Issue 41, 2019

A novel model for pyro-electro-catalytic hydrogen production in pure water

Abstract

The pyro-electro-catalytic induced generation of hydrogen gas is an environmentally friendly and sustainable way to convert excess thermal energy into a storable form. The main idea is to make use of spontaneous polarization of pyroelectric materials that can be altered by temperature changes. Thus, surface potential changes and subsequent electron exchange with surrounding molecules can be induced. In this work, a fundamental model to describe the behavior of a thermally excited pyroelectric material in pure water is developed. The model combines the fields of pyroelectricity, electrochemistry, diffusion and semiconductor theory. After derivation, it was used to explore some basic questions on pyro-electro-catalytic hydrogen production and the accuracy was tested with experimental data. The results show that p/εr has to be balanced depending on the temperature gradient to maximize the hydrogen production. The validation of the experimental data revealed good agreement.

Graphical abstract: A novel model for pyro-electro-catalytic hydrogen production in pure water

Supplementary files

Article information

Article type
Paper
Submitted
03 May 2019
Accepted
19 Sep 2019
First published
19 Sep 2019

Phys. Chem. Chem. Phys., 2019,21, 23009-23016

A novel model for pyro-electro-catalytic hydrogen production in pure water

J. Schlechtweg, S. Raufeisen, M. Stelter and P. Braeutigam, Phys. Chem. Chem. Phys., 2019, 21, 23009 DOI: 10.1039/C9CP02510C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements