The effect of a vitamin B₁₂ based catalyst on hydrogen peroxide oxidation reactions and the performance evaluation of a membraneless hydrogen peroxide fuel cell under physiological pH conditions

Abstract

A new anodic catalyst (CNT/VitB12) is introduced for promoting the hydrogen peroxide oxidation reaction (HPOR) and the performance of a membraneless hydrogen peroxide fuel cell (HPFC).

Amine axial ligand-coordinated cobalt phthalocyanine-based catalyst for flow-type membraneless hydrogen peroxide fuel cell or enzymatic biofuel cell

“…However, the commercial use of fuel cells has not yet spread widely, owing to the public safety concerns attributed to the use of hydrogen fuel and the device durability [6]. Especially, their application in portable devices--such as mobile phones, laptops, and compact mobilities, which commonly use rechargeable batteries even with the crucial drawback of long charging time--is limited by the dangerousness and inconvenience related to charging and storage of hydrogen gas [7,8]. According to the recent studies regarding the public acceptance of hydrogen energy, there are findings that the public has yet negative perceptions to the hydrogen storage and use for portable and residential use due to the concerns of explosion and leak, even if the many people agree with its usefulness [9,10].…”

“…For addressing this issue, an anode using organometallic materials has been recently introduced [22,29]. The main advantages of this anode include higher power density and operational durability as compared to the Ni anode, owing to the lower potential of HPOR even under physiological or neutral conditions [7], but its performance is still insufficient for commercial use. Meanwhile, the bioanodes using organometallic catalysts have been developed in the EBC research field.…”

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

“…According to previous studies, the hydrogen peroxide fuel cell (HPFC) can be fabricated as a one-compartment shape that does not need a membrane to separate both electrodes and used aqueous H 2 O 2 fuel, indicating that the simple membraneless structure can allow the small cell volume to achieve a high energy density and the long lifespan of the fabricated cell. 2,17–20 However, H 2 O 2 from the PECWS studies until now is known for having relatively low concentration of 1–20 mM even in over 3 h operation, 21–23 implying that the tiny and high-performance HPFC for low concentration of H 2 O 2 fuel is needed for the actual use in municipal application. In addition, most HPFC introduced to operate in acidic and alkaline conditions for higher open-circuit voltage (OCV) and the absence of proper catalysts under neutral conditions, 24–27 implying that HPFC operating under neutral conditions should be used as the alternative of hydrogen fuel cell in a particular situation, such as working close to people and highly explosive or corrosive circumstances.…”

The Solvent Effect on H2O2 Generation at Room Temperature Ionic Liquid|Water Interface

“…Bleaching with hydrogen peroxide is an important process in paper and pulp industry [6] . Recently, researchers focused on the application of H 2 O 2 as fuel and/or oxidizer for fuel cells [7–12] …”