Carbon capture is an important strategy and is implemented to achieve the goals of CO_(2)reduction and carbon *** a high energy-efficient technology,membrane-based separation plays a crucial role in CO_(2)*** is urgen...
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Carbon capture is an important strategy and is implemented to achieve the goals of CO_(2)reduction and carbon *** a high energy-efficient technology,membrane-based separation plays a crucial role in CO_(2)*** is urgently needed for membrane-based CO_(2)capture to develop the high-performance membrane materials with high permeability,selectivity,and ***,ultrapermeable carbon molecular sieve(CMS)membranes are fabricated by py roly zing a finely-engineered benzoxazole-containing copolyimide precursor for efficient CO_(2)*** microstructure of CMS membrane has been optimized by initially engineering the precursor-chemistry and subsequently tuning the pyrolysis *** insights into the structure-property relationship of CMSs are provided in detail by a combination of experimental characterization and molecular *** demonstrate that the intrinsically high free volume environment of the precursor,coupled with the steric hindrance of thermostable contorted fragments,promotes the formation of loosely packed and ultramicroporous carbon structures within the resultant CMS membrane,thereby enabling efficient CO_(2)discrimination via size sieving and *** membrane achieves an ultrahigh CO_(2)permeability,good selectivity,and excellent *** one month of long-term operation,the CO_(2)permeability in the mixed gas is maintained at 11,800 Barrer,with a CO_(2)/N_(2)selectivity exceeding *** study provides insights into the relationship between precursor-chemistry and CMS performance,and our ultrapermeable CMS membrane,which is scalable using thin film manufacturing,holds great potential for industrial CO_(2)capture.
Inspired by the Mn4CaO5cluster at the catalytic water oxidation center of natural enzymes, artificial multinuclear metal clusters have attracted significant attention as water oxidation catalysts due to their synergis...
Inspired by the Mn4CaO5cluster at the catalytic water oxidation center of natural enzymes, artificial multinuclear metal clusters have attracted significant attention as water oxidation catalysts due to their synergistic interactions among multiple metal atoms [1–8]. Atomically precise metal cluster catalysts serve as model systems for uncovering the synergistic mechanisms of the oxygen evolution reaction（OER） [9–14].
Lithium （Li） deposition and nucleation at solid electrolyte interphase （SEI） is the main origin for the capacity decay in Li metal batteries （LMBs）.SEI conversion with enhanced electrochemical and mechanical pro...
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Lithium （Li） deposition and nucleation at solid electrolyte interphase （SEI） is the main origin for the capacity decay in Li metal batteries （LMBs）.SEI conversion with enhanced electrochemical and mechanical properties is an effective approach to achieve uniform nucleation of Li+and stabilize the lithium metal ***,complex interfacial reaction mechanisms and interface compatibility issues hinder the development of SEI conversion strategies for stabilizing lithium metal ***,we presented the release of I3-in–NH2-modified metal–organic frameworks for a Li metal surface SEI phase conversion ***–NH2group in MOF pores induced the formation of I3-from I2,which was further spontaneously reacted with inactive Li2O transforming into high-performance LiI and ***,theoretical calculation provided deeply insight into the unique reconstructed interfacial formation and electrochemical mechanism of rich LiI and *** a result,the Li+deposition and nucleation were improved,facilitating the transport kinetics of Li+and inhibiting the growth of lithium *** assembled solid-state Li||LiFePO4full cells exhibited superior long-term stability of 800 cycles and high Coulombic efficiency （>99%）,Li||LiNi0.8Co0.1Mn0.1O2pouch cell also displayed superior practical performance over 200 cycles at 2 C,high loading of 5 mg cm-2and safety *** innovative SEI design strategy promotes the development of high-performance solid-state Li metal batteries.
The presence of dye contamination in waterbodies has emerged as a widespread environmental issue and poses a significant threat to the well-being of humans and the aquatic ecosystem. Nanotechnology has emerged as a pr...
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Carbon materials are widely recognized as highly promising electrode materials for various energy storage system *** tar residues(CTR),as a type of carbon-rich solid waste with high value-added utilization,are crucial...
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Carbon materials are widely recognized as highly promising electrode materials for various energy storage system *** tar residues(CTR),as a type of carbon-rich solid waste with high value-added utilization,are crucially important for the development of a more sustainable *** this study,we employed a straightforward direct carbonization method within the temperature range of 700-1000℃to convert the worthless solid waste CTR into economically valuable carbon materials as anodes for potassium-ion batteries(PIBs).The effect of carbonization temperature on the microstructure and the potassium ions storage properties of CTR-derived carbons(CTRCs)were systematically explored by structural and morphological characterization,alongside electrochemical performances *** on the co-regulation between the turbine layers,crystal structure,pore structure,functional groups,and electrical conductivity of CTR-derived carbon carbonized at 900℃(CTRC-900H),the electrode material with high reversible capacity of 265.6m Ah·g^(-1)at 50 m A·g^(-1),a desirable cycling stability with 93.8%capacity retention even after 100 cycles,and the remarkable rate performance for PIBs were ***,cyclic voltammetry(CV)at different scan rates and galvanostatic intermittent titration technique(GITT)have been employed to explore the potassium ions storage mechanism and electrochemical kinetics of *** indicate that the electrode behavior is predominantly governed by surface-induced capacitive processes,particularly under high current densities,with the potassium storage mechanism characterized by an“adsorption-weak intercalation”*** work highlights the potential of CTR-based carbon as a promising electrode material category suitable for high-performance PIBs electrodes,while also provides valuable insights into the new avenues for the high value-added utilization of CTR.
Covalent organic frameworks(COFs),as an emerging class of crystalline porous polymeric material,process large surface area,ordered pore structure,good biocompatibility,excellent chemical stability,and low toxicity,mak...
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Covalent organic frameworks(COFs),as an emerging class of crystalline porous polymeric material,process large surface area,ordered pore structure,good biocompatibility,excellent chemical stability,and low toxicity,making it an excellent candidate for *** this article,the recent research progress of COFs was reviewed in the antibacterial *** introduced the antibacterial potential of COF materials themselves,covering framework structures and pore ***,the synergistic antibacterial effects of COF composites were discussed,which were formed by the combination of COF with other *** addition,the excellent performances of COFs as nanozymes were investigated in antibacterial ***,COF-based high-efficiency antibacterial agents face great challenges and prospects in practical *** review will provide new COF-based methods for resolving drug-resistant bacterial issues.
Methylene blue, a widely used dye in various industries, poses significant environmental and health risks when released into water bodies. The experimental methods, while effective for studying the adsorption of dye o...
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In order to solve the shortcomings of MoO3/γ-Al2O3 catalyst for sulfur-resistant methanation, a segmented plasma fluidized bed reactor was designed, where plasma discharge zone and the fluidization zone were separate...
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Idesia oil-based imidazoline derivative (IOID) as a corrosion inhibitor was synthesized through the solvent dehydration method for Q235 steel in HCl solution. It was characterized by FTIR, and the corrosion inhibition...
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The study investigated the oxidation behavior of T91 steel modified with Al(T91-Al)and Si(T91-Si)in lead-bismuth eutectic(LBE)at 450 ℃ under oxygen-saturated conditions(10-7-10-8 wt.％)and oxygen-controlled condition...
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The study investigated the oxidation behavior of T91 steel modified with Al(T91-Al)and Si(T91-Si)in lead-bismuth eutectic(LBE)at 450 ℃ under oxygen-saturated conditions(10-7-10-8 wt.％)and oxygen-controlled conditions(3.2 ×10-4 wt.％).Advanced characterization techniques were employed to under-stand the thermodynamic and kinetic mechanisms of enhanced oxidation properties of the modified T91 *** results indicate that the oxidation resistance of the materials follows this order:T91＜T91-Al＜***,the oxidation resistance of T91-Si material exhibited minimal correlation with dissolved *** oxygen-controlled conditions,the oxide film of T91 and T91-Al was attacked and broken by LBE,with the former eventually peeling *** contrast,both materials showed significant ox-ide film thickening,except T91-Si under oxygen-saturated *** addition of Al improved the quality of the inner oxide film on T91-Al by generating Al2O3,thereby slowing down the diffusion of Fe from the matrix and enhancing oxidation ***,Si actively participated in the oxidation process of T91-Si,slowing down the diffusion of Fe,and facilitating the diffusion of Cr,thereby strength-ening the oxide film ***,the oxide thickness of T91-Si material was only 24％of T91 and 35％of T91-Al under saturated oxygen conditions.
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