Fabrication of ultrathin lily-like NiCo2O4 nanosheets via mooring NiCo bimetallic oxide on waste biomass-derived carbon for highly efficient removal of phenolic pollutants

Xin, Li; Yang, Zhiyu; Wu, Guosheng; Huang, Yizhe; Zheng, Zhikeng; Garcés, Hector F.; Yan, Kai

doi:10.1016/j.cej.2022.136066

Cited by 51 publications

(11 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By Gaussian fitting method, Ni 2 p spectrum showed two spin‐orbit doublets at 873.3 and 856.1 eV correspond to the Ni 2 p 1/2 and Ni 2 p 3/2 signals in Figure S5a 38 . In Figure S5b, the binding energy of 787.8 and 780.8 eV was deconvolved to the Co 2 p 1/2 and Co 2 p 3/2 33,39 . The O1 s spectrum (Figure S5c) was well fitted into two main peaks.…”

Section: Resultsmentioning

confidence: 92%

See 1 more Smart Citation

Anchoring hydroxyl intermediate on NiCo(OOH)_x nanosheets to enable highly efficient electrooxidation of benzyl alcohols

Zhang

Liu

et al. 2023

AIChE Journal

Self Cite

View full text Add to dashboard Cite

Selective oxidation of alcohols to the carboxylic acid plays an important role in the production of valuable chemicals. Herein, NiCo hydroxide (NiCo(OOH) x ) nanosheets with a thickness of $4 nm were controllably fabricated in a facile way efficient for the electrooxidation of benzyl alcohol (BAL) to benzoic acid (BAD).Mechanistic studies confirmed the hydroxyl active intermediate ( OH*) generated on the surface of NiCo(OOH) x nanosheets through operando electrochemical impedance spectroscopy and the electron paramagnetic resonance spectroscopy analysis during the electrooxidation process. Importantly, we discovered that the OH* was crucial to boost the selective oxidation of BAL by attacking the hydroxyl end group to achieve carboxylic acid. The early onset potential of 1.16 V RHE in the presence of BAL was below 1.23 V RHE for oxygen evolution reaction.The rotating ring-disk electrode further revealed that the electrocatalytic BAL oxidation reaction occurred earlier in the oxygen evolution reaction. In 150 mM BAL, NiCo(OOH) x nanosheets generated a high BAD selectivity of >99% and full conversion of BAL in 3 h. The experimental and theoretical calculation revealed that the dominant pathway of BAL oxidation was the interaction between nucleophilic BAL with OH* to form BAL-OH* directly by dehydrogenates, thereby producing BAD with high efficiency. This research sheds mechanism insights on the electrocatalytic alcohols oxidation reaction.

show abstract

Section: Resultsmentioning

confidence: 92%

“…FigureS5b, the binding energy of 787.8 and 780.8 eV was deconvolved to the Co 2p 1/2 and Co 2p 3/2 33,39. The O1s spectrum (FigureS5c) was well fitted into two main peaks.…”

mentioning

confidence: 94%

Anchoring hydroxyl intermediate on NiCo(OOH)_x nanosheets to enable highly efficient electrooxidation of benzyl alcohols

Zhang

Liu

et al. 2023

AIChE Journal

Self Cite

View full text Add to dashboard Cite

show abstract

“…After UV–vis light irradiation for 10 min, the spectra of both samples showed obvious DMPO– • OH typical quadruple peaks and DMPO– • O 2 – typical six-fold peaks. Intensity in signals of the • OH and • O 2 – species on Pt/CeO 2 /TiO 2 was stronger than that on Pt/TiO 2 , demonstrating that the Pt/CeO 2 /TiO 2 catalyst possessed stronger redox ability than the Pt/TiO 2 catalyst …”

Section: Resultsmentioning

confidence: 97%

“…• OH typical quadruple peaks and DMPO− • O 2 − typical six-fold peaks. Intensity in signals of the • OH and • O 2− species on Pt/CeO 2 /TiO 2 was stronger than that on Pt/TiO 2 , demonstrating that the Pt/ CeO 2 /TiO 2 catalyst possessed stronger redox ability than the Pt/TiO 2 catalyst 40. It is generally believed that O 2 is activated through thetransformation process of O 2 → O 2 − → O 2 2− → O − → O 2− 41.…”

mentioning

confidence: 99%

Synergistic Effect of Reactive Oxygen Species in Photothermocatalytic Removal of VOCs from Cooking Oil Fumes over Pt/CeO₂/TiO₂

Feng

Wang

et al. 2022

Environ. Sci. Technol.

View full text Add to dashboard Cite

The volatile organic compounds (VOCs) from cooking oil fumes are very complex and do harm to humans and the environment. Herein, we develop the high-efficiency and energy-saving synergistic photothermocatalytic oxidation approach to eliminate the mixture of heptane and hexanal, the representative VOCs with high concentrations in cooking oil fumes. The Pt/ CeO 2 /TiO 2 catalyst with nanosized Pt particles was prepared by the simple hydrothermal and impregnation methods, and the physicochemical properties of the catalyst were measured using numerous techniques. The Pt/CeO 2 /TiO 2 catalyst eliminated the VOC mixture at low light intensity (100 mW cm −2 ) and low temperature (200 °C). In addition, it showed 25 h of catalytic stability and water resistance (water concentration up to 20 vol %) at 140 or 190 °C. It is concluded that O 2 picked up the electrons from Pt to generate the • O 2 − species, which were transformed to the O 2 2− and O − species after the rise in temperature. In the presence of water, the • OH species induced by light irradiation on the catalyst surface and the • OOH species formed via the thermal reaction were both supplementary oxygen species for VOC oxidation. The synergistic interaction of photo-and thermocatalysis was generated by the reactive oxygen species.

show abstract

“…Developing a green and efficient catalytic system to improve conversion efficiency and reduce environmental pollution is crucial ( Akhtar and Amin 2011 ; Alonso et al, 2013 ; Wang et al, 2019 ; Yi et al, 2019 ; Liu et al, 2021b ). Moreover, using a biorefinery approach to achieve the integration of the process of biomass conversion with the production of biofuels and chemicals is more practical ( Gallezot 2012 ; Huang et al, 2020 ; Li et al, 2021 ; Li et al, 2022a ; Li et al, 2022b ). This special issue mainly focuses on the pretreatment of biomass, conversion of biomass waste or biomass-based sources or platform chemicals to value-added products and biofuels, highly valued materials in various environmental remediation.…”

mentioning

confidence: 99%

Editorial: Biomass Resources Utilization

Yan

2022

Front. Chem.

Self Cite

View full text Add to dashboard Cite

Fabrication of ultrathin lily-like NiCo2O4 nanosheets via mooring NiCo bimetallic oxide on waste biomass-derived carbon for highly efficient removal of phenolic pollutants

Cited by 51 publications

References 58 publications

Anchoring hydroxyl intermediate on NiCo(OOH)_x nanosheets to enable highly efficient electrooxidation of benzyl alcohols

Anchoring hydroxyl intermediate on NiCo(OOH)_x nanosheets to enable highly efficient electrooxidation of benzyl alcohols

Synergistic Effect of Reactive Oxygen Species in Photothermocatalytic Removal of VOCs from Cooking Oil Fumes over Pt/CeO₂/TiO₂

Editorial: Biomass Resources Utilization

Contact Info

Product

Resources

About

Fabrication of ultrathin lily-like NiCo2O4 nanosheets via mooring NiCo bimetallic oxide on waste biomass-derived carbon for highly efficient removal of phenolic pollutants

Cited by 51 publications

References 58 publications

Anchoring hydroxyl intermediate on NiCo(OOH)x nanosheets to enable highly efficient electrooxidation of benzyl alcohols

Anchoring hydroxyl intermediate on NiCo(OOH)x nanosheets to enable highly efficient electrooxidation of benzyl alcohols

Synergistic Effect of Reactive Oxygen Species in Photothermocatalytic Removal of VOCs from Cooking Oil Fumes over Pt/CeO2/TiO2

Editorial: Biomass Resources Utilization

Contact Info

Product

Resources

About

Anchoring hydroxyl intermediate on NiCo(OOH)_x nanosheets to enable highly efficient electrooxidation of benzyl alcohols

Anchoring hydroxyl intermediate on NiCo(OOH)_x nanosheets to enable highly efficient electrooxidation of benzyl alcohols

Synergistic Effect of Reactive Oxygen Species in Photothermocatalytic Removal of VOCs from Cooking Oil Fumes over Pt/CeO₂/TiO₂