Electrolytic process

About: Electrolytic process is a research topic. Over the lifetime, 3049 publications have been published within this topic receiving 23341 citations.

Hydrogen Production From Water Electrolysis: Current Status and Future Trends

Abstract: This paper reviews water electrolysis technologies for hydrogen production and also surveys the state of the art of water electrolysis integration with renewable energies. First, attention is paid to the thermodynamic and electrochemical processes to better understand how electrolysis cells work and how they can be combined to build big electrolysis modules. The electrolysis process and the characteristics, advantages, drawbacks, and challenges of the three main existing electrolysis technologies, namely alkaline, polymer electrolyte membrane, and solid oxide electrolyte, are then discussed. Current manufacturers and the main features of commercially available electrolyzers are extensively reviewed. Finally, the possible configurations allowing the integration of water electrolysis units with renewable energy sources in both autonomous and grid-connected systems are presented and some relevant demonstration projects are commented.

An Electrolytic Zn-MnO 2 Battery for High-Voltage and Scalable Energy Storage

Abstract: Zinc-based electrochemistry is attracting significant attention for practical energy storage owing to its uniqueness in terms of low cost and high safety. However, the grid-scale application is plagued by limited output voltage and inadequate energy density when compared with more conventional Li-ion batteries. Herein, we propose a latent high-voltage MnO2 electrolysis process in a conventional Zn-ion battery, and report a new electrolytic Zn-MnO2 system, via enabled proton and electron dynamics, that maximizes the electrolysis process. Compared with other Zn-based electrochemical devices, this new electrolytic Zn-MnO2 battery has a record-high output voltage of 1.95 V and an imposing gravimetric capacity of about 570 mAh g-1 , together with a record energy density of approximately 409 Wh kg-1 when both anode and cathode active materials are taken into consideration. The cost was conservatively estimated at

Electrode and coating therefor

Abstract: AN ELECTRODE FOR USE IN AN ELECTROLYTIC PROCESS HAVING A CONDUCTIVE BASE OF A MATERIAL WHICH AT LEAST ON THE OUTSIDE IS RESISTANT TO THE ELECTROLYTE AND THE PRODUCTS OF THE ELECTROLYSIS THEREOF, AND A COATING ON THE BASE WHICH CONSISTS ESSENTIALLY OF AT LEAST ONE OXIDE OF A FILM-FORMING METAL AND A NON-FILM-FORMING CONDUCTOR, THE TWO BEING IN A MIXED CRYSTAL FORM A COVERING AT LEAST 2% OF THE ACTIVE SURFACE OF THE BASE, AND METHODS OF MAKING THE ELECTRODE. THE RESULTING ELECTRODE IS ESPECIALLY USEFUL IN THE ELECTROLYTIC PRODUCTION OF CHLORINE AND ALKALI IN MERCURY CELLS, AND DIAPHRAGM CELLS, ELECTROLYTIC PRODUCTION OF CHLORATES, HYPROCHLORITES, PERSULPHATES, AND PERBORATES, OXIDATION OF ORGANIC COMPOUNDS, FUEL CELLS, DESALINATION AND PURIFICATION OF WATER, GALVANIC PROCESSES, AND AS AN ANODE IN CATHODIC PROTECTION SYSTEM, THE ELECTRODE HAVING A LONG LIFE, A LOW OVERVOLTAGE AND CATALYTIC PROPERTIES.