Related Experiment Video
Updated: Dec 2, 2025

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis
Published on: January 6, 2016
Different Photostability of BiVO4 in Near-pH-Neutral Electrolytes
Siyuan Zhang1, Ibbi Ahmet2, Se-Ho Kim1
1Max-Planck-Institut für Eisenforschung GmbH, 40237 Düsseldorf, Germany.
Abstract:
Photoelectrochemical water splitting is a promising route to produce hydrogen from solar energy. However, corrosion of photoelectrodes remains a fundamental challenge for their implementation. Here, we reveal different dissolution behaviors of BiVO4 photoanode in pH-buffered borate, phosphate, and citrate (hole-scavenger) electrolytes, studied in operando employing an illuminated scanning flow cell. We demonstrate that decrease in photocurrents alone does not reflect the degradation of photoelectrodes. Changes in dissolution rates correlate to the evolution of surface chemistry and morphology. The correlative measurements on both sides of the liquid-semiconductor junction provide quantitative comparison and mechanistic insights into the degradation processes.
More Related Videos
Related Concept Videos
Phosphate Buffer
Sodium dihydrogen phosphate does not fully dissociate in neutral or acidic solutions. When a strong base, such as sodium hydroxide (NaOH), is introduced into the solution, sodium dihydrogen phosphate...
Titration of Polyprotic Base with a Strong Acid
Titration of Polyprotic Acids with a Strong Base
Polyprotic Acids
Titration of a Weak Acid with a Weak Base
As a result, there is no simple...
Buffers

