A modified sol-gel process has been found to significantly improve the photocatalytic activity of TiO2 nanoparticle in the process of solar hydrogen production. The surface of TiO2 nanoparticles were modified by the optimization of solvent of titanium precursor (acetic acid and/or ethanol) in the sol-gel method. A multi technique approach (SEM, XRD, FTIR, UV-DRS and TGA) was used to characteriz...

This report deals with a comparative study of typical methods for determining the fermentative abilities of microorganisms. The aim of the first studies was to select the best method for use with members of the Enterobacteriaceae and other easily cultivable species, using as criteria, rapidity, dependability, and simplicity. Later studies have involved adapting the method to some less easily cu...

The Syngas Chemical Looping (SCL) process converts gaseous fuels such as syngas and hydrocarbons into hydrogen and electricity while capturing 100% of the CO2 generated 1, . The SCL process simplifies the overall fuel conversion scheme while reducing pollutants in an indirect but highly effective manner. This is achieved via a specially tailored Fe2O3 based composite particle. As a result, hydr...

The hydrogen isotope ratio of the dinoflagellate sterol dinosterol (4a,23,24-trimethyl-5a-cholest-22E-en-3b-ol) was measured in suspended particles and surface sediments from the Chesapeake Bay estuary in order to evaluate the influence of salinity on hydrogen isotope fractionation. D/H fractionation was found to decrease by 0.99 ± 0.23& per unit increase in salinity over the salinity range 10–...

BACKGROUND Currently, hydrogen fuel is derived mainly from fossil fuels, but there is an increasing interest in clean and sustainable technologies for hydrogen production. In this context, the ability of some photosynthetic microorganisms, particularly cyanobacteria and microalgae, to produce hydrogen is a promising alternative for renewable, clean-energy production. Among a diverse array of ph...

The effect of substituting native grass with jengkol (Archidendron jiringa) by-product on fermentation characteristics, rumen microbial profile, methane production, and hydrogen balance using in vitro method was investigated. Seven treatments (different composition of native grass, jengkol peel, jengkol leaves, and concentrate) with five replications in a block randomized desi...

Abstract Intermittent power generation of renewable energy system is the active reason affecting stability grid, and adjusting load imbalance between supply through hydrogen production unit main means to reduce impact natural conditions ensure continuous stable supply. In this paper, simulation model permanent magnet direct drive fan for established, wind used achieve effect output power.

A novel process path is proposed to produce glycolic acid (GA) from CO2 as the feedstock, including capture, power-to-hydrogen, hydrogenation methanol, methanol oxidation formaldehyde, and formaldehyde carbonylation units. The bottlenecks are discussed perspectives of carbon utilization, emissions, total site energy integration, techno-economic analysis. utilization ratio 82.5%, capture unit ha...

In the title compound, C(20)H(19)N(3)O(3), the inter-planar angle between the benzimidazole unit and the quinoline unit is 25.1 (2)°. Two different hydrogen bonds involving the hydr-oxy group and the imidazole unit are present. An intra-molecular N-H⋯O hydrogen bond links the hydr-oxy group of the side chain with the imidazole unit, forming a 12-membered ring, and an inter-molecular O-H⋯N hydro...