Results 141 to 150 of about 7,697,870 (306)

MetalCenter‐Dependent Selectivity Divergence in MN4 Single‐Atom Catalysts for Aerobic HMF Oxidation

open access: yesAdvanced Science, EarlyView.
Two single‐atom catalysts with M‐N4 configurations (FeN4 and CoN4) were developed for selective HMF oxidation. FeN4 achieves 93.9% selectivity toward FFCA via superoxide anions (O2•−), while CoN4 preferentially produces FDCA through hydroxyl radicals (•OH). DFT calculations reveal that distinct adsorption energies and charge redistribution at the metal
Haoyu Wang   +6 more
wiley   +1 more source

Cinética da gaseificação do bagaço de laranja e serragem de madeira com CO2 [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Química, Florianópolis, 2013.A valorização de resíduos agroindustriais por meio de processos de conversão termoquímica para a ...
Altamar Consuegra, Astrid Del S.
core  

Co-Pyrolysis Biochar Derived from Rape Straw and Phosphate Rock: Carbon Retention, Aromaticity, and Pb Removal Capacity

open access: yes, 2019
Biochar has been recognized as a promising tool for carbon sequestration and heavy metal removal from contaminated water. To promote the application of biochar in environment improvement, the effects of exogenous minerals on carbon sequestration and Pb ...
Yonghong Liu   +13 more
core   +1 more source

Single‐Particle Mid‐Infrared Photothermal Imaging Reveals Hidden Heterogeneity in Real‐World Micro‐ and Nanoplastics

open access: yesAdvanced Science, EarlyView.
Mid‐infrared photothermal imaging enables multidimensional profiling of micro‐ and nanoplastics in bottled water. A total of 9.9 × 104 particles L−1 is detected, with 64% in the nanoscale regime. Spectral evolution, including peak narrowing and band shifts, reveals local chain reorganization in polyethylene terephthalate (PET), highlighting intrinsic ...
Xinyu Deng   +4 more
wiley   +1 more source

Effect of CaO nanocatalyst on bio-oil production from algae and date seeds via microwave-assisted co-pyrolysis

open access: yesCommunications in Science and Technology
One of the most effective ways of managing solid waste is microwave-assisted pyrolysis. This research used MW-assisted catalytic co-pyrolysis to extract essential oils from algae powder (AP) and date seed (DS).
Mustafa Al Dulaimi   +7 more
doaj   +1 more source

A Triple‐Nanoparticle System for Controlled Graphene Nanosheet Stacking: Enabling K/Na‐Ion Battery Anodes with Ultra‐Fast Charging Exceeding Petroleum Vehicle Refueling

open access: yesAdvanced Science, EarlyView.
ABSTRACT Large‐ion (K, Na) battery systems mitigate uneven global lithium distribution, while their ability to attain recharge time shorter than refueling would remove the final barrier for secondary batteries to replace petroleum vehicles. However, their large‐ion chemistry makes ultra‐fast charging an even significant challenge.
Shukai Ding   +12 more
wiley   +1 more source

Thermo-catalytic co-pyrolysis of recovered heavy oil and municipal plastic wastes

open access: yes, 2016
WOS: 000370105000031In this work municipal plastic wastes were co-pyrolyzed together with waste plastic derived heavy oil at 500 degrees C in a stirred batch reactor using beta-zeolite, y-zeolite and m-Ni-Mo-catalysts.
Miskolczi, Norbert, Ateş, Funda
core   +1 more source

Advances and Perspectives in Graphene‐Based Quantum Dots Enabled Neuromorphic Devices

open access: yesAdvanced Science, EarlyView.
Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Yulin Zhen   +9 more
wiley   +1 more source

Synergistic effects in co-pyrolysis of lignin and low-density polyethylene (LDPE): Impact on biochar, bio-oil, and gaseous products

open access: yesIndustrial Crops and Products
The technology for co-pyrolysis of biomass and plastics represents a promising strategy for waste recycling and resource valorization. Kinetic analyses using the Flynn-Wall-Ozawa (FWO) and Kissinger-Akahira-Sunose (KAS) models revealed that the average ...
Xiao Yang   +5 more
doaj   +1 more source

Solid Ethanol as a Renewable, Low‐Toxicity, Electron‐Beam Direct Write, and Biomedical Material

open access: yesAdvanced Science, EarlyView.
3D ice lithography (3DIL) enables the fabrication of intricate submicrometer objects using ethanol as a renewable starting material. This study combines process optimization, structural and material analysis, and biomedical applications, from cell culture scaffolds to the patterning of neurostimulation electrodes, demonstrating performance in both in ...
Bruno Perdigão   +16 more
wiley   +1 more source

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