Solar pyrolysis of agricultural waste has huge potential for sustainable production of fuel and chemical feedstock. In this paper, the kinetics, thermodynamics, and physical characterization of corn stover (CS) collected from Wyoming, USA was conducted with respect to solar pyrolysis. The kinetics and thermodynamics of the CS pyrolysis was analyzed in detail using the methods described by KAS (Kissinger-Akahira-Sunose) and FWO (Flynn-Wall-Ozawa), from which the activation energy, Gibbs energy, Arrhenius pre-exponential factor, enthalpy, and entropy were derived.14 other kinetics models based on reaction order, diffusion, nucleation, geometric contraction, power models were also examined, and models based on diffusion was found to be best suited. The CS was used for solar pyrolysis of biomass and the products were analyzed by mass spectroscopy, ICP-MS, GPC, micro-GC, and Elemental analyzer. The results show that CS is suitable for solar pyrolysis to produce chemicals and other fuels.
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http://dx.doi.org/10.1016/j.biortech.2019.03.049 | DOI Listing |
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December 2024
School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China.
The solar-driven catalytic recycling of plastics has recently emerged as a new frontier in industry. Nevertheless, its large-scale application requires the catalysts being capable of the strong absorption of visible and near-infrared light, strengthened photothermal efficiency, high activity and selective toward target product, enhanced stability, as well as easy separation from the products. In this work, magnetic Ni-MnO nanocatalyst (MN/C) is synthesized via the pyrolysis of metal-organic framework (MOF) for the photothermal catalytic recycling of polyethylene terephthalate (PET) to bis(2-hydroxyethyl) terephthalate (BHET).
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November 2024
Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, via Torino 155, 30172, Venice, Italy.
Herein, we report a study on pyrolysis bio-oil upgrading from leather shaving waste to dope in situ titania (TiO) with carbon dots (cds). The cds doped TiO exhibits remarkable activity as photocatalyst under solar light for the direct conversion of carbon dioxide (CO) and water vapor (HO) to methane (CH). Morover, the catalytic activity also increased under uv radiation.
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October 2024
Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher Education 576104 India
Intrinsic defects in semiconductor thin films play a significant role in determining their optoelectronic properties. In this work, we investigated the impact of aluminium doping on the intrinsic defects and, thereby, the optoelectronic properties of CuO thin films deposited spray pyrolysis. Doping considerably influenced the inherent defects of CuO thin films.
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November 2024
College of Physics and Energy, Fujian Provincial Solar Energy Conversion and Energy Storage Engineering Technology Research Center, Fujian Normal University, Fuzhou, 350117, China.
To address the significant challenges encountered by silicon-based anodes in high-performance lithium-ion batteries (LIBs), including poor cycling stability, low initial coulombic efficiency (ICE), and insufficient interface compatibility, this work innovatively prepares high-performance Si/SiOx@F-C composites via in situ coating fluorine-doping carbon layer on Si/SiOx surface through high-temperature pyrolysis. The Si/SiO@F-C electrodes exhibit superior LIB performance with a high ICE of 79%, exceeding the 71% and 43% demonstrated by Si/SiO@C and Si/SiO, respectively. These electrodes also show excellent rate performance, maintaining a capacity of 603 mAhg even under a high current density of 5000 mAg.
View Article and Find Full Text PDFWaste Manag
December 2024
Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, 135 Xingang Xi Road, Guangzhou 510275, PR China.
To achieve the global carbon neutrality commitment, photovoltaics, a clean and renewable source of energy, is increasingly deployed. Photovoltaic panels are core components of photovoltaic systems. As these panels reach the end of their life, recovering the photovoltaic waste becomes crucial.
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