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| 1 | Three-dimensional artificial transpiration for efficient solar waste-water treatment显示文摘Solar steam generation is emerging as promising solar-energy conversion technology for potential applications in desalination, sterilization and chemical purification. Despite the recent use of photon management and thermal insulation, achieving optimum solar steam efficiency requires simultaneous minimization of radiation, convection and conduction losses without compromising light absorption.Inspired by the natural transpiration process in plants, here we report a 3 D artificial transpiration device with all three components of heat loss and angular dependence of light absorption minimized, which enables over 85% solar steam efficiency under one sun without external optical or thermal management. It is also demonstrated that this artificial transpiration device can provide a complementary path for waste-water treatment with a minimal carbon footprint, recycling valuable heavy metals and producing purified water directly from waste water contaminated with heavy metal ions. | Xiuqiang Li Renxing Lin George Ni Ning Xu Xiaozhen Hu Bin Zhu Guangxin Lv Jinlei Li Shining Zhu Jia Zhu | 2018 | National Science Review2018，5，1： | 27 |
| 2 | The revival of thermal utilization from the Sun: interfacial solar vapor generation显示文摘Since solar energy is the ultimate energy resource and a significant amount of global energy utilization goes through heat,there have been persistent efforts for centuries to develop devices and systems for solar–thermal conversion.Most recently,interfacial solar vapor generation,as an emerging concept of solar–thermal conversion,has gained significant attention for its great potentials in various fields such as desalination,sterilization,catalysis,etc.With the advances of rationally designed materials and structures and photon and thermal management at the nanoscale,interfacial solar vapor generation has demonstrated both thermodynamic and kinetical advantages over conventional strategies.In this review,we aim to illustrate the definition,mechanism and figures of merit of interfacial solar vapor generation,and to summarize the development progress of relevant materials and applications,as well as to provide a prospective view of the future. | Lin Zhou Xiuqiang Li George W. Ni Shining Zhu Jia Zhu | 2019 | National Science Review2019，6，3： | 22 |
| 3 | Overview of China’s 2020 Mars mission design and navigation显示文摘Scheduled for an Earth-to-Mars launch opportunity in 2020,the China’s Mars probe will arrive on Mars in 2021 with the primary objective of injecting an orbiter and placing a lander and a rover on the surface of the Red Planet.For China’s 2020 Mars exploration mission to achieve success,many key technologies must be realized.In this paper,China’s 2020 Mars mission and the spacecraft architecture are first introduced.Then,the preliminary launch opportunity,Earth–Mars transfer,Mars capture,and mission orbits are described.Finally,the main navigation schemes are summarized. | Xiuqiang Jiang Bin Yang Shuang Li | 2018 | Astrodynamics2018，2，1： | 17 |
| 4 | Analysis of RDSS positioning accuracy based on RNSS wide area differential technique显示文摘The BeiDou Navigation Satellite System(BDS) provides Radio Navigation Service System(RNSS) as well as Radio Determination Service System(RDSS).RDSS users can obtain positioning by responding the Master Control Center(MCC) inquiries to signal transmitted via GEO satellite transponder.The positioning result can be calculated with elevation constraint by MCC.The primary error sources affecting the RDSS positioning accuracy are the RDSS signal transceiver delay,atmospheric trans-mission delay and GEO satellite position error.During GEO orbit maneuver,poor orbit forecast accuracy significantly impacts RDSS services.A real-time 3-D orbital correction method based on wide-area differential technique is raised to correct the orbital error.Results from the observation shows that the method can successfully improve positioning precision during orbital maneuver,independent from the RDSS reference station.This improvement can reach 50% in maximum.Accurate calibration of the RDSS signal transceiver delay precision and digital elevation map may have a critical role in high precise RDSS positioning services. | XING Nan SU RanRan ZHOU JianHua HU XiaoGong GONG XiuQiang LIU Li HE Feng GUO Rui REN Hui HU GuangMing ZHANG Lei | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，10： | 6 |
| 5 | Applications of two-way satellite time and frequency transfer in the BeiDou navigation satellite system显示文摘A two-way satellite time and frequency transfer(TWSTFT) device equipped in the BeiDou navigation satellite system(BDS)can calculate clock error between satellite and ground master clock. TWSTFT is a real-time method with high accuracy because most system errors such as orbital error, station position error, and tropospheric and ionospheric delay error can be eliminated by calculating the two-way pseudorange difference. Another method, the multi-satellite precision orbit determination(MPOD)method, can be applied to estimate satellite clock errors. By comparison with MPOD clock estimations, this paper discusses the applications of the BDS TWSTFT clock observations in satellite clock measurement, satellite clock prediction, navigation system time monitor, and satellite clock performance assessment in orbit. The results show that with TWSTFT clock observations, the accuracy of satellite clock prediction is higher than MPOD. Five continuous weeks of comparisons with three international GNSS Service(IGS) analysis centers(ACs) show that the reference time difference between BeiDou time(BDT) and golbal positoning system(GPS) time(GPST) realized IGS ACs is in the tens of nanoseconds. Applying the TWSTFT clock error observations may obtain more accurate satellite clock performance evaluation in the 104 s interval because the accuracy of the MPOD clock estimation is not sufficiently high. By comparing the BDS and GPS satellite clock performance, we found that the BDS clock stability at the 103 s interval is approximately 10.12, which is similar to the GPS IIR. | ShanShi Zhou XiaoGong Hu Li Liu Rui Guo LingFeng Zhu ZhiQiao Chang ChengPan Tang XiuQiang Gong Ran Li Yang Yu | 2016 | Science China(Physics,Mechanics & Astronomy)2016，59，10： | 6 |
| 6 | Recent advances in the synthesis of 1,1-diarylalkanes by transitionmetal catalysis显示文摘1,1-Diaryl moieties are core structures in a wide range of bioactive and pharmaceutical compounds.Transition-metal catalysis is a convenient approach to accessing these invaluable compounds affording high yields and enantioselectivities.This review summarizes 1,1-diarylalkanes synthesis through transition metal catalysis.Particular focus is given to recent developments,such as reductive cross-electrophile couplings,benzylic C–H bond arylation,transformations involving metal migration,asymmetric hydrogenation of 1,1-diarylalkenes and three-component coupling reactions. | Md.Belal Zheqi Li Xiuqiang Lu Guoyin Yin | 2021 | Science China Chemistry2021，64，4： | 1 |
| 7 | Room-Temperature Assembled MXene-Based Aerogels for High Mass-Loading Sodium-Ion Storage显示文摘Low-temperature assembly of MXene nanosheets into three-dimensional(3D) robust aerogels addresses the crucial stability concern of the nano-building blocks during the fabrication process,which is of key importance for transforming the fascinating properties at the nanoscale into the macroscopic scale for practical applications.Herein,suitable cross-linking agents(amino-propyltriethoxysilane,Mn^(2+),Fe^(2+),Zn^(2+),and Co^(2+)) as interfacial mediators to engineer the interlayer interactions are reported to realize the graphene oxide(GO)-assisted assembly of Ti_(3)C_(2)T_(x) MXene aerogel at room temperature.This elaborate aerogel construction not only suppresses the oxidation degradation of Ti_(3)C_(2)T_(x) but also generates porous aerogels with a high Ti_(3)C_(2)T_(x) content(87 wt%) and robustness,thereby guaranteeing the functional accessibility of Ti_(3)C_(2)T_(x) nanosheets and operational reliability as integrated functional materials.In combination with a further sulfur modification,the Ti_(3)C_(2)T_(x) aerogel electrode shows promising electrochemical performances as the freestanding anode for sodium-ion storage.Even at an ultrahigh loading mass of 12.3 mg cm^(-2),a pronounced areal capacity of 1.26 mAh cm^(-2) at a current density of 0.1 A g^(-1) has been achieved,which is of practical significance.This work conceptually suggests a new way to exert the utmost surface functionalities of MXenes in 3D monolithic form and can be an inspiring scaffold to promote the application of MXenes in different areas. | Fei Song Jian Hu Guohao Li Jie Wang Shuijiao Chen Xiuqiang Xie Zhenjun Wu Nan Zhang | 2022 | Nano-Micro Letters2022，14，2： | 1 |
| 8 | A scalable fish-school inspired self-assembled particle system for solar-powered water-solute separation显示文摘Complete separation of water and solute is the ultimate goal of water treatment,for maximized resource recycling.However,commercialized approaches such as evaporative crystallizers consume a large amount of electricity with a significant carbon footprint,leading to calls for alternative energy-efficient and eco-friendly strategies.Here,inspired by schooling fish,we demonstrate a collective system self-assembled by expanded polystyrene(EPS)-core/graphene oxide(GO)-shell particles,which enables autonomous,efficient and complete water-solute separation powered by sunlight.By taking advantage of surface tension,these tailored particles school together naturally and are bonded as a system to function collectively and coordinatively,to nucleate,grow and output salt crystals continuously and automatically out of even saturated brine,to complete water-solute separation.Solar-vapor conversion efficiency over 90%and salt production rate as high as 0.39 kg m^(-2) h^(-1) are achieved under 1-sun illumination for this system.It reduces the carbon footprint of~50 kg for treating 1-ton saturated brine compared with the commercialized approaches. | Ning Xu Haoran Zhang Zhenhui Lin Jinlei Li Guoliang Liu Xiuqiang Li Wei Zhao Xinzhe Min Pengcheng Yao Lin Zhou Yan Song Bin Zhu Shining Zhu Jia Zhu | 2021 | National Science Review2021，8，10： | 1 |
| 9 | Effects of Polygonatum odoratum Polysaccharides on the Quality of White Chili Peppers in Jars显示文摘[Objectives]This study was conducted to investigate the effects of Polygonatum odoratum polysaccharides on the quality of white chili peppers in jars.[Methods]White chili peppers were pickled by adding different concentrations of P.odoratum polysaccharides with traditional pickling technology,and its nitrite content,pH and sensory quality were analyzed and detected.[Results]The results showed that,compared with the control group without adding P.odoratum polysaccharides,the nitrite content in white chili peppers in jars decreased after adding P.odoratum polysaccharides.When the addition amount of P.odoratum polysaccharides was 0.002%,the inhibition rate of nitrite reached the maximum.Under the same fermentation time,P.odoratum polysaccharides could significantly reduce the pH value of pickles.When the addition amount of P.odoratum polysaccharide was 0.002%and the pickling time was 3 months,the sensory quality of white chili peppers in jars was the best.At this point,white chili peppers in jars had rich aroma and tasted soft and sour,and the sour and salinity were suitable.As the fermentation time continued to increase,the chili aroma of white chili peppers in jars gradually decreased,and the sour taste became more pronounced.[Conclusions]This study can provide reference for the safety and quality control of white chili peppers in jars. | Xiuqiang WANG Li ZHOU Chenzhong JIN Yihong HU Jing QIU Yunyun ZHOU Yan WANG | 2023 | Agricultural Biotechnology2023，12，4： | 0 |
| 10 | Privacy Preserving Algorithm for Spectrum Sensing in Cognitive Vehicle Networks显示文摘The scarcity of spectrum resources fails to meet the increasing throughput demands of vehicular networks.There is an urgent need to maximize the utilization of spectrum bands in mobile networks.To ascertain the availability of spectrum bands,users should engage in wireless channel sensing and collaboration.However,spectrum sensing data always involves users’privacy,such as their location.This paper first introduces sensing trajectory inference attack in cognitive vehicular networks and then proposes a data confusion-based privacy-preserving algorithm and a cryptonym array-based privacy-preserving aggregation scheme for spectrum sensing in cognitive vehicular networks.Unlike existing methods,the proposed schemes transmit confused data during the aggregation process.This deliberate obfuscation makes it almost impossible to infer users’location from the transmitted data.The analysis demonstrates the resilience of the proposed schemes against sensing trajectory inference attack. | Hongning LI Tonghui HU Jiexiong CHEN Xiuqiang WU Qingqi PEI | 2024 | Chinese Journal of Electronics2024，33，1： | 0 |
| 11 | Surface chemistry engineering and the applications of MXenes显示文摘MXenes have captured extensive attention in various fields by virtue of unique hydrophilicity,high conductivity and tunable surface terminations.In this review,the state-of-the-art progresses of designing functional MXenes have been summarized.Firstly,the synthesis methods of MXenes are summarized and classified into HF etching,in-situ HF etching and fluoride-free etching approaches based on the effect on the surface chemistry of MXenes.Secondly,the factors that affect the surface termination groups are discussed,including synthesis methods,heat treatment temperature and atmosphere.Thirdly,this review gives an overview of the synthetic routes of functional MXenes including termination modification by synthesis methods and heat treatment,heteroatom(N,S,or P)doping,cation and organic molecule intercalation and hybridization with polymer,which inhibit restacking and increase active sites for intrinsically enhancing the inherent physical and chemical properties of MXenes.Finally,the applications with respect to energy storage and conversion,catalysis,sensors,electromagnetic interference shielding and microwave absorption of functional MXenes are introduced.Additionally,the critical challenges and development prospects of functional MXenes are also highlighted. | Guohao Li Shuhan Lian Jie Wang Guanshun Xie Nan Zhang Xiuqiang Xie | 2023 | Journal of Materiomics2023，9，6： | 0 |
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