High performance of the flow-type one-compartment hydrogen peroxide fuel cell using buckypaper and narrow fuel pathway under physiological conditions

Jeon, Sieun; An, Heeyeon; Chung, Yongjin

doi:10.1039/d1se01784e

Cited by 12 publications

(11 citation statements)

References 62 publications

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“…The MPDs and OCPs of HPFCs previously reported in the literature are summarized in Table S2. 21 The direct comparison was difficult because cathode catalysts and operation conditions are not the same as ours; however, Co II (Ch) is one of the most promising anode catalysts.…”

Section: Synthesis Of Co II (Chmentioning

confidence: 99%

High Power Density of a Hydrogen Peroxide Fuel Cell Using Cobalt Chlorin Complex Supported on Carbon Nanotubes as a Noncorrosive Anode

Hashimoto,

Nakazono,

Yamada

2024

Inorg. Chem.

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Hydrogen peroxide fuel cells (HPFCs) have attracted much attention due to their simple one-compartment structures and high availability under harsh conditions such as an anaerobic environment; however, catalysis improvement is strongly demanded for both anodes and cathodes in terms of activity and durability. Herein, we report the high catalytic activity of Co II chlorin [Co II (Ch)] for hydrogen peroxide (H 2 O 2 ) oxidation with a low overpotential (0.21 V) compared to that of the Co II phthalocyanine and Co II porphyrin complexes, which have previously been reported as active anode catalysts. Linear sweep voltammograms and differential pulse voltammograms of the Co II complexes (Co II L) and the corresponding ligands clearly showed that the Co III L species are the active species for H 2 O 2 oxidation. Then, one-compartment HPFCs were constructed with Co II (Ch) supported on multiwalled carbon nanotubes (CNTs) as the anode together with Fe II 3 [Co III (CN) 6 ] 2 supported on CNTs as the cathode. The maximum power density of the HPFCs reached 151 μW cm −2 with an open circuit potential of 0.33 V when the coverage of CNT surfaces with Co II (Ch) exceeded ∼60% at the anode.

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Section: Synthesis Of Co II (Chmentioning

confidence: 99%

High Power Density of a Hydrogen Peroxide Fuel Cell Using Cobalt Chlorin Complex Supported on Carbon Nanotubes as a Noncorrosive Anode

Hashimoto,

Nakazono,

Yamada

2024

Inorg. Chem.

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“…[36,37] Therefore, rapid and accurate blood glucose detection is critical for the monitoring of physical health and diabetes treatments. Some existing glucose detection systems, namely, fluorescence method, [38,39] surface-enhanced Raman scattering method, [40][41][42] chemiluminescence method, [43,44] and electrochemistry, [45][46][47] have been thoroughly exploited, and they show enormous potentials in practical applications. However, due to the complex operation and expensive instrumentation of the electrochemical methods, they have become limited in applications.…”

Section: Introductionmentioning

confidence: 99%

A Co(II)–organic framework and peroxidase mimetic Hemin@metal–organic framework and its application in the colorimetric analysis of glucose

Wang

et al. 2023

Applied Organom Chemis

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A Co(II)‐organic framework (Co‐MOF), [Co3(3,5‐bimpy)2(5‐cpia)2(H2O)2], was constructed via the hydrothermal reaction of 3,5‐bis(1‐imidazoly)pyridine (3,5‐bimpy) and 5‐(2′‐carboxylphenoxy)isophthalic acid (5‐H3cpia). The Co‐MOF possessed a three‐dimensional (3D) porous architecture with the porosity of 22.4% per unit volume. The Co‐MOF@Hemin composite was further constructed via the encapsulation of Hemin into the Co‐MOF material. The constructed Co‐MOF@Hemin exhibited satisfactory peroxidase‐like activity through catalytic oxidation of the colorless peroxidase substrate 3,3,5,5‐tetramethylbenzidine (TMB) to a blue‐colored oxTMB in the presence of H2O2. Hence, the detection of H2O2 was achieved with a wide linear range from 0.005 to 0.5 mM (R2 = 0.992) and a low detection limit of 1.26 μM. More importantly, the peroxidase‐like Co‐MOF@Hemin was suitable for the sensitive and selective detection of glucose under the presence of glucose oxidase (GOx), which reduced O2 to H2O2. This analytical procedure for the detection of glucose had a linear range from 0.3 to 3 mM (R2 = 0.997), with a detection limit of 49 μM. The experimental results display the broad application prospects of the enzyme‐based MOFs in green and selective targets analyses.

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“…Most of them use glucose oxidase (GOx) enzyme for glucose oxidation reaction (GOR), and Pt electrode serves as the catalyst to generate anodic current from hydrogen peroxide, a product of GOR [19]. Instead of using Pt, In recent years, metal phthalocyanines (MPCs) such as cobalt phthalocyanine (CoPc) have also been considered for use in glucose level sensor electrodes [20][21][22][23][24]. MPCs have shown high sensitivity, speci c response to the substrates, chemical stability, and reusability, making them suitable replacements for precious metal-based electrodes [25].…”

Section: Introductionmentioning

confidence: 99%

Two-dimensional polymeric cobalt phthalocyanine synthesized by microwave irradiation and its use for continuous glucose monitoring

Jeon

You

et al. 2023

Preprint

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Two-dimensional polymeric cobalt phthalocyanine (poly-CoPc) was synthesized using a microwave-assisted process, and its feasibility for use in continuous glucose monitoring (CGM) was investigated. The CNT/poly-CoPc composite showed 18% higher Co content than using commercial CoPc (c-CoPc/CNT) and synthesized CoPc (s-CoPc/CNT) composites, due to its intrinsic polymeric structure. In the cyclic voltammetry test, the bioelectrode incorporating glucose oxidase (GOx) based upper enzyme layer ([poly-CoPc/CNT]/PEI/[GOx-TPA]) demonstrated 1.51 times higher current densities than monomeric CoPc used bioelectrode ([CoPc/CNT]/PEI/[GOx-TPA]). This improvement is attributed to the higher biocompatibility with the enzyme layer of poly-CoPc, which prevents the blocking of hydrophobic sites near the co-factor of GOx. As a glucose sensor, [poly-CoPc/CNT]/PEI/[GOx-TPA] exhibits a sensitivity of 55.4 μA mM−1 cm−2 and a response time of 2.4s in the chronoamperometric response test. Furthermore, the proposed bioelectrode showed 95.6% performance maintenance during 24 h and 81.4% stability over 20 days. These findings demonstrate the suitability of [poly-CoPc/CNT]/PEI/[GOx-TPA] for implantable and low-invasive patch-type glucose sensors offering high sensitivity, durability, and a linear response within the physiological glucose concentration range (0.1-20.0 mM) of both average individuals and diabetic patients.

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High performance of the flow-type one-compartment hydrogen peroxide fuel cell using buckypaper and narrow fuel pathway under physiological conditions

Abstract: Flow-type membraneless hydrogen peroxide fuel cell (HPFC) having high power density is fabricated using buckypaper (BP) based electrodes and eddy-inducing cell structure to use low concentrated H2O2 fuel. Benefiting from...

Cited by 12 publications

References 62 publications

High Power Density of a Hydrogen Peroxide Fuel Cell Using Cobalt Chlorin Complex Supported on Carbon Nanotubes as a Noncorrosive Anode

High Power Density of a Hydrogen Peroxide Fuel Cell Using Cobalt Chlorin Complex Supported on Carbon Nanotubes as a Noncorrosive Anode

A Co(II)–organic framework and peroxidase mimetic Hemin@metal–organic framework and its application in the colorimetric analysis of glucose

Two-dimensional polymeric cobalt phthalocyanine synthesized by microwave irradiation and its use for continuous glucose monitoring

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