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In situ resource utilization of lunar soil for highly efficient extraterrestrial fuel and oxygen supply

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national Science Review 2023年第2期10卷 224-231页

作者： Yuan Zhong Jingxiang Low Qing Zhu Yawen Jiang Xiwen Yu Xinyu Wang Fei Zhang Weiwei Shang Ran Long Yingfang Yao Wei Yao Jun Jiang Yi Luo Weihua Wang Jinlong Yang Zhigang Zou Yujie Xiong Hefei national Research center for Physical Sciences at the Microscale School of Chemistry and Materials Science National Synchrotron Radiation Laboratory School of Information Science and TechnologyUniversity of Science and Technology of China Eco-materials and Renewable Energy Research center (ERERC) Jiangsu Key Laboratory for Nano Technology National Laboratory of Solid State MicrostructuresSchool of PhysicsCollaborative Innovation Center of Advanced MicrostructuresCollege of Engineering and Applied SciencesNanjing University Qian Xuesen laboratory of Space Technology China Academy of Space Technology

Building up a lunar settlement is the ultimate aim of lunar ***, limited fuel and oxygen supplies restrict human survival on the ***,we demonstrate the in situ resource utilization of lunar soil for extraterrestrial fuel and oxygen production,which may power up our solely natural satellite and supply respiratory ***,the lunar soil is loaded with Cu species and employed for electro catalytic CO2conversion,demonstrating significant production of *** addition,the selected component in lunar soil(***3) loaded with Cu can reach a CH4F aradaic efficiency of 72.05% with a CH4production rate of 0.8 mL/min at 600 mA/***,an O2production rate of 2.3 mL/min can be ***,we demonstrate that our developed process starting from catalyst preparation to electrocatalytic CO2conversion is so accessible that it can be operated in an unmmaned manner via a robotic *** a highly efficient extraterrestrial fuel and oxygen production system is expected to push forward the development of mankind’s civilization toward an extraterrestrial settlement.

关键词： Chang’E-5 lunar soil fuel production CO2 conversion extraterrestrial settlement in situ resource utilization

Selective substitution induced anomalous phonon stiffening within quasi-one-dimensional P–P chains in SiP2

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Nano Research 2023年第1期16卷 1107-1114页

作者： Xueting Dai Feng Qin Caiyu Qiu Ling Zhou Junwei Huang Fanghua Cheng Xiangyu Bi Caorong Zhang Zeya Li Ming Tang Shengqiang Wu Xiaoxu Zhao Yangfan Lu Huiyang Gou Hongtao Yuan national laboratory of solid state microstructures Jiangsu Key Laboratory of Artificial Functional MaterialsCollege of Engineering and Applied Sciencesand Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210000China School of materials Science and Engineering Peking UniversityBeijing 100871China College of materials Science and Engineering National Engineering Research Center for Magnesium AlloysChongqing UniversityChongqing 400030China center for High Pressure Science and Technology Advanced Research Beijing 100094China

Light-matter interactions in low-dimensional quantum-confined structures can dominate the optical properties of the materials and lead to optoelectronic *** anisotropic layered silicon diphosphide(SiP2)crystal,the embedded quasi-onedimensional(1D)phosphorus–phosphorus(P–P)chains directly result in an unconventional quasi-1D excitonic state,and a special phonon mode vibrating along the P–P chains,establishing a unique 1D quantum-confined *** SiP2 with the homologous element serves as an effective way to study the properties of these excitons and phonons associated with the quasi-1D P–P chains,as well as the strong interaction between these ***,the experimental observation and the related optical spectral understanding of SiP2 with isoelectronic dopants remain ***,with the photoluminescence and Raman spectroscopy measurements,we demonstrate the redshift of the confined excitonic peak and the stiffening of the phonon vibration mode■of a series of Si(P1−xAsx)2 alloys with increasing arsenic(As)*** anomalous stiffening of■is attributed to the selective substitution of As atoms for P atoms within the P–P chains,which is confirmed via our scanning transmission electron microscopy *** optical spectra evolutions with selective substitution pave a new way to understand the 1D quantum confinement in semiconductors,offering opportunities to explore quasi-1D characteristics in SiP2 and the resulting photonic device application.

关键词： SiP2 quasi-one-dimensional structure Raman photoluminescence phosphide

A Near-Infrared Polymer Acceptor Enables over 15%Efficiency for All-Polymer Solar Cells

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Chinese Journal of Polymer Science 2022年第8期40卷 877-888,I0007页

作者： Tao Wang Rui Sun Xin-Rong Yang Yao Wu Wei Wang Qian Li Chun-Feng Zhang Jie Min The Institute for Advanced Studies Wuhan UniversityWuhan430072China national laboratory of solid state microstructures School of Physicsand Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing210093China Beijing national laboratory for Molecular Sciences Beijing100190China Key laboratory of materials Processing and Mold(Zhengzhou University) Ministry of EducationZhengzhou450002China

Finding effective molecular design strategies to enable efficient charge generation,high charge transport,and small energy loss is a longstanding challenge for developing high-performance all-polymer solar cells(all-PSCs).Here,we designed and synthesized a fused-aromatic-ring-constructed near-infrared(NIR)polymer acceptor(PA)PYT-Tz with fused-ring benzotriazole(BTz)-based A’-DAD-A’structure as electron-deficient-core,n-nonane as alkyl-side-chain and thiophene asπ-bridge,and achieved a power conversion efficiency(PCE)of 15.10%for the all-PSCs with PYT-Tz as acceptor and a wide-bandgap PBDB-T as donor.A control PA PYT reported by our lab recently was introduced for investigating the synergistic effect of the electron-deficient-core and alkyl-side-chain on the optoelectronic properties and photovoltaic performance of the n-type *** with PYT,the designed PYT-Tz exhibits intense and red-shifted absorption,upshifted energy levels,high electron mobility and ordered molecular packing in the active layers,and,blended with PBDB-T,yields the efficient hole injection,ultrafast charge generation,and the decreased non-radiative recombination loss of 0.17 *** note is that the PCE of 15.10%is one of the highest PCE values for an all-PSC reported to *** results indicate BTz-based fused-aromatic-ring-constructed PAs are promising NIR acceptors in the all-PSCs.

关键词： Benzotriazole-based A’-DAD-A’structure Near-infrared polymer acceptor High-performance all-polymer solar cells

From lab to fab: path forward for 2D material electronics

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Science China(Information Sciences) 2023年第6期66卷 115-121页

作者： Hongkai NING Zhihao YU Taotao LI Haoliang SHEN Gen LONG Yi SHI Xinran WANG national laboratory of solid state microstructures School of Electronic Science and Engineering and Collaborative Innovation Center of Advanced MicrostructuresNanjing University School of Integrated Circuits Nanjing University College of Integrated Circuit Science and Engineering Nanjing University of Posts and Telecommunications Suzhou laboratory

The increasing demand for computation requires the development of energy-efficient logic devices with reduced dimensions. Owing to their atomic thickness, 2D semiconductors are expected to provide possible solutions at the sub-1 nm technology node. Furthermore, taking advantage of the van der Waals nature, the low-temperature back-end of line integration with silicon may occur in the near future. In this perspective, vital progress in material synthesis, device engineering, and integration technologies toward integrated circuits based on 2D materials is reviewed. The challenges and important milestones on the roadmap for the next decade toward the fab adoption of 2D materials are outlined. Particularly, performance,power, area, cost, and equipment for further technology development in this area are proposed as key metrics and enablers.

关键词： two-dimensional materials transition-metaldichalcogenides equipment integrated circuits roadmap

Multiscale structural engineering of carbon nitride for enhanced photocatalytic H2O2 production

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Nano Research 2023年第4期16卷 4524-4530页

作者： Qing He Bounxome Viengkeo Xuan Zhao Zhengyuan Qin Jie Zhang Xiaohan Yu Yongpan Hu Wei Huang Yanguang Li Institute of Functional Nano and Soft materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China national laboratory of solid state microstructures School of Physicsand Collaborative Innovation Center for Advanced MicrostructuresNanjing UniversityNanjing 210093China Macao Institute of materials Science and Engineering Macao University of Science and TechnologyMacao 999078China

Carbon nitride(C_(3)N_(4))holds great promise for photocatalytic H_(2)O_(2)production from oxygen *** spite of great research efforts,they still suffer from low catalytic efficiency primarily limited by the fast recombination of photogenerated charge *** this work,we report the multiscale structural engineering of C_(3)N_(4)to significantly improve its optoelectronic properties and consequently photocatalytic *** product consists of porous spheres with high surface areas,abundant nitrogen defects,and alkali metal *** visible light irradiation,our catalyst shows a remarkable H_(2)O_(2)production rate of 3,080μmol·g^(−1)·h^(−1),which is more than 10 times higher than that of bulk C_(3)N_(4)and exceeds those of most other C_(3)N_(4)-based ***,the catalyst exhibits great stability,and can continuously work for 15 h without obvious activity decay under visible light irradiation,eventually giving rise to a high H_(2)O_(2)concentration of ca.45 mM.

关键词： photocatalytic H_(2)O_(2)production oxygen reduction carbon nitride multiscale structural engineering

MOFs derived ZnSe/N-doped carbon nanosheets as multifunctional interlayers for ultralong-Life lithium-sulfur batteries

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Journal of materials Science & Technology 2022年第30期125卷 97-104页

作者： Biao Wang Dongyue Sun Yilun Ren Xiaoya Zhou Yujie Ma Shaochun Tang Xiangkang Meng national laboratory of solid state microstructures Collaborative Innovation Center of Advanced MicrostructuresCollege of Engineering and Applied SciencesNanjing UniversityNanjing 210093China Haian Institute of High-Tech Research Nanjing UniversityNanjing 226600China

The shuttle effect and slow conversion rate of lithium polysulfides(LiPSs)have become the main obstructs to the development of lithium-sulfur(Li-S)***,the low cost metal-organic frameworks derived nitrogen-doped carbon nanosheets embedded with zinc selenide nanoparticles(ZnSe/NC nanosheets)were designed and synthesized for Li-S *** the LiPSs trapping-layer,these nanocomposites provide some key benefits:(1)The nitrogen doping changes local electron distribution in the carbon nanosheets,thus the electrical conductivity is greatly improved for facilitating the transport of electrons/ions.(2)Nitrogen atoms and ZnSe nanoparticles play an important role in anchoring the LiPSs via chemical interactions.(3)The remarkable catalytic activity of ZnSe nanoparticles can accelerate the redox kinetics of *** a result,the Li-S battery with the ZnSe/NC nanosheets modified separator exhibits ultralong lifespan over 1500 cycles with a small capacity loss of only 0.046%per cycle at 1 C,which is superior over those reported ***,the Li-S battery with a high sulfur loading of 4.71 mg cm^(-2) can still maintain a high areal capacity of 4.28 mAh cm^(-2) after 50 *** work provides a new route to the design of multifunctional low cost and high-performance separators for remarkably stable Li-S batteries.

关键词： Lithium-sulfur batteries Metal-organic frameworks Zinc selenide Multifunctional separator Adsorption and catalysis

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Strain engineering of anisotropic light-matter interactions in onedimensional P-P chain of SiP_(2)

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Nano Research 2022年第8期15卷 7378-7383页

作者： Fanghua Cheng Junwei Huang Feng Qin Ling Zhou Xueting Dai Xiangyu Bi Caorong Zhang Zeya Li Ming Tang Caiyu Qiu Yangfan Lu Huiyang Gou Hongtao Yuan national laboratory of solid state microstructures and Jiangsu Key laboratory of Artificial Functional materials College of Engineering and Applied SciencesNanjing UniversityNanjing 210000China College of materials Science and Engineering National Engineering Research Center for Magnesium AlloysChongqing UniversityChongqing 400030China center for High Pressure Science and Technology Advanced Research Beijing 100094China

Strain engineering can serve as a powerful technique for modulating the exotic properties arising from the atomic structure of *** have been demonstrated that one-dimensional(1D)structure can serve as a great platform for modulating electronic band structure and phonon dispersion via strain ***,in a van der Waals material silicon diphosphide(SiP_(2)),quasi-1D zigzag phosphorus–phosphorus(P–P)chains are embedded inside the crystal structure,and can show unique phonon vibration modes and realize quasi-1D *** those optical properties by the atom displacements via strain engineering is of great interest in understanding underlying mechanism of such P–P chains,however,which remains ***,we demonstrate the strain engineering of Raman and photoluminescence(PL)spectra in quasi-1D P–P chains and resulting in anisotropic manipulation in SiP_(2).We find that the phonon frequencies of SiP_(2)in Raman spectra linearly evolve with a uniaxial strain along/perpendicular to the quasi-1D P–P chain ***,by applying tensile strain along the P–P chains,the band gap energy of strained SiP_(2)can significantly decrease with a tunable value of~55 *** on arsenic(As)element doping into SiP_(2),the strain-induced redshifts of phonon frequencies decrease,indicating the stiffening of the phonon vibration with the increased arsenic doping *** results provide an opportunity for strain engineering of the light–matter interactions in the quasi-1D P–P chains of SiP_(2)crystal for potential optical applications.

关键词： strain engineering silicon diphosphide Raman photoluminescence

Experimental quantum secret sharing based on phase encoding of coherent states

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Science China(Physics,Mechanics & Astronomy) 2023年第6期66卷 139-147页

作者： Ao Shen Xiao-Yu Cao Yang Wang Yao Fu Jie Gu Wen-Bo Liu Chen-Xun Weng Hua-Lei Yin Zeng-Bing Chen national laboratory of solid state microstructures and School of Physics Collaborative Innovation Center of Advanced MicrostructuresNanjingUniversityNanjing 210093China Henan Key laboratory of Quantum Information and Cryptography SSF IEUZhengzhou 450000China Beijing national laboratory for Condensed Matter Physics and Institute of Physics Chinese Academy of SciencesBeijing 100190China

Quantum secret sharing(QSS)is one of the basic communication primitives in future quantum networks which addresses part of the basic cryptographic tasks of multiparty communication and ***,it is a challenge to provide a practical QSS protocol with security against general attacks.A QSS protocol that balances security and practicality is still ***,we propose a QSS protocol with simple phase encoding of coherent states among three *** the requirement of impractical entangled resources and the need for phase randomization,our protocol can be implemented with accessible *** provide the finite-key analysis against coherent attacks and implement a proof-of-principle experiment to demonstrate our scheme’s *** scheme achieves a key rate of 85.3 bps under a 35 d B channel *** with security against general attacks and accessible technology,our protocol is a promising candidate for practical multiparty quantum communication networks.

关键词： quantum secret sharing coherent state phase encoding coherent attack finite-size

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Highly crystalline and water-wettable benzobisthiazole-based covalent organic frameworks for enhanced photocatalytic hydrogen production

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national Science Review 2023年第1期10卷 268-276页

作者： Wei Huang Yongpan Hu Zhengyuan Qin Yujin Ji Xuan Zhao Yunling Wu Qing He Youyong Li Chunfeng Zhang Jun Lu Yanguang Li Institute of Functional Nano and Soft materials(FUNSOM) Soochow University Jiangsu Key laboratory for Advanced Negative Carbon Technologies Soochow University national laboratory of solid state microstructures School of Physics and Collaborative Innovation Center for Advanced MicrostructuresNanjing University Macao Institute of materials Science and Engineering (MIMSE) MUST-SUDA Joint Research Center for Advanced Functional Materials Macau University of Science and Technology College of Chemical and Biological Engineering Zhejiang University

Two-dimensional covalent organic frameworks are promising for photocatalysis by virtue of their structural and functional diversity,but generally suffer from low activities relative to their inorganic *** fulfill their full potential re quires a rational tailoring of their structures at different scales as well as their surface ***,we demonstrate benzobisthiazole-based covalent organic frameworks as a superior photocatalyst for hydrogen *** product features high crystallinity with ordered 2.5-nm-wide cylindrical mesopores and great water *** structural advantages afford our polymeric photo catalyst with fast charge carrier dynamics as evidenced by a range of spectroscopic characterizations and excellent catalytic performances when suspended in solution or supported on melamine *** visible-light irradiation,it enables efficient and stable hydrogen evolution with a production rate of 487 μmol h-1(or a mass-specific rate of 48.7 mmol g-1h-1)—far superior to the previous state of the *** also demonstrate that hydrogen production can be stoichiometrically coupled with the oxidation conversion of biomass as exemplified by the conversion of furfuryl alcohol to 2-furaldehyde.

关键词： covalent organic frameworks photocatalysis hydrogen evolution benzobisthiazole water-wettable