Hollow and porous NiCo2O4 nanospheres for enhanced methanol oxidation reaction and oxygen reduction reaction by oxygen vacancies engineering

Highly Stable NiCoZn Ternary Mixed-Metal-Oxide Nanorods as a Low-Cost, Non-Noble Electrocatalyst for Methanol Electro-Oxidation in Alkaline Medium

“…3 Among them, direct methanol fuel cells (DMFCs) have gathered substantial research interest due to their high volumetric energy density, rich and renewable resources, expedient storage, and transportation. 4 The key maneuvers of DMFCs are the cathodic oxygen reduction reaction (ORR) and the anodic methanol oxidation reaction (MOR). 5 Substantial efforts have been made to develop an electrocatalyst that can improve the MOR and ORR processes to increase the energy conversion efficiency of DMFCs.…”

“…In the past few decades, fuel cells were reported with a variety of fuels, including natural gas such as methanol, hydrogen, ethanol, glycerol, gasoline, etc . Among them, direct methanol fuel cells (DMFCs) have gathered substantial research interest due to their high volumetric energy density, rich and renewable resources, expedient storage, and transportation …”

Impact of oxygen‐defects induced electrochemical properties of three‐dimensional flower‐like CoMoO 4 nanoarchitecture for supercapacitor applications

“…The high‐resolution Co 2p spectra of the rCMO and CMO nanomaterial display two prominent peaks positioned at 780.7 and 797.4 eV associated with Co 2p 3/2 and Co 2p 1/2 coupled with two satellite peaks situated at 788.2 and 803.5 eV, signifying the existence of Co 2+ element (Figure 4A). 43,52 The Co 2p spectra clearly unveil slight negative shifts of approximately 0.17 eV for rCMO compared with those for CMO material, which could be a distortion of the Co‐O bond 53,54 . The deconvoluted Mo 3d spectra of rCMO and CMO nanomaterials are displayed in Figure 4B.…”

“…43,52 The Co 2p spectra clearly unveil slight negative shifts of approximately 0.17 eV for rCMO compared with those for CMO material, which could be a distortion of the Co-O bond. 53,54 The deconvoluted Mo 3d spectra of rCMO and CMO nanomaterials are displayed in Figure 4B. In the CMO spectrum, the two spin-orbit splittings found at 232.14 and 235.27 eV attributed to Mo3d 5/2 and Mo3d 3/2 .…”

Fabrication of Mn3O4-CeO2-rGO as Nanocatalyst for Electro-Oxidation of Methanol

“…It should be noted that many cost-effective catalysts have been introduced in the field of methanol oxidation, although small amounts of precious metals have been often used in the catalyst structure. Moreover, composing and hybridizing the Pt, Pd, Ru, etc., with materials such as carbon, metal oxides, metal sulfides, and conductive polymers have been reported in many works [ 16 , 17 , 18 , 19 , 20 ].…”