Unveiling the potential of MXene-fabricated catalysts: an effective approach for H generation from water splitting.

Hydrogen has enough potential and can be successfully used as an alternative to the conventional fuel. It can be successfully produced from water that is not only a sustainable source but exists everywhere on earth. Additionally, its combustion releases water that is quite safe and environment friendly.

Palladium-anchored donor-flexible pyridylidene amide (PYA) electrocatalysts for CO reduction.

The conversion of CO into CO as a substitute for processing fossil fuels to produce hydrocarbons is a sustainable, carbon neutral energy technology. However, the electrochemical reduction of CO into a synthesis gas (CO and H) at a commercial scale requires an efficient electrocatalyst. In this perspective, a series of six new palladium complexes with the general formula [Pd(L)(Y)]Y, where L is a donor-flexible PYA, ,-bis(1-ethylpyridin-4(1)-ylidene)pyridine-2,6-dicarboxamide, ,-bis(1-butylpyridin-4(1)-ylidene)pyridine-2,6-dicarboxamide, or ,-bis(1-benzylpyridin-4(1)-ylidene)pyridine-2,6-dicarboxamide, and Y = OAc or Cl, were utilized as active electrocatalysts for the conversion of CO into a synthesis gas.

NiCoO nano-needles as an efficient electro-catalyst for simultaneous water splitting and dye degradation.

Developing an efficient and non-precious bifunctional catalyst capable of performing water splitting and organic effluent degradation in wastewater is a great challenge. This article reports an efficient bifunctional nanocatalyst based on NiCoO, synthesized using a simple one-pot co-precipitation method. We optimized the synthesis conditions by varying the synthesis pH and sodium dodecyl sulfate (SDS) concentrations.

Synergism of Co/Na in BiVO microstructures for visible-light driven degradation of toxic dyes in water.

In this work, we report a synergism of Co/Na in Co@Na-BiVO microstructures to boost the photocatalytic performance of bismuth vanadate (BiVO) catalysts. A co-precipitation method has been employed to synthesize blossom-like BiVO microstructures with incorporation of Co and Na metals, followed by calcination at 350 °C. The structure and morphology of the as-prepared photocatalysts are characterized by XRD, Raman, FTIR, SEM, EDX, AFM, UV-vis/DRS and PL techniques.

One-pot hydrothermal synthesis of a carbon quantum dot/CaFeO hybrid nanocomposite for carcinogenic Congo red dye degradation.

Semiconductor materials show a restricted degradation response to organic pollutants due to limited photocatalytic activity under visible light. Therefore, researchers have devoted much attention to novel and effective nanocomposite materials. For the first time, herein, a novel nano-sized semiconductor calcium ferrite modified by carbon quantum dots (CaFeO/CQDs) photocatalyst is fabricated simple hydrothermal treatment for the degradation of aromatic dye using a visible light source.

Correction: An investigation of the structural, mechanical, electronic, optical, and thermoelectric characteristics of novel double perovskite halides CsCaSnX (X = Cl, Br, I) for optically influenced RRAM devices.

[This corrects the article DOI: 10.1039/D3RA00078H.].

An investigation of the structural, mechanical, electronic, optical, and thermoelectric characteristics of novel double perovskite halides CsCaSnX (X = Cl, Br, I) for optically influenced RRAM devices.

Hybrid lead halide perovskites have been considered as promising candidates for a large variety of optoelectronic applications. By exploring novel combinations of lead-free double perovskite halides, it is possible to find a suitable replacement for poisonous lead halide perovskites, enhancing electronic and optical response for their application as optically-influenced resistive switching random access memory (RRAM). In this work, the structural, mechanical, elastic, electronic, optical, and thermoelectric characteristics of lead-free double halide perovskites were investigated by Vienna initio simulation package (VASP) to explore their role in RRAM.

Growth of villi-microstructured bismuth vanadate (Vm-BiVO) for photocatalytic degradation of crystal violet dye.

In this work, villi-microstructured Au-loaded BiVO photocatalysts were successfully synthesized by hydrothermal method. The as-synthesized photocatalysts were characterized by XRD, Raman, UV-Vis-DRS, PL, SEM and EDX techniques. The presence of metallic Au on the surface of Vm-BiVO support boosts the photocatalytic performance to degrade toxic crystal violet dye.

Synthesis, spectroscopic, SC-XRD/DFT and non-linear optical (NLO) properties of chromene derivatives.

In the present study, we reported the efficient synthesis of novel, heterocyclic, coumarin-based pyrano-chromene derivatives, 2-amino-8-methyl-5-oxo-4-[2-(2-oxo-2-chromen-3-ylmethoxy)-phenyl]-4,5-pyrano[3,2-]chromene-3-carbonitrile (4a) and 2-amino-8-methyl-5-oxo-4-[2-(2-oxo-2-chromen-3-ylmethoxy)-phenyl]-4,5-pyrano[3,2-]chromene-3-carboxylic acid methyl ester (4b). The chemical structures of synthesized compounds were resolved by employing various spectroscopic techniques like UV-Vis, FT-IR, H & C NMR, and single crystal X-ray diffraction (SC-XRD) analysis. The compounds; 4a and 4b, with appealing π-bonded skeleton were further analyzed in terms of their electronic and structural aspects using an integral approach of density functional theory (DFT) and time-dependent DFT (TD/DFT).

Zirconium-based cubic-perovskite materials for photocatalytic solar cell applications: a DFT study.

The structural, electronic, optical, and mechanical characteristics of the cubic inorganic perovskites XZrO (X = Rb and K) based on Rb and K were studied using Cambridge Serial Total Energy Package (CASTEP)-based density functional theory (DFT) the ultrasoft pseudo-potential (USP) plane wave and generalized gradient approximation (GGA)-Perdew-Burke-Ernzerhof (PBE) exchange-correlation functional. The measured lattice parameters are 3.55 Å and 4.

Improved resistive switching characteristics of a multi-stacked HfO/AlO/HfO RRAM structure for neuromorphic and synaptic applications: experimental and computational study.

Atomic Layer Deposition (ALD) was used for a tri-layer structure (HfO/AlO/HfO) at low temperature over an Indium Tin Oxide (ITO) transparent electrode. First, the microstructure of the fabricated TaN/HfO/AlO/HfO/ITO RRAM device was examined by the cross-sectional High-Resolution Transmission Electron Microscopy (HRTEM). Then, Energy Dispersive X-ray Spectroscopy (EDS) was performed to probe compositional mapping.