Instrument Cluster (IND.), Driver/Passenger Door Lamp, MAP Lamp, Room Lamp, Cargo Lamp, Driver/Passenger Vanity Switch

Co is another transition metal commonly used to prepare bimetallic NiCo catalysts for CO 2 methanation. Co is right adjacent to Ni in the periodic table, it can dissolve into the lattice of metallic Ni similarly to Fe and its easy transition between the oxidation states of Co(III), Co(II) and Co 0 can induce modifications to the electronic properties of Ni-based catalysts [ 24, 78]. Among the first works, Guo et al. [ 79] prepared several bimetallic NiCo catalysts supported on SiO 2 with different Co/Ni ratios. They found that higher Co loadings improved the activity of the catalysts and that a Co/Ni ratio of 0.4 led to the best performing catalyst. The formation of a homogeneous NiCo alloy supported on SiO 2 has also been shown to promote CO dissociation and hydrogen spillover during CO methanation, leading to higher activity [ 78]. Lane Departure Warning Unit, Emergency Pad Switch, IBU, Console Switch, ATM Shift Lever Indicator, AWD ECU, Sport Mode Switch ZHOU M H, TAN Q Q, WANG Q, et al. Degradation of organics in reverse osmosis concentrate by electro-Fenton process[J]. Journal of Hazadrous Materials, 2012, 215: 287-293.KEY SOLENOID, SPORTS MODE SWITCH, SEMIACTIVE SOLENOID (GASOLINE) INSTRUMENT CLUSTER, LUGGAGE LAMP, MAP LAMP, REAR PERSONAL LAMP, Pastor-Pérez et al. [ 69] prepared Fe and Co modified Ni catalysts supported on CeO 2-ZrO 2 and observed a negative effect of Fe addition, since the 3% Fe, 15% Ni/CeO 2-ZrO 2 catalyst exhibited lower values for CO 2 conversion and CH 4 selectivity compared to the monometallic Ni catalyst. Likewise, le Saché et al. [ 70] observed that Fe addition on a Ni/CeO 2-ZrO 2 catalyst led to a drop in CO 2 conversion and CH 4 selectivity. Furthermore, Frontera et al. [ 71] also reported a drop in CO 2 methanation activity upon Fe alloying over Ni catalysts supported on Gd-doped CeO 2 (GDC). In contrast to NiFe catalysts supported on inert supports such as Al 2O 3 and SiO 2 [ 26, 43], Fe addition appeared to suppress the population of surface oxygen vacancies on the already defect-rich GDC support. Rhenium (Re) is not a very common element in heterogeneous catalysis, and it is only sometimes considered to be a noble metal. An example of its application in heterogeneous catalysis is the deoxydehydration (DODH) of biomass-derived polyols to produce adipic acid over ReO x supported on ZrO 2 [ 126]. There has, however, recently been a handful of reports where Re is studied as a promoter in Ni-based catalysts for methanation.

S. Liu et al., Synthesis and characterization of an iron nitride constructed by a novel template of metal organic framework. J. Spectrosc. 2015, 8 (2015) Ni was homogeneously dispersed over the structured support as small nanoparticles (2–4 nm) via equilibrium adsorption, while Ru was atomically dispersed via wet impregnation. The structured catalyst on Al 2O 3-washcoated monolith provided stable performance with low pressure drop under high space velocities.

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RhNi/Al 2O 3 catalysts prepared by galvanic replacement exhibited superior CO 2 methanation performance at low temperatures. Galvanic replacement led to Ni nanoparticles encapsulated by an atomically thin RhO x shell, while chemical reduction led to a higher degree of Ni and Rh intermixing. KO C H, FAN C, CHIANG P N, et al. P-nitrophenol, phenol and aniline sorption by organo-clays[J]. Journal of Hazadrous Materials, 2007, 149(2): 275-282. doi: 10.1016/j.jhazmat.2007.03.075