Synthesis of mesoporous hollow polypyrrole spheres and the utilization as supports of high loading of Pt nanoparticles

Yin, Fuxing; Wang, Daorui; Zhang, Zheng; Zhang, Chengwei; Zhang, Yongguang

doi:10.1016/j.matlet.2017.07.074

Cited by 22 publications

(14 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on FT-IR, MALDI/TOF mass, XPS spectra, and theoretical calculations, one could logically draw a conclusion that the chemical oxidative polymerization of BT occurred most likely through S(2)–S(5) coupling between 2- and 5-mercapto groups. This coincides well with the chemical oxidative polymerization coupling mechanism of pyrrole [ 49 ], thiophene [ 50 ], and 2-aminothiazole [ 40 ]. Therefore, we propose a polymerization mechanism of BT, as illustrated in Scheme 2 .…”

Section: Resultssupporting

confidence: 81%

Highly Productive Synthesis, Characterization, and Fluorescence and Heavy Metal Ion Adsorption Properties of Poly(2,5-dimercapto-1,3,4-thiadiazole) Nanosheets

Huang

Min

et al. 2017

Polymers

View full text Add to dashboard Cite

Poly(2,5-dimercapto-1,3,4-thiadiazole) (PBT) nanosheets were synthesized by chemical oxidative synthesis under mild conditions. The media, oxidant species, monomer concentrations, oxidant/monomer molar ratio, and temperature were optimized to achieve higher yields and better performance. The molecular structure, morphology, and properties of the nanosheets were analyzed by Fourier transform infrared (FT-IR), ultraviolet-visible (UV-Vis), and fluorescence spectroscopies, wide-angle X-ray diffraction (WAXD), matrix-assisted laser desorption/ionization/time-of-flight (MALDI-TOF) mass spectrometry, X-ray photoelectron spectroscopy (XPS), scanning electronic microscopy (SEM), transmission electron microscopy (TEM), and simultaneous thermogravimetry and differential scanning calorimetry (TG-DSC). It was found that the polymerization of 2,5-dimercapto-1,3,4-thiadiazole occurs via dehydrogenation coupling between two mercapto groups to form the -S-S-bond. PBTs show the highest polymerization yield of up to 98.47% and form uniform nanosheets with a thickness of 89~367 nm. poly(2,5-dimercapto-1,3,4-thiadiazole) polymers (PBTs) exhibit good chemical resistance, high thermostability, interesting blue-light emitting fluorescence, and wonderful heavy metal ion adsorption properties. Particularly, the PBT nanosheets having a unique synergic combination of three kinds of active -S-, -SH, and =N-groups with a moderate specific area of 15.85 m 2 g −1 exhibit an ultra-rapid initial adsorption rate of 10,653 mg g −1 h −1 and an ultrahigh adsorption capacity of up to 680.01 mg g −1 for mercury ion, becoming ultrafast chelate nanosorbents with a high adsorption capacity. With these impressive properties, PBT nanosheets are very promising materials in the fields of water treatment, sensors, and electrodes.

show abstract

Section: Resultssupporting

confidence: 81%

Highly Productive Synthesis, Characterization, and Fluorescence and Heavy Metal Ion Adsorption Properties of Poly(2,5-dimercapto-1,3,4-thiadiazole) Nanosheets

Huang

Min

et al. 2017

Polymers

View full text Add to dashboard Cite

show abstract

“…Similarly, Wu and co-workers [73] used defective graphene oxide (GO) and SiO 2 as hard templates to realize 2D mesoporous PPy/graphene composite to generate a novel dual-functional lithium-ion redistributor, as shown in Figure 4. Employing SiO 2 nanospheres as hard templates, Zhang and co-workers [74] prepared hollow PPy Various hard templates utilized in the preparation of porous CPs. a) Schematic illustration of the fabrication of 3D well-ordered microporous PPy (3DOMPPy) using SiO 2 nanosphere array as the hard template.…”

Section: Hard Templatesmentioning

confidence: 99%

“…However, to the best of our knowledge, very few studies on the fabrication of porous 0D CPs through hard-and soft-templating methods have been published. [65,74,91] In an early study, Mastai's group [92] utilized chiral block copolymers (CBCs…”

Section: Soft Templatesmentioning

confidence: 99%

See 1 more Smart Citation

Nanoarchitectured Porous Conducting Polymers: From Controlled Synthesis to Advanced Applications

Luo

Kaneti

et al. 2021

Advanced Materials

View full text Add to dashboard Cite

Conductive polymers (CPs) integrate the inherent characteristics of conventional polymers and the unique electrical properties of metals. They have aroused tremendous interest over the last decade owing to their high conductivity, robust and flexible properties, facile fabrication, and cost‐effectiveness. Compared to bulk CPs, porous CPs with well‐defined nano‐ or microstructures possess open porous architectures, high specific surface areas, more exposed reactive sites, and remarkably enhanced activities. These attractive features have led to their applications in sensors, energy storage and conversion devices, biomedical devices, and so on. In this review article, the different strategies for synthesizing porous CPs, including template‐free and template‐based methods, are summarized, and the importance of tuning the morphology and pore structure of porous CPs to optimize their functional performance is highlighted. Moreover, their representative applications (energy storage devices, sensors, biomedical devices, etc.) are also discussed. The review is concluded by discussing the current challenges and future development trend in this field.

show abstract

“…The morphology and architecture of PPy-based nanomaterials often affect their functionalities in particular fields. Thus, great efforts have been devoted into the expansion of PPy nanomaterials with controllable morphologies like nanowires [ 4 ], hollow nanospheres [ 5 , 6 ], and porous structures [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Polypyrrole Nanowires with Ordered Large Mesopores: Synthesis, Characterization and Applications in Supercapacitor and Lithium/Sulfur Batteries

et al. 2019

Self Cite

View full text Add to dashboard Cite

In this work, we report the preparation of polypyrrole nanowires with ordered large mesopores (OMPW) by a simple chemical polymerization method from dual templates synthesized by self-assembling silica nanospheres in porous anodic aluminum oxide (AAO) membrane channels. The obtained OMPW showed a large surface area (231.5 m2 g−1), high aspect ratio, and interconnected large mesopores (~23 nm). The OMPW was tested as a supercapacitor electrode and showed a specific capacitance of 453 F g−1 at 0.25 A g−1. A sulfur/OMPW (S/OMPW) cathode was fabricated via a simple solution method and a heat-treatment process for lithium/sulfur batteries (LSBs). The S/OMPW composite delivered a large discharge capacity reaching 1601 mAh g−1 at the initial cycle, retaining 1014 mAh g−1 at the 100th cycle at 0.1 C. The great electrochemical performances of the OMPW capacitor electrode and S/OMPW composite were attributed to the large specific surface areas and interconnected mesopores that could supply more active sites for the electrochemical reaction and facilitate mass transfer.

show abstract

Synthesis of mesoporous hollow polypyrrole spheres and the utilization as supports of high loading of Pt nanoparticles

Cited by 22 publications

References 16 publications

Highly Productive Synthesis, Characterization, and Fluorescence and Heavy Metal Ion Adsorption Properties of Poly(2,5-dimercapto-1,3,4-thiadiazole) Nanosheets

Highly Productive Synthesis, Characterization, and Fluorescence and Heavy Metal Ion Adsorption Properties of Poly(2,5-dimercapto-1,3,4-thiadiazole) Nanosheets

Nanoarchitectured Porous Conducting Polymers: From Controlled Synthesis to Advanced Applications

Polypyrrole Nanowires with Ordered Large Mesopores: Synthesis, Characterization and Applications in Supercapacitor and Lithium/Sulfur Batteries

Contact Info

Product

Resources

About