Liquid-phase growth of platinum nanoparticles on molybdenum trioxide nanosheets: an enhanced catalyst with intrinsic peroxidase-like catalytic activity

Wang, Yixian; Zhang, Xiao; Luo, Zhimin; Huang, Xiao; Tan, Chaoliang; Li, Hai; Zheng, Bing; Li, Bing; Huang, Ying; Yang, Jian; Zong, Yun; Ying, Yibin; Zhang, Hua

doi:10.1039/c4nr04115a

Cited by 87 publications

(57 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Pseudoactive material, such as metal oxides, is one of the most used electrode materials for supercapacitors with high specific capacitance, although it usually exhibits low electrical conductivity and poor cycling performance . For example, MoO 3 has been proven to be promising for energy‐storage applications and is also widely studied in many other research areas . However, the reported MoO 3 materials suffer from low specific capacitance, fast degradation of performance, and limited scalability in synthesis.…”

Section: Methodsmentioning

confidence: 99%

Reduced Graphene Oxide‐Wrapped MoO₃ Composites Prepared by Using Metal–Organic Frameworks as Precursor for All‐Solid‐State Flexible Supercapacitors

et al. 2015

Self Cite

View full text Add to dashboard Cite

from detaching from the graphene surface during the charge/ discharge process, thus resulting in good rate capability and long cycle life. [ 12 ] Recently, metal-organic frameworks (MOFs) have attracted increasing research interest. [ 13 ] In particular, MOFs have been demonstrated as versatile templates and precursors for the synthesis of various porous nanomaterials, [ 14 ] which hold great promise for high-performance electrode materials of energystorage devices. [ 14d,h ] For instance, by using MOFs of MIL-88-Fe, we recently prepared composites of porous Fe 2 O 3 -coated 3D graphene networks, which exhibited excellent performance in lithium-ion batteries. [ 15 ] To the best of our knowledge, there is no report on preparation of graphene-wrapped metal oxides by using MOFs as the precursor.Here, for the fi rst time, we report a novel and convenient way to fabricate the reduced graphene oxide (rGO)-wrapped MoO 3 , referred to as rGO/MoO 3 , by simply mixing molybdenum-based MOFs, [ 16 ] i.e., Mo-MOFs ( Figure S1, Supporting Information), with graphene oxide (GO) sheets followed by the annealing process ( Scheme 1 ). The obtained porous rGO/ MoO 3 composite was then used as the electrode material for fabrication of all-solid-state, fl exible, symmetric supercapacitor devices.Scheme 1 illustrates the preparation of the rGO/MoO 3 composite. Typically, the Mo-MOFs ( Figure S1, Supporting Information) were fi rst mixed with GO aqueous solution to obtain the GO-wrapped Mo-MOFs (GO/Mo-MOFs, Step 1), which was then subjected to a two-step annealing process under Ar and air, respectively, to prepare the rGO-wrapped MoO 3 composite (rGO/MoO 3 ) (Step 2 and 3). During the annealing process, the rGO-wrapped MoO 2 composite (rGO/MoO 2 ) was obtained by annealing GO/Mo-MOFs under an Ar atmosphere (Step 2) since GO was simultaneously thermally reduced to rGO in this step. After the subsequent annealing of rGO/MoO 2 in air, the rGO/MoO 3 composite was obtained (Step 3).Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images of the obtained GO/Mo-MOFs composite clearly indicate that a thin layer of GO sheets with a thickness of ≈20 nm was coated on the surface of Mo-MOFs ( Figure S2A,B, Supporting Information). Compared to the relatively smooth surface of Mo-MOFs ( Figure S1, Supporting Information), many wrinkles and ripples of GO sheets were observed on GO/Mo-MOFs ( Figure S2A,B, Supporting Information), suggesting the successful coating of GO sheets on Mo-MOFs. The X-ray diffraction (XRD) spectra confi rmed the Adv. Mater. 2015, 27, 4695-4701 www.advmat.de www.MaterialsViews.com Adv. Mater. 2015, 27, 4695-4701 www.advmat.de www.MaterialsViews.com Scheme 1. Schematic illustration of the preparation of rGO/MoO 3 composite by using Mo-MOFs as precursor.

show abstract

Section: Methodsmentioning

confidence: 99%

Reduced Graphene Oxide‐Wrapped MoO₃ Composites Prepared by Using Metal–Organic Frameworks as Precursor for All‐Solid‐State Flexible Supercapacitors

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…[211] Further, Pd tetrahedrons were synthesized on MoO 3−x surfaces through a one-pot wet-chemical approach. [214] Recently, the growth of α-Fe 2 O 3 nanorods on surface of α-MoO 3 nanobelts was also realized by a hydrothermal approach for developing xylene gas sensor with high response and low operating temperature. In Ma's work, the epitaxial growth of Au nanocrystals on MoO 3 nanosheets was realized under ultraviolet irradiation by using MoO 3 nanosheets as both electron carriers and sacrificial templates, which were used as homogeneous SERS substrates for constructing a detection platform toward malachite green pigment.…”

Section: Metal Trioxide Nanosheetsmentioning

confidence: 99%

Functionalized Hybridization of 2D Nanomaterials

Guan

Han

2019

Advanced Science

View full text Add to dashboard Cite

The discovery of graphene and subsequent verification of its unique properties have aroused great research interest to exploit diversified graphene‐analogous 2D nanomaterials with fascinating physicochemical properties. Through either physical or chemical doping, linkage, adsorption, and hybridization with other functional species into or onto them, more novel/improved properties are readily created to extend/expand their functionalities and further achieve great performance. Here, various functionalized hybridizations by using different types of 2D nanomaterials are overviewed systematically with emphasis on their interaction formats (e.g., in‐plane or inter plane), synergistic properties, and enhanced applications. As the most intensely investigated 2D materials in the post‐graphene era, transition metal dichalcogenide nanosheets are comprehensively investigated through their element doping, physical/chemical functionalization, and nanohybridization. Meanwhile, representative hybrids with more types of nanosheets are also presented to understand their unique surface structures and address the special requirements for better applications. More excitingly, the van der Waals heterostructures of diverse 2D materials are specifically summarized to add more functionality or flexibility into 2D material systems. Finally, the current research status and faced challenges are discussed properly and several perspectives are elaborately given to accelerate the rational fabrication of varied and talented 2D hybrids.

show abstract

“…Subsequently, Ying and co-workers synthesized platinum NPs with sizes from 1–3 nm and uniformly grew them on a molybdenum trioxide (MoO 3 ) nanosheet surface. It was observed that Pt-MoO 3 have a peroxidase mimic activity [118]. The working principle of the assay performed is shown in Figure 5.…”

Section: Application Of Nanozymes In Colorimetric Sensing Of Glucosementioning

confidence: 99%

“…Colorimetric detection of glucose by using GOx catalyzed reaction ( A ) and Pt-MoO 3 hybrid nanomaterials as catalysts ( B ) [118]. …”

Section: Figurementioning

confidence: 99%

Nano-Engineered Biomimetic Optical Sensors for Glucose Monitoring in Diabetes

Rauf

Nawaz

Badea

et al. 2016

Sensors

View full text Add to dashboard Cite

Diabetes is a rapidly growing disease that can be monitored at an individual level by controlling the blood glucose level, hence minimizing the negative impact of the disease. Significant research efforts have been focused on the design of novel and improved technologies to overcome the limitations of existing glucose analysis methods. In this context, nanotechnology has enabled the diagnosis at the single cell and molecular level with the possibility of incorporation in advanced molecular diagnostic biochips. Recent years have witnessed the exploration and synthesis of various types of nanomaterials with enzyme-like properties, with their subsequent integration into the design of biomimetic optical sensors for glucose monitoring. This review paper will provide insights on the type, nature and synthesis of different biomimetic nanomaterials. Moreover, recent developments in the integration of these nanomaterials for optical glucose biosensing will be highlighted, with a final discussion on the challenges that must be addressed for successful implementation of these nano-devices in the clinical applications is presented.

show abstract

Liquid-phase growth of platinum nanoparticles on molybdenum trioxide nanosheets: an enhanced catalyst with intrinsic peroxidase-like catalytic activity

Cited by 87 publications

References 42 publications

Reduced Graphene Oxide‐Wrapped MoO₃ Composites Prepared by Using Metal–Organic Frameworks as Precursor for All‐Solid‐State Flexible Supercapacitors

Reduced Graphene Oxide‐Wrapped MoO₃ Composites Prepared by Using Metal–Organic Frameworks as Precursor for All‐Solid‐State Flexible Supercapacitors

Functionalized Hybridization of 2D Nanomaterials

Nano-Engineered Biomimetic Optical Sensors for Glucose Monitoring in Diabetes

Contact Info

Product

Resources

About

Liquid-phase growth of platinum nanoparticles on molybdenum trioxide nanosheets: an enhanced catalyst with intrinsic peroxidase-like catalytic activity

Cited by 87 publications

References 42 publications

Reduced Graphene Oxide‐Wrapped MoO3 Composites Prepared by Using Metal–Organic Frameworks as Precursor for All‐Solid‐State Flexible Supercapacitors

Reduced Graphene Oxide‐Wrapped MoO3 Composites Prepared by Using Metal–Organic Frameworks as Precursor for All‐Solid‐State Flexible Supercapacitors

Functionalized Hybridization of 2D Nanomaterials

Nano-Engineered Biomimetic Optical Sensors for Glucose Monitoring in Diabetes

Contact Info

Product

Resources

About

Reduced Graphene Oxide‐Wrapped MoO₃ Composites Prepared by Using Metal–Organic Frameworks as Precursor for All‐Solid‐State Flexible Supercapacitors

Reduced Graphene Oxide‐Wrapped MoO₃ Composites Prepared by Using Metal–Organic Frameworks as Precursor for All‐Solid‐State Flexible Supercapacitors