M. S. Tivanov^b,, T. M. Razykov^a, K. M. Kuchkarov^a,b,, A. N. Olimov^a, R. R. Khurramov^a, D. Z. Isakov^a, Z. A. Makhmudov^a, M. Pirimmetov^a, A. Nasirov^c, D. S. Bayko^b, O. V. Korolik^b

Chalcogenide Letters, Vol.21, No.10, pp. 819-828, 2024, DOI:10.15251/CL.2024.2110.819

Abstract Using the thermal evaporation method, thin crystalline films of Sb₂(S_xSe_1-x)₃ are produced at the substrate temperature of 300℃. The mixed powders of the Sb₂S₃ and Sb₂Se₃ is used as a source material. The influence of the S/Se component ratio on the morphology and structural characteristics of Sb₂(S_xSe_1-x)₃ thin films is investigated. As demonstrated by the results of X-ray energy dispersive spectroscopy, the formed films of Sb₂(S_xSe_1-x)₃ have a components ratio close to the stoichiometry. Besides, Morphological and structural analyses reveal significant differences in the surface morphology of Sb₂(S_xSe_1-x)₃ thin film absorbers, indicating that the properties of the films More >

Meng Xiang¹, Zhou Yang¹, Jingjing Yang¹, Tong Lu¹, Danqi Wu¹, Zhijun Liu¹, Rongjie Xue¹, Shuang Dong^2,*

Journal of Renewable Materials, Vol.10, No.3, pp. 821-831, 2022, DOI:10.32604/jrm.2022.017347 - 28 September 2021

Abstract Influenced by recent COVID-19, wearing face masks to block the spread of the epidemic has become the simplest and most effective way. However, after the people wear masks, thousands of tons of medical waste by used disposable masks will be generated every day in the world, causing great pressure on the environment. Herein, conductive polymer composites are fabricated by simple melt blending of mask fragments (mask polypropylene, short for mPP) and multi-walled carbon nanotubes (MWNTs). MWNTs were used as modifiers for composites because of their high strength and high conductivity. The crystalline structure, mechanical, electrical… More >

Yuan Zhang¹, Ping Li¹, Yiqiang Wu^1,2, Guangming Yuan^1,2, Xianjun Li^1,2, Yingfeng Zuo^1,2,*

Journal of Renewable Materials, Vol.8, No.11, pp. 1473-1488, 2020, DOI:10.32604/jrm.2020.011788 - 28 September 2020

Abstract The Chinese fir wood was impregnated using a cyclic increasingpressure method (CIPM) with phenolic prepolymers as the impregnating modifier. Unmodified Chinese fir and progressive increasing-pressure method (PIPM) impregnated Chinese fir were used as reference samples and were compared and analyzed. The product’s chemical structure, internal morphology, crystal structure, and heat resistance were characterized. The transversal and longitudinal sections showed better filling effects, so that it bore greater external loading and reduced the water storage space. CIPM infused more phenolic prepolymer into the Chinese fir. Not only producing more physical filling but also forming more hydrogen More >