Highly Active Lanthanum Perovskite Electrocatalysts (LaMnxCo1-xO3 (0 ≤ x ≤ 1)) by Tuning the Mn:Co Ratio for ORR and MOR in Alkaline Medium
<p>Lanthanum-based perovskites (LaMnxCo1-xO3 (0 ≤ x ≤ 1)) were synthesized using a solution combustion synthesis technique with variable ratios of Co and Mn to investigate the surface property and electrocatalytic characteristics (stability and activity of catalyst) for methanol oxidation reac...
محفوظ في:
| المؤلف الرئيسي: | |
|---|---|
| مؤلفون آخرون: | , , , |
| منشور في: |
2022
|
| الموضوعات: | |
| الوسوم: |
إضافة وسم
لا توجد وسوم, كن أول من يضع وسما على هذه التسجيلة!
|
| _version_ | 1864513567174164480 |
|---|---|
| author | Sadiyah Shafath (14152014) |
| author2 | Khulood Logade (14152017) Anchu Ashok (14152020) Anand Kumar (24122) Ibrahim M. Abu-Reesh (4501213) |
| author2_role | author author author author |
| author_facet | Sadiyah Shafath (14152014) Khulood Logade (14152017) Anchu Ashok (14152020) Anand Kumar (24122) Ibrahim M. Abu-Reesh (4501213) |
| author_role | author |
| dc.creator.none.fl_str_mv | Sadiyah Shafath (14152014) Khulood Logade (14152017) Anchu Ashok (14152020) Anand Kumar (24122) Ibrahim M. Abu-Reesh (4501213) |
| dc.date.none.fl_str_mv | 2022-11-22T21:15:16Z |
| dc.identifier.none.fl_str_mv | 10.1007/s12678-022-00772-0 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Highly_Active_Lanthanum_Perovskite_Electrocatalysts_LaMnxCo1-xO3_0_x_1_by_Tuning_the_Mn_Co_Ratio_for_ORR_and_MOR_in_Alkaline_Medium/21597720 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Physical chemistry Electrochemistry |
| dc.title.none.fl_str_mv | Highly Active Lanthanum Perovskite Electrocatalysts (LaMnxCo1-xO3 (0 ≤ x ≤ 1)) by Tuning the Mn:Co Ratio for ORR and MOR in Alkaline Medium |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p>Lanthanum-based perovskites (LaMnxCo1-xO3 (0 ≤ x ≤ 1)) were synthesized using a solution combustion synthesis technique with variable ratios of Co and Mn to investigate the surface property and electrocatalytic characteristics (stability and activity of catalyst) for methanol oxidation reaction (MOR), oxygen reduction reaction (ORR), and oxygen evolution reaction (OER) under alkaline medium (KOH). The structural, chemical, and morphological characterizations of the synthesized catalyst were performed by XRD, FTIR, SEM, TEM, and XPS techniques as a function of the Mn:Co elemental ratio. The time–temperature profile during the combustion process was also monitored to study the completion of the combustion reaction and to understand its impact on the structure of the perovskites. SEM/EDX and XPS analysis confirmed the formation of the targeted ratio of Mn and Co on the catalyst. Cyclic voltammetry (CV) and linear sweep voltammetry (LSV) results revealed that all perovskite samples with different Co:Mn ratios were active for ORR, OER, and MOR. The LaMnxCo1-xO3 perovskite with x = 0.4 showed the highest current density compared to the other samples toward all the electrocatalytic reactions under alkaline reaction conditions.</p> <p>Graphical Abstract</p><h2>Other Information</h2> <p> Published in: Electrocatalysis<br> License: <a href="https://creativecommons.org/licenses/by/4.0" target="_blank">https://creativecommons.org/licenses/by/4.0</a><br>See article on publisher's website: <a href="http://dx.doi.org/10.1007/s12678-022-00772-0" target="_blank">http://dx.doi.org/10.1007/s12678-022-00772-0</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_873a336aaada261e32bfae0d48cc1666 |
| identifier_str_mv | 10.1007/s12678-022-00772-0 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/21597720 |
| publishDate | 2022 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Highly Active Lanthanum Perovskite Electrocatalysts (LaMnxCo1-xO3 (0 ≤ x ≤ 1)) by Tuning the Mn:Co Ratio for ORR and MOR in Alkaline MediumSadiyah Shafath (14152014)Khulood Logade (14152017)Anchu Ashok (14152020)Anand Kumar (24122)Ibrahim M. Abu-Reesh (4501213)Physical chemistryElectrochemistry<p>Lanthanum-based perovskites (LaMnxCo1-xO3 (0 ≤ x ≤ 1)) were synthesized using a solution combustion synthesis technique with variable ratios of Co and Mn to investigate the surface property and electrocatalytic characteristics (stability and activity of catalyst) for methanol oxidation reaction (MOR), oxygen reduction reaction (ORR), and oxygen evolution reaction (OER) under alkaline medium (KOH). The structural, chemical, and morphological characterizations of the synthesized catalyst were performed by XRD, FTIR, SEM, TEM, and XPS techniques as a function of the Mn:Co elemental ratio. The time–temperature profile during the combustion process was also monitored to study the completion of the combustion reaction and to understand its impact on the structure of the perovskites. SEM/EDX and XPS analysis confirmed the formation of the targeted ratio of Mn and Co on the catalyst. Cyclic voltammetry (CV) and linear sweep voltammetry (LSV) results revealed that all perovskite samples with different Co:Mn ratios were active for ORR, OER, and MOR. The LaMnxCo1-xO3 perovskite with x = 0.4 showed the highest current density compared to the other samples toward all the electrocatalytic reactions under alkaline reaction conditions.</p> <p>Graphical Abstract</p><h2>Other Information</h2> <p> Published in: Electrocatalysis<br> License: <a href="https://creativecommons.org/licenses/by/4.0" target="_blank">https://creativecommons.org/licenses/by/4.0</a><br>See article on publisher's website: <a href="http://dx.doi.org/10.1007/s12678-022-00772-0" target="_blank">http://dx.doi.org/10.1007/s12678-022-00772-0</a></p>2022-11-22T21:15:16ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1007/s12678-022-00772-0https://figshare.com/articles/journal_contribution/Highly_Active_Lanthanum_Perovskite_Electrocatalysts_LaMnxCo1-xO3_0_x_1_by_Tuning_the_Mn_Co_Ratio_for_ORR_and_MOR_in_Alkaline_Medium/21597720CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/215977202022-11-22T21:15:16Z |
| spellingShingle | Highly Active Lanthanum Perovskite Electrocatalysts (LaMnxCo1-xO3 (0 ≤ x ≤ 1)) by Tuning the Mn:Co Ratio for ORR and MOR in Alkaline Medium Sadiyah Shafath (14152014) Physical chemistry Electrochemistry |
| status_str | publishedVersion |
| title | Highly Active Lanthanum Perovskite Electrocatalysts (LaMnxCo1-xO3 (0 ≤ x ≤ 1)) by Tuning the Mn:Co Ratio for ORR and MOR in Alkaline Medium |
| title_full | Highly Active Lanthanum Perovskite Electrocatalysts (LaMnxCo1-xO3 (0 ≤ x ≤ 1)) by Tuning the Mn:Co Ratio for ORR and MOR in Alkaline Medium |
| title_fullStr | Highly Active Lanthanum Perovskite Electrocatalysts (LaMnxCo1-xO3 (0 ≤ x ≤ 1)) by Tuning the Mn:Co Ratio for ORR and MOR in Alkaline Medium |
| title_full_unstemmed | Highly Active Lanthanum Perovskite Electrocatalysts (LaMnxCo1-xO3 (0 ≤ x ≤ 1)) by Tuning the Mn:Co Ratio for ORR and MOR in Alkaline Medium |
| title_short | Highly Active Lanthanum Perovskite Electrocatalysts (LaMnxCo1-xO3 (0 ≤ x ≤ 1)) by Tuning the Mn:Co Ratio for ORR and MOR in Alkaline Medium |
| title_sort | Highly Active Lanthanum Perovskite Electrocatalysts (LaMnxCo1-xO3 (0 ≤ x ≤ 1)) by Tuning the Mn:Co Ratio for ORR and MOR in Alkaline Medium |
| topic | Physical chemistry Electrochemistry |