Manganese Oxoborate-Based Nanostructures as Novel Oxygen Evolution Catalysts in Neutral Media
CHEMNANOMAT, cilt.7, sa.12, ss.1340-1347, 2021 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 7 Sayı: 12
- Basım Tarihi: 2021
- Doi Numarası: 10.1002/cnma.202100256
- Dergi Adı: CHEMNANOMAT
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Applied Science & Technology Source, Chemical Abstracts Core, Compendex
- Sayfa Sayıları: ss.1340-1347
- Anahtar Kelimeler: Borates, electrocatalysis, manganese oxoborate, oxygen evolution reaction, water oxidation, ELECTROCATALYTIC WATER OXIDATION, HYDROGEN-PRODUCTION, OXIDES, EFFICIENT, BIRNESSITE, ELECTRODES
- Hacettepe Üniversitesi Adresli: Evet
Özet
The development of electrocatalysts for the OER (oxygen evolution reaction) process is an ongoing challenge in producing sustainable energy systems. Herein, we report QS (quasi-spherical), IR (irregular), and NR (nanorod) Mn2OBO3 (manganese oxoborate), modified with a carbon support, as candidate electrocatalysts for OER in a neutral medium. QS-, IR- and NR-Mn2OBO3 catalysts displayed low onset potentials of 201 mV, 205 mV, and 208 mV and Tafel slope results of 94 mV dec(-1), 97 mV dec(-1), and 106 mV dec(-1), respectively. As a result of the long-term stability tests, it was determined that the NR-Mn2OBO3 sample was extremely stable compared to the QS- and IR-catalysts. This work introduces a new Mn2OBO3/C composite catalyst that displays efficient OER performance at a neutral medium and provides a different perspective for catalyst development strategies.