Water splitting via an electrochemical process to generate hydrogen is economic and green approach resolve the looming energy environmental crisis. The rational design of multicomponent materials with seamless interfaces having robust stability, facile scalability, low-cost electrocatalysts a grand challenge produce by water electrolysis. Herein, we report superhydrophilic homogeneous bimetallic phosphide Ni2P–CuP2 on Ni-foam-graphene-carbon nanotubes (CNTs) heterostructure using...

A novel aerobic hyperthermophilic archaeon was isolated from a coastal solfataric vent at Kodakara-Jima Island, Japan. The new isolate, strain K1, is the first strictly organism growing temperatures up to 100°C. It grows optimally 90 95°C, pH 7.0, and salinity of 3.5%. cells are spherical shaped 0.8 1.2 μm in diameter. Various proteinaceous complex compounds served as substrates during growth. Thiosulfate stimulates growth without producing H2S. core lipids consist solely C25-isopranyl...

We present an experimental manifestation of how the single-particle density states around Fermi level $({E}_{F})$ changes near a Mott transition. In metallic perovskite-type ${3d}^{1}$ Mott-Hubbard system ${\mathrm{Ca}}_{1\ensuremath{-}x}{\mathrm{Sr}}_{x}{\mathrm{VO}}_{3}$, as one decreases $x$ spectral weight coherent band ${E}_{F}$ is gradually transferred to that precursor lower Hubbard $\ensuremath{\sim}$2 eV below ${E}_{F}$. The momentum dependence quasiparticle self-energy and hence...

High-quality single-crystal ZnO nanowire arrays with diameter ranging from 30 to 110 nm were synthesized using a two-step process: (1) synthesis of thin film by sol–gel technique, which was used as seed layer, and (2) oriented grown on layer hydrothermal reaction process at low temperature 90 °C. Experimental results reveal an ultrahigh sensitivity ∼98% 100 ppm H2 gas 93% 200 CO gas, ultrafast recovery 1 2 ms high repeatability. The current transients demonstrate the reversible type sensing...

Water splitting using renewable energy resources is an economic and green approach that immensely enviable for the production of high-purity hydrogen fuel to resolve currently alarming environmental crisis. One effective routes produce with help integrated solar system develop a cost-effective, robust, bifunctional electrocatalyst by complete water splitting. Herein, we report superhydrophilic layered leaflike Sn4P3 on graphene-carbon nanotube matrix which shows outstanding electrochemical...

The effects of nitrogen doping into Cu 2 O thin films deposited by reactive radio-frequency magnetron sputtering were studied. It was found that is an effective p-type dopant for and the hole density can be controlled from 1×10 15 cm -3 to approximately 10 17 . acceptor level estimated about 0.14 eV temperature-dependent Hall effect measurements this value roughly agrees with obtained mass theory. No significant degradation structural optical properties induced observed. resistivity 15.2 Ωcm...

The present study aimed to assess the in-vitro toxicity of a popular azodye, Eriochrome Black T (EBT) which may be an environmental hazard causing water pollution if released by textile industries as waste effluents nearby ponds. We explored toxic potential EBT at 200, 400 and 800 μg/ml concentrations, were selected based on quantification in pond near carpet industries. investigated permeability across organ barriers found it 6.48 ± 0.44% highest concentration. also showed up 26.46 0.533%...

Deposition conditions of cuprous oxide (Cu 2 O) thin films on glass substrates by reactive radio-frequency (rf) magnetron sputtering method were studied. The substrate temperature was found to be important for obtaining high-quality films, and the optimum about 500°C. Cu O deposited at 500°C shows a band-gap energy 2.0 eV typical hole concentration order 10 15 cm -3 with Hall mobility 60 /V·s, which is highest reported thus far.

All's well that ends well! The complete assignment of the structure largest known natural product is not a biopolymer (maitotoxin) has concluded with determination configurations stereogenic centers in its two acyclic side chains. results NMR studies were confirmed by comparison synthesized model compounds. absolute configuration was determined analysis fragment and corresponding unit GC chiral column. In contracted below, chains are attached to termini polycyclic polyether.

Here we report a novel hybrid material consists of 2D graphitic carbon nitride (g-C3N4) and graphene heterostructure that exhibits piezoresistivity superior to potentially being used as strain sensor. The g-C3N4 contains periodically spaced triangular nanopores is for improving the sensor imparting change in polarization upon application strain. In this work, have investigated graphene/g-C3N4 interfaced materials quantified its piezoresistive effects through experimental analysis density...

In energy storage-device it is highly crucial to develop durable electrode materials having high specific capacitance and superior density without disturbing its inherent flexibility. Herein, we demonstrate three-dimensional graphene oxide decorated monodispersed hollow urchin γ-MnS (γ-MnS@3DG) via proficient one-step solvothermal method. The designed material delivers a remarkable of 858 F g–1 at 1 A g–1. flexible solid state asymmetric supercapacitor (ASCs) device assembled using surface...

One of the major objectives using improved Hummers' method was to exfoliate graphene layers by oxidizing and thereafter reducing them obtain highly conductive reduced layers, which can be used in construction electronic devices or as a part catalyst composites energy conversion reactions. Herein, we have employed similar idea layered double hydroxide (LDH), is proposed promising material for oxygen evolution reaction (OER) electrocatalysis. Usually, efficiency these materials largely...

To address the need for renewable-energy technology growing population, environmentally benign hydrogen fuel generation via water splitting has become a game-changer that can replace fossil fuels. Herein, we report superhydrophilic selenium-anchored nickel phosphide (Ni5P4) on surface of low-cost, highly porous melamine foam-graphene-carbon nanotube matrix facile solvothermal method. The developed electrocatalyst renders superior electrocatalytic performance with long-term durability minimum...

Efficient Eu-related photoluminescence was observed from Eu doped GaN grown by gas-source molecular beam epitaxy using ammonia as a nitrogen source on Al2O3(0001) or Si(111) substrates. Photoluminescence spectra show red emission at 622 nm which can be assigned 5D0–7F2 transition of Eu3+ ion. The effects the growth conditions and substrates luminescence intensity were studied, mechanism suggested based excitation spectra. Room temperature operation MIS diodes composed demonstrated.

An Fe–Mn–Si–Cr shape memory alloy is applied to make crane rail fishplates. The recovery of the reverse martensite transformation from hcp fcc utilised connect finite lengths rail. Rails connected by normal steel fishplates gradually become separated at joint and can be damaged broken flakes in gap dents during heavy duty operation crane. To eliminate such problems, a sufficient controlled compressive stress required resist responsible for creating gap. A quantitative estimate load separate...

Here we report the highest N-doping level achieved so far for carbon nitride (CNx) nanotubes by using a new precursor imidazole (as dual supplier of and nitrogen) together with ferrocene catalyst). A controllable growth aligned CNx was simple CVD in temperature range 700–950 °C leading to nitrogen doping from 12.1 25.7 at%. The at 850 °C, which is attributed abundance C–N fragments this decomposition temperature. Nitrogen type N-moieties were determined XPS EELS analyses. HRTEM analysis...

The OER activity of Ca_1−xSr_xRuO₃ is remarkably enhanced at the metal–insulator boundary by strong electron–electron correlation.