One-step preparation of eggplant-derived hierarchical porous graphitic biochar as efficient oxygen reduction catalyst in microbial fuel cells.

RSC Adv · 2020 · PMC8693568 · PMID 35423679

Europe PMC DOI

hedged sentence

—

closest p

—

boldest claim

The sentences

a decreasing trendno p-value reported

While the MFC voltage with the Pt/C cathode showed a decreasing trend over run time of 240 h, attributed to Pt poisoning and deactivation in solution. 48 EPGC-800-2, which has good operational stability, is essential for air-cathode MFCs application as ORR catalyst. 4.

also in 47,180 other papers

Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.