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This is to certify that your paper entitled «Porous carbon nanosheets derived from ZIF-۸ with transitional metal ascathode proton exchange membrane fuel cell» was indexed with 2 pages, in the CIVILICA citation database, code COI:PEEL12_034, after evaluation and approval of the referees of the "The 17th Annual Iran Electrochemistry Seminar and the 12th Iran Fuel Cell Conference 2023.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.