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| 1 | Enhancing both selectivity and coking-resistance of a single-atom Pd1/C3N4 catalyst for acetylene hydrogenation显示文摘选择加氢是在化学升级的一个重要工业催化过程,在因为他们的高加氢活动,基于 Pd 的催化剂广泛地被使用的地方。然而,因为重焦炭形成,差的选择和短催化剂一生是主要担心。在这个工作,原子地驱散 Pd 原子成功地在 graphitic 碳氮化物上被综合(g-C 3 用原子层免职的 N 4) 。没有 Pd nanoparticle (NP ) ,改正错误的高角度的环形的黑暗地的扫描传播电子显微镜学(HAADF 茎) 证实了孤立的 Pd 原子的主导的存在形成。在在过量乙烯的乙炔的选择加氢期间, g-C 3 N 4-supported Pd NP 催化剂比常规 Pd/Al 2 O 3 和 Pd/SiO 2 催化剂。在原处, X 光检查光致核裂变光谱学表明可观的费用从 Pd NP 转到 g-C 3 N 4 多半在催化表演改进起一个重要作用。更给人深刻印象地,单个原子的 Pd 1/C3 N 4 催化剂展出了两种更高的乙烯选择和更高的 coking 抵抗。我们的工作证明单个原子的 Pd 催化剂是在加氢反应改进选择和焦炭抵抗的一个有希望的候选人。 | Xiaohui Huang Yujia Xia Yuanjie Cao Xusheng Zheng Haibin Pan Junfa Zhu Chao Ma Hengwei Wang Junjie Li Rui You Shiqiang Wei Weixin Huang Junling Lu | 2017 | Nano Research2017，10，4： | 16 |
| 2 | Insight of the stability and activity of platinum single atoms on ceria显示文摘Single-atom catalysts (SACs) have recently attracted broad attention in the catalysis field due to their maximized atom efficiency and unique catalytic properties.An atomic-level understanding of the interaction between the metal atoms and support is vital for developing stable and high-performance SACs.In this work,Pt1 single atoms with Ioadings up to 4 wt.% were fabricated on ceria nanorods using the atomic layer deposition technique.To understand the Pt-O-Ce bond interfacial interactions,the stability of Pt1 single atoms in the hydrogen reducing environment was extensively investigated by using in situ diffuse reflectance infrared Fourier transform spectroscopy CO chemisorption measurements.It was found that ceria defect sites,metal Ioadings and high-temperature calcination are effective ways to tune the stability of Pt1 single atoms in the hydrogen environment.X-ray photoemission spectroscopy further showed that Pt1 single atoms on ceria are dominantly at a +2 valence state at the defect and step edge sites,while those on terrace sites are at a +4 state.The above tailored stability and electronic properties of Pt1 single atoms are found to be strongly correlated with the catalytic activity in the dry and water-mediated CO oxidation reactions. | Xuxu Ye Hengwei Wang Yue Lin Xinyu Liu Lina Cao Jian Gu Junling Lu | 2019 | Nano Research2019，12，6： | 13 |
| 3 | Additive manufacturing of high-strength CrMnFeCoNi high-entropy alloys-based composites with WC addition显示文摘Laser melting deposition with WC addition has been developed to fabricate high-strength CrMnFeCoNibased high-entropy alloys-based composites.By this technique,a microstructure of compact refined equiaxed grains can be achieved,and the tensile strength can be remarkably improved.The sample with 5 wt%WC addition shows a promising mechanical performance with a tensile strength of 800 MPa and an elongation of 37%.The improvement in mechanical property may be attributed to the formation of Cr(23)C6 reinforcement precipitates,which could promote the heterogeneous nucleation of grains and hinder the propagation of slip bands. | Jinfeng Li Shuo Xiang Hengwei Luan Abdukadir Amar Xue Liu Siyuan Lu Yangyang Zeng Guomin Le Xiaoying Wang Fengsheng Qu Chunli Jiang Guannan Yang | 2019 | Journal of Materials Science & Technology2019，35，11： | 13 |
| 4 | A new type of dehydration unit of natural gas and its design considerations显示文摘A new type of dehydration unit for natural gas is described and its basic structure and working principles are presented.The key factors affecting the performance and dehydration efficiency of the unit such as nucleation rate, droplet growth rate, the strength of the swirl, and the position at which the shock wave occurs are discussed. And accordingly the design considerations of each component of the unit are provided. Experimental investigations on the working performance of the unit justified the design considerations. | LIU Hengwei LIU Zhongliang ZHANG Jian GU Keyu YAN Tingmin | 2005 | Progress in Natural Science:Materials International2005，15，12： | 7 |
| 5 | A Review on Particle Size Effect in Metal-Catalyzed Heterogeneous Reactions显示文摘Size of metal nanoparticles(NPs)plays decisive roles in metal-catalyzed heterogeneous reactions,due to the drastic variation of the geometric and electronic properties of metal NPs with size.Along with the development of controlled catalyst synthesis,tremendous efforts have been devoted to understanding the nature of the particle size effect.In particular,identification of the individual roles of size-dependent geometric and electronic effects on metal-catalyzed reactions is essential,but remains challenging since they are tightly hybridized together with particle size variation.In this review,w e first discuss the fundamentals of the size-dependent geometric and electronic properties of metal NPs and their crucial roles in catalysis in general.Then we summarize the previous representative studies of the particle size effect,metal-by-metal,in heterogeneous catalysis.We highlighted the extension of particle size effect to ultrafine cluster and single-atom catalysts,the new frontiers in heterogeneous catalysis.In the followings,we further introduce the recent advances in disentangling the size-dependent geometric and electronic effects and unveiling their individual contributions to catalysis.Finally,we discuss the challenges and perspectives of investigations on the size effect in metal catalysis for the future studies. | Hengwei Wang Junling Lu | 2020 | Chinese Journal of Chemistry2020，38，11： | 5 |
| 6 | EXTENSION OF COMBINED SELF-CONSISTENT AND MORI-TANAKA APPROACH TO EVALUATION OF ELASTOPLASTIC PROPERTY OF PARTICULATE COMPOSITES显示文摘The combined self-consistent and Mori-Tanaka approach proposed for the evaluation of the effective elastic property of particulate composites is extended to evaluate the effective elastoplastic property of particulate composites.Suppose there are sufficient identical particle inclusions with total volume fraction c in a representative volume element(RVE)of a particulate composite,these inclusions are separated into two groups,with volume fractions(1-λ-1)c and c/λ over the RVE,respectively.We assume that the first group of inclusions has already been embedded in the original matrix to form a fictitious matrix,and the RVE of the composite consists of the fictitious matrix and the second group of particle inclusions.The property of the fictitious matrix is determined by the conventional self-consistent scheme,while the effective elastoplastic property of the composite is determined by the conventional Mori-Tanaka scheme.Analysis shows that,the conventional Mori-Tanaka scheme and self-consistent scheme can be obtained as the two limit cases of the extended approach as λ = 1 and λ = ∞,respectively.The constitutive behavior of the inclusions in either Group I or Group II is identical,indicating the consistency in the description of the constitutive behavior in the two steps.Furthermore,the effective elastoplastic behavior of some typical particulate composites is analyzed,and the satisfactory agreement between the computational and experimental results demonstrates the validity of the extended approach.The introduced λ can serve reasonably as a parameter,which is related to the actual property of composites and can be identified by experiments,for a more accurate evaluation of the effective elastoplastic property of particulate composites. | Xianghe Peng Ning Hu Xuesong Long Hengwei Zheng | 2013 | Acta Mechanica Solida Sinica2013，26，1： | 5 |
| 7 | In Situ Synthesis of Fluorescent Mesoporous Silica–Carbon Dot Nanohybrids Featuring Folate Receptor-Overexpressing Cancer Cell Targeting and Drug Delivery显示文摘Multifunctional nanocarrier-based theranostics is supposed to overcome some key problems in cancer treatment.In this work,a novel method for the preparation of a fluorescent mesoporous silica–carbon dot nanohybrid was developed.Carbon dots(CDs),from folic acid as the raw material,were prepared in situ and anchored on the surface of amino-modified mesoporous silica nanoparticles(MSNs–NH2) via a microwave-assisted solvothermal reaction.The as-prepared nanohybrid(designated MSNs–CDs) not only exhibited strong and stable yellow emission but also preserved the unique features of MSNs(e.g.,mesoporous structure,large specific surface area,and good biocompatibility),demonstrating a potential capability for fluorescence imagingguided drug delivery.More interestingly,the MSNs–CDs nanohybrid was able to selectively target folate receptor-overexpressing cancer cells(e.g.,HeLa),indicating that folic acid still retained its function even after undergoing the solvothermal reaction.Benefited by these excellent properties,the fluorescent MSNs–CDs nanohybrid can be employed as a fluorescence-guided nanocarrier for the targeted deliveryof anticancer drugs(e.g.,doxorubicin),thereby enhancing chemotherapeutic efficacy and reducing side effects.Our studies may provide a facile strategy for the fabrication of multifunctional MSN-based theranostic platforms,which is beneficial in the diagnosis and therapy of cancers in future. | Shuai Zhao Shan Sun Kai Jiang Yuhui Wang Yu Liu Song Wu Zhongjun Li Qinghai Shu Hengwei Lin | 2019 | Nano-Micro Letters2019，11，2： | 5 |
| 8 | Influences of friction drag on spontaneous condensation in water vapor supersonic flows显示文摘A mathematical model was developed to investigate the water vapor spontaneous condensation under supersonic flow conditions. A numerical simulation was performed for the water vapor condensable supersonic flows through Laval nozzles under different flow friction conditions. The comparison between numerical and experimental results shows that the model is accurate enough to investigate the supersonic spontaneous condensation flow of water vapor inside Laval nozzles. The influences of flow friction drag on supersonic spontaneous condensation flow of water vapor inside Laval nozzles were investigated. It was found that the flow friction has a direct effect on the spontaneous condensation process and therefore it is important for an accurate friction prediction in designing this kind of Laval nozzles. | JIANG WenMing LIU ZhongLiang LIU HengWei PANG HuiZhong BAO LingLing | 2009 | Science China(Technological Sciences)2009，52，9： | 4 |
| 9 | Green and Near-Infrared Dual-Mode Afterglow of Carbon Dots and Their Applications for Confidential Information Readout显示文摘Near-infrared(NIR),particularly NIR-containing dual-/multimode afterglow,is very attractive in many fields of application,but it is still a great challenge to achieve such property of materials. Herein,we report a facile method to prepare green and NIR dual-mode afterglow of carbon dots(CDs) through in situ embedding o-CDs(being prepared from o-phenylenediamine) into cyanuric acid(CA) matrix(named o-CDs@CA). Further studies reveal that the green and NIR afterglows of o-CDs@CA originate from thermal activated delayed fluorescence(TADF) and room temperature phosphorescence(RTP) of o-CDs,respectively. In addition,the formation of covalent bonds between o-CDs and CA,and the presence of multiple fixation and rigid e ects to the triplet states of o-CDs are confirmed to be critical for activating the observed dual-mode afterglow. Due to the shorter lifetime and insensitiveness to human vision of the NIR RTP of o-CDs@CA,it is completely covered by the green TADF during directly observing. The NIR RTP signal,however,can be readily captured if an optical filter(cut-o wavelength of 600 nm) being used. By utilizing these unique features,the applications of o-CDs@CA in anti-counterfeiting and information encryption have been demonstrated with great confidentiality. Finally,the as-developed method was confirmed to be applicable to many other kinds of CDs for achieving or enhancing their afterglow performances. | Yuci Wang Kai Jiang Jiaren Du Licheng Zheng Yike Li Zhongjun Li Hengwei Lin | 2021 | Nano-Micro Letters2021，13，12： | 4 |
| 10 | Enabling robust and hour-level organic long persistent luminescence from carbon dots by covalent fixation显示文摘The first carbon dot(CD)-based organic long persistent luminescence(OLPL)system exhibiting more than 1 h of duration was developed.In contrast to the established OLPL systems,herein,the reported CDs-based system(named m-CDs@CA)can be facilely and effectively fabricated using a household microwave oven,and more impressively,its LPL can be observed under ambient conditions and even in aqueous media.XRD and TEM characterizations,afterglow decay,time-resolved spectroscopy,and ESR analysis were performed,showing the successful composition of CDs and.CA,the formation of exciplexes and long-lived charged-separated states.Further studies suggest that the production of covalent bonds between CA and CDs plays pivotal roles in activating LPL and preventing its quenching from oxygen and water.To the best of our knowledge,this is a very rare example of an OLPL system that exhibits hourlevel afterglow under ambient conditions.Finally,applications of m-CDs@C.A in glow-in-the-dark paints for emergency signs and multicolored luminous pearls were preliminarily demonstrated.This work may provide new insights for the development of rare earth-free and robust OLPL materials. | Kai Jiang Yuci Wang Cunjian Lin Licheng Zheng Jiaren Du Yixi Zhuang Rongjun Xie Zhongjun Li Hengwei Lin | 2022 | Light(Science & Applications)2022，11，4： | 3 |
| 11 | 微生物-肠-脑轴调控蛋鸡应激性异常行为的研究进展显示文摘现代养禽业采用的高密度笼养体系、分阶段饲养、断喙等管理措施可引起禽的过度应激,使它们出现啄羽、攻击或同类相食等异常行为。肠道菌群被视为一种跨物种的虚拟内分泌器官,通过肠-脑轴的双向通讯整合来自代谢、免疫、内分泌和神经通路发出的信号,并通过肠神经和迷走神经等外周神经系统、5-羟色胺和短链脂肪酸等微生物代谢产物以及免疫系统等途径调控动物应激反应及相应异常行为。本文系统地总结了蛋鸡饲养管理措施所造成的禽过度应激行为,并对微生物-肠-脑轴对鸡应激及其相关行为调控的可能机制进行论述,旨在为益生菌在蛋鸡饲养管理的推广应用提供参考依据。 | 邹昕羽 CHENG Hengwei 金美兰 江莎 | 2021 | 动物营养学报2021，33，4： | 3 |
| 12 | Dual recombinases-based genetic lineage tracing for stem cell research with enhanced precision显示文摘Stem cell research has become a hot topic in biology,as the understanding of stem cell biology can provide new insights for both regenerative medicine and clinical treatment of diseases.Accurately deciphering the fate of stem cells is the basis for understanding the mechanism and function of stem cells during tissue repair and regeneration.Cre-loxP-mediated recombination has been widely applied in fate mapping of stem cells for many years.However,nonspecific labeling by conventional cell lineage tracing strategies has led to discrepancies or even controversies in multiple fields.Recently,dual recombinase-mediated lineage tracing strategies have been developed to improve both the resolution and precision of stem cell fate mapping.These new genetic strategies also expand the application of lineage tracing in studying cell origin and fate.Here,we review cell lineage tracing methods,especially dual genetic approaches,and then provide examples to describe how they are used to study stem cell fate plasticity and function in vivo. | Hengwei Jin Kuo Liu Bin Zhou | 2021 | Science China(Life Sciences)2021，64，12： | 3 |
| 13 | Optimal Active Defence Using Dynamic Multi-Stage Signalling Game显示文摘Nowadays, security defence of network uses the game theory, which mostly applies complete information game model or even the static game model. To get closer to the actual network and defend actively, we propose a network attack-defence game model by using signalling game, which is modelled in the way of dynamic and incomplete information. We improve the traditional attack-defence strategies quantization method to meet the needs of the network signalling game model. Moreover, we give the calculation of the game equilibrium and analyse the optimal defence scheme. Finally, we analyse and verify effectiveness of the model and method through a simulation experiment. | ZHANG Hengwei LI Tao WANG Jindong HAN Jihong | 2015 | China Communications2015，12，S2： | 2 |
| 14 | Spatiotemporal Mapping of Salt Marshes in the Intertidal Zone of China during 1985-2019显示文摘This study mapped the areal extent,identified the species composition,and analyzed the changes of salt marshes in the intertidal zone of China during the period 1985–2019.With the aid of the cloud platform of the Google Earth Engine,we selected Landsat 5/8 and Sentinel-2 images and used the support vector machine classification method to extract salt marsh information for the years of 1985,1990,1995,2000,2005,2010,2015,and 2019.Seven major species of salt marshes:Phragmites australis,Suaeda spp.,Spartina alterniflora,Scirpus mariqueter,Tamarix chinensis,Cyperus malaccensis,and Sesuvium portulacastrum were identified.Our results showed that salt marshes are mainly distributed in Liaoning,Shandong,Jiangsu,Shanghai,and Zhejiang,with varying patterns of shrinking,expansion,or wavering in different places.The distribution of salt marshes has declined considerably from 151,324 ha in 1985 to 115,397 ha in 2019,a drop of 23.7%.During the same period,the area of native species has dropped 95.4%from 77,741 ha to 3,563 ha for Suaeda spp.and 45.1%from 60,511 ha to 33,193 ha for P.australis;on the contrary,the area of exotic species,S.alterniflora,has exhibited a sharp rise from just 99 ha to 67,527 ha.For the past 35 years,the driving factors causing salt marsh changes are mainly land reclamation,variations in water and sand fluxes,and interspecific competition and succession of salt marsh vegetation.These results provide fundamental reference information and could form the scientific basis for formulating policies for the conservation and utilization of salt marsh resources in China. | Guangwei Chen Runjie Jin Zhanjiang Ye Qi Li Jiali Gu Min Luo Yongming Luo George Christakos James Morris Junyu He Dan Li Hengwei Wang Li Song Qiuxuan Wang Jiaping Wu | 2022 | Journal of Remote Sensing2022，，1： | 2 |
| 15 | Research progress on electrolytes for fast-charging lithium-ion batteries显示文摘Fast-charging is considered to be a key factor in the successful expansion and use of electric vehicles.Current lithium-ion batteries(LIBs)exhibit high energy density,enabling them to be used in electric vehicles(EVs)over long distances,but they take too long to charge.In addition to modifying the electrode and battery structure,the composition of the electrolyte also affects the fast-charging capability of LIBs.This review provides a comprehensive and in-depth overview of the research progress,basic mechanism,scientific challenges and design strategies of the new fast-charging solution system,focusing on the influences that the compositions of liquid and solid electrolytes have on the fast-charging performance of LIBs.Finally,new insights,promising directions and potential solutions for the electrolytes of fast-charging systems are proposed to stimulate further research on revolutionary next-generation fastcharging LIB chemistry. | Dan Zhang Le Li Weizhuo Zhang Minghui Cao Hengwei Qiu Xiaohui Ji | 2023 | Chinese Chemical Letters2023，34，1： | 2 |
| 16 | Surface tension and density in the KF-NaF-AlF3-based electrolyte显示文摘 | Yan Hengwei Yang Jianhong Li Wangxing | | 0，，： | 1 |
| 17 | Catalyzing strategic transformation to a low-carbon economy: A CCS roadmap for China 显示文摘 | Hengwei Lin Kelly Sims Gallagher | 2010 | Energy Policy2010，，38： | 1 |
| 18 | Driving Carbon Capture and Storage forward in China 显示文摘 | HENGWEI LIU KELLY SIMS GALLAGHER | 2009 | Energy Procedia2009，1，： | 1 |
| 19 | Driving Carbon Capture and Storage forward in China 显示文摘 | Hengwei Liu Kelly Sims Gallagher | 2009 | Energy Procedia2009，1，： | 1 |
| 20 | Risk factors of HIV infectionand prevalence of co-infections among men who have sex with men in Beijing China显示文摘 | Zhang X Wang C Hengwei W | 2007 | AIDS2007，21，8： | 1 |
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