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Frontiers in Optics + Laser Science 2023, FiO, LS 203: Part of Frontiers in Optics + Laser Science 2023

作者： Cheng, Tonglei Chen, Xiaoyu Suzuki, Takenobu Ohishi, Yasutake State Key Laboratory of Synthetical Automation for Process Industries College of Information Science and Engineering Northeastern University Shenyang110819 China Toyota Technological Institute 2-12-1 Hisakata Tempaku Nagoya468-8511 Japan

Drawing on the effect of self-phase modulation (SPM), a fiber-based temperature sensor is presented in this work by using a polydimethylsiloxane-coated single-mode fiber (SMF) with a tapered structure. © Optica P... 详细信息

ISBN: (纸本)9781957171296

关键词： Self phase modulation

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Wet oxidation of NO with NaClO2 in alkaline conditions: effects of acidic components in flue gas

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Environmental Research 2025年 278卷 121722页

作者： Wang, Huasheng Deng, Shuang Hu, Hongyun Fang, Can Luo, Guangqian Wang, Ze Li, Songgeng State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China School of Chemical Engineering University of Chinese Academy of Sciences Beijing100049 China State Key Laboratory of Coal Combustion School of Energy and Power Engineering Huazhong University of Science and Technology Wuhan430074 China

Excessive ClO2 tends to be produced and escape, causing secondary pollution when wet oxidation of NO with NaClO2 is conducted under acidic conditions. NaClO2 alkaline oxidation has accordingly received a wide attention. In this work, NaClO2 alkaline oxidation of NO has been systematically studied in a self-built spray tower. Focus has been placed on the effects of acidic components contained in flue gas such as CO2, HCl and SO2. ClO2 and HClO2 are considered more effective for NO oxidation, which tend to be produced in an acidic environment. HCO3− has a relatively higher hydrolysis coefficient than ClO2−, leading to more HClO2 formation. Similarity is found with HCl although the effect is not as significant as CO2 due to its low concentration in flue gas. SO2 exhibits a negative effect on NO removal since HClO2 can be consumed by SO2. Nearly 100 % NO removal efficiency can be achieved although there is an initial time delay necessary for the neutralization of alkaline environment. A similar performance has been observed for HCl. On the contrary, SO2 exhibits a negative effect on NO removal due to the competition with NO in the consumption of NaClO2. Additives such as NaClO and CTAC were also used to enhance NaClO2 alkaline oxidation performance. Interesting to note that CTAC can nearly eliminate the time delay by intensifying the gas-liquid mass transfer. © 2025 Elsevier Inc.

关键词： Diffusion in solids

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Self-Supported Bifunctional P-Cose/Nf Electrodes for High Efficiency and Durability Hydrogen Production Coupled with Sulfion Valorization

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SSRN 2024年

作者： Qin, Shucan Peng, Qianqian Kong, Weizhen Xue, Rong Xu, Chongqing Shi, Jianming Liu, Yanrong Ma, Yunqian Jinan250353 China Longzihu New Energy Laboratory Zhengzhou Institute of Emerging Industrial Technology Henan University Zhengzhou450000 China Mingshuo Environment Group Weifang262605 China CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Mesoscience and Engineering Beijing Key Laboratory of Ionic Liquids Clean Process Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China

Integrating sulfide oxidation reaction (SOR) with hydrogen evolution reaction (HER) by electrochemical technology for sulfion valorization and hydrogen production is expected to maximize resources. Here, we report a phosphorus-doped transition metal selenide supported on nickel foam (P-CoSe/NF) to be efficiently and stably dual-used for SOR and HER, and this succulent-like catalyst with large surface area has an excellent activity up to 100 mA cm-2 at only 0.362 V. The H2 Faraday efficiency and rate of sulfur evolution reach 97.4% and 26.24 mg h-1, respectively. The Density Functional Theory calculations demonstrate that P-doping can offer an optimal electronic structure and local coordination environment by tuning d electron number. The potential rate-limiting step with a low energy barrier indicates the self-cleaning tendency. This work presents a promising approach for transition metal selenide catalysts in the electrochemistry field, representing a significant advancement in low-cost and high value-added utilization of waste resources. © 2024, The Authors. All rights reserved.

关键词： Hydrogen production

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Selective adsorption behavior of ion-imprinted magnetic chitosan beads for removal of Cu(Ⅱ) ions from aqueous solution

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Chinese Journal of Chemical engineering 2021年第11期34卷 103-111页

作者： Licheng Ma Qi Zheng State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Rare Metals and Metallurgy Materials Research Institute General Research Institute for Nonferrous MetalsBeijing 100008China

Heavy metal ion is one of the major environmental *** this study,a Cu(Ⅱ)ions imprinted magnetic chitosan beads are prepared to use chitosan as functional monomer,Cu(Ⅱ)ions as template,Fe_(3)O_(4) as magnetic core and epichlorohydrin and glutaraldehyde as crosslinker,which can be used for removal Cu(Ⅱ)ions from *** kinetic study shows that the adsorption process follows the pseudosecond-order kinetic *** adsorption isotherm study shows that the Langmuir isotherm equation best fits for the monolayer adsorption *** selective adsorption properties are performed in Cu(Ⅱ)/Zn(Ⅱ),Cu(Ⅱ)/Ni(Ⅱ),and Cu(Ⅱ)/Co(Ⅱ)binary *** results shows that the ⅡMCD has a high selectivity for Cu(Ⅱ)ions in binary *** mechanism of ⅡMCD recognition Cu(Ⅱ)ions is also *** results show that the ⅡMCD adsorption Cu(Ⅱ)ions is an enthalpy controlled *** absolute value of DH(Cu(Ⅱ))and DS(Cu(Ⅱ))is greater than DH(Zn(Ⅱ),Ni(Ⅱ),Co(Ⅱ))and DS(Zn(Ⅱ),Ni(Ⅱ),Co(Ⅱ)),respectively,this indicates that the Cu(Ⅱ)ions have a good spatial matching with imprinted holes on Ⅱ*** FTIR and XPS also demonstrates the strongly combination of function groups on imprinted holes in the suitable space ***,the ⅡMCD can be regenerated and reused for 10 times without a significantly decreasing in adsorption *** information can be used for further application in the selective removal of Cu(Ⅱ)ions from industrial wastewater.

关键词： Ion imprinted techniques Selective recognition Ion-imprinted magnetic chitosan beads Kinetic Thermodynamics

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Effect of crystallization on purity of volatile metallic magnesium prepared from a one-step multi-region condensation process under vacuum condition

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Journal of Magnesium and Alloys 2022年第11期10卷 3281-3287页

作者： Bin Yang Dong Liang Neng Xiong Yang Tian Baoqiang Xu Yongnian Dai The State Key Laboratory of Complex Non-ferrous Metal Resources Clean Utilization Kunming University of Science and TechnologyKunming 650093China National Engineering Laboratory for Vacuum Metallurgy Kunming University of Science and TechnologyKunming 650093China Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunming 650093China IME Institute of Process Metallurgy and Metal Recycling RWTH Aachen UniversityAachen 52056Germany

We hereby report a green and simple volatilization-condensation process to prepare high-purity magnesium in different crystal forms under vacuum condition. This method can be also used for the analysis of other metals, which can be separated by the same concept. In addition, Mg condensation is a very fast process, and the corresponding easy growth of the Mg crystals is promoted when the concentration of magnesium vapor is raised. From the view of crystallization, ultrafast crystal growth of high-purity magnesium is a barrier-free and orderly process. Interestingly, different condensed forms of Mg obtained via this ultrafast volatilization-condensation process are showing different purities. The distinct morphological formation of Mg in different condensed form is probably attributed to the differences of surface energy change of Mg during the condensation process.

关键词： Mg Purity Vacuum Condensation Crystallization

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Flexible Chain Tunning of Metalloporphyrin Ionic Framework: Spatial Microenvironment Construction for Enhancing Urea Alcoholysis

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SSRN 2024年

作者： Deng, Lili Su, Qian Li, Zengxi Cheng, Weiguo School of Chemical Sciences University of Chinese Academy of Sciences Beijing100049 China Beijing Key Laboratory of Ionic Liquids Clean Process State Key Laboratory of Mesoscience and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China

Urea alcoholysis is a key industrial sustainable process in CO2-based chemical production and hydrogen energy storage, but current approaches based on catalytic materials are limited due to their lack structural accuracy and customizability nature. For a sustainable supply of catalytic materials, considerable effort from the scientific aspect for developing functional organic-designable-heterogeneous (metalloporphyrin ionic framework) catalysts have been made by combining metal ions and ionic liquids (ILs) for the transformation of urea and biobased diols into cyclic carbonates. As expected, benefiting from fine tuning of metalloporphyrin ionic framework spatial microenvironment by flexible chains, which effectively regulates the charge distribution of porphyrin coordinated metal ions and in situ synthesized ILs. Meanwhile, the medium flexible chain of Zn-TPyP-Bu-Br ensures consistency in the direction of porphyrin monomer and abundance of active sites, promoting the catalytic conversion of urea and intermediate substance for higher yield of cyclic carbonates with remarkable stability and less catalyst dosage. Based on detailed experiments and molecular dynamics simulations, this catalytic microenvironment effects can be explained by the influence of porphyrin flexible linking chains on the charge regulation of active sites. This work suggests a strategy to be extended to the rational design of a large family of functional organic polymer catalysts that could fulfil the vast promise of urea and biobased diols to fuel a reliable and potentially sustainable energy source. © 2024, The Authors. All rights reserved.

关键词： Hydrogen storage

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Highly reliable and efficient encoding systems for hexadecimal polypeptide-based data storage

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Fundamental Research 2023年第2期3卷 298-304页

作者： Yubin Ren Yi Zhang Yawei Liu Qinglin Wu Hong-Gang Hu Jingjing Li Chunhai Fan Dong Chen Kai Liu Hongjie Zhang Department of Chemistry Tsinghua UniversityBeijing 100084China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Institute of Process Equipment College of Energy Engineering and State Key Laboratory of Fluid Power and Mechatronic SystemsZhejiang UniversityHangzhou 310027China Institute of Translational Medicine Shanghai UniversityShanghai 200444China Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineeringand Institute of Molecular MedicineRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200240China

Polypeptides consisting of amino acid(AA)sequences are suitable for high-density information ***,the lack of suitable encoding systems,which accommodate the characteristics of polypeptide synthesis,storage and sequencing,impedes the application of polypeptides for large-scale digital data *** address this,two reliable and highly efficient encoding systems,***-Arithmetic-Base64-Shuffle-RS(RABSR)and RaptorQArithmetic-Huffman-Rotary-Shuffle-RS(RAHRSR)systems,are developed for polypeptide data *** two encoding systems realized the advantages of compressing data,correcting errors of AA chain loss,correcting errors within AA chains,eliminating homopolymers,and pseudo-randomized *** coding efficiency without arithmetic compression and error correction of audios,pictures and texts by the RABSR system was 3.20,3.12 and 3.53 Bits/AA,*** that using the RAHRSR system reached 4.89,4.80 and 6.84 Bits/AA,*** implemented with redundancy for error correction and arithmetic compression to reduce redundancy,the coding efficiency of audios,pictures and texts by the RABSR system was 4.43,4.36 and 5.22 Bits/AA,*** efficiency further increased to 7.24,7.11 and 9.82 Bits/AA by the RAHRSR system,***,the developed hexadecimal polypeptide-based systems may provide a new scenario for highly reliable and highly efficient data storage.

关键词： Biomaterial Polypeptide Data storage Hexadecimal Encoding system

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Effect of layered-coupling in twisted WSe_(2) moiré superlattices

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Nano Research 2023年第2期16卷 3435-3442页

作者： Biao Wu Haihong Zheng Shaofei Li Chang-Tian Wang Junnan Ding Jun He Zongwen Liu Jian-Tao Wang Yanping Liu School of Physics and Electronics Hunan Key Laboratory for Super-microstructure and Ultrafast ProcessCentral South UniversityChangsha 410083China State Key Laboratory of High-Performance Complex Manufacturing Central South UniversityChangsha 410083China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China School of Chemical and Biomolecular Engineering The University of SydneyNSW 2006Australia The University of Sydney Nano Institute The University of SydneyNSW 2006Australia Songshan Lake Materials Laboratory Dongguan 523808China Shenzhen Research Institute of Central South University Shenzhen 518000China

Recently,the discovery of a variety of moiré-related properties in the twisted vertical stacking of two different monolayers has attracted considerable *** introduction of small twist angles in transition metal dichalcogenide(TMD)heterostructures leads to the emergence of moirépotentials,which provide a fascinating platform for the study of strong interactions of *** there has been extensive research on moiréexcitons in twisted bilayer superlattices,the capture and study of moiréexcitons in homostructure superlattices with layer-coupling effects remain ***,we present the observation of moiréexcitons in the twisted 1L-WSe_(2)/1L-WSe_(2)and 1L-WSe_(2)/2L-WSe_(2)homostructures with various layer-coupling *** results reveal that the moirépotential increases(~260%)as the number of underlying layers decreases,indicating the effect of layer coupling on the modulation of the moiré*** effects of the temperature and laser power dependence as well as valley polarization on moiréexcitons were further demonstrated,and the crucial spectral features observed were *** findings pave the way for exploring quantum phenomena and related applications of quantum information.

关键词： twisted homostructures moirésuperlattices moirépotential layer-coupling

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Preparation and Thermal Stability of AlMoON Based Solar Selective Absorption Coating

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Journal of Wuhan University of Technology(Materials Science) 2024年第4期39卷 854-862页

作者：闵捷 YUAN Wenxu CHEN Yufei LAN Yapeng YAN Mengdi LIU Hanze CHENG Xudong 代路 Hubei Provincial Key Laboratory of Green Materials for Light Industry Hubei University of TechnologyWuhan 430068China Col-laborative Innovation Center of Green Light-weight Materials and Processing Hubei University of TechnologyWuhan 430068China School of Materials and Chemical Engineering Hubei University of TechnologyWuhan 430068China School of Industrial Design Hu-bei University of TechnologyWuhan 430068China State Key Laboratory of Advanced Technology for Materials Synthesis and Process-ing Wuhan University of TechnologyWuhan 430070China Science and Technology on Thermal Energy and Power Laboratory Wuhan Second Ship Design&Research InstituteWuhan 430205China

AlMoON based solar selective absorption coatings were deposited on stainless steel substrate by magnetron *** coatings included infrared reflection layer Mo,absorption layer AlMoN,absorption layer AlMoON and antireflection layer AlMoO from bottom to *** surface of the deposited coatings is flat without obvious *** absorptivity and emissivity are 0.896 and 0.09,respectively,and the quality factor is *** heat treatment at 500℃-36 h,the surface roughness of the coating increases,a small number of cracks and other defects appear,and the broken part is still attached to the coating surface.A certain degree of element diffusion occurs in the coatings,resulting in the decline of the optical properties of the *** absorptivity and emissivity are 0.883 and 0.131,respectively,the quality factor is 7.06,and the PC value is *** coatings do not fail under this condition and have certain thermal stability.

关键词： AlMoON coating preparation thermal stability

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Eliminating Hysteresis of Perovskite Solar Cells with Hollow CO_(2) Mesoporous Electron Transport Layer

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Chemical Research in Chinese Universities 2022年第1期38卷 117-122页

作者： HAN Wensheng WANG Yongling WAN Jiawei WANG Dan State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190P.R.China University of Chinese Academy of Sciences Beijing 100049P.R.China Graduate School of Science and Technology Gunma University 1-5-1 Tenjin-choKiryuGunma 376-8515Japan

Current density-voltage(J-V) hysteresis issue caused by unbalanced charge transport has greatly limited the improvement of power conversion efficiency(PCE) of halide perovskite solar cells(PSCs). Herein, hollow TiO2 mesoporous electron transport layer(ETL) was used to fabricate PSCs. The structure-dependent charge collection as well as its effect on PCE and hysteresis impactor(HI) of PSC were investigated. The results demonstrate that TiO2 hollow spheres in a size of around 50 nm (HS-50) can form a high quality perovskite/ETL interface with a less trap density. Moreover, the hollow TiO2 with the thin shell can help promote the extraction of electrons from perovskite layer to ETL, so as to reduce the charge accumulation and recombination at the perovskite/ETL interface and alleviate the hysteresis behavior. As a result, PSCs with HS-50 TiO2 delivered a champion PCE of 16.81% with a small HI of 0.0297, indicating a better performance than the commercial P25(PCE of 15.87%, HI of 0.2571).

关键词： Hollow structure Titanium dioxide Hysteresis Halide perovskite solar cell Charge collection

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