Choi Seung Gun

9 Questions 1 Answers 0 Followers

Questions related from Choi Seung Gun

Full cell test of alkaline water electrolysis?

I am a student researching catalysts, and I would like to perform full cell tests for alkaline water electrolysis. Therefore, I need to purchase a small-scale alkaline water electrolysis cell...

23 October 2024 3,367 1 View

How to Deal with This Error in Opening Origin Graph in Powerpoint?

I've used Origin 2024 trial for 6 month. Now the licence is expired, I'm using Origin 2016 of which the licence is available for me. But, error message "The server application, source file, or...

03 June 2024 7,559 1 View

Can I get a non-spin-polarized pseudopotential file of Ba for Quantum espresso?

I'm trying relax calculation but scf accuracy is too big. So, I want to get Ba.pbe-n-kjpaw_psl.1.0.0.UPF but I cannot find it. Or it's OK if it is not paw of pbe. I don't care if it is...

18 August 2023 1,591 2 View

How can I determine nbnd in quantum espresso?

Hello, I'm beginner in DFT and I'm working on a MOF in the following article. https://www.nature.com/articles/s41467-022-34278-6#Sec10 I want to execute nscf, but, I don't know how I should...

09 March 2023 3,614 1 View

How can I dope Si in graphite in quantum espresso?

I want to calculate DOS of Si-doped graphite. But I get error Error in routine read_cards (5): wrong number of columns in ATOMIC_POSITIONS when my input file is like...

03 March 2023 9,163 2 View

Why do UPF files ignored?

My input file is too long so I'm attaching the file. I'm having problems 1. 2 of my atom UPF files are ignored. 2. Atomic positions below 5th line are all ignored. Can you help me with this? This...

03 March 2023 2,753 0 View

How can I measure the half-wave potential of the ORR catalyst on Ni foam?

Exactly as said in the title. How can I measure the half-wave potential of the ORR catalyst on Ni foam?

28 August 2020 4,203 1 View

Is there any difference of ORR activity between as slurry and in-situ grown catalyst on Ni foam?

Hello, I'm a graduate student studying electrocatalyst. Is there any difference of ORR activity between as slurry and in-situ grown catalyst on Ni foam? And some paper says they scrape the...

28 August 2020 6,437 0 View

How to etch over-cured photoresist?

Hello! I'm using az 4620 as my PR. Usually, it is cured at 110 degree celsius under heating for 80 seconds. I know that, but I have to heat it at 300 degree celsius for 25 hours. I can't erase PR...

23 December 2019 9,528 1 View