التفاصيل البيبلوغرافية
| العنوان: |
Metal‐free nanostructured‐carbon inks for a sustainable fabrication of zinc/air batteries: From ORR activity to a simple prototype. |
| المؤلفون: |
Santos, Florencio, Lorca, Sebastian, Gonzalez‐Martinez, Juan F., Urbina, Antonio, Alvarez‐Sanchez, Miguel A., González‐Domínguez, José M., García‐Bordejé, Enrique, Ansón‐Casaos, Alejandro, Benito, Ana M., Maser, Wolfgang K., Fernández Romero, Antonio J. |
| المصدر: |
Applied Research; Jun2024, Vol. 3 Issue 3, p1-10, 10p |
| مصطلحات موضوعية: |
TRANSITION metal catalysts, CATALYST testing, CAPACITANCE measurement, ENERGY storage, CATALYTIC activity, CARBON electrodes |
| مستخلص: |
Zinc/air batteries are convenient energy storage devices for both small and massive applications. While future perspectives indicate the need for low‐cost components and sustainable fabrication processes, the battery performance is in part controlled by the kinetics of the oxygen reduction reaction (ORR), which typically involves transition metals as catalysts. In this context, we prepare a series of metal‐free water‐based carbon inks, which are tested for their catalytic performance, once deposited on a gas‐diffusion substrate, in the air cathode of a simple battery prototype. The inks contain a variety of well‐defined carbon nanomaterials and additives, exhibiting different physicochemical properties that critically influence the interaction with the gas diffusion hydrophobic substrate. The intrinsic ORR catalytic activity of the ink material is also analyzed on a glassy carbon electrode by the rotating ring‐disc electrode (RRDE) method and specific capacitance measurements. The discharge capacity on our zinc/air battery prototype correlates well with the intrinsic catalytic activity in the RRDE. However, only the activity in the RRDE does not actually assure the performance on the commercial cathode of the prototype, since other chemical compatibility issues play a role. Thus, we highlight the importance of catalyst testing, not only on the RRDE but also under realistic device conditions. [ABSTRACT FROM AUTHOR] |
|
Copyright of Applied Research is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
