Materials Literature
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Tin (Sn) has been considered as one of the most promising anode materials for high-capacity lithium-ion batteries (LIBs) due to its high energy density, abundance, and environmentally benign nature. However, the problems of fast capacity fading at prolonged cycling and poor rate capacity hinder its practical use. Here…
Novel anion exchange membranes (AEMs), based on poly(phenylene oxide) (PPO) chains linked to pendant 1,2-dimethylimidazolium (DIm) functional groups, have been prepared for evaluation in alkaline polymer electrolyte membrane fuel cells (APEFCs). Successful functionalisation of the PPO chains was confirmed using 1H-NMR…
In this work we highlight recent work aimed at the characterization of halogen bonds. Here we discuss the origins of the σ-hole, the modulation of halogen bond strength by changing of neighboring chemical groups (i.e. halogen bond tuning), the performance of various computational methods in treating halogen bonds, and…
Extraction of hazardous heavy metals like As, Hg, Cd, Cr(VI), etc. for water purification is a great challenge. Exploiting the large surface area of graphene, in the present work, we have synthesized a UV-active 2,6-diamino pyridine–reduced graphene oxide (DAP–RGO) composite to remove Cr(VI) from acidic water solution…
Metal and metal oxide nanoparticles (NPs) have attracted considerable attention due to their excellent catalytic activities in various organic transformation reactions. However, their widespread application is limited because of their self-agglomeration in solution and the resulting reduced catalytic performance. Here…
We summarize our recent explorations of photophysical mechanisms that may be utilized in solar cells with power conversion efficiency theoretically exceeding the Shockley–Queisser limit. The dominant losses responsible for the Shockley–Queisser limit are below band-gap and thermalization (hot carrier) losses; together…
High activity towards oxidative coupling of methane and high selectivity for C2 hydrocarbons could be achieved over La2O3 nanorods with a large surface area, strong surface basic sites, electron deficient surface oxygen species and defined surface structure compared with La2O3 nanoparticles at low temperature.
New isostructural compounds [Ln7(3,5-DSB)4(OH)9(H2O)15]·4H2O (Ln = Eu, Gd and Tb) (DSB = 3,5-disulfobenzoate), with excellent optical properties, have been obtained and studied. By combining the lanthanide cations with the DSB ligand the formation of a singular heptanuclear [Ln7(OH)9]+12 metallic core secondary buildi…
Novel Ag nanoparticles (NPs) coated ZnO–SnO2 nanotubes (NTs, diameter ∼250 nm, wall thickness ∼20 nm) were fabricated using a facile electrospinning technique together with a seed-mediated growth procedure, and the amount of surface Ag NPs was systematically controlled. They were characterized by scanning electron mic…
TiO2 thin films were spin coated on soda-lime-silica glass substrates under identical conditions and then annealed for 2 h in air in the range of 300°-500 °C in increments of 50 °C. The mineralogical, morphological, optical, and photocatalytic properties then were assessed for the films. The techniques used were glanc…
We describe here the synthesis and electronic device properties of a new type of polycyclic aromatic molecule, the contorted octabenzocircumbiphenyl (c-OBCB). Contorted polycyclic aromatic hydrocarbons (PAHs) are promising small active molecules for organic devices. We present two different methods to synthesize c-OBC…
The ability of a protein to fold into unique functional state or to stay intrinsically disordered is encoded in its amino acid sequence. Both ordered and intrinsically disordered proteins (IDPs) are natural polypeptides that use the same arsenal of 20 proteinogenic amino acid residues as their major building blocks. T…
Organs-on-chips are microengineered in vitro tissue structures that can be used as platforms for physiological and pathological research. They provide tissue-like microenvironments in which different cell types can be co-cultured in a controlled manner to create synthetic organ mimics. Blood vessels are an integral pa…
A D–A conjugated polymer (PThTPTI) was developed by using a brand new pentacyclic aromatic lactam acceptor unit (TPTI). PThTPTI possesses good light absorption, thermal stability, and a deep HOMO level. PThTPTI/PC71BM cells afford an outstanding PCE up to 7.80%, with high Voc (0.87 V), Jsc (13.69 mA cm−2) and FF (65.6…
An ultrathin graphene membrane is a promising candidate for various applications such as gas separation, water purification, biosensors, etc. In this study, we investigate water transport mechanisms and hydrodynamic properties such as water flux, pressure variation, velocity, viscosity, slip length, etc. Due to the un…
Two unique 3D coordination polymers based on octahedral [Ln6] (Ln = Gd (), Dy ()) clusters as nodes were synthesized, exhibiting a novel (3,12)-connected topology with the symbol of (4(20)·6(26)·8(20))(4(3))4. The magnetic studies reveal that shows a -ΔSm = 46.6 J kg(-1) K(-1), falling among the largest values known t…
A novel sol–gel method was developed for the fabrication of a C-doped BiVO4 (BVOB@xC) photocatalyst with fine hierarchical structures templated from Papilio paris butterfly wings. The fine hierarchical butterfly wing structures of BVOB@xC were confirmed by the SEM and TEM observations. The doped carbon in BVOB@xC was…
In this paper, a novel flexible nanogenerator (FNG) made of zinc-oxide (ZnO) nanoparticles (NPs) and multiwall-carbon nanotubes (MW-CNTs) is presented. In this structure, ZnO NPs and MW-CNTs are mixed with polydimethylsiloxane (PDMS) uniformly to form an entire flexible nanogenerator. Serial tests illustrate that the…
The lack of efficient water-soluble two-photon absorption (TPA) photoinitiators has been a critical obstruction for three dimensional hydrogel microfabrications with high water load by two-photon induced polymerization (TPIP). In this paper, a series of cyclic benzylidene ketone-based two-photon initiators, containing…
Stir casting is one of the simplest ways of producing aluminum matrix composites (AMCs). This work focuses on the fabrication of AMCs reinforced with various weight percentages of SiC particulates and a constant weight percentage of Fly Ash by modified stir casting route. The wettability of SiC and Fly ash particles i…