Remarkable formaldehyde photo-oxidation efficiency of Zn2SnO4 co-modified by Mo doping and oxygen vacancies

Ren, Zeyu; Chen, Bangfu; Li, Yuhan; Carabineiro, Sónia A.C.; Duan, Youyu; Dong, Fan

doi:10.1016/j.seppur.2023.123202

Cited by 16 publications

(5 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These observations convey that the substitution of Mo 6+ ions lead to the redistribution of local electronic structure which affects the interaction of adjacent Ni‐O and Co‐O bonds, and results in oxygen vacancies in their adjacent regions to maintain charge balance. [ 35 ]…”

Section: Resultsmentioning

confidence: 99%

“…These observations convey that the substitution of Mo 6+ ions lead to the redistribution of local electronic structure which affects the interaction of adjacent Ni-O and Co-O bonds, and results in oxygen vacancies in their adjacent regions to maintain charge balance. [35] Figure 4 displays the morphology and microstructure of NiCo-LDH/CC and MoNiCo-LDH-0.05/CC. A porous crosslinked nanosheet network on CC is observed for NiCo-LDH/CC (Figure 4a,b) and MoNiCo-LDH-0.05/CC (Figure 4c,d).…”

Section: Physicochemical Characterizationmentioning

confidence: 99%

See 1 more Smart Citation

Regulating the Oxygen Vacancy and Electronic Structure of NiCo Layered Double Hydroxides by Molybdenum Doping for High‐Power Hybrid Supercapacitors

Ding,

Yan,

Wang

et al. 2023

Small

View full text Add to dashboard Cite

Amelioration of nickel‐cobalt layered double hydroxides (NiCo‐LDH) with a high specific theoretical capacitance is of great desire for high‐power supercapacitors. Herein, a molybdenum (Mo) doping strategy is proposed to improve the charge‐storage performance of NiCo‐LDH nanosheets growing on carbon cloth (CC) via a rapid microwave process. The regulation of the electronic structure and oxygen vacancy of the LDH is consolidated by the density functional theory (DFT) calculation, which demonstrates that Mo doping narrows the band gap, reduces the formation energy of hydroxyl vacancies, and promotes ionic and charge transfer as well as electrolyte adsorption on the electrode surface. The optimal Mo‐doped NiCo‐LDH electrode (MoNiCo‐LDH‐0.05/CC) has an amazing specific capacity of 471.1 mA h g−1 at 1 A g−1, and excellent capacity retention of 84.8% at 32 A g−1, far superior to NiCo‐LDH/CC (258.3 mA h g−1 and 76.4%). The constructed hybrid supercapacitor delivers an energy density of 103.3 W h kg−1 at a power density of 750 W kg−1 and retains the cycle retention of 85.2% after 5000 cycles. Two assembled devices in series can drive thirty LED lamps, revealing a potential application prospect of the rationally synthesized MoNiCo‐LDH/CC as an energy‐storage electrode material.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Physicochemical Characterizationmentioning

confidence: 99%

Regulating the Oxygen Vacancy and Electronic Structure of NiCo Layered Double Hydroxides by Molybdenum Doping for High‐Power Hybrid Supercapacitors

Ding,

Yan,

Wang

et al. 2023

Small

View full text Add to dashboard Cite

show abstract

“…Furthermore, the consistent provision of O 2 leads to O 2 surrounding OVs of Mo-doped Zn 2 SnO 4 surface, supplementing the depleted surface-active oxygen species, ultimately expediting the oxidation of formate species, and significantly boosting the photocatalytic oxidation of HCHO. 140…”

Section: Application In Photocatalysismentioning

confidence: 99%

“…138 (c) Band diagram of the Co 2+ -doped ZnO photocatalyst 139. (d) Reaction mechanism for photocatalytic HCHO oxidation 140.…”

mentioning

confidence: 99%

The roles of the oxygen vacancies caused by the ion doping method in catalytic materials and their applications in advanced oxidation processes

Nie,

Lai,

et al. 2023

New J. Chem.

View full text Add to dashboard Cite

show abstract

“…They modified the Zn 2 SnO 4 nanostructure with Pt to improve the photocatalytic performance of H 2 production. Ren et al synthesized Zn 2 SnO 4 with Mo doping and oxygen vacancies with high photocatalytic activity on HCHO oxidation [27]. Mo doping and the introduction of oxygen vacancies would extend the visible response, promote the separation of charge carriers, and induce new reactive sites for the ZTO-based photocatalysts.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Ni3+/Co3+ Ion-Doped Zn2SnO4 Microspheres toward Efficient Photocatalytic CO2 Reduction

Yu,

Zhang,

Lin

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

The photocatalytic reduction of CO2 into hydrocarbons is a promising solution for the energy crisis and greenhouse gas emissions. Thus, the fabrication and development of a new type of photocatalyst is of great importance for the practical application of CO2 reduction. Herein, we report a facile synthesis of Zn2SnO4 (ZTO) microspheres doped with Co3+ ions or Ni3+ ions. The doped Co3+/Ni3+ ions substitute the lattice Zn/Sn ions. DFT calculations and experimental results reveal that the doped Co3+/Ni3+ ions would induce new doping energy levels in the band gap, extend the light response from the UV to the visible region, and separate the charge carriers. As a result, compared with pure ZTO, the photocatalytic activity of a CO2 reduction into CH4 is significantly improved for Co-doped ZTO (Co-ZTO) and Ni-doped ZTO (Ni-ZTO).

show abstract

Remarkable formaldehyde photo-oxidation efficiency of Zn2SnO4 co-modified by Mo doping and oxygen vacancies

Cited by 16 publications

References 62 publications

Regulating the Oxygen Vacancy and Electronic Structure of NiCo Layered Double Hydroxides by Molybdenum Doping for High‐Power Hybrid Supercapacitors

Regulating the Oxygen Vacancy and Electronic Structure of NiCo Layered Double Hydroxides by Molybdenum Doping for High‐Power Hybrid Supercapacitors

The roles of the oxygen vacancies caused by the ion doping method in catalytic materials and their applications in advanced oxidation processes

Facile Synthesis of Ni3+/Co3+ Ion-Doped Zn2SnO4 Microspheres toward Efficient Photocatalytic CO2 Reduction

Contact Info

Product

Resources

About