by Wisut Chamsa-ard  , Derek Fawcett  , Chun Che Fung  and Gerrard Poinern

Received: 28 September 2020;  Published: 29 December 2020;  doi: 10.21926/jept.2004018

The demand for high-quality freshwater is increasing due to global population growth, intensifying agricultural practices and expanding industrial development. Additionally, many global regions have low levels of rainfall which makes them arid and incapable of supporting large human populations or agriculture. Currently, large quantities of fossil fuels are used to generate the power needed to drive energy intensive desalination processes that deliver high-quality freshwater to many of these reg [...]

by SAMUEL CRUZ-MANZO

Received: 31 July 2020;  Published: 24 November 2020;  doi: 10.21926/jept.2004017

In this study, uncertainties during the assessment of the electrochemical impedance spectrum of the polymer electrolyte fuel cell (PEFC) attributed to inductive artefacts at high frequencies and inductive loops at low frequencies as well as oxygen diffusion time constant are discussed. A validated impedance model represented as an equivalent electrical circuit of a PEFC allowed the simulation of the effect of inductive artefacts, inductive loops and oxygen diffusion time constant on electrochemi [...]

by Katarzyna Grubel  , Ji Su  , Jotheeswari Kothandaraman  , Kriston Brooks  , Gabor A. Somorjai  and Tom Autrey

Received: 01 September 2020;  Published: 23 November 2020;  doi: 10.21926/jept.2004016

In this perspective on hydrogen carriers, we focus on the needs for the development of robust active catalysts for the release of H2 from aqueous formate solutions, which are non-flammable, non-toxic, thermally stable, and readily available at large scales at reasonable cost. Formate salts can be stockpiled in the solid state or dissolved in water for long term storage and transport using existing infrastructure. Furthermore, formate salts are readily regenerated at moderate pressures using the [...]