Scalable synthesis of MOFs-derived ZnO/C nanohybrid: efficient electrocatalyst for oxygen evolution reaction in alkaline medium

Munawar, Tauseef; Bashir, Ambreen; Mukhtar, Faisal; Nadeem, Muhammad Shahid; Manzoor, Sumaira; Ashiq, Muhammad Naeem; Al-Ghamdi, Sami G.; Koç, Muammer; Iqbal, Faisal

doi:10.1007/s43207-023-00319-z

Cited by 5 publications

(1 citation statement)

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“…As a kind of wide bandgap compound, the bandgap of CeO 2 ranges from 2.58 to 3.26 eV. [55,56] However, the bandgap of grown 2D CeO 2 is 2.95 eV (Figure S6, Supporting Information). The peaks at 417 nm in PL spectrum is ascribed to surface defects existing between Ce 4f and O 2p level.…”

Section: Resultsmentioning

confidence: 99%

Lattice Matching Engineering Driven Growth of Large‐Area 2D CeO₂ for High‐Performance Photodetection

Chen,

Yu Chen,

et al. 2023

Adv Materials Inter

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Few rare‐earth (RE) atoms incorporated in lattice greatly tunned the optical, electrical, magnetic, and catalytic performance of doped crystal through the peculiar atomic electron structure of RE. The dimensionality scale‐down of RE oxides can further promote their unique traits and broaden their applications. The UV photodetection performance of (111) oriented CeO2 thin film is limited by the existence of grain boundaries, defects, and strains. Consequently, single‐crystal 2D CeO2 is promising for photodetection as it lacks of grain boundaries and defects. However, the synthesis of large‐sized high‐quality 2D CeO2 with lateral dimensions over 100 µm is challenging. In this work, a 3.9 nm thick CeO2 single crystal with 120 µm lateral size is synthesized over a sapphire substrate through a salt‐assisted chemical vapor deposition method, in which an intermediate insulating CeAlO3 layer is formed between the substrate and 2D CeO2 to enhance the crystal lattice matching and therefore facilitates the large area growth. The photodetector based on 2D CeO2 exhibits a photo response from 395 to 532 nm, possibly ascribed to a micro‐strain narrowed bandgap induced at the heterointerface. The photoresponsivity reaches 43.6 A W−1 while the detectivity reaches 7.58 × 1011 Jones under the 395 nm laser irradiation. Besides, the sub‐ms switching kinetics is achieved without gating bias, which is significantly improved over other reported RE oxides‐based photodetectors. This work demonstrates the possibility of the synthesis of large‐size high‐quality 2D RE oxides and their strong potential in high‐performance optoelectronic devices.

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Section: Resultsmentioning

confidence: 99%

Lattice Matching Engineering Driven Growth of Large‐Area 2D CeO₂ for High‐Performance Photodetection

Chen,

Yu Chen,

et al. 2023

Adv Materials Inter

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Development of robust dual-functional NiX (X: Fe, TiO2) electrocatalysts via atmospheric plasma spray for efficient water splitting applications

Narayanan,

Vijay Dhanabal,

Shanmugavelayutham

2024

International Journal of Hydrogen Energy

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Defect engineered ternary metal spinel-type Ni-Fe-Co oxide as bifunctional electrocatalyst for overall electrochemical water splitting

Jesudass,

Surendran,

Moon

et al. 2024

Journal of Colloid and Interface Science

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Scalable synthesis of MOFs-derived ZnO/C nanohybrid: efficient electrocatalyst for oxygen evolution reaction in alkaline medium

Cited by 5 publications

References 83 publications

Lattice Matching Engineering Driven Growth of Large‐Area 2D CeO₂ for High‐Performance Photodetection

Lattice Matching Engineering Driven Growth of Large‐Area 2D CeO₂ for High‐Performance Photodetection

Development of robust dual-functional NiX (X: Fe, TiO2) electrocatalysts via atmospheric plasma spray for efficient water splitting applications

Defect engineered ternary metal spinel-type Ni-Fe-Co oxide as bifunctional electrocatalyst for overall electrochemical water splitting

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Scalable synthesis of MOFs-derived ZnO/C nanohybrid: efficient electrocatalyst for oxygen evolution reaction in alkaline medium

Cited by 5 publications

References 83 publications

Lattice Matching Engineering Driven Growth of Large‐Area 2D CeO2 for High‐Performance Photodetection

Lattice Matching Engineering Driven Growth of Large‐Area 2D CeO2 for High‐Performance Photodetection

Development of robust dual-functional NiX (X: Fe, TiO2) electrocatalysts via atmospheric plasma spray for efficient water splitting applications

Defect engineered ternary metal spinel-type Ni-Fe-Co oxide as bifunctional electrocatalyst for overall electrochemical water splitting

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Lattice Matching Engineering Driven Growth of Large‐Area 2D CeO₂ for High‐Performance Photodetection

Lattice Matching Engineering Driven Growth of Large‐Area 2D CeO₂ for High‐Performance Photodetection