Enhanced Water Splitting with Sulfur-Doped Nickel Ferrite for Green Hydrogen at Industrial Current Density.

The main challenge for water electrolysis is that continuous and effective hydrogen evolution at high current densities is unattainable due to the quick degradation of performance that occurs with extended large-current operation. In this work, sulfur-doped nickel ferrite nanocomposites were prepared using simple hydrothermal method with the objective of improving electrocatalytic green hydrogen production at industrial current densities. X-ray diffraction (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS) were used to analyse the crystalline structure, morphology, and chemical composition of the synthesised nanocomposites.

Fabrication of a wearable and foldable photodetector based on a WSe-MXene 2D-2D heterostructure using a scalable handprint technique.

Several studies on semiconductor material-based single-band, high-performance photosensitive, and chemically stable photodetectors are available; however, the lack of broad spectral response, device flexibility, and biodegradability prevents them from being used in wearable and flexible electronics. Apart from that, the selection of the device fabrication technique is a very crucial factor nowadays in terms of equipment utilization and environmental friendliness. This report presents a study demonstrating a straightforward solvent- and equipment-free handprint technique for the fabrication of WSe-TiCT flexible, biodegradable, robust, and broadband (Vis-NIR) photodetectors.

Self-Supported Mn-NiSe Electrocatalysts for Water and Urea Electrolysis for Energy-Saving Hydrogen Production.

Recently, there has been a huge research interest in developing robust, efficient, low-cost, and earth-abundant materials for water and urea electrolysis for hydrogen (H) generation. Herein, we demonstrate the facile hydrothermal synthesis of self-supported Mn-NiSe on Ni foam for overall water splitting under wide pH conditions. With the optimized concentration of Mn in NiSe, the overpotential for hydrogen evolution, oxygen evolution, and urea oxidation is significantly reduced by an enhanced electrochemical active surface area.

2D Monolayer Catalysts: Towards Efficient Water Splitting and Green Hydrogen Production.

A viable alternative to non-renewable hydrocarbon fuels is hydrogen gas, created using a safe, environmentally friendly process like water splitting. An important role in water-splitting applications is played by the development of two-dimensional (2D) layered transition metal chalcogenides (TMDCs), transition metal carbides (MXenes), graphene-derived 2D layered nanomaterials, phosphorene, and hexagonal boron nitride. Advanced synthesis methods and characterization instruments enabled an effective application for improved electrocatalytic water splitting and sustainable hydrogen production.

Synergistically Driven CoCr-LDH@VNiS as a Bifunctional Electrocatalyst for Overall Water Splitting and Flexible Supercapacitors.

Utilizing alternative energy sources to fossil fuels has remained a significant issue for humanity. In this context, efficient earth-abundant bifunctional catalysts for water splitting and energy storage technologies like hybrid supercapacitors have become essential for achieving a sustainable future. Herein, CoCr-LDH@VNiS was synthesized by hydrothermal synthesis.

Synergistic 2D MoSe@WSe nanohybrid heterostructure toward superior hydrogen evolution and flexible supercapacitor.

Two-dimensional (2D) transition metal dichalcogenide (TMDC) heterostructure is a new age strategy to achieve high electrocatalytic activity and ion storage capacity. The less complex and cost-effective applicability of the large-area TMDC heterostructure (HS) for energy applications require more research. Herein, we report the MoSe@WSe nanohybrid HS electrocatalyst prepared using liquid exfoliated nanocrystals, followed by direct electrophoretic deposition (EPD).

Photosensitive electrocatalysts based on Ni-WSnanohybrids for hydrogen evolution reaction.

Efficient hydrogen evolution by electrolysis plays an indispensable role for hydrogen fuel generation in green energy devices. In order to implement high-performance electrocatalytic activity, it is usually necessary to design economically viable, effective and stable electrocatalysts to reduce activation potential barriers. Herein, we report the photosensitive Ni-WSnanohybrids for enhanced electrocatalytic hydrogen evolution reaction (HER).

WSecrystals on paper: flexible, large area and broadband photodetectors.

The paper-based photodetector has recently captivated a great deal of attention in various opto-electronics applications because of facile, cost effective and green synthesis. Two-dimensional transition metal dichalcogenides materials are promising for photodetection under the broad spectral range. In this work, we have fabricated paper-based device by rubbing the tungsten di-selenide (WSe) crystals on paper substrate.

MoS/WSenanohybrids for flexible paper-based photodetectors.

Flexible photodetectors functionalized by transition metal dichalcogenides have attracted great attention due to their excellent photo-harvesting efficiency. However, the field of optoelectronics still requires advancement in the production of large-area, broad band and flexible photodetectors. Here we report a flexible, stable, broad band and fast photodetector based on a MoS/WSeheterostructure on ordinary photocopy paper with pencil-drawn graphite electrodes.

Enhanced Antifungal Activity of WS/ZnO Nanohybrid against .

forms persistent infections through the formation of biofilms that confer resistance to existing antifungal drugs. Biofilm targeting is therefore a promising strategy to combat infections. The WS/ZnO nanohybrids exhibits considerably improved antibiofilm activity and inhibited the biofilm formation by 91%, which is quite better than that for pristine WS, which is only 74%.

Highly sensitive and flexible pressure sensor based on two-dimensional MoSe nanosheets for online wrist pulse monitoring.

The advancement of portable and flexible electronics that is integrated with multiple sensing functions has increasingly drawn considerable interest. The fabricated sensors would have the ability to sense multiple deformations like pressing, twisting and trivial vibrations such as pulses of wrist vibrations to mimic human skin. Presently, we implemented an easy, cost-effective and optimized fabrication technique for production of pressure sensors based on MoSe nanosheets coated on cellulose paper.

Flexible paper based piezo-resistive sensor functionalised by 2D-WSe nanosheets.

High-performance electronics demand extremely sensitive piezo-resistive sensors with important features such as low-fabrication cost, easy implementation, low power consumption and high-pressure sensitivity over broad pressure range. Herein, we report a flexible piezo-resistive paper-based device functionalised by WSe nanosheets. An efficient and low-cost fabrication strategy using Whatman filter paper and tissue paper is adopted for versatile sensing applications.

Two-dimensional semiconductor transition metal based chalcogenide based heterostructures for water splitting applications.

Recent research and development is focused in an intensive manner to increase the efficiency of solar energy conversion into electrical energy via photovoltaics and photo-electrochemical reactions. Electrocatalytic and photocatalytic water splitting into hydrogen and oxygen is a promising and emerging technology. Heterogeneous nanostructures based on semiconductor materials have attracted much attention to be used as catalysts, co-catalysts, photocatalysts and photoabsorbers.