Self-adaptive evolution of nickel silicide nanowires for the enhancement of bifunctional electrocatalytic activities

Two-Dimensional Hierarchical CoTe/NiFe Layered Double Hydroxide Heterostructure for High-Performance Electrocatalytic Water Oxidation

“…The O V (531.2 eV) peak is assigned to the oxygen vacancy in a lattice. The O L (530.4 eV) peak represents lattice oxygen in the metal oxides . The proportion of O V in the O 1s spectra is 0.47 for the CoTe NS/NiFe LDH, exhibiting a higher value than that of the NiFe LDH (0.38).…”

Recent advances in noble metal-free electrocatalysts to achieve efficient alkaline water splitting

“…(j) Fabricating alloy/B/V/F/Si based noble metal-free electrocatalysts enhanced the performance for the HER and OER, while various strategies including preparing nanostructures/heterostructures/heterojunctions/hollow structures/ultrathin structures/porous structures/creating high valence sites, electrochemical activation, and designing facile synthesis routes enhanced the performance. 8,122–132…”

“…In contrast, the subsequent electrochemical activation could increase the oxygen vacancies, enhance the conductivity, provide optimal adsorption energy with intermediates, increase the electrochemical surface area, and that could enhance the performance of the HER and OER. Chang et al 132 observed that SAE HER -ECT-NiSi exhibits enhanced activity and stability for the HER, while SAE OER -ECT-NiSi exhibits enhanced activity and stability for the OER. In SAE HER -ECT-NiSi, the NiSi nanowires prepared by CVD are subjected to ECT followed by SAE HER , where ECT is an electrochemical tuning process comprising lithiation and rapid delithiation of NiSi.…”

Integrated Heterogeneous Engineering with the Vacancy Defect of Porous CoPv-MoxPv Nanosheets for an Accelerated Hydrogen Evolution Reaction

“…9 The design and implementation of an efficient and low-cost non-precious metal electrocatalyst could accelerate the industrialization of the production of hydrogen via EWS to a certain extent. 10,11 To date, transition metal-based hydrogen evolution reaction (HER) electrocatalysts, like transition metal oxides, nitrides, sulfides, and phosphides, have been broadly designed and investigated, but their HER performance is still unsatisfactory. 12−17 Approaches for optimizing the HER performance of transition metal-based electrocatalysts have also been widely reported, such as nanostructure construction, heterogeneous elemental doping, interfacial engineering, and vacancy engineering.…”

“…Although the precious metal catalysts (e.g., Pt, Ir, and Ru) currently applied in the industry have excellent hydrogen precipitation performance, their application prospects are greatly restricted by their high cost of exploitation, their limited reserves in the earth, and the stability of their actual electrolysis . The design and implementation of an efficient and low-cost non-precious metal electrocatalyst could accelerate the industrialization of the production of hydrogen via EWS to a certain extent. , …”