An ascorbate fuel cell with carbon black nanoparticles as anode and cathode

Surface‐modified carbon black derived from used car tires as alternative, reusable, and regenerable catalysts for H 2 release studies from sodium borohydride methanolysis

“…The use of CB includes automobile tires, machine parts, cable, hose, construction materials, and even fuel cell applications. [33][34][35][36] Additionally, CB is used in inks, paints, plastic, and carbon papers, giving its black color and even some additional properties.…”

A non‐precious metal ascorbate fuel cell

“…It is a small organic molecule (observed as a white crystalline powder) found abundantly in vivo and as such is an environmentally friendly fuel source; in addition, it can be sourced from biomass waste or through the industrial fermentation of D‐glucose 20 . It is also an attractive fuel candidate for DLFCs because it has been shown to oxidize efficiently on various carbon black materials 21,22 . This feature makes L‐ascorbic acid exceptional as most fuels require expensive Pd‐ and/or Pt‐containing electrodes to be efficiently oxidized.…”

“…In an effort to reduce the cost of fuel cell materials, Muneeb et al, demonstrated that a split pH ascorbate‐peroxide fuel cell could be operated with simple carbon black nanoparticles as the anode and cathode and still achieve a maximum power density of 40 mW cm −2 with 3% H 2 O 2 and 1 M H 2 SO 4 catholyte at 60°C. 22 In addition, this fuel cell generates a maximum power density of 158 mW cm −2 when the catholyte is switched to 30% H 2 O 2 and 1 M H 2 SO 4 . Although this modification was a significant optimization to the catholyte, the increased corrosivity from using a more concentrated H 2 O 2 solution may result in premature degradation of fuel cell components.…”

“…Working principle of split pH ascorbate‐peroxide DLFC utilizing non‐precious metal Cu anode and carbon cathode separated by a Na+ CEM. In this work, the pH of fuel and oxidant streams are also adjusted for comparison (F: fuel, O: oxidant P: product) 22 . [Colour figure can be viewed at wileyonlinelibrary.com]…”

New polymer-graphene nanocomposite electrodes with platinum-palladium nanoparticles for chemical power sources

“…13, No.8 (2019) [739][740][741][742][743][744][745][746][747][748] Available online at www.expresspolymlett.com https://doi.org /10.3144/expresspolymlett.2019.62 catalytic activity and stability of platinum and palladium bimetallic catalysts in the hydrogen and formic acid oxidation reactions in low-temperature current sources were observed. Also, the application perspectives of polymer membranes and porous silicon as matrix carriers have been demonstrated [8][9][10][11][12][13][14][15][16][17][18][19][20]. Recent publications have shown keen interest in the design of composite materials based on polymer membranes (e.g., Nafion membranes) and nanoparticles of various metals.…”