Hierarchically structured carbon electrodes derived from intrinsically microporous Tröger’s base polymers for high-performance supercapacitors

Jeon, Jun Woo; Shin, Joobee; Lee, Jin Young; Baik, Ji-Hoon; Malpass‐Evans, Richard; McKeown, Neil B.; Kim, Sang Woo; Lee, Jong-Chan; Kim, Sung‐Kon; Kim, Byoung Gak

doi:10.1016/j.apsusc.2020.147146

Cited by 12 publications

(7 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This method of carbonization can be used also for PIMs with absorbed metal complexes, for example, for absorbed PtCl 6 2– to embed platinum nanoparticles into the microporous carbon product . In recent work by Jeon et al with PIM-EA-TB, it was shown that nonsolvent precipitation methods can be employed to add hierarchical porosity for electrochemical supercapacitor applications …”

Section: Pims At Solid|solid|liquid Interfacesmentioning

confidence: 99%

See 1 more Smart Citation

Polymers of Intrinsic Microporosity in the Design of Electrochemical Multicomponent and Multiphase Interfaces

2020

Self Cite

View full text Add to dashboard Cite

Polymers of intrinsic microporosity (or PIMs) provide porous materials due to their highly contorted and rigid macromolecular structures, which prevent space-efficient packing. PIMs are readily dissolved in solvents and can be cast into robust microporous coatings and membranes. With a typical micropore size range of around 1 nm and a typical surface area of 700−1000 m2 g−1, PIMs offer channels for ion/molecular transport and pores for gaseous species, solids, and liquids to coexist. Electrode surfaces are readily modified with coatings or composite films to provide interfaces for solid|solid|liquid or solid|liquid|liquid or solid|liquid|gas multiphase electrode processes.

show abstract

Section: Pims At Solid|solid|liquid Interfacesmentioning

confidence: 99%

“…33 In recent work by Jeon et al with PIM-EA-TB, it was shown that nonsolvent precipitation methods can be employed to add hierarchical porosity for electrochemical supercapacitor applications. 34…”

Section: ■ Pims At Solid|solid|liquid Interfacesmentioning

confidence: 99%

Polymers of Intrinsic Microporosity in the Design of Electrochemical Multicomponent and Multiphase Interfaces

2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…To date, several TB-derived POPs have been constructed using amino-functionalized pyrene, triphenyltriazine, triphenylbenzene, and tetraphenylethene and then were used as efficient materials for sensing catalysis, gas separation, and storage [ 55 , 56 , 57 , 58 ]. To the best of our knowledge, the use of TB-derived microporous organic polymer for the preparation of carbon electrode material for supercapacitor has been once reported by the carbonization of TB-derived polymer at 1100 °C [ 59 ]. The preparation of TB-derived polymer containing electrochemical redox-active moiety for energy storage application has not been reported.…”

Section: Introductionmentioning

confidence: 99%

A Tröger’s Base-Derived Covalent Organic Polymer Containing Carbazole Units as a High-Performance Supercapacitor

et al. 2021

View full text Add to dashboard Cite

Porous organic polymers have been received considerable attention due to their heteroatom-containing structures and high surface areas, which can offer high electrochemical performance in energy applications. The majority of reported Tröger’s base-functionalized porous organic polymers have been applied as effective candidates for sensing and gas separation/adsorption, while their use as electrode materials in supercapacitors is rare. Here, a novel covalent microporous organic polymer containing carbazole and Tröger’s base CzT-CMOP has been successfully synthesized through the one-pot polycondensation of 9-(4-aminophenyl)-carbazole-3,6-diamine (Cz-3NH2) with dimethoxymethane. The polycondensation reaction’s regioselectivity was studied using spectroscopic analyses and electronic structure calculations that confirmed the polycondensation occurred through the second and seventh positions of the carbazole unit rather than the fourth and fifth positions confirmed by first-principles calculations. Our CzT-CMOP exhibited high thermal stability of approximately 463.5 °C and a relatively high Brunauer–Emmett–Teller surface area of 615 m2 g−1 with a nonlocal density functional theory’s pore size and volume of 0.48 cm3 g−1 and 1.66 nm, respectively. In addition, the synthesized CzT-CMOP displayed redox activity due to the existence of a redox-active carbazole in the polymer skeleton. CzT-CMOP revealed high electrochemical performance when used as active-electrode material in a three-electrode supercapacitor with an aqueous electrolyte of 6 M KOH, and it showed specific capacitance of 240 F g−1 at a current density of 0.5 A g−1 with excellent stability after 2000 cycles of 97% capacitance retention. Accordingly, such porous organic polymer appears to have a variety of uses in energy-related applications.

show abstract

“…PIM-EA-TB (see molecular structure in Figure 1) derives from an ethano- anthracene (EA) structural motif formed in a Tröger base (TB) reaction [12] and offers microchannels with typically 1-2 nm diameter and a surface area of typically 1000 m 2 g À 1 (based on nitrogen adsorption isotherm data [13] ). Applications for PIM-EA-TB and related materials have been proposed in redox flow cell membranes, [14] as a precursor for microporous heterocarbons, [15,16] and as protective layer on fuel cell catalysts. [17] Previous ionic diode experiments with the polymer of intrinsic microporosity PIM-EA-TB [9] have shown that in neutral solution no semi-permeability is observed.…”

Section: Introductionmentioning

confidence: 99%

Ionic Diode and Molecular Pump Phenomena Associated with Caffeic Acid Accumulated into an Intrinsically Microporous Polyamine (PIM‐EA‐TB)

Wang

Malpass‐Evans

et al. 2021

ChemElectroChem

Self Cite

View full text Add to dashboard Cite

The polymer of intrinsic microporosity PIM-EA-TB provides a molecularly rigid micropore structure containing tertiary amine sites and is shown here to interact with hydrogen bonding guest molecules such as caffeic acid. Voltammetric data with a PIM-EA-TB film on glassy carbon electrodes show that in both acidic solution (pH 2; PIM-EA-TB is protonated) and in neutral solution (pH 6; PIM-EA-TB is not protonated) caffeic acid is slowly accumulated into the microporous host. Binding constants are estimated and suggested to be linked to hydrogen bonding causing accumulation of caffeic acid. When employing PIM-EA-TB as an asymmetric membrane coated onto a 5 μm thick Teflon support film with 10 μm diameter microholes (using either a single microhole or a 10 × 10 array of microholes), binding of caffeic acid is shown to cause a modulation of the ionic current without affecting the pH-dependent ionic diode behaviour. Two complementary types of effects of caffeic acid guests are discussed based on blocking anion diffusion pathways and based on removal of positive charges. The caffeic acid transport mechanism/efficiency is investigated in view of selective molecular pumping.

show abstract

Hierarchically structured carbon electrodes derived from intrinsically microporous Tröger’s base polymers for high-performance supercapacitors

Cited by 12 publications

References 51 publications

Polymers of Intrinsic Microporosity in the Design of Electrochemical Multicomponent and Multiphase Interfaces

Polymers of Intrinsic Microporosity in the Design of Electrochemical Multicomponent and Multiphase Interfaces

A Tröger’s Base-Derived Covalent Organic Polymer Containing Carbazole Units as a High-Performance Supercapacitor

Ionic Diode and Molecular Pump Phenomena Associated with Caffeic Acid Accumulated into an Intrinsically Microporous Polyamine (PIM‐EA‐TB)

Contact Info

Product

Resources

About