Dry reforming of methane over supported noble metals: a novel approach to preparing catalysts

Effective utilization of waste: development of CH4 dry reforming catalysts from spent nickel metal hydride battery for resource recovery

“…As the estimation indicates that the temperature range from 700 to 835 °C is appropriate for the CH 4 dry reforming, the reaction temperature was decided on 780°C in the present study. This temperature is consistent with those reported by a lot of researches [4,5,7,8,14]. Figure 4 shows the CH 4 conversion over NiO prepared from the anode material as a function of reaction time.…”

“…2, reveal that the anode material of spent Ni-MH battery contains Ni as a main element, Ce as a second element and much Co, La, Mn and Nd next to them. Main crystalline phases were identified as LaNi 5 by XRD. In the beginning of the recovery process, pre-experiments were carried out for the anode material of spent Ni-MH battery to search optimum conditions.…”

“…It has been known that noble metal (Pt, Rh, Ru, Pd and Ir) supported catalysts had good catalytic performance for the CH 4 dry reforming [1][2][3][4][5][6][7][8][9]. However, the development of cheap metal catalyst has been desired, because the noble metal catalyst is not suitable for utilizing on a large scale.…”

Perovskite-type oxygen-permeable membrane BaCo0.7Fe0.2Nb0.1O3−δ for partial oxidation of methane in coke oven gas to hydrogen

“…[17]. Hydrotalcite, a layered Mg-Al compound, was firstly prepared by dropping a solution of Mg(NO 3 ) 2 ·6H 2 O and Al(NO 3 ) 3 ·9H 2 O (atom ratio: Mg/Al = 3/1) into a solution of 0.5 mol/L Na 2 CO 3 ·10H 2 O and aging the precipitate for 12 h. The resultant compound was then dropped into a solution of complex anions of a noble metal Ru and stirred until the top layer of the solution became clear, indicating complete intercalation of the noble metal into the hydrotalcite compound.…”

Biogas reforming over BaTi1−xSnxO3-supported Ni-based catalysts recovered from spent Ni-metal-hydride batteries

“…CH 4 is important as a major raw material of gas chemistry as well as a clean fuel. In gas chemistry, CH 4 is converted into a synthesis gas (syngas) consisting of H 2 and CO for the syntheses of industrial liquid fuels such as methanol and dimethyl ether via either the dry reforming reaction (1) or the steam reforming reaction (2), using catalysts. Moreover, syngas is useful as a fuel in solid oxide fuel cells (SOFCs).…”