Porous layered cobalt nanocrystal/nitrogen-doped carbon composites as efficient and CO-resistant electrocatalysts for methanol oxidation reaction

Crystalline–Amorphous Ni3S2–NiMoO4 Heterostructure for Durable Urea Electrolysis-Assisted Hydrogen Production at High Current Density

“…As expected, there is no obvious change in CV curves tested in the CO solution at different times (Figure S10a). Meanwhile, the CV curve obtained in a CO-saturated solution remains almost the same as that in the N 2 -saturated solution (Figure S10b), which means that Ni 3 S 2 –NiMoO 4 /NF has strong anti-poisoning ability for CO. , …”

“…As expected, there is no obvious change in CV curves tested in the CO solution at different times (Figure S10a). Meanwhile, the CV curve obtained in a CO-saturated solution remains almost the same as that in the N 2 -saturated solution (Figure S10b), which means that Ni 3 S 2 −NiMoO 4 /NF has strong anti-poisoning ability for CO. 60,61 To further verify that one of the reaction products of UOR is CO 2 and the products of UOR will not pollute the environment, the precipitation reaction of Ba(OH) 2 •8H 2 O was tested in the solution after the UOR stability test. As shown in Figure S11, precipitation occurs in the electrolyte after adding Ba(OH) 2 •8H 2 O.…”

Highly Conductive and CO‐Resistant Cobalt‐Based Monolithic Electrodes for the Catalytic Oxidation of Methanol

“…Therefore, it is very significant to investigate the anti-CO poisoning ability of catalysts for improving the performance of MOR. [35][36][37][38] We put electrodes in a CO-saturated electrolyte for 15 minute and then compare the LSV curve before and after CO poisoning. The j value of CPÀ FT-500 catalyst reduced from 352.1 mA/cm 2 to 327.4 mA/cm 2 at 0.6 V, and the j value retention rate was 93 % (Figure 7a).…”

Bimetallic Pt–M (M = Fe, Co, Ni) nanobunches composed of ultrathin nanowires with strong synergy and rich surface defects for enhanced methanol oxidation electrocatalysis

“…10,11 Platinum (Pt)-based noble metal materials with a strong ability to break C-H bonds have long been considered as the most commonly implemented electrocatalysts, but they suffer from the restriction factors of low mass activity, sluggish kinetics, and poisoning towards intermediate CO ads as well as high-cost and scarcity, which result in low current density and conversion efficiency and even hinder the commercial progress of DMFCs. 12 Therefore, it is urgent to explore high efficiency and low-cost catalysts for the MOR. To maximize the utilization efficiency of Pt atoms, researchers have developed a series of strategies, such as controlling the morphology and size, [13][14][15] engineering surface defects, 16,17 regulating the facets, 18,19 fabricating supported nanocomposites, 20,21 and forming alloys with other noble or transition metals.…”