Hae-Kyoung Kim

TL;DR: In this paper, a vapor-fed passive direct methanol fuel cell (DMFC) was proposed to achieve a high energy density by using pure methanols for mobile applications.

TL;DR: In this article, various composite membranes based on Nafion® ionomer with functionalized montmorillonite (MMT) were employed to reduce methanol cross-over without sacrificing proton conductivity by introducing sulfonic acid group at the MMT surface followed by blending with nafion ionomer.

TL;DR: In this article, a novel structure of membrane electrode assembly (MEA) for a passive direct methanol fuel cell (DMFC) was proposed to achieve high performances, and the proposed electrodes were proven to be two times more effective in water back diffusion than conventional electrodes, and their MEAs showed higher performances than conventional MEA.

TL;DR: In this article, a method of preparing a supported catalyst includes dissolving a cation exchange polymer in alcohol to prepare a solution containing Cation exchange polymers, mixing the polymer with a catalytic metal precursor or a solution with a catalyst support, and filtering and drying the precipitates.

TL;DR: In this article, an organic/inorganic hybrid membrane with silica supported heteropoly acid was applied to reduce methanol cross-over with keeping ionic conductivity high for DMFCs.