This review provides recent progress on novel methods to prepare electrodes and gate dielectrics for 2D material field-effect transistors.

The stilbene ligand-based metal–organic frameworks (MOFs) were used for dye adsorption and nitrobenzene sensing. Despite the low adsorption capacity, the MOFs showed unique selectivity in dye adsorption. In addition, the MOFs also show fluorescence-based sensing ability toward organic analytes. Depending on the structure of MOFs, the MOF shows different selectivity and sensitivity as a sensor.

A Mn^IVO species with negatively charged ligand was investigated in order to determine if it employs excited state reactivity (ESR) during a C–H activation reaction. It is found that it indeed utilizes ESR, but the charge seems to be less important than the rigidity of the ligand.

This article describes forward and backward intermolecular charge transfer (CT). Density functionals with a high fraction of Hartree–Fock exchange, which is necessary to reproduce high-level ab initio calculations shows unreasonable reversal between two CT states. The physical origin of such weird behavior is analyzed. Constrained density functional theory calculations using M06-HF functional are suggested to provide accurate energies and correct orders.

Scanning electrochemical microscopy was applied to investigate electron transfer dynamics of the two lithium peroxide species, from which a much faster surface electron transfer was observed from lithium peroxide toroids compared to that of thin films. The difference is postulated to stem from the difference in the formation mechanism of the two species.

A benzo[g]coumarin-benzothiazole-based fluorescent probe (BCB-1) is introduced for the sensing of Aβ plaques that are red-emitting, highly selective and sensitive, and bio-applicable.

A ligand containing a non-coordinating tetrazole pendant moiety was prepared for use in proton-conducting metal–organic frameworks (MOFs). The effect of the pK_a of the ligand on proton conduction and the proton conduction mechanism were investigated and compared with MOFs containing other acidic pendant groups.

The distinct difference in solid-state emission efficiency between two spiro[fluorene–carbazole]–bearing o-carboranyl luminophores showed that the electronic environment of the scaffold moiety the o-carborane cage is attached can significantly affect controlling intramolecular charge transfer-based radiative decay.

The asymmetric phase-transfer catalysis enabled mechanistically intriguing reaction manifolds for enantioselective halogenations by exploiting highly ordered noncovalent interactions between the chiral catalyst and the reactants. This review provides a compilation of the successful examples over the past decade with brief comments on the essential mechanistic rationales.

One-pot reaction consisting of Fe(Pc)-catalyzed aerobic oxidation of acylhydrazides and P(NMe₂)₃-mediated annulation of the in-situ generated N-acyldiazenes with isothiocyanates was developed for the synthesis of 2-imino-1,3,4-thiadiazolines. It is notable that the developed protocol showed broad substrate scope and could be easily scaled up.

Trace metal dopants are known to promote the oxygen reduction reaction (ORR) performance of PtNi-based nanocatalyst. In this work, however, we found that excess dopant increases the oxygen-binding strength at the catalytic site, thereby decreasing ORR performance.

This is the first study to report the synthesis of zeotypes containing Cu(I) through the reduction of Cu(II) to Cu(I) in [CuO₄]²⁻ in the SGU-29 framework using a hydrogen/argon gas mixture. The reduced SGU-29 (rSGU-29) proved to be an effective catalyst by successfully reducing 4-nitrophenol to 4-aminophenol, providing 99% conversion.

The Al₂O₃–EPP composites are incorporated onto the PI separator via dip-coating process in order to improve electrochemical properties of PI separator. The cell cycled with the Al₂O₃–EPP incorporated PI separator exhibits stable cycling behavior because Al₂O₃–EPP composites effectively prevent internal short circuit in the cell.

P doping using the proper amount of P source is a promising approach for the preparation of P-doped Pt nanostructures without shape transformation of pristine Pt nanostructures, which holds a high potential within the water electrolysis and fuel oxidation reaction.

Pyrazolonaphthyridine (PzNPy) ligands facilitate the Pd-catalyzed CH acetoxylation of arenes in the presence of a hypervalent iodine oxidant. The use of hexafluoroisopropanol (HFIP) as the solvent further increases the conversion of the ligand-promoted sp² CH acetoxylation. These results illustrate the beneficial role of the bidentate nitrogen ligands in Pd-catalyzed oxidative reactions, expanding their scope beyond CC bond formation.

A series of 4-NEt₂-appended salen−indium complexes with different bridging groups were prepared to elucidate the electronic effect of bridging units on the photophysical properties. The emission color of the 4-NEt₂-substituted salen−In complexes could be systematically tuned by manipulating the electronic effect of the bridging units.

An efficient method was developed for MoS₂ nanostructures by controlling the growth time through chemical vapor deposition. The surface morphologies could be confirmed with microscopic analysis. The synthesized nanostructures exhibited quantum confinement effect depending on their dimension, resulting in blue shift of excitons.

The trivalent RE³⁺-doping for the Zintl phase Yb_5 − xRE_xAl₂Sb₆ (RE = Pr, Nd, Sm) system has enhanced the band degeneracies and generated a resonance peak near E_F implying the increased effective mass, and the temperature-dependent electrical transport property measurements proved that Seebeck coefficients were indeed improved.

A sustainable aerobic oxidation of alcohols to ketones and carboxylic acids has been developed by using 2,4,6-triphenylpyrylium tetrafluoroborate as organophotocatalyst and molecular oxygen as oxidant thorough the generation of key reactive oxygen species, superoxide (O₂^•−) and singlet oxygen (¹O₂).

A H₂S-selective fluorescent turn-on probe was developed based on azide-containing naphthalimide derivative. The azide group was selectively converted to a primary amine by H₂S in aqueous solution, resulting in a fluorescence at 550 nm with chromogenic change. It was suggested that the probe can be utilized to detect H₂S under various biological and environmental assay conditions.