In-situ La doped Co3O4 as highly efficient photocatalyst for solar hydrogen generation

10.1016/j.ijhydene.2018.03.126

2018-04-11

Photocatalytic hydrogen production via water splitting using metal oxide semiconductors has attract great interests because of the two electrons on the kinetics. Pristine Co3O4 was widely studied as efficient photocatalyst, but prefers to produce oxygen due t...

The structure and magnetic properties of magnesium-substituted LaFeO3 perovskite negative electrode material by citrate sol-gel

10.1016/j.ijhydene.2018.03.156

2018-04-11

Perovskite-type composite oxide is a material as high-energy-density Ni-MH batteries. Due to the perovskite type oxide has a special crystal structure, and exhibits a rich variety of physicochemical properties, we study the affect of the Mg2+ doping amount, c...

Facile preparation of biomass-derived bifunctional electrocatalysts for oxygen reduction and evolution reactions

10.1016/j.ijhydene.2018.03.136

2018-04-11

The development of inexpensive and efficient bifunctional electrocatalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is still remained a challenge in wide range of renewable energy technologies. Herein, biomass-derived nitrogen s...

Hybridizing MoS2 and C60 via a van der Waals heterostructure toward synergistically enhanced visible light photocatalytic hydrogen production activity

10.1016/j.ijhydene.2018.03.148

2018-04-11

Molybdenum disulfide (MoS2) as a representative transition-metal dichalcogenide (TMD) has been extensively used as a noble-metal-free cocatalyst for photocatalytic hydrogen (H2) production, but suffers from poor photocatalytic activity due to the catalytic in...

Synthesis of Mg2FeH6 by hydrogenation of Mg/Fe powder mixture prepared by cold roll milling in air: Effects of microstructure and oxygen distribution

10.1016/j.ijhydene.2018.03.129

2018-04-11

Herein, we describe the synthesis of Mg2FeH6 by hydrogenation of a 2.1 Mg:Fe (mol/mol) powder mixture prepared by cold roll milling (CRM) in air. The thickness of Fe layers and the amount and distribution of oxygen with number of CRM passes were systematicall...

An experimental investigation of convective mass transfer characterization in two configurations of electrolysers

10.1016/j.ijhydene.2018.03.172

2018-04-10

This work is devoted to the study of hydrodynamics behavior and mass transfer performance in water electrolysis processes, two configurations of containers and electrodes are studied in laboratory experiments under different current densities, the platinum (0...

Application of graft-type poly(ether ether ketone)-based polymer electrolyte membranes to electrochemical devices – Fuel cells and electrolytic enrichment of tritium

10.1016/j.ijhydene.2018.03.103

2018-04-07

The polymer electrolyte membrane consisting of poly(styrenesulfonic acid)-grafted poly(ether ether ketone) (PEEK-PEM) was investigated for application to two electrochemical devices; a fuel cell and electrolytic enrichment of tritium. For fuel cells, high tem...

Hydrogen evolution reaction: The role of arsenene nanosheet and dopant

10.1016/j.ijhydene.2018.03.066

2018-04-07

The state-of-the-art density functional theory (DFT) is employed to study the catalytic activity of arsenene for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). We have included dispersion correction to get accurate adsorption energy on...

Probability of occurrence of ISO 14687-2 contaminants in hydrogen: Principles and examples from steam methane reforming and electrolysis (water and chlor-alkali) production processes model

10.1016/j.ijhydene.2018.03.084

2018-04-04

According to European Directive 2014/94/EU, hydrogen providers have the responsibility to prove that their hydrogen is of suitable quality for fuel cell vehicles. Contaminants may originate from hydrogen production, transportation, refuelling station or maint...

Utilization of Pistia stratiotes (aquatic weed) for fermentative biohydrogen: Electron-equivalent balance, stoichiometry, and cost estimation

10.1016/j.ijhydene.2018.03.099

2018-04-04

This study investigated the utilization of Pistia stratiotes for biohydrogen production via a dark-fermentation process. The aquatic plant was subjected to acid-hydrolysis using H2SO4: 3.0% (v/v) for 40 min, resulting in sugar yield: 122.2 ± 5.2 mg/g. The opt...