Regulating Lattice Oxygen of Co3O4/CeO2 Heterojunction Nanonetworks for Enhanced Oxygen Evolution
Developing efficient and cost‐effective electrocatalysts as substitutes for noble metals remains a big challenge, which demands significant advancements in both material designing and mechanistic understanding. Herein, Co3O4/CeO2 heterojunction nanonetworks are successfully synthesized through metal...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2023-12-01
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| Series: | Advanced Energy & Sustainability Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/aesr.202300123 |
| _version_ | 1797400936089387008 |
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| author | Ziyu Zhao Meng Yu Yawen Liu Tao Zeng Rongkai Ye Yuchan Liu Jianqiang Hu Aiqing Li |
| author_facet | Ziyu Zhao Meng Yu Yawen Liu Tao Zeng Rongkai Ye Yuchan Liu Jianqiang Hu Aiqing Li |
| author_sort | Ziyu Zhao |
| collection | DOAJ |
| description | Developing efficient and cost‐effective electrocatalysts as substitutes for noble metals remains a big challenge, which demands significant advancements in both material designing and mechanistic understanding. Herein, Co3O4/CeO2 heterojunction nanonetworks are successfully synthesized through metal organic framework precursor. Notably, Co3O4/CeO2 heterojunctions can effectively regulate electronic structure of Co3O4, thus inducing oxygen atom from Co3O4 lattice to participating in oxygen evolution reaction (OER) via lattice oxygen‐mediated mechanism, which reduces reaction overpotential. Additionally, the porous network structure can facilitate electrolyte transfer and provide more active sites for electrocatalytic reactions. Consequently, Co3O4/CeO2 heterojunction nanonetworks exhibit great electrocatalytic performance and high durability, requiring only an OER overpotential of 259 mV at current density of 100 mA cm−2 in 1 M KOH, markedly outperforming Co3O4 nanocatalysts (309 mV) and showing promising potential as substitutable non‐noble OER catalysts. |
| first_indexed | 2024-03-09T02:01:39Z |
| format | Article |
| id | doaj.art-45f63927c28546059be054706d229eae |
| institution | Directory Open Access Journal |
| issn | 2699-9412 |
| language | English |
| last_indexed | 2024-03-09T02:01:39Z |
| publishDate | 2023-12-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Energy & Sustainability Research |
| spelling | doaj.art-45f63927c28546059be054706d229eae2023-12-08T03:59:29ZengWiley-VCHAdvanced Energy & Sustainability Research2699-94122023-12-01412n/an/a10.1002/aesr.202300123Regulating Lattice Oxygen of Co3O4/CeO2 Heterojunction Nanonetworks for Enhanced Oxygen EvolutionZiyu Zhao0Meng Yu1Yawen Liu2Tao Zeng3Rongkai Ye4Yuchan Liu5Jianqiang Hu6Aiqing Li7Division of Nephrology, Nanfang Hospital Southern Medical University National Clinical Research Center for Kidney Disease State Key Laboratory of Organ Failure Research Guangdong Provincial Institute of Nephrology Guangdong Provincial Key Laboratory of Renal Failure Research Guangzhou 510515 ChinaSchool of Chemistry and Chemical Engineering Key Laboratory of Fuel Cell Technology of Guangdong Province South China University of Technology Guangzhou 510640 ChinaSchool of Chemistry and Chemical Engineering Key Laboratory of Fuel Cell Technology of Guangdong Province South China University of Technology Guangzhou 510640 ChinaDivision of Nephrology, Nanfang Hospital Southern Medical University National Clinical Research Center for Kidney Disease State Key Laboratory of Organ Failure Research Guangdong Provincial Institute of Nephrology Guangdong Provincial Key Laboratory of Renal Failure Research Guangzhou 510515 ChinaSchool of Chemistry and Chemical Engineering Key Laboratory of Fuel Cell Technology of Guangdong Province South China University of Technology Guangzhou 510640 ChinaSchool of Chemistry and Chemical Engineering Key Laboratory of Fuel Cell Technology of Guangdong Province South China University of Technology Guangzhou 510640 ChinaSchool of Chemistry and Chemical Engineering Key Laboratory of Fuel Cell Technology of Guangdong Province South China University of Technology Guangzhou 510640 ChinaDivision of Nephrology, Nanfang Hospital Southern Medical University National Clinical Research Center for Kidney Disease State Key Laboratory of Organ Failure Research Guangdong Provincial Institute of Nephrology Guangdong Provincial Key Laboratory of Renal Failure Research Guangzhou 510515 ChinaDeveloping efficient and cost‐effective electrocatalysts as substitutes for noble metals remains a big challenge, which demands significant advancements in both material designing and mechanistic understanding. Herein, Co3O4/CeO2 heterojunction nanonetworks are successfully synthesized through metal organic framework precursor. Notably, Co3O4/CeO2 heterojunctions can effectively regulate electronic structure of Co3O4, thus inducing oxygen atom from Co3O4 lattice to participating in oxygen evolution reaction (OER) via lattice oxygen‐mediated mechanism, which reduces reaction overpotential. Additionally, the porous network structure can facilitate electrolyte transfer and provide more active sites for electrocatalytic reactions. Consequently, Co3O4/CeO2 heterojunction nanonetworks exhibit great electrocatalytic performance and high durability, requiring only an OER overpotential of 259 mV at current density of 100 mA cm−2 in 1 M KOH, markedly outperforming Co3O4 nanocatalysts (309 mV) and showing promising potential as substitutable non‐noble OER catalysts.https://doi.org/10.1002/aesr.202300123electrocatalysisheterojunctionsmetallic oxidesoxygen evolution reactionrare-earth doping |
| spellingShingle | Ziyu Zhao Meng Yu Yawen Liu Tao Zeng Rongkai Ye Yuchan Liu Jianqiang Hu Aiqing Li Regulating Lattice Oxygen of Co3O4/CeO2 Heterojunction Nanonetworks for Enhanced Oxygen Evolution Advanced Energy & Sustainability Research electrocatalysis heterojunctions metallic oxides oxygen evolution reaction rare-earth doping |
| title | Regulating Lattice Oxygen of Co3O4/CeO2 Heterojunction Nanonetworks for Enhanced Oxygen Evolution |
| title_full | Regulating Lattice Oxygen of Co3O4/CeO2 Heterojunction Nanonetworks for Enhanced Oxygen Evolution |
| title_fullStr | Regulating Lattice Oxygen of Co3O4/CeO2 Heterojunction Nanonetworks for Enhanced Oxygen Evolution |
| title_full_unstemmed | Regulating Lattice Oxygen of Co3O4/CeO2 Heterojunction Nanonetworks for Enhanced Oxygen Evolution |
| title_short | Regulating Lattice Oxygen of Co3O4/CeO2 Heterojunction Nanonetworks for Enhanced Oxygen Evolution |
| title_sort | regulating lattice oxygen of co3o4 ceo2 heterojunction nanonetworks for enhanced oxygen evolution |
| topic | electrocatalysis heterojunctions metallic oxides oxygen evolution reaction rare-earth doping |
| url | https://doi.org/10.1002/aesr.202300123 |
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