Muhammad Shoaib

5 Questions 5 Answers 0 Followers

Questions related from Muhammad Shoaib

Why there is performance degradation in NPMC-ORR catalyst with the passage of time?

I made several ORR catalyst for PEMFC but after putting the catalyst in vial/glass bottle/polybags, I observe decrease in onset/peak potentials with the passage of time. e.g. if I test my catalyst...

10 March 2019 6,253 1 View

Why are the currents and potentials different in LSV and CV for ORR?

I am doing work on non-precious metal catalyst for ORR. All the times, I get narrow peak using CV while a broader peak using LSV for the same catalyst (as shown in the attached figure) at same...

08 March 2019 7,657 4 View

Is it safe to work with hydrogen cylinder in fuel cell lab?

We have a lab of batteries and fuel cell where we usually work with fuels other than hydrogen like formic acid/ methanol/ NaBH4/etc. A new student has purchased a hydrogen cylinder to use it as...

29 October 2018 7,722 4 View

Different onset/half-wave potentials using different templates?

Do we get the same (or different) onset/half-wave potentials using different templates (like CaCO3,SiO2, or without template) for PEMFC ORR? As far as I know, we get different current densities...

25 June 2018 6,654 2 View

Oxygen Reduction Reaction via 4 electron pathway in acid?

I am new to the field of Fuel cell and working on non-Pt metal catalyst. I want to know how Pt (and some other materials) follow 4 electron transfer while many others (including graphene) follow 2...

04 December 2017 7,075 2 View