Shangqi Sun^1,2,3,*, Lingchao Xiao³, Qifeng Qian³, Yunfeng Deng¹

Energy Engineering, Vol.121, No.10, pp. 2769-2776, 2024, DOI:10.32604/ee.2024.052680

Abstract Solving intrinsic structural problems such as low conductivity is the main challenge to promote the commercial application of Li₂TiSiO₅. In this study, Li₂TiSiO₅ is synthesized by the sol-gel method, and the surface modification of Li₂TiSiO₅ is carried out at different temperatures using low-temperature plasma to enhance its lithium storage performance. The morphological structure and electrochemical tests demonstrate that plasma treatment can improve the degree of agglomeration. The peak position of the plasma-treated Li₂TiSiO₅ is shifted to a lower angle, and the shift angle increases with increasing sputtering power. Li₂TiSiO₅ after 300 W bombardment shows excellent capacity (144.7 mA·hg⁻¹ More >

Lianyuan Ji¹, Mingchen Shi¹, Zengkai Feng², Hui Yang^1,*

Journal of Renewable Materials, Vol.12, No.2, pp. 259-274, 2024, DOI:10.32604/jrm.2023.030599

Abstract

Cobalt sulphides attract much attention as anode materials for Li-ion batteries (LIBs). However, its poor conductivity, low initial column efficiency and large volume changes during cycling have hindered its further development. Herein, novel interlaced CoS nanosheets were firstly prepared on Carbon Fiber Cloth (CFC) by two hydrothermal reactions followed with carbon coating via carbonizing dopamine (CoS NS@C/CFC). As a freestanding anode, the nanosheet structure of CoS not only accommodates the volume variation, but also provides a large interface area to proceed the charge transfer reaction. In addition, CFC works as both a three-dimensional skeleton and an

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RABIRANJAN MURMU^a,b, DEBASHIS ROY^a, HAREKRUSHNA SUTAR^b

Journal of Polymer Materials, Vol.40, No.3-4, pp. 125-139, 2023, DOI:10.32381/JPM.2023.40.3-4.1

Abstract A one dimensional isothermal model is proposed by modelling the kinetics of methanol transport at anode flow channel (AFC), membrane and cathode catalyst layer of direct methanol fuel cell (DMFC). Analytical model is proposed to predict methanol cross-over rate through the electrolyte membrane and cell performance. The model presented in this paper considered methanol diffusion and electrochemical oxidation at the anode and cathode channels. The analytical solution of the proposed model was simulated in a MATLAB environment to obtain the polarization curve and leakage current. The effect of methanol concentration on cell voltage and leakage More >

Jiahao Wang¹, Jie Zhou², Zhengping Zhao^2,*, Feng Chen¹, Mingqiang Zhong¹

Journal of Renewable Materials, Vol.11, No.8, pp. 3309-3332, 2023, DOI:10.32604/jrm.2023.027278

Abstract Three-dimensional C/SiOx nanofiber anode was prepared by polydimethylsiloxane (PDMS) and polyacrylonitrile (PAN) as precursors via electrospinning and freeze-drying successfully. In contrast to conventional carbon covering Si-based anode materials, the C/SiOx structure is made up of PAN-C, a 3D carbon substance, and SiOx loading steadily on PAN-C. The PAN carbon nanofibers and loaded SiOx from pyrolyzed PDMS give increased conductivity and a stable complex structure. When employed as lithium-ion batteries (LIBs) anode materials, C/SiOx-1% composites were discovered to have an extremely high lithium storage capacity and good cycle performance. At a current density of 100 mA/g, More > Graphic Abstract

Le Anh Duc^a , Nguyen Hay^a, Pham Van Kien^b,*

Frontiers in Heat and Mass Transfer, Vol.18, pp. 1-7, 2022, DOI:10.5098/hmt.18.44

Abstract This study determined the most appropriate thin layer drying model, the effective moisture diffusivity and the activation energy of moisture within Ganoderma lucidum in radio frequency (RF) assisted heat pump drying method. The thin layer drying experiments were conducted with input drying parameters such as: drying temperature of 40, 45 and 50°C and RF power of 0.65, 1.3 and 1.95 kW. In order to select a suitable form of drying curve, seven different thin layer drying models (Lewis, Page, Modified Page, Henderson and Pabis, Verma, Midilli, and Wang and Singh) were fitted to the experimental More >

Jiaqian Lei, Yaojun Zhang^*, Panyang He

Journal of Renewable Materials, Vol.9, No.12, pp. 2277-2289, 2021, DOI:10.32604/jrm.2021.015824

Abstract Geopolymers have been developed to various catalysts due to their advantages. However, low conductivity restricts their application in the electrocatalysis field. In this study, an α-Fe₂O₃/circulating fluidized bed fly ash based geopolymer (CFAG) composite anode was fabricated using a facile dip-coating method by loading α-Fe₂O₃ in the matrix of CFAG. The effects of α-Fe₂O₃ content on the composition, surface morphology and electrochemical performance of α-Fe₂O₃/CFAG composite anode were investigated. The X-ray diffraction (XRD) and scanning electron microscope (SEM) results demonstrated that α-Fe₂O₃ was successfully inlaid with the surface of amorphous CFAG matrix. The electrochemical measurements indicated that α-Fe₂O₃/CFAG More > Graphic Abstract

Nishit Savla¹, Raksha Anand², Soumya Pandit^2,*, Ram Prasad^3,*

Journal of Renewable Materials, Vol.8, No.12, pp. 1581-1605, 2020, DOI:10.32604/jrm.2020.011803

Abstract Microbial fuel cells (MFCs) are an attractive innovation at the nexus of energy and water security for the future. MFC utilizes electrochemically active microorganisms to oxidize biodegradable substrates and generate bioelectricity in a single step. The material of the anode plays a vital role in increasing the MFC’s power output. The anode in MFC can be upgraded using nanomaterials providing benefits of exceptional physicochemical properties. The nanomaterials in anode gives a high surface area, improved electron transfer promotes electroactive biofilm. Enhanced power output in terms of Direct current (DC) can be obtained as the consequence More >

Thatsanee Luangharn^1,2,3,4, Samantha C. Karunarathna^1,3, Peter E. Mortimer^1,4,*, Kevin D. Hyde^3,5, Jianchu Xu^1,3,4,*

Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 743-764, 2020, DOI:10.32604/phyton.2020.09690

Abstract Ganoderma is a genus of medicinally and economically important mushrooms in the family Ganodermataceae. Ganoderma species are popular medicinal mushrooms and their health benefits are well-documented. Ganoderma is a cosmopolitan genus that is widely distributed in both tropical and temperate regions. This genus is characterized by its unique laccate or non-laccate species with double-walled basidiospores. Here, we report on eight collections of G. gibbosum collected during surveys in Kunming, Yunnan Province, China. The specimens are described and illustrated based on macro- and micro-morphological characteristics. Total DNA of the eight G. gibbosum strains were extracted using the Biospin Fungal More >

Chen Minjiang, Fang Yu, Huanchao Yang, Haiqing Zhou, Lianfeng Sun

The International Conference on Computational & Experimental Engineering and Sciences, Vol.18, No.1, pp. 25-26, 2011, DOI:10.3970/icces.2011.018.025

Abstract Some of our recent experimental works on carbon nanotube and graphenes are presented in this work. There are mainly three parts, which are explained in more details as the followings:
1. Single-walled carbon nanotube crystal: a new condensed form of SWNTs-crystal of SWNTs is obtained by using a series of diamond wire drawing dies. X-ray experiment indicates that the SWNTs arrange in a triangular lattice with a constant of 19.6 angstrom and the properties of SWNT crystal are studied.
2. SWNT energy conversion devices and self-powered system: We show that the water inside SWNT… More >