A Supplement of GFEDF Based on Water Splitting for Hydrogen Fuels

DOI

10.2991/seeie-19.2019.18How to use a DOI?

Keywords

hydrogen; electric energy; enthalpy; Gibbs free energy

Abstract

Hydrogen fuel is a kind of clean energy that can be generated by photo catalyzing water splitting. It is interesting to investigate the case contrasting to Gibbs free energy determination formula (GFEDF). Through calculation and theoretical analysis, results are: (1) there is not electric energy and other form of work consumed in photo catalyzing water splitting, hence, the work from outside environment is less than the change of Gibbs free energy; contracting to GFEDF. (2) GFEDF works with a reaction when absorbed heat is less than the heat for entropy change; GFEDF does not work with a reaction when absorbed heat is more than the heat for entropy change. Thereby, work is not always more than the change of Gibbs free energy to make a nonspontaneous reaction occur.

Copyright

© 2019, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Guangzai Nong
AU  - Douyong Min
AU  - Yongjun Yin
AU  - Hongxiang Zhu
AU  - Chengrong Qin
AU  - Jiulong Sha
AU  - Shuangfei Wang
PY  - 2019/05
DA  - 2019/05
TI  - A Supplement of GFEDF Based on Water Splitting for Hydrogen Fuels
BT  - Proceedings of the 2019 2nd International Conference on Sustainable Energy, Environment and Information Engineering (SEEIE 2019)
PB  - Atlantis Press
SP  - 78
EP  - 81
SN  - 2352-5401
UR  - https://doi.org/10.2991/seeie-19.2019.18
DO  - 10.2991/seeie-19.2019.18
ID  - Nong2019/05
ER  -