通讯机构：
[Chenjiang Liu] U;Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources;College of Chemistry, College of Future Technology, Xinjiang University, Urumqi 830017, Xinjiang, PR China
摘要：
Ketones plays important role in pharmaceuticals, food additives, and organic synthesis intermediates. Selective oxidation cleavage of olefins under efficient, green methods are important for the synthesis of ketones. Both homogeneous and heterogeneous catalysis are used in this reaction. Homogeneous catalyst is difficult to recover and separate, which is not meet the requirements of green chemistry. Compared with homogeneous catalyst, heterogeneous catalyst can solve these adverse factors. Herein, we used a bismuth-rich Bi4O5Br2 obtained by microwave method as a heterogeneous photocatalyst, water/dioxane (3 : 1, v/v) as the solvent, molecular oxygen as the oxygen source, various ketones were obtained in moderate to good yields under visible-light irradiation. The catalyst can be used for 4 times and without a significant reduction in activity. Through the EPR experiment and mechanism verification experiments, superoxide radicals or photogenerated electrons and holes played important roles in the oxidative cleavage of C=C double bonds. (C) 2022 Published by Elsevier Inc.
摘要：
Solid electrolyte is an important part of all-solid-state lithium-ion battery, and it is the key and difficult point in the research of all-solid-state lithium-ion battery. Both solid polymer electrolyte and inorganic ceramic electrolytes have obvious deficiencies in electrochemical and mechanical properties, but polymer-inorganic filler solid composite electrolyte is obtained by adding inorganic filler into solid polymer electrolyte and this way can complement their shortcomings. In this paper, the effect of inorganic fillers on lithium-ion migration in polymer electrolyte is analyzed. The latest research progress of solid composite electrolyte based on polyethylene oxide, polyacrylonitrile, and polycarbonate is introduced, which provides guidance for the research of solid composite electrolyte in the future.
通讯机构：
[Ju-Lan Zeng] H;Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation and Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
摘要：
In this work, pristine multiwalled carbon nanotubes (MCNTs) and mixed acids treated MCNTs (ACNTs) were applied as reinforcement fillers to prepare silica aerogels via ambient pressure drying followed by lyophilization. The prepared aerogels were then used as supporting materials to adsorb mesoerythritol (ME) to obtain novel form-stable PCMs by vacuum infiltration. Investigation of the prepared form-stable PCMs revealed that the ACNT/SiO2 aerogels possessed higher porosity than MCNT/SiO2 aerogels due to that the ACNTs exhibited stronger interactions with silica than the MCNTs, and could more effectively prevent the prepared ACNT/SiO2 aerogels from collapsing and shrinking during drying. Consequently, the loading of ME in the form-stable PCMs supported by ACNT/SiO(2 )aerogels (AFPCMs) was greatly higher than that in the form-stable PCMs supported by MCNT/SiO2 aerogels (MFPCMs). When ACNT/SiO2-6 aerogel, in which 60 mg ACNTs were used as reinforcement filler, was applied as supporting material, the obtained form-stable PCM (AFPCM-6) exhibited a very high melting latent heat of 297.3 J/g, an elevated crystallizing temperature of 56 degrees C and an improved crystallizing latent heat of 231 J/g. Besides, the latent heat storage/release properties of AFPCM-6 maintained stable enough over 50 melting/crystallizing cycles. Meanwhile, the thermal conductivity of AFPCM-6 was 37.5 % higher than that of pure ME. Hence, AFPCM-6 could be an excellent form-stable PCM and could find its applications in related fields. (C) 2022 Elsevier B.V. All rights reserved.
作者机构：
[李丹; 董超; 刘春景; 史梦华] Yueyang Forest & Paper Co. ，Ltd., Hu’nan Province, Yueyang, 414002, China;[戴洋; 王玉珑; 李玉林; 魏鑫鑫] School of Chemistry and Chemical Engineering, Changsha University of Science & Technology, Hu’nan Province, Changsha, 410114, China;[吴学勋] Hunan Refining New Material Technology Co. ，Ltd., Hu’nan Province, Changsha, 410221, China
通讯机构：
[Shi, M.] Y;[Wang, Y.] S;School of Chemistry and Chemical Engineering, Hu’nan Province, China;Yueyang Forest & Paper Co. ，Ltd., Hu’nan Province, China
期刊：
Energy Technology,2022年10(11):2200523- ISSN：2194-4288
通讯作者：
Yu, Linping(linping_yu@csust.edu.cn)
作者机构：
[Wu, Yong; Xu, Ziyi; Dou, Xiaoyi; Yu, Linping; Teng, Xianggui; Zeng, Julan] Changsha Univ Sci & Technol, Hunan Prov Key Lab Mat Protect Elect Power & Tran, Changsha 410114, Peoples R China.;[Wei, Jinchao] Zhongye Changtian Int Engn Co Ltd, Res & Dev Dept, Changsha 410114, Peoples R China.;[Chen, Qizhi] Guangxi Huiyuan Manganese Ind Co Ltd, Res & Dev Dept, Laibin 546138, Peoples R China.;[Zhang, Jian] Changsha Univ Sci & Technol, Coll Automot & Mech Engn, Changsha 410114, Peoples R China.
通讯机构：
[Linping Yu] H;Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha, 410114 China
摘要：
Self‐supporting hierarchically porous P‐doped MoO2/porous (Prs) Ni is developed as a cost‐effective and robust electrocatalyst for hydrogen evolution reaction with reduced overpotentials in alkaline solution. Constructing integrated electrocatalysts free from binder is recognized as a promising approach to promote the long‐term efficiency of hydrogen evolution through water electrolysis. Herein, the in situ growth of MoO2 on a porous Ni substrate followed by phosphorus doping is reported to generate self‐supported P‐doped MoO2/porous Ni electrocatalyst for hydrogen evolution reaction. The porous Ni substrate provides a large specific surface area and highly accessible channels for accommodating the active nanoparticles, which achieves an ultralow overpotential of 81 mV at 10 mA cm−2, a small Tafel slope of 99 mV decade−1, and exceptionally high durability for 24 h. The excellent performance of P‐doped MoO2/porous Ni is mainly attributable to the efficient electrolyte diffusion, fast emission of gas bubbles, and enhanced electrical conductivity brought by porous Ni substrate and the highly active sites. This self‐supported catalyst is distinct and superior to the conventional powdery catalysts in developing new energy conversion technologies.
摘要：
Microencapsulation of phase change materials (PCMs) with functional shell materials such as luminescent material could endow the obtained microencapsulated PCMs (MPCMs) with improved latent heat storage properties. The PCM core in turn could protect the luminescence shell from large temperature shifting and thus improve its performance. In this work, a series of MPCMs derived from n-octadecane (ODE) core and CaF2 shell were synthesized via a self-assembly method. The effects of the preparation conditions, including the core/shell mass ratio, the dosage of the emulsifier (styrene-maleic anhydride copolymer, SMA) and the dosage of the chelator (Na(3)Cit), on the properties of the prepared ODE@CaF2 MPCMs were investigated and the optimal preparation condition was obtained. The MPCM obtained according to the optimal procedure (MPCM1) exhibited an encapsulation ratio of 54.02% and a latent heat of 131 J/g with negligible leakage. It also possessed excellent thermal reliability and significantly improved thermal conductivity. The MPCM1 could not only be utilized as good latent heat storage material and thermal regulation material, but also provided one new idea to prevent the thermal quenching of luminescence materials. In addition, this work could shed some light on the high-value utilization of recovered fluorine resources.
通讯机构：
[Fuchun Gong] C;College of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha 410114, China<&wdkj&>Author to whom correspondence should be addressed.
通讯机构：
[Jin Zhang] H;Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha, 410114, PR China
摘要：
Design and construction of a heterojunction structured photocatalyst with efficient electron transfer is of great significance. In this work, we prepared a unique Z-scheme Ag/Agln(5)S(8)/BiVO4 photocatalyst of which BiVO4 has highly exposed (040) crystal facets. Ag as an electronic medium to build a special and efficient electron transfer path. In addition, the surface plasmon resonance effect of Ag improves the sunlight utilization of photocatalyst, and Ag as an electron transport medium and co-catalyst enhances the photocatalytic ability of the photocatalyst. Under optimum reaction conditions, the loading of AgIn5S8 is 30%, the reaction rate constants of tetracycline degradation over Ag/BA-30% were 1.96 and 5.58 times of pure BiVO4 and AgIn5S8. The possible Z-scheme electron-hole pair transfer mechanism was presented through the capture experiment. It is suggested that .O-2(-), h(+) and .OH are engaged in the degradation of TC. And the prepared photocatalysts were proved to have a potential application value after four consecutive cycles.
摘要：
The Cs3PW12O40/Ag3PO4 (CsPW/Ag3PO4) heterojunction photocatalyst in this study was prepared using a simple chemical precipitation method. Spherical CsPW particles were successfully deposited on Ag3PO4 nanocrystals, all the as-prepared samples are characterized by X-ray diffraction pattern (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), UV visible spectroscopy (UV-Vis), and X-ray photoelectron spectroscopy (XPS). The catalyst activity in relation to rhodamine B (RhB) degradation was evaluated under visible light (lambda > 420 nm). The CsPW/Ag3PO4 heterojunction photocatalyst can effectively degrade RhB. The Z-scheme 3% CsPW/Ag3PO4 heterojunction photocatalyst has a higher photocatalytic ability compared with the single-component photocatalyst CsPW or Ag3PO4. The comparatively high photocatalytic performance can be attributed to the high matching of the energy band position and close interface contact, suggesting an enhanced separation efficiency of the photoinduced carriers of the CsPW/Ag3PO4 heterojunction photocatalyst. The reactive species trapping experiments demonstrated photogenerated holes (h(+)) and superoxide radicals to be the main active components of photocatalytic degradation. A possible photocatalytic mechanism is subsequently proposed.
通讯机构：
[Yuhai Dou; Shanqing Zhang] C;[Linping Yu] H;Centre for Clean Environment and Energy, School of Environment and Science, Gold Coast Campus, Griffith University, Gold Coast 4222, Australia<&wdkj&>Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha 410114, Hunan, China
通讯机构：
[Cuifeng Ying] T;These authors contributed equally to this work.<&wdkj&>Advanced Optics and Photonics Laboratory, Department of Engineering, School of Science &Technology, Nottingham Trent University, Nottingham NG1 4FQ, UK<&wdkj&>Author to whom correspondence should be addressed.
摘要：
Nanopore sensors provide a unique platform to detect individual nucleic acids, proteins, and other biomolecules without the need for fluorescent labeling or chemical modifications. Solid-state nanopores offer the potential to integrate nanopore sensing with other technologies such as field-effect transistors (FETs), optics, plasmonics, and microfluidics, thereby attracting attention to the development of commercial instruments for diagnostics and healthcare applications. Stable nanopores with ideal dimensions are particularly critical for nanopore sensors to be integrated into other sensing devices and provide a high signal-to-noise ratio. Nanopore fabrication, although having benefited largely from the development of sophisticated nanofabrication techniques, remains a challenge in terms of cost, time consumption and accessibility. One of the latest developed methods-controlled breakdown (CBD)-has made the nanopore technique broadly accessible, boosting the use of nanopore sensing in both fundamental research and biomedical applications. Many works have been developed to improve the efficiency and robustness of pore formation by CBD. However, nanopores formed by traditional CBD are randomly positioned in the membrane. To expand nanopore sensing to a wider biomedical application, controlling the localization of nanopores formed by CBD is essential. This article reviews the recent strategies to control the location of nanopores formed by CBD. We discuss the fundamental mechanism and the efforts of different approaches to confine the region of nanopore formation.
