoy.ng yao Chenxi Li Tainan Duan Xiangjian Wan Bin Kan y.ngsheng Chen State Key.Laboratory.and Institute of Elem.nto-Organic Chem.stry Frontiers Science Center for New Organic MatterThe Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin 300071China School of m.terials Science and Engineering National Institute for Advanced MaterialsNankai UniversityTianjin 300350China Chongqing Institute of Green and Intelligent Technology Chongqing SchoolUniversity of Chinese Academy of Sciences(UCAS Chongqing)Chinese Academy of SciencesChongqing 400722China

Inspired by.the success of CH-series acceptors, a sm.ll-m.lecular acceptor, CH-Tz was reported by.adopting a new conjugationextended electron-deficient unit([1,2,5]thiadiazolo[3,4-b]py.azine) on the central core. Owing to the enhanced inter-/intram.lecular interactions, CH-Tz exhibited near-infrared absorption and an effective three-dim.nsional m.lecular packing network in its single cry.tal. When blended with poly.er donor Pm., the binary.device achieved a high power conversion efficiency.PCE) of 18.54%, with a notable short-circuit current density.J_(sc)) of 27.54 m.A cm.2and an excellent fill factor(FF) over 80%,which can be partly.ascribed to the balanced charge transport properties in the blend film. After em.loy.ng D18-Cl as the third com.onent, an enhanced PCE of 18.85% was achieved due to a m.re obvious fiber network. Im.ressively. the CH-Tz-based OSC devices show excellent therm.l stability.and thickness insensitivity. Record-breaking Jscof 28.92 m.A cm.2was reached for Pm.:D18-Cl:CH-Tz ternary.device with a thickness of 560 nm. Besides, CH-Tz shows potential in fabricating m.lticom.onent high-perform.nce organic solar cells, where over 19% efficiency.could be realized in the quaternary.device. Our work advances the strong influence of electron-deficient central units on m.lecular photovoltaic properties and guides the design of acceptors for stable and large-thickness organic solar cells.

关键词： organic solar cells non-fullerene acceptor central unit large thickness m.lecular packing

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Screening and field application of m.crobial-flooding activator sy.tem.

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Energy.Geoscience 2024年第2期5卷 14-20页

作者： Xiutian yao Lipeng Gai y.n Feng Runlin Zhao y.ng Gao y.cui Zhang Chuanzhi Cui Jun m. Zhongwei Wu Gudao Oil Production Plant Sinopec Shengli Oilfield BranchDongyingShandong257231China Sinopec Shengli Oilfield Branch Petroleum Engineering Technology Research InstituteDongyingShandong257000China School of Petroleum.Engineering China University of Petroleum(East China)QingdaoShandong266580China Hubei Key.Laboratory.of Drilling and Production Engineering for Oil and Gas Yangtze UniversityWuhan430100China School of Petroleum.Engineering Yangtze UniversityWuhan430100China

This study.aim. to further enhance the oil recovery.of reservoirs in the Zhong-2 Block of the Gudao Oilfield by.identify.ng the m.st effective m.crobial-flooding activator sy.tem. and apply.ng them.in the *** began by.analy.ing the structure of the reservoirs'endogenous m.crobial com.unities to understand the potential im.act of m.crobial *** was followed by.determ.ning com.only.used activator sy.tem. based on their abilities to stim.late oil-displacem.nt functional *** laboratory.experim.nts on oil displacem.nt efficiency.and sweep characteristics,we determ.ned the optim.l activator injection m.thod(injection ratio)and the requisite bacterial concentration for m.xim.l m.crobial-flooding ***,we selected the optim.l activator sy.tem. and applied them.to field *** findings suggest the target block is highly.receptive to *** term. of perform.nce,the activator sy.tem. ranked as No.3>No.4>No.1>***,a deep activator sy.tem.when com.ared to the top-perform.ng No.3 sy.tem.exhibited a higher bacterial concentration peak and longer peaking *** oil displacem.nt effects were observed at a 1:4 vol ratio between the No.3 activator and deep activator sy.tem.,with bacterial concentrations of up to 106 cells/m. or *** tests with the selected activator sy.tem.,following a specific injection protocol,dem.nstrated a notable increase in oil production and a reduction in water cut.

关键词： Zhong-2 Block of Gudao Oilfield m.crobial flooding Laboratory.experim.nt Screening of activator sy.tem Field application

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Large-area superconducting nanowires fabricated based on laser exposure on photoresist

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Nano Research 2024年第9期17卷 8220-8225页

作者： Han Zhou Shangqing Li y.cong Huang Wenqian Liu Haohui Zhang yao Wu Wenzhi Zhang Enhua Chen Chaoy.n Zhang Xiaoliang Wang Daqian Liu Jianxin Lin Qingdao Innovation and Developm.nt Center of Harbin Engineering University Qingdao 266000China College of Intelligent sy.tem. and Engineering Harbin Engineering UniversityHarbin 150000China

To realize large-scale m.cro/nanofabrication process in superconducting devices,the nano laser direct writing(NLDW)as a potential tool was *** this paper,therm.l effect induced laser-m.tter(superconducting film.interaction based on laser direct writing on Nb film. and laser exposure on photoresist were investigated by.sim.lation and *** avoid nanoscale therm.l effect on superconducting film.,large-scale superconducting nanoarray. with the area up to 100μm.100μm.based on laser exposure on photoresist were *** with laser direct writing on superconducting film.,which lead to the degradation of superconducting perform.nce such as critical current,transition tem.erature,the superconducting nanoarray. based on laser exposure on photoresist m.intain excellent superconducting perform.nce without *** that,by.further optim.zing the process param.ters and the thickness of photoresist,the nanowires with the width down to nanom.ters are *** with the traditional electron beam.and ion beam.process,to som. extent,the nanowires fabrication process based on NLDW provides a m.re efficient and cost-effective path for the fabrication of large-area superconducting devices/circuits.

关键词： nano laser direct writing(NLDW) superconducting nanowire array. superconducting devices light-m.tter interaction

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Core-shell nanoparticle enhanced Ram.n spectroscopy.in situ probing the com.osition and evolution of interfacial species on PtCo surfaces

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Nano Research 2024年第6期17卷 4687-4692页

作者： Jing Liu Han-Liang Zhong Xiangy. Li m.-Fei y.e Wei-m.n y.ng Xueqiu y.u Jing-Hua Tian yao-Hui Wang Jian-Feng Li Fujian Provincial Key.Laboratory.of Oceanic Inform.tion Perception and Intelligent Processing School of Ocean Information EngineeringJimei UniversityXiamen 361021China College of Chem.stry Fuzhou UniversityFuzhou 350108China State Key.Laboratory.of Phy.ical Chem.stry.of Solid Surfaces MOE Key Laboratory of Spectrochemical Analysis and InstrumentationiChEMCollege of Chemistry and Chemical EngineeringCollege of MaterialsCollege of EnergyXiamen UniversityXiamen 361005China Innovation Laboratory.for Sciences and Technologies of Energy.m.terials of Fujian Province(IKKEm. Xiamen 361005China Shenzhen Research Institute of Xiam.n University Shenzhen 518000China

The com.osition and evolution of interfacial species play.a key.role during electrocataly.ic *** the structural evolution and interm.diate during cataly.ic process by.in situ characterization can shed new light on the electrocataly.ic reaction m.chanism.and develop highly.efficient ***,directly.probing the interfacial species is extrem.ly.difficult for m.st spectroscopic techniques due to com.licated interfacial environm.nt and ultra-low surface ***,electrochem.cal core-shell nanoparticle enhanced Ram.n spectroscopy.is utilized to probe the com.osition and evolution processes of interfacial species on Au@Pt,Au@Co,and Au@PtCo core-shell nanoparticle *** spectral evidences of interfacial interm.diates including hy.roxide radical(OH*),superoxide ion(O_(2)^(−)),as well as m.tal oxide species are directly.captured by.in situ Ram.n spectroscopy.which are further confirm.d by.the both isotopic experim.nt and density.functional theory.*** results provide a m.chanistic guideline for the rational design of highly.efficient electrocataly.ts.

关键词： in situ Ram.n core-shell nanoparticle PtCo interfacial species com.osition and evolution

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Isoindigo nanoparticles for photoacoustic im.ging-guided tum.r phototherm.l therapy

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Chinese Journal of Chem.cal Engineering 2024年第8期72卷 19-25页

作者： yao Pei Ran Wang Xiang Rong Xiang Xia Hexiang Wang Zongwei Zhang Tian Qiu Saran Long Jianjun Du Jiangli Fan Wen Sun Xiaojun Peng State Key.Laboratory.of Fine Chem.cals Frontiers Science Center for Smart Materials Oriented Chemical EngineeringDalian University of TechnologyDalian 116024China Ningbo Institute of Dalian University.of Technology Ningbo 315016China

The key.factor in phototherm.l therapy.lies in the selection of phototherm.l *** phototherm.l agents generally.have problem. such as poor phototherm.l stability.and low phototherm.l conversion ***,we have designed and sy.thesized an isoindigo(IID)*** used isoindigo as the m.lecular center and introduced com.on tripheny.am.ne and m.thoxy.groups as *** order to im.rove the phototherm.l stability.and tum.r targeting ability.we encapsulated IID into *** a result,the nanoparticles exhibited high phototherm.l stability.and phototherm.l conversion efficiency.67%)upon 635 nm.laser ***,the nanoparticles dem.nstrated a significant inhibitory.effect on live tum.rs in phototherm.l therapy.guided by.photoacoustic im.ging and provided a viable strategy.to overcom. the treatm.nt challenges.

关键词： Phototherm.l therapy Isoindigo Nanoparticles Photoacoustic im.ging

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Notch信号通路——对健康和疾病的机械论观点

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Engineering 2024年第3期34卷 212-232页

作者： yao m.ng Zhihan Bo Xiny. Feng Xiny. y.ng Penny.A.Handford Institute of m.dicinal Biotechnology Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050China Departm.nt of Biochem.stry University of OxfordOxford OX13QUUK State Key.Laboratory.of Respiratory.Health and m.ltim.rbidity Beijing 100050China

The Notch signaling pathway.is evolutionarily.conserved across m.tazoan species and play. key.roles in m.ny.phy.iological *** Notch receptor is activated by.two fam.lies of canonical ligands(Deltalike and Serrate/Jagged)where both ligands and receptors are single-pass transm.m.rane proteins usually.with large extracellular dom.ins,relative to their intracellular *** interaction of the core binding regions,presented on opposing cell surfaces,form.tion of the receptor/ligand com.lex initiates force-m.diated proteoly.is,ultim.tely.releasing the transcriptionally.active Notch intracellular *** review focuses on structural features of the extracellular receptor/ligand com.lex,the role of posttranslational m.difications in tuning this com.lex,the contribution of the cell m.m.rane to ligand function,and insights from.acquired and genetic diseases.

关键词： Notch signaling pathway Structural biology Gly.osy.ation Genetic disorders Cancer Pharm.cological agents

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Adaptive strategies of high and low nucleic acid prokary.tes in response to declining resource availability.and selective grazing by.protozoa

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Science China Earth Sciences 2024年第6期67卷 1872-1884页

作者： Chen HU Liuqian y. Xiaowei CHEN Jihua LIU yao ZHANG John BATT Xilin XIAO Qiang SHI Rui ZHANG Tingwei LUO Nianzhi JIAO Dapeng XU College of the Environm.nt and Ecology Xiamen UniversityXiamen 361102China State Key.Laboratory.of m.rine Environm.ntal Science College of Ocean and Earth SciencesFujian Key Laboratory of Marine Carbon SequestrationXiamen UniversityXiamen 361102China Joint Lab for Ocean Research and Education(LORE)of Dalhousie University Canadaand Shandong University and Xiamen UniversityXiamen 361102China Earth Ocean and Atmospheric Sciences ThrustThe Hong Kong University of Science and Technology(Guangzhou)Guangzhou 510000China Institute of m.rine Science and Technology Shandong UniversityQingdao 266237China Departm.nt of Oceanography Dalhousie UniversityHalifaxNova Scotia B3H 4R2Canada Institute for Advanced Study Shenzhen UniversityShenzhen 518060China Carbon Neutral Innovation Research Center Xiamen UniversityXiamen 361102China

Prokary.tes play.a fundam.ntal role in global ocean biogeochem.cal ***,how the abundance and m.tabolic activity.of ecologically.distinct subgroups(i.e.,high nucleic acid(HNA)and low nucleic acid(LNA)cells),and their regulating factors,change in response to changing m.rine environm.ntal conditions rem.ins poorly.***,we delved into the tim.-evolving dy.am.c responses of the HNA and LNA prokary.tic subgroups to declining resource availability.and selective grazing by.protozoa by.conducting a 73-day.incubation experim.nt in a large-volum.(117,000 L)m.crocosm.that facilitates com.unity.level *** found that the m.tabolic activity.of the HNA subgroup was higher than that of the LNA subgroup when the m.crocosm.was resource replete but that the HNA subgroup declined m.re rapidly.than the LNA subgroup as the resources becam. increasingly.scarce,leading to a steadily.increasing contribution of LNA cells to prokary.tic ***,as resources in the m.crocosm.becam. lim.ted,protozoan grazing preference shifted from.the HNA to the LNA subgroup and the contributions of the LNA subgroup to the carbon flow within the m.crocosm.*** findings highlight the resilience of LNA cells in resource-lim.ted environm.nts,illum.nate the critical role of selective grazing by.protozoa in balancing distinct prokary.tic subgroups under changing resource conditions,and dem.nstrate the com.lex and adaptive interactions between protozoa and prokary.tes across diverse environm.ntal contexts.

关键词： m.crobial loop m.crocosm.experim.nt Prokary.te Top-down and bottom.up controls Carbon flow

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南川地区浅层常压页岩气吸附解吸机理与开发实践

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天然气工业 2024年第2期44卷 14-22页

作者：姚红生中国石化华东油气分公司

中国浅层常压页岩气勘探开发尚处于探索阶段,目前在四川盆地及周缘地区实施的多口浅层页岩气井钻遇含气层显示良好,初步揭示了浅层页岩气具有较大的勘探开发潜力。但浅层常压页岩中天然气的赋存状态以吸附气为主,勘探开发面临吸附解吸... 详细信息

中国浅层常压页岩气勘探开发尚处于探索阶段,目前在四川盆地及周缘地区实施的多口浅层页岩气井钻遇含气层显示良好,初步揭示了浅层页岩气具有较大的勘探开发潜力。但浅层常压页岩中天然气的赋存状态以吸附气为主,勘探开发面临吸附解吸规律不清、针对性排采工艺尚待建立等问题。为此,以重庆市南川地区武隆区块常压页岩气田为对象,选取不同埋深条件下的岩心样品,开展了页岩储层评价与室内等温吸附实验,基于等温吸附曲线,建立了浅层页岩气吸附解吸模型并划分了吸附气3个解吸阶段,明确了浅层常压页岩气吸附解吸机理及其影响因素。研究结果表明:(1)浅层常压页岩气等温吸附曲线呈“厂”字形特征,随着储层压力下降,解吸速率从缓慢解吸突变至快速解吸;(2)通过对解吸效率曲线的曲率进行求解,可得到解吸速率突变拐点对应的“敏感解吸压力”,盆外浅层常压页岩气敏感解吸压力一般介于1.8~2.5 m.a;(3) PD1HF井开展降流压解吸试验,通过人工举升将井底流压降至2.5 m.a以下时吸附气快速解吸释放,气井产能达到原来的5倍以上,实现了浅层常压页岩气井产能的重大突破。结论认为,南川地区武隆区块浅层常压页岩气吸附解吸特征的明确及其开发实践的成功,对推动南川地区浅层常压页岩气效益开发及国内同类型浅层常压页岩气的开发具有重要指导意义。

关键词：浅层常压页岩气南川地区武隆区块吸附机理解吸规律含气量敏感解吸压力

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m.rrorless m.m. im.ging:a nonlinear vibrational approach utilizing aerosol-jetted PZT-actuated fiber m.m. scanner for m.croscale illum.nation

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m.crosy.tem. & Nanoengineering 2024年第1期10卷 175-192页

作者： Wei-Chih Wang m.ng-yao Li Kuan-Chang Peng y.-Feng Hsu Benjam.n Estroff Pao-y.n y.n David Schipf Wen-Jong Wu Departm.nt of Power m.chanical Engineering National Tsing Hua UniversityNo.101Section 2Kuang-Fu RoadHsinchuTaiwan 30013China Institute of NanoEngineering and m.crosy.tem. National Tsing Hua UniversityNo.101Section 2Kuang-Fu RoadHsinchuTaiwan 30013China Departm.nt of m.chanical Engineering University of WashingtonSeattleWA 98195USA Departm.nt of Electrical Engineering University of WashingtonSeattleWA 98195USA Departm.nt of Engineering Science and Ocean Engineering National Taiwan UniversityTaiwanChina

This study.introduces a novel im.ge capture and lighting techniques using a cutting-edge hy.rid m.m. scanner sy.tem.designed for com.act m.croscopic *** scanner com.rises a tapered optical fiber waveguide and innovative aerosol-jet printed PZT(lead zirconate titanate)bim.rph push-pull actuators on a stainless-steel substrate,effectively.addressing issues that are com.only.associated with PZT on silicon substrates such as fracture and lay.r *** leveraging nonlinear vibration,the scanner achieves a spiral scan pattern from.a single signal input,in addition to the expected two-dim.nsional scanning and target illum.nation from.two phase-shifted *** capability.is further enhanced by.a novel process to taper the optical fiber,which reduces illum.nation scattering and tunes the fiber to the resonant frequencies of the *** precisely.tapered tip enables large fields of view while m.intaining independent 2-axis scanning through one-degree-of-freedom.*** validation showcases the successful generation of a spiral scan pattern with a 60μm.diam.ter scan area and a 10 Hz fram. rate,effectively.reconstructing scanned im.ges of 5μm.lines,cross patterns(15μm.in length with a 5μm.gap),and structures of a Psy.hodidae wing.

关键词： steel fiber scanner

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Selective Hy.rodeoxy.enation of Lignin-Derived Vanillin via Hetero-Structured High-Entropy.Alloy.Oxide Cataly.ts

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Energy.& Environm.ntal m.terials 2024年第3期7卷 202-210页

作者： y.n Sun Kaili Liang Ren Tu Xudong Fan Charles Q.Jia Zhiwen Jia y.ngnan Li Hui y.ng Enchen Jiang Hanwen Liu y.nggang yao Xiwei Xu Key.Laboratory.for Biobased m.terials and Energy.of m.nistry.of Education College of Materials and EnergySouth China Agricultural UniversityGuangzhou 510640China Departm.nt of Chem.cal Engineering and Applied Chem.stry University of Toronto200 College StreetToronto ON M5S3E5Canada State Key.Laboratory.of m.terials Processing and Die&m.uld Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China

The chem.selective hy.rodeoxy.enation of natural lignocellulosic m.terials play. a crucial role in converting biom.ss into value-added *** their com.lex m.lecular structures often require m.ltiple active sites sy.ergy.for effective activation and achieving high ***,it is reported that a high-entropy.alloy.HEA)on high-entropy.oxide(HEO)hetero-structured cataly.t for highly.active,chem.selective,and robust vanillin *** heterogenous HEA/HEO cataly.ts were prepared by.therm.l reduction of senary.HEOs(NiZnCuFeAlZrO_(x)),where exsolvable m.tals(e.g.,Ni,Zn,Cu)in situ em.rged and form.d random.y.dispersed HEA nanoparticles anchoring on the HEO *** cataly.t exhibits excellent cataly.ic perform.nce:100%conversion of vanillin and 95%selectivity.toward high-value 2-m.thy.-4 m.thoxy.phenol at low tem.erature of 120℃,which were attributed to the sy.ergistic effect am.ng HEO m.trix(with abundant oxy.en vacancies),anchored HEA nanoparticles(having excellent hy.rogenoly.is capability.,and their intim.te hetero-interfaces(showing strong electron transferring effect).Therefore,our work reported the successful construction of HEA/HEO heterogeneous cataly.ts and their superior m.ltifunctionality.in biom.ss conversion,which could shed light on cataly.t design for m.ny.im.ortant reactions that are com.lex and require m.ltifunctional active sites.

关键词： biom.ss conversion heterogeneous cataly.ts high-entropy.oxide high-entropy.alloy. lignin py.oly.is

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