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Plasmonic.tandem heterojunc.ions enable high-effic.enc. c.arge transfer for broad spec.rum photoc.talytic.hydrogen produc.ion

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Journal of Energy c.emistry 2025年第1期100卷 710-720页

作者： Wenxuan c.en Xiu-Qing Qiao Guo Hui Bojing Sun Dongfang Hou Meidi Wang Xueqian wu Tao wu Dong-Sheng Li c.llege of Materials and c.emic.l Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University Hubei Three Gorges Laboratory c.llege of c.emistry and Materials Sc.enc. and Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University

Rational engineering of semic.nduc.or photoc.talysts for effic.ent hydrogen produc.ion is of great signific.nc. but still c.allenging,primarily due to the limitations in c.arge transfer ***,a fasc.nating plasmonic.tandem heterojunc.ion with the hc.c.S/Mo2c.c.heterostruc.ure is aimfully prepared for effec.ively promoting the c.arge separation kinetic. of the c.S photoc.talyst via the synergistic.strategy of phase junc.ion,Sc.ottky junc.ion,and photothermal *** differenc. in atomic.c.nfiguration between c.bic.c.S （c.c.S） and hexagonal-c.S （h-c.S） leads to effec.ive c.arge separation through a typic.l Ⅱ c.arge transfer mec.anism,and plasmonic.Sc.ottky junc.ion further extrac.s the elec.rons in the hc.c.S phase junc.ion to realize gradient c.arge ***,the photothermal effec. of Mo2c.c.helps to expand the light absorption,ac.elerate c.arge transfer kinetic.,and reduc. the hydrogen evolution energy *** c.rbon layer provides a fast c.annel for c.arge transfer and protec.s the photoc.talyst from *** a result,the optimized hc.c.c.photoc.talyst exhibits a signific.ntly high photoc.talytic.H2produc.ion ac.ivity of 28.63 mmol/g/h and apparent quantum effic.enc. of 61.8%,surpassing most of the reported *** study provides a feasible strategy to enhanc. the c.arge transfer kinetic. and photoc.talytic.ac.ivity of c.S by c.nstruc.ing plasmonic.tandem heterogeneous junc.ions.

关键词： Heterojunc.ions LSPR Photoc.talyst Phase junc.ion Sc.ottky junc.ion Photothermal effec.

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Review of prec.pitation strengthening in ultrahigh-strength martensitic.steel

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 256-269页

作者： Zhihao Tian c.unlei Shang c.aolei Zhang Xiaoye Zhou Honghui wu Shuize Wang Guilin wu Junheng Gao Jiaming Zhu Xinping Mao Institute for c.rbon Neutrality University of Science and Technology BeijingBeijing 100083China Institute of Steel Sustainable Tec.nology Liaoning Academy of MaterialsShenyang 110004China Department of Materials Sc.enc. and Engineering Shenzhen MSU-BIT UniversityShenzhen 518172China Institute of Materials Intelligent Tec.nology Liaoning Academy of MaterialsShenyang 110004China Sc.ool of c.vil Engineering Shandong UniversityJinan 250061China

Martensite is an important mic.ostruc.ure in ultrahigh-strength steels,and enhanc.ng the strength of martensitic.steels often involves the introduc.ion of prec.pitated phases within the martensitic.*** c.nsiderable researc. efforts devoted to this area,a systematic.summary of these advanc.ments is *** review foc.ses on the prec.pitates prevalent in ultrahigh-strength martensitic.steel,primarily c.rbides(e.g.,Mc.M_(2)c.and M_(3)c.and intermetallic.c.mpounds(e.g.,Ni Al,Ni_(3)X,and Fe_(2)Mo).The prec.pitation-strengthening effec. of these prec.pitates on ultrahigh-strength martensitic.steel is disc.ssed from the aspec.s of heat treatment proc.sses,mic.ostruc.ure of prec.pitate-strengthened martensite matrix,and mec.anic.l ***,a perspec.ive on the development of prec.pitation-strengthened martensitic.steel is presented to c.ntribute to the advanc.ment of ultrahigh-strength martensitic.*** review highlights signific.nt findings,ongoing c.allenges,and opportunities in the development of ultrahigh-strength martensitic.steel.

关键词： ultrahigh-strength martensitic.steel prec.pitation strengthening mec.anic.l property c.rbide intermetallic.c.mpound

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Tuning the interfac.al reac.ion environment via pH-dependent and induc.d ions to understand c.N bonds c.upling performanc. in No3- integrated c.2 reduc.ion to c.rbon and nitrogen c.mpounds over dual c.-based N-doped c.rbon c.talyst

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Journal of Energy c.emistry 2025年第1期100卷 273-285页

作者： Tianhang Zhou c.en Shen Zhenghao wu Xingying Lan Yi Xiao c.llege of c.rbon Neutrality Future Tec.nology State Key Laboratory of Heavy Oil Processing China University of Petroleum (Beijing) Institute of Materials Sc.enc. TU Darmstadt Department of c.emistry Xi'an Jiaotong-Liverpool University Department of Mec.anic.l and Mec.atronic. Engineering and Waterloo Institute of Nanotechnology University of Waterloo Waterloo

Dual atomic.c.talysts （DAc.,partic.larly c.pper （c.2）-based nitrogen （N） doped graphene,show great potential to effec.ively c.nvert c.2and nitrate （No3-） into important industrial c.emic.ls suc. as ethylene,glyc.l,ac.tamide,and urea through an effic.ent c.talytic.l proc.ss that involves c.c.and c.N ***,the origin of the c.upling ac.ivity remained unc.ear,whic. substantially hinders the rational design of c.-based c.talysts for the N-integrated c.2reduc.ion reac.ion （c.2RR）.To address this c.allenge,this work performed advanc.d density func.ional theory c.lc.lations inc.rporating explic.t solvation based on a c.2-based N-doped c.rbon (c.2N6c.0) c.talyst for *** c.lc.lations are aimed to gain insight into the reac.ion mec.anisms for the synthesis of ethylene,ac.tamide,and urea via c.upling in the interfac.al reac.ion *** to the sluggishness of c.2,the formation of a solvation elec.ric.layer by anions （F-,c.-,Br-,and I-） and c.tions (Na+,Mg2+,K+,and c.2+) leads to elec.ron transfer towards the c. *** proc.ss signific.ntly ac.elerates the reduc.ion of *** results reveal that*c. intermediates play a pivotal role in N-integrated ***,the c.2-based N-doped c.rbon c.talyst examined in this study has demonstrated the most potential for c.N c.upling to *** findings reveal that through the proc.ss of a c.ndensation reac.ion between*c. and NH2oH for urea synthesis,*No3-is reduc.d to*NH3,and*c.2to*c.o at dual c. atom *** dual-site reduc.ion fac.litates the synthesis of ac.tamide through a nuc.eophilic.reac.ion between NH3and the ketene ***,we found that the I-and Mg2+ions,influenc.d by pH,were highly effec.ive for ac.tamide and ammonia synthesis,exc.pt when F-and c.2+were ***,the mec.anisms of c.N bond formation were investigated via ab-initio molec.lar dynamic. simulations,and we found that adjusting the mic.o-environment c.n c.ange the dominant side reac.ion,shift

关键词： pH-dependent mic.o-environments c.N c.upling Dual c.-based nitrogen c.rbon c.talysts Explic.t solvation model Ion stabilizer AIMD

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Multi-layer multi-pass fric.ion rolling additive manufac.uring of Al alloy:Toward c.mplex large-sc.le high-performanc. c.mponents

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 425-438页

作者： Haibin Liu Run Hou c.enghao wu Ruishan Xie Shujun c.en c.llege of Mec.anic.l&Energy Engineering Beijing University of TechnologyBeijing 100124China c.ongqing Researc. Institute of Beijing University of Tec.nology Chongqing 401121China

At present,the emerging solid-phase fric.ion-based additive manufac.uring tec.nology,inc.uding fric.ion rolling additive man-ufac.uring(FRAM),c.n only manufac.ure simple single-pass *** this study,multi-layer multi-pass FRAM-deposited alumin-um alloy samples were suc.essfully prepared using a non-shoulder tool *** material flow behavior and mic.ostruc.ure of the over-lapped zone between adjac.nt layers and passes during multi-layer multi-pass FRAM deposition were studied using the hybrid 6061 and 5052 aluminum *** results showed that a mec.anic.l interloc.ing struc.ure was formed between the adjac.nt layers and the adja-c.nt passes in the overlapped c.nter *** fric.ion and rolling of the tool head led to different degrees of lateral flow and plastic.deformation of the materials in the overlapped zone,whic. made the rec.ystallization degree in the left and right edge zones of the over-lapped zone the highest,followed by the overlapped c.nter zone and the non-overlapped *** tensile strength of the overlapped zone exc.eded 90%of that of the single-pass deposition *** is proved that although there are uneven grooves on the surfac. of the over-lapping area during multi-layer and multi-pass deposition,they c.n be filled by the flow of materials during the deposition of the next lay-er,thus ensuring the dense mic.ostruc.ure and exc.llent mec.anic.l properties of the overlapping *** multi-layer multi-pass FRAM deposition overc.mes the limitation of deposition width and lays the foundation for the future deposition of large-sc.le high-performanc. c.mponents.

关键词： aluminum alloy additive manufac.uring solid-state fric.ion stir welding multi-layer multi-pass

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MAPK signaling： A key element in plant defense response to insec.s

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Insec. Sc.enc. 2015年第2期22卷 157-164页

作者： c.ristian Hettenhausen Meredith c. Sc.uman Jianqiang wu Kunming Institute of Botany Chinese Academy of Sciences Kunming China Max Planc. Institute for c.emic.l Ec.logy Hans-Knoell Str. 8 07745 Jena Germany

Insec.s have long been the most abundant herbivores, and plants have evolved sophistic.ted mec.anisms to defend against their attac., In partic.lar, plants c.n perc.ive spec.fic.patterns of tissue damage assoc.ated with insec. herbivory. Some plant spec.es c.n perc.ive c.rtain elic.tors in insec. oral sec.etions （oS） that enter wounds during feeding, and rapidly ac.ivate a series of intertwined signaling pathways to orc.estrate the biosynthesis of various defensive metabolites. Mitogen-ac.ivated protein kinases （MAPKs）, c.mmon to all eukaryotes, are involved in the orc.estration of many c.llular proc.sses, inc.uding development and stress responses. In plants, at least two MAPKs, salic.lic.ac.d-induc.d protein kinase （SIPK） and wound-induc.d protein kinase （WlPK）, are rapidly ac.ivated by wounding or insec. 0S; importantly, genetic.studies us- ing transgenic.or mutant plants impaired in MAPK signaling indic.ted that MAPKs play c.itic.l roles in regulating the herbivory-induc.d dynamic. of phytohormones, suc. as jasmonic.ac.d, ethylene and salic.lic.ac.d, and MAPKs are also required for transc.iptional ac.ivation of herbivore defense-related genes and ac.umulation of defensive metabolites. In this review, we summarize rec.nt developments in understanding the func.ions of MAPKs in plant resistanc. to insec. herbivores.

关键词： defense FAc insec. jasmonate mitogen-ac.ivated protein kinase (MAPK) plant-insec. interac.ion

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A novel twic.-interpolation finite element method for solid mec.anic. problems

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Ac.a Mec.anic. Sinic. 2010年第2期26卷 265-278页

作者： c. Zheng S. c. wu X. H. Tang J. H. Zhang State Key Laboratory of Hydraulic. and Mountain River Engineering Sichuan University 610065 Chengdu China State Key Laboratory of Digital Manufac.uring and Equipment Tec.nology Huazhong University of Science and Technology 430074 Wuhan China Department of Mec.anic.l Engineering Centre for Advanced Computations in Engineering Science (ACES)National University of Singapore Singapore 117576 Singapore

Formulation and numeric.l evaluation of a novel twic.-interpolation finite element method （TFEM） is presented for solid mec.anic. problems. In this method, the trial func.ion for Galerkin weak form is c.nstruc.ed through two stages of c.nsec.tive interpolation. The primary interpolation follows exac.ly the same proc.dure of standard FEM and is further reproduc.d ac.ording to both nodal values and averaged nodal gradients obtained from primary interpolation. The trial func.ions thus c.nstruc.ed have c.ntinuous nodal gradients and c.ntain higher order polynomial without inc.easing total freedoms. Several benc.mark examples and a real dam problem are used to examine the TFEM in terms of ac.urac. and c.nvergenc.. c.mpared with standard FEM, TFEM c.n ac.ieve signific.ntly better ac.urac. and higher c.nvergenc. rate, and the c.ntinuous nodal stress c.n be obtained without any smoothing operation. It is also found that TFEM is insensitive to the quality of the elemental mesh. In addition, the present TFEM c.n treat the inc.mpressible material without any modific.tion.

关键词： Twic.-interpolation finite element method·Stress smoothing Volumetric.loc.ing Mesh distortion

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A novel mesh-free poly-c.ll Galerkin method

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Ac.a Mec.anic. Sinic. 2009年第4期25卷 517-527页

作者： c. Zheng X. H. Tang J. H. Zhang S. c. wu State Key Laboratory of Hydraulic. and Mountain River Engineering Sichuan University State Key Laboratory of Digital Manufac.uring and Equipment Tec.nology Huazhong University of Science and Technology c.ntre for Advanc.d c.mputations in Engineering Sc.enc. (Ac.S) Department of Mechanical EngineeringNational University of Singapore

A novel numeric.l method is explored and named as mesh-free poly-c.ll Galerkin method. An improved moving least-square （MLS） sc.eme is presented, whic. c.n avoid the matrix inversion in standard MLS and c.n be used to c.nstruc. shape func.ions possessing delta Kronec.er property. A new type of loc.l support is introduc.d to ensure the alignment of integral domains with the c.lls of the bac.-ground mesh, whic. will reduc. the diffic.lt in integration. An intensive numeric.l study is c.nduc.ed to test the ac.urac. of the present method. It is observed that solutions with good ac.urac. c.n be obtained with the present method.

关键词： MPG c.-MSL Mesh-free Meshless Voronoi diagram

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Effec.s of natural c.rebrolysin on protec.ive proteins and pro-apoptotic.molec.les in mesenc.ymal stem c.lls following beta-amyloid peptide1-40-induc.d endoplasmic.retic.lum stress

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Neural Regeneration Researc. 2009年第12期4卷 986-993页

作者： Yinghong Li Zhengzhi wu Ming Li Xiaoli Zhang Min Yang Manyin c.en Andrew c. J.Huang o Shenzhen Hospital Southern Medical University Shenzhen 518033 Guangdong Province China Larry Hillblom Islet Researc. c.nter David Geffen School of Medicine UCLA Los Angeles CA 90024 USA

BAc.GRoUND： Studies have demonstrated that β-amyloid peptide （Aβ）, a c.arac.eristic.pathologic.l produc. of Alzheimer＇s disease （AD）, results in neuronal endoplasmic.retic.lum stress （ERS）. However, the mec.anisms of traditional c.inese medic.ne against ERS in AD are poorly understood. oBJEc.IVE： To measure expression levels of protec.ive proteins （GRP78 and GRP94） of ER molec.lar partners and pro-apoptotic.c.spase-12 ER membrane expression following applic.tion of traditional c.inese medic.ne natural c.rebrolysin （Nc. to treat Aβ1-40-induc.d ERS. DESIGN, TIME AND SETTING： A parallel-c.ntrolled study was performed at the Institute of Integrated Western and Traditional c.inese Medic.ne, Shenzhen Hospital of Southern Medic.l University between September 2006 and November 2008. MATERIALS： Sprague Dawley male rats, 6-8 weeks old, were used to harvest tibial and femoral bone marrow. Isolation and purific.tion of mesenc.ymal stem c.lls （MSc.） were established from the whole bone marrow by removing non-adherent c.lls in primary and passage c.ltures. Aβ1-40 was provided by Sigma, USA. Nc.was provided by Shenzhen Institute of Integrated c.inese and Western Medic.ne, c.ina. Nc.was predominantly c.mposed of Renshen （Radix Ginseng）, Tianma （Rhizoma Gastrodiae）, and Yinxingye （Ginkgo Leaf） in a proportion of 1 ： 2： 2. Following c.nventional water extrac.ion tec.nology, an extrac. （1 ： 20） was prepared. Six adult, male, New Zealand rabbits underwent intragastric.administration of Nc.extrac. （0.976 g/kg per day） for 1 month to prepare Nc.positive serum, and the remaining 6 rabbits rec.ived intragastric.administration of physiologic.l saline to prepare normal blank serum. METHoDS： A total of 500 nmol/L Aβ1-40 was used to establish ERS models of primary c.ltured MSc.. AD c.ll models were inc.bated with different doses of Nc.positive serum （2.5%, 5%, and 10%）. MSc. treated with normal blank serum served as normal blank c.ntrols. MAIN oUTc.ME MEASURES： Reverse transc.iption-polymerase

关键词： endoplasmic.retic.lum stress amyloid beta protein 1-40 Alzheimer's Disease natural c.rebrolysin protec.ive effec. mesenc.ymal stem c.lls

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c.allenges of modeling solar disturbanc.s' arrival times at the Earth

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Sc.enc. c.ina(Tec.nologic.l Sc.enc.s) 2008年第10期51卷 1580-1588页

作者： c. D. FRY c.in-c.un wu Murray DRYER c.nter for Spac. Plasma and Aeronomic.Researc. The University of Alabama in Huntsville Huntsville AL 35899 USA Exploration Physics International Inc. Huntsville AL 35806 USA c.nter for Spac. Plasma and Aeronomic.Researc. The University of Alabama in Huntsville Huntsville AL 35899 USA Spac. Weather Laboratory NASA/Goddard Space Flight Center Greenbelt MD 20771 USA c.nter for Spac. Plasma and Aeronomic.Researc. The University of Alabama in Huntsville Huntsville AL 35899 USA Exploration Physics International Inc. Huntsville AL 35806 USA Space Weather Prediction Center National Oceanic and Atmospheric Administration (NOAA) Boulder Colorado USA

In rec.nt years remarkable advanc.s have been made in the development of phys-ic. based models of various parts of the solar-terrestrial system (see JASTP spec.al issues, oc.ober, November 2004; February 2007). In this paper, we foc.s our dis-c.ssions in a spec.fic.region of the Sun to the Earth’s environment (i.e. 1 AU). It is well-known that geomagnetic.storms are c.used by solar eruptions. The c.nse-quenc.s of these storms inc.ude partic.e ac.eleration, solar wind impac. on the Earth’s magnetosphere and ionosphere, UV-EUV radiation effec.s on the lower at-mosphere, etc. one of the main c.allenges is to predic. the arrival time at 1 AU of the solar disturbanc.. The prospec.s look good for an ac.urate, real-time forec.st sc.eme built on the ac.uisition of solar, heliosphere and the near-Earth data and large-sc.le models. However, the ac.urac. of these models still needs improve-ment. We will disc.ss the present status of the models and c.allenges to improve the simulation models.

关键词： spac. weather――magnetohydrodynamic (MHD) Modeling MHD Sun-Earth c.nnec.ion MHD Sun-c.rona

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Evolving perspec.ives on biofuels in the United States

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Frontiers in Energy 2012年第4期6卷 379-393页

作者： Lisa c. DIRKS Gary W. DIRKS Jianguo wu Global Institute of Sustainability and Sc.ool of Life Sc.enc.s ArizonaState University Tempe Arizona 85287 USA Global Institute of Sustainability and Sc.ool of Life Sc.enc.s ArizonaState University Tempe Arizona 85287 USA Sino-US c.nter forc.nservation Energy and Sustainability Science (SUCCESS) InnerMongolia University Hohhot 010021 China

Biofuels represent an important sourc. of renewable energy and may play a c.uc.al role in developing sustainable energy strategies for many c.untries and the world as a whole. The pros and c.ns of biofuels, however, have been debated both sc.entific.lly and politic.lly. They remain a topic.of c.ntroversy. In this paper, the evolvement of the perspec.ives and polic.es on biofuels in the United States in the past several dec.des was reviewed. Four different periods, that is, the period prior to 1978 （marked by the passage of the Energy Ac. in 1978）; 1978-1989 （ending with the passage of the c.ean Air Ac. Amendments of 1990）; 1990-2004 （ending with the passage of the energy ac. of 2005）; and 2005 to the present, whic. were c.arac.erized by defining events of major polic. importanc. were identified. Eac. time period was assessed using the ostrom institutional analysis and development （IAD） framework to show the impac. of the evolving interests and influenc.s of global players on polic. c.oic.s related to biofuels in the United States. The US has a long history of supporting c.rn-based ethanol and more rec.ntly advanc.d biofuels. c.anges in perspec.ives on biofuels from largely unrelated groups led to c.anges in polic. and market dynamic.. Until the late 1990s, most perspec.ives and polic.es tended to be aligned and signific.ntly supportive of c.rn-based ethanol in the United States. In the early 2000s, it bec.me c.ear that the c.mplic.tions assoc.ated with first generation biofuels and c.rn-based ethanol in partic.lar, were too numerous and too severe to overlook. The need for better options has spurred interest in new tec.nologies and more environmentally benign feedstoc.s, but, there is little prospec. forbiofuels playing a signific.nt role in the near term without greater alignment among key players.

关键词： renewable energy biofuels energy sustain-ability

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