Hot water (HW), green liquor (GL), and sodium chlorite (SC) pretreatments were used to pretreat sugarcane bagasse (SCB) spruce (SP) then prepare cellulose nanofibers (CNFs) through high-pressure homogenization explore the effect of physicochemical properties on thermal stability ultraviolet (UV) resistance performance CNF films. The results indicated that lignin content HW-pretreated CNFs was h...

Electrospun carbon nanofibers (CNFs) exhibit a decent CO2 sorption capacity and outstanding CO2/N2 selectivity. In this work, the rate as another practically relevant parameter for adsorption is analyzed different carbonization temperatures. Equilibration curves obtained from isotherms are discussed qualitatively quantitatively, employing empirical models pseudo-first- second-order reactions. T...

Magnetic carbon nanofibers (CNFs) carbonized at different temperatures were prepared from bacterial cellulose (BC) alloyed with magnetic fluid (MF) or Fe3O4 powder to facilitate the efficient use of biomass resources. The CNFs nanoparticles demonstrated high saturation magnetizations and coercivities up a carbonization temperature 800 °C. Iodine-treated BC showed substantial increase in char yi...

Abstract This study investigated the effects of carbon nanofibers (CNFs) content on hygrothermal ageing behaviors and mechanisms flax fiber-reinforced epoxy (FFRE) laminates. CNFs/FFRE laminates containing 0.25–2.0 wt% CNFs were fabricated immersed in distilled water for 180 days. Water absorption tensile as well thermodynamic properties investigated. The research results showed that played a s...

Carbonation of cement-based materials may lead to durability problems, so that it is necessary find a way reduce the effect carbonation on concrete durability. This study investigated effects cellulose nanofibrils (CNFs) carbonated materials. Two dosages CNFs were used prepare cement pastes and mortars. Before after accelerated (4 % CO 2 concentration 57 relative humidity), their microstructure...

In view of a great demand for paper-based technologies, nonwettable fibrous substrates with excellent durability have drawn much attention in recent years. In this context, the use of cellulose nanofibers (CNFs), the smallest unit of cellulosic substrates (5-20 nm wide and 500 nm to several microns in length), to design waterproof paper can be an economical and smart approach. In this study, an...

We show that the traces of recently introduced dynamic programming algorithms for #SAT can be used to construct structured deterministic DNNF (decomposable negation normal form) representations of propositional formulas in CNF (conjunctive normal form). This allows us prove new upper bounds on the complexity of compiling CNF formulas into structured deterministic DNNFs in terms of parameters su...

A negation normal form (NNF) is a circuit on unbounded fanin conjunction (AND) and disjunction (OR) gates, with fanin one negation (NOT) gates applied to input gates only. A NNF is decomposable (DNNF) if, for each AND node, the subcircuits rooted at the children of the node are variable disjoint. We prove an unconditional exponential lower bound on the DNNF size of CNF formulas; thus far, only ...

Rational design and construction of cathode materials with high ion transport coefficient electrical conductivity is great importance for improving the reaction kinetics Li-ion batteries (LIBs). Herein, we develop three-dimensional (3D) LiFePO4@reduced graphene oxide/carbon nanofibers (LiFePO4@rGO/CNFs) to serve as flexible cathodes LIBs. Through electrospinning technique combined subsequent py...