Lecture

Benchmarking Water Splitting Technologies

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

Description

This lecture discusses the importance of benchmarking in water splitting technologies, emphasizing the need for standardized testing protocols to enable accurate comparison of materials. It covers the challenges of real-world conditions, the pitfalls of standard testing, and the HydroGEN benchmarking project's goals and approach. The lecture also highlights the community engagement, international collaboration, and annual workshops aimed at developing a cohesive R&D community. Various topics such as test protocols, technology roadmaps, and the benefits of multiple reviews are explored, showcasing the efforts to drive research forward in the field of water splitting technologies.

Official source

Related concepts (9)

Water splitting

Water splitting is the chemical reaction in which water is broken down into oxygen and hydrogen: 2 H2O → 2 H2 + O2 Efficient and economical water splitting would be a technological breakthrough that could underpin a hydrogen economy, based on green hydrogen. A version of water splitting occurs in photosynthesis, but hydrogen is not produced. The reverse of water splitting is the basis of the hydrogen fuel cell. Electrolysis of water Electrolysis of water is the decomposition of water (H2O) into oxygen (O2) and hydrogen (H2) due to an electric current being passed through the water.

Photocatalytic water splitting

Photocatalytic water splitting is a process that uses photocatalysis for the dissociation of water (H2O) into hydrogen (H2) and oxygen (O2). Only light energy (photons), water, and a catalyst(s) are needed, since this is what naturally occurs in natural photosynthetic oxygen production and CO2 fixation. Photocatalytic water splitting is done by dispersing photocatalyst particles in water or depositing them on a substrate, unlike Photoelectrochemical cell, which are assembled into a cell with a photoelectrode.

Communication protocol

A communication protocol is a system of rules that allows two or more entities of a communications system to transmit information via any variation of a physical quantity. The protocol defines the rules, syntax, semantics, and synchronization of communication and possible error recovery methods. Protocols may be implemented by hardware, software, or a combination of both. Communicating systems use well-defined formats for exchanging various messages.

Electrolysis of water

Electrolysis of water is using electricity to split water into oxygen (O2) and hydrogen (H2) gas by electrolysis. Hydrogen gas released in this way can be used as hydrogen fuel, but must be kept apart from the oxygen as the mixture would be extremely explosive. Separately pressurised into convenient 'tanks' or 'gas bottles', hydrogen can be used for oxyhydrogen welding and other applications, as the hydrogen / oxygen flame can reach circa 2,800°C. Water electrolysis requires a minimum potential difference of 1.

Tunneling protocol

In computer networks, a tunneling protocol is a communication protocol which allows for the movement of data from one network to another. It involves allowing private network communications to be sent across a public network (such as the Internet) through a process called encapsulation. Because tunneling involves repackaging the traffic data into a different form, perhaps with encryption as standard, it can hide the nature of the traffic that is run through a tunnel.

Related lectures (11)

Photocatalysis: Water Splitting and Solar Fuels

Explores protocols for heterogeneous photocatalysis, emphasizing standardized reporting for improved efficiency and reproducibility in solar fuel production.

Semiconductor-assisted Photocatalysis

Explores semiconductor-assisted photocatalysis for water splitting and pollution remediation using TiO₂ and WO3.

Solar Fuel Devices: From Water Splitting to Water Dissociation

Explores solar fuel devices, from water splitting to water dissociation, covering renewable hydrogen generation, methane production, and cost breakdown of photoelectrochemical hydrogen generation.

Solar Hydrogen Production: Challenges and Progress

Explores the vision for hydrogen in achieving carbon neutrality by 2050 and the state-of-the-art progress in solar hydrogen production.

Chemical Transformations in (Photo) Electrocatalytic Materials