Carbonaceous materials as catalysts for decomposition of methane

Methane decomposition using Ni–Cu alloy nano-particle catalysts and catalyst deactivation studies

“…Among many hydrogen production reactions, direct decomposition of methane in the presence of a catalyst has attracted widespread attention [4][5][6]. The major driving factor for the research activities on catalytic decomposition of methane (CDM) is the highly desirable products -CO x -free hydrogen and carbon nanotubes (CNTs) or carbon nanofibres (CNFs) instead of gaseous CO x , eliminating the need for CO x separation and sequestration processes altogether [7][8][9][10][11].…”

Kinetic investigation of carbon-catalyzed methane decomposition in a thermogravimetric solar reactor

“…Mesoporous carbons with high surface area provided more stable and sustainable hydrogen production [40e44]. Carbon blacks, showing an external surface area, open and easily accessible to methane molecules were studied as a possible way of delaying the rapid deactivation observed for activated carbons [38,39].…”

Catalytic Performance of Coal Char for the Methane Reforming Process

“…It can be seen that the catalytic activity of char for CO 2 and steam reforming of methane follows the order of lignite > bituminous coal > anthracite, i.e., the younger the parent coal, the higher the catalytic activity of the char will be. The catalytic activities of carbon materials have been found to be proportional to the concentration of oxygen surface groups, mainly the groups that desorbed as CO in temperature-programmed desorption (TPD) experiments [18,22]. As is known, the low-rank coal lignite containing more amorphous carbon has a higher oxygen content, which possibly generates more oxygen surface groups on the char surface, and this will provide unsaturated atoms of carbon that can react with the CH 4 .…”