التفاصيل البيبلوغرافية
| العنوان: |
Earth-Abundant Fe and Ni Dually Doped Co 2 P for Superior Oxygen Evolution Reactivity and as a Bifunctional Electrocatalyst toward Renewable Energy-Powered Overall Alkaline Water Splitting |
| المؤلفون: |
Jiangtian Li (1284543), Deryn Chu (1543024), David R. Baker (1504672), Asher Leff (11426844), Peng Zheng (187813), Rongzhong Jiang (1543021) |
| سنة النشر: |
2021 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Biochemistry, Evolutionary Biology, Ecology, Developmental Biology, Environmental Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, world application scenario, synergistic actions among, powered electrolyzer cell, benchmark catalyst ruo, improved intrinsic activity, renewable energy sources, oer activation process, increased disorder defects, 3 +, powered water splitting, overall water splitting, exceptional oer activity, efficient bifunctional electrocatalysts, art oer electrocatalysts, 2 , 2 , fe incorporation decreases, p || ni, p || feni, water splitting, situ <, proposed electrocatalysts, activity compared |
| الوصف: |
In this paper, we report multimetallic phosphide FeNi-Co 2 P as a superior alkaline oxygen evolution reaction (OER) electrocatalyst and bifunctional electrocatalyst for solar energy-powered water splitting. Fe incorporation into Ni-Co 2 P leads to (i) the increased amount of high-valence Co 3+ and Ni 3+ , (ii) the improved intrinsic activity of active centers, and (iii) the increased disorder defects in the in situ -formed oxyhydroxide species during the OER activation process. Synergistic actions among them enable the electrocatalyst’s exceptional OER activity with an overpotential of 225 ± 4 mV at 10 mA/cm 2 , which outperforms the benchmark catalyst RuO 2 and most state-of-the-art OER electrocatalysts. Meanwhile, Fe incorporation decreases the density of states near the Fermi level, which slightly degrades the HER activity compared to the Fe-free electrocatalyst. The FeNi-Co 2 P||FeNi-Co 2 P and FeNi-Co 2 P||Ni-Co 2 P electrolyzer cells demonstrate voltages of 1.596 and 1.578 V at 10 mA/cm 2 for water splitting in 1 M KOH, respectively. A solar energy-powered electrolyzer cell for water splitting has been realized with the as-proposed electrocatalysts. Our results suggest that multimetallic phosphides are promising as low-cost, efficient bifunctional electrocatalysts for overall water splitting in alkaline electrolyte. Additionally, this work provides a real-world application scenario of overall water splitting for hydrogen generation by renewable energy sources. |
| نوع الوثيقة: |
dataset |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/media/Earth-Abundant_Fe_and_Ni_Dually_Doped_Co_sub_2_sub_P_for_Superior_Oxygen_Evolution_Reactivity_and_as_a_Bifunctional_Electrocatalyst_toward_Renewable_Energy-Powered_Overall_Alkaline_Water_Splitting/16613313 |
| DOI: |
10.1021/acsaem.1c01926.s004 |
| الاتاحة: |
https://doi.org/10.1021/acsaem.1c01926.s004 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.B4180C9D |
| قاعدة البيانات: |
BASE |