%0 Journal Article %1 zhang2022observation %A Zhang, Yudi %A Arpino, Kathryn E. %A Yang, Qun %A Kikugawa, Naoki %A Sokolov, Dmitry A. %A Hicks, Clifford W. %A Liu, Jian %A Felser, Claudia %A Li, Guowei %D 2022 %J Nat. Commun %K a %N 1 %P 7784-- %R 10.1038/s41467-022-35464-2 %T Observation of a robust and active catalyst for hydrogen evolution under high current densities %U https://doi.org/10.1038/s41467-022-35464-2 %V 13 %X Despite the fruitful achievements in the development of hydrogen production catalysts with record-breaking performances, there is still a lack of durable catalysts that could work under large current densities (>1000 mA cm−2). Here, we investigated the catalytic behaviors of Sr2RuO4 bulk single crystals. This crystal has demonstrated remarkable activities under the current density of 1000 mA cm−2, which require overpotentials of 182 and 278 mV in 0.5 M H2SO4 and 1 M KOH electrolytes, respectively. These materials are stable for 56 days of continuous testing at a high current density of above 1000 mA cm−2 and then under operating temperatures of 70 °C. The in-situ formation of ferromagnetic Ru clusters at the crystal surface is observed, endowing the single-crystal catalyst with low charge transfer resistance and high wettability for rapid gas bubble removal. These experiments exemplify the potential of designing HER catalysts that work under industrial-scale current density.

@article{zhang2022observation, abstract = {Despite the fruitful achievements in the development of hydrogen production catalysts with record-breaking performances, there is still a lack of durable catalysts that could work under large current densities (>1000 mA cm−2). Here, we investigated the catalytic behaviors of Sr2RuO4 bulk single crystals. This crystal has demonstrated remarkable activities under the current density of 1000 mA cm−2, which require overpotentials of 182 and 278 mV in 0.5 M H2SO4 and 1 M KOH electrolytes, respectively. These materials are stable for 56 days of continuous testing at a high current density of above 1000 mA cm−2 and then under operating temperatures of 70 °C. The in-situ formation of ferromagnetic Ru clusters at the crystal surface is observed, endowing the single-crystal catalyst with low charge transfer resistance and high wettability for rapid gas bubble removal. These experiments exemplify the potential of designing HER catalysts that work under industrial-scale current density.}, added-at = {2023-11-22T16:52:18.000+0100}, author = {Zhang, Yudi and Arpino, Kathryn E. and Yang, Qun and Kikugawa, Naoki and Sokolov, Dmitry A. and Hicks, Clifford W. and Liu, Jian and Felser, Claudia and Li, Guowei}, biburl = {https://www.bibsonomy.org/bibtex/2fedcbf761ddbcffceedee569eac0a788/ctqmat}, day = 16, doi = {10.1038/s41467-022-35464-2}, interhash = {a27017fabf764c8f3eb78109d1534ac0}, intrahash = {fedcbf761ddbcffceedee569eac0a788}, issn = {20411723}, journal = {Nat. Commun}, keywords = {a}, month = {12}, number = 1, pages = {7784--}, refid = {Zhang2022}, timestamp = {2023-11-22T16:52:18.000+0100}, title = {Observation of a robust and active catalyst for hydrogen evolution under high current densities}, url = {https://doi.org/10.1038/s41467-022-35464-2}, volume = 13, year = 2022 }