Benzyl Alcohol-Mediated Versatile Method to Fabricate Nonstoichiometric Metal Oxide Nanostructures

Qamar, Mohammad; Adam, Alaaldin; Azad, Abdul‐Majeed; Kim, Yong-Wah

doi:10.1021/acsami.7b09515

Cited by 11 publications

(7 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[ 19 ] The electronic and chemical properties of the metal oxides are invariably a function of surface or bulk defects, whose nature and concentration are predominantly determined by the synthetic methods. [ 20 ] Various methods have been used to create oxygen vacancies during synthesis or post‐synthesis treatment, such as thermal annealing in oxygen‐deficient environment, hydrogen treatment, electrochemical reduction and so on. [ 12,21 ] In this section, several representative approaches of creating oxygen vacancies are summarized (Table 1).…”

Section: Oxygen Defects Tailoring In Nanostructured Metal Oxidesmentioning

confidence: 99%

Oxygen Defects in Nanostructured Metal‐Oxide Gas Sensors: Recent Advances and Challenges^†

Ding

Liu

et al. 2020

Chin. J. Chem.

View full text Add to dashboard Cite

Defect engineering has been the most promising strategy to modulate the surface microstructure and electronic structure of the metal oxides, which will govern the efficiency of a given oxide for the applications in heterogeneous catalysis, energy storage and conversion fields, and gas sensing. This review summarizes recent research advances on understanding the role of oxygen vacancies of the metal oxides in gas sensing. First, different strategies for oxygen vacancy productions are summarized and compared. Then, the proper characterization techniques for oxygen vacancy are introduced. Importantly, the structure-activity relationships between vacancy engineering and gas sensing ability are further illustrated coupling the experimental results and theoretical studies. Finally, the key challenges and prospects regarding defect engineering in gas sensing are highlighted. Wenjie Ding (left) obtained his bachelor degree from Beijing Forestry University in 2018. Currently, he is pursuing his master degree under the supervision of Associate Professor Jiajia Liu in Beijing Instituted of Technology, China. His current research interests mainly focus on the synthesis of nanomaterials for the application of gas sensing. Dr. Jiajia Liu (middle) received her PhD degree in 2010 from Department of Chemical & Biomolecular Engineering of National University of Singapore, Singapore. Currently, she is Associate Professor in School of Materials and Engineering, Beijing Institute of Technology, China. Her current research interest is the development of metal oxide nanostructures and their applications in sensor, catalysis, and optoelectronics. Jiatao Zhang (right) was born in 1975. He earned his PhD from the Department of Chemistry, Tsinghua University, in 2006. Currently, he is Xu Teli Professor in the School of Materials and Engineering, BIT. He was awarded the Excellent Young Scientist foundation of NSFC in 2013. He also serves as the director of Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications. His current research interest is inorganic chemistry of semiconductor-based hybrid nanostructures with novel optical, electronic properties for the applications in energy conversion and storage, catalysis, optoelectronics and biology.

show abstract

Section: Oxygen Defects Tailoring In Nanostructured Metal Oxidesmentioning

confidence: 99%

Oxygen Defects in Nanostructured Metal‐Oxide Gas Sensors: Recent Advances and Challenges^†

Ding

Liu

et al. 2020

Chin. J. Chem.

View full text Add to dashboard Cite

show abstract

“…Interestingly, liquid-phase routes enable controlling the nucleation and growth of crystals by screening the appropriate reaction pathway at the molecular level. Therefore, it is possible to prepare crystals with uniform size and well-defined morphologies with homogeneity [26]. Generally, strong reducing agents are required during the liquid-phase reaction process.…”

Section: P-nitrophenol (P-npmentioning

confidence: 99%

Size-controllable synthesis of zinc ferrite/reduced graphene oxide aerogels: efficient electrochemical sensing of p-nitrophenol

Wei¹,

Hu²,

Chen³

et al. 2020

Nanotechnology

View full text Add to dashboard Cite

In this study, a nonaqueous method for the synthesis of size-controlled highly crystalline zinc ferrite/reduced graphene oxide (ZFO/rGO) aerogel was provided by using benzyl alcohol as the medium. In our findings, benzyl alcohol was introduced not only as the solvent, but the structure-directing agent and strong reducing agent during the nucleation and growth of ZnFe2O4 nanoparticles (NPs). The characterization analysis indicated that ZnFe2O4 NPs were immobilized on the multilayer rGO with a controllable size of 12 nm. Moreover, the 3D ZFO/rGO aerogel shows excellent electrochemical property as a facile electrochemical sensor for the detection of p-nitrophenol (p-NP). The ZFO/rGO electrochemical sensing offers the advantages of wide linear range (1–500 μmol l−1), excellent sensitivity (23.985 mA mM−1 cm−2), good stability and selectivity (<8.8%). In addition, the possible reaction mechanism of 3D ZFO/rGO aerogel was explained during the detection process under acidic condition. Significantly, our results not only provided insight into the possible reaction mechanism of 3D ZFO/rGO nanocomposite, but proposed the way for the synthesis of highly crystalline materials through a benzyl alcohol-mediated method.

show abstract

“…The in‐situ generation of Co/CoO is achieved through a soft chemistry method that utilises benzyl alcohol (BA) as both a reducing agent and solvent. BA functions as a reducing agent and is commonly employed to generate metal oxides that exhibit intrinsic non‐stoichiometry in a wide range of organic‐inorganic hybrid nanomaterials [27–31] . The synthesized photocatalysts were characterized by TEM, FE‐SEM, FT‐IR, XRD, XPS, etc.…”

Section: Introductionmentioning

confidence: 99%

“…BA functions as a reducing agent and is commonly employed to generate metal oxides that exhibit intrinsic non-stoichiometry in a wide range of organicinorganic hybrid nanomaterials. [27][28][29][30][31] The synthesized photocatalysts were characterized by TEM, FE-SEM, FT-IR, XRD, XPS, etc. Subsequently, they were employed as a photoanode to augment photoelectrochemical water oxidation.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a Novel Co/CoO@Fe₂V₄O₁₃ Composite Catalyst as a Photoanode for Enhanced Photoelectrochemical Water Oxidation

Asim,

Khan

2023

Chemistry An Asian Journal

View full text Add to dashboard Cite

Herein, the synthesis of a novel composite photocatalyst, Co/CoO@Fe2V4O13, is reported by the deposition of CoO metal oxide nanoparticles on the surface of Fe2V4O13 bimetallic oxide. The synthesised photocatalyst exhibited a band gap of roughly 1.8 eV, rendering it responsive to the complete visible light spectrum of the sun, thereby enabling optimal absorption of solar radiation. The Co/CoO@Fe2V4O13 composites demonstrated an enhanced photoelectrochemical water oxidation capacity compared to pristine Fe2V4O13 when exposed to visible light. The enhanced performance is attributed primarily to the creation of a p‐n junction at the interface of Fe2V4O13 and Co/CoO, as well as the Z‐scheme charge transfer mechanism, which aids in the separation and transfer of photogenerated charge carriers. Light absorption by Co nanoparticles via plasmonic excitation and intra‐ and inter‐band transitions in the composite structure is also likely, resulting in increased composite efficiency. Our findings indicate that Co/CoO@Fe2V4O13 composites show promising performance for solar water splitting applications and offer new perspectives for designing effective photocatalysts.

show abstract

Benzyl Alcohol-Mediated Versatile Method to Fabricate Nonstoichiometric Metal Oxide Nanostructures

Cited by 11 publications

References 48 publications

Oxygen Defects in Nanostructured Metal‐Oxide Gas Sensors: Recent Advances and Challenges^†

Oxygen Defects in Nanostructured Metal‐Oxide Gas Sensors: Recent Advances and Challenges^†

Size-controllable synthesis of zinc ferrite/reduced graphene oxide aerogels: efficient electrochemical sensing of p-nitrophenol

Fabrication of a Novel Co/CoO@Fe₂V₄O₁₃ Composite Catalyst as a Photoanode for Enhanced Photoelectrochemical Water Oxidation

Contact Info

Product

Resources

About

Benzyl Alcohol-Mediated Versatile Method to Fabricate Nonstoichiometric Metal Oxide Nanostructures

Cited by 11 publications

References 48 publications

Oxygen Defects in Nanostructured Metal‐Oxide Gas Sensors: Recent Advances and Challenges†

Oxygen Defects in Nanostructured Metal‐Oxide Gas Sensors: Recent Advances and Challenges†

Size-controllable synthesis of zinc ferrite/reduced graphene oxide aerogels: efficient electrochemical sensing of p-nitrophenol

Fabrication of a Novel Co/CoO@Fe2V4O13 Composite Catalyst as a Photoanode for Enhanced Photoelectrochemical Water Oxidation

Contact Info

Product

Resources

About

Oxygen Defects in Nanostructured Metal‐Oxide Gas Sensors: Recent Advances and Challenges^†

Oxygen Defects in Nanostructured Metal‐Oxide Gas Sensors: Recent Advances and Challenges^†

Fabrication of a Novel Co/CoO@Fe₂V₄O₁₃ Composite Catalyst as a Photoanode for Enhanced Photoelectrochemical Water Oxidation