Amorphous FeOOH coating stabilizes WO2-NaxWO3 for accelerating oxygen evolution reaction

Coupling LaNiO3 Nanorods with FeOOH Nanosheets for Oxygen Evolution Reaction

“…33-0711), whereas FeOOH shows no diffraction peak. Generally, FeOOH prepared by hydrolysis at low temperatures has poor crystallinity without obvious diffraction peaks in the XRD spectrum [30][31][32]. Although the diffraction peaks of FeOOH appear in some cases, the peak intensity is also very weak due to the The powder X-ray diffraction (XRD) patterns of LNO, FeOOH and xFe-LNO are shown in Figure 1a.…”

Research Advances in Amorphous‐Crystalline Heterostructures Toward Efficient Electrochemical Applications

“…Considering the diversity of building blocks, the multistep strategy is proposed as the most commonly used technique to construct different kinds of amorphous-crystalline heterostructures. [102][103] The multistep strategy is defined as a method that synthesizes the amorphous-crystalline heterostructures utilizing at least two steps, which either repeats a certain synthesis approach or combines different synthesis approaches. Typically, a fundamental building block is firstly prepared by the selected method and employed as substrate at next step for the other component growth via the same or different method.…”

“…As expected, the a/c-RuO 2 shows low OER overpotentials of 205 mV at 10 mAcm −2 and ultralong electrocatalytic stability of 60 h without obvious overpotential increase (Figure 5i), which is superior to benchmark RuO 2 and most reported OER electrocatalysts so far. [152] Moreover, inspired by the outstanding electrocatalytic ability of amorphous-crystalline heterostructures for OER, other analogous nanomaterials, such as (WO 2 -Na x WO 3 )@FeOOH/NF, [103] FeNi 2 S 4 @NiFe-LDH [105] and c-CoMP/a-CoM LDH/NF [106] et al, have also been accordingly developed and applied for substantially accelerate the commercialization process of electrochemical water splitting. The previously reported researches about amorphous-crystalline heterostructures for OER were further summarized in Table 2.…”

Interfacial engineering of FeWO4/Fe2O3 homometallic heterojunctions for synergistic electrocatalytic water splitting

“…However, its poor electrical conductivity and sluggish oxygen evolution limit its effectiveness as a bifunctional electrocatalyst for complete water splitting. 13–15…”

“…However, its poor electrical conductivity and sluggish oxygen evolution limit its effectiveness as a bifunctional electrocatalyst for complete water splitting. [13][14][15] Engineering doping to construct heterojunction structures provides an intrinsic perspective for optimizing both HER and OER thermodynamic and kinetic factors simultaneously. 16 The heterogeneous interfaces between different composites may induce compressive/tensile lattice strains, generate additional catalytic sites, and modulate their adsorption/desorption capacities for intermediates.…”