Facile Synthesis of Microporous Carbons from Biomass Waste as High Performance Supports for Dehydrogenation of Formic Acid

Abstract

Formic acid (FA) is found to be a potential candidate for the storage of hydrogen. For dehydrogenation of FA, the supports of our catalysts were acquired by conducting ZnCl2 treatment and carbonation for biomass waste. The texture and surface properties significantly affected the size and dispersion of Pd and its interaction with the support so as to cause the superior catalytic performance of catalysts. Microporous carbon obtained by carbonization of ZnCl2 activated peanut shells (CPS-ZnCl2) possessing surface areas of 629 m2·g−1 and a micropore rate of 73.5%. For ZnCl2 activated melon seed (CMS-ZnCl2), the surface area and micropore rate increased to 1081 m2·g−1 and 80.0%, respectively. In addition, the introduction of ZnCl2 also caused the increase in surface O content and reduced the acidity of the catalyst. The results represented that CMS-ZnCl2 with uniform honeycomb morphology displayed the best properties, and the as-prepared Pd/CMS-ZnCl2 catalyst afforded 100% hydrogen selectivity as well as excellent catalytic activity with an initial high turnover number (TON) value of 28.3 at 30 °C and 100.1 at 60 °C.

Sawdust-Derived Activated Carbon with Hierarchical Pores for High-Performance Symmetric Supercapacitors

“…Since the surface area with a porous structure is the key to high-performance electrode materials in energy storage, the Ar adsorption/desorption and pore structure characteristics of SD-AC were further evaluated ( Figure 3 and Table 2 ). As shown in Figure 3 a, the isotherm profile is assigned to be type I, with a rapid adsorption of Ar at low relative pressures ( P / P 0 < 0.03), indicating the presence of a large number of micropores [ 21 ]. From P / P 0 = 0.03 onwards, the amount of adsorption increases slowly until P / P 0 reaches 0.3, suggesting the formation of small-sized mesopores [ 4 ].…”

A Palladium Catalyst Supported on Boron-Doped Porous Carbon for Efficient Dehydrogenation of Formic Acid

“…To address this issue, precise control over hydrogen storage and release has become imperative for harnessing the full potential of hydrogen energy, particularly in applications such as hydrogen fuel cells. Among various media for storing hydrogen such as methanol, hydrazine hydrate, and ammonia borane, formic acid stands out as an appealing choice due to its high energy density, non-toxic nature, and stability at room temperature [ 5 , 6 ].…”

Enhanced upgrading of corncob to furfuryl alcohol with a novel silica-supported SO42−-TiO2 chemocatalyst and immobilized whole-cell biocatalyst

“…Enhancing the efficient exploitation and utilization of biomass resources derived from agricultural wastes will greatly facilitate carbon neutralization and limit the carbon peak. 37 In this work, silica-supported SO 4 2− -TiO 2 solid acid catalysts were prepared and used under microwave heating to synthesize FFA from corncob (CNB). The morphology, structure, and properties of the solid acid SO 4 2− -TiO 2 /SiO 2 were characterized.…”