Dual-phase CoP−CoTe2 nanowires as an efficient bifunctional electrocatalyst for bipolar membrane-assisted acid-alkaline water splitting

Bifunctional atomically dispersed ruthenium electrocatalysts for efficient bipolar membrane water electrolysis

“…Working in the "forward-bias" configuration, a BPM allows the HER and OER to be accomplished in kinetically favorable acidic and alkaline environments, respectively, at a markedly lowered cell voltage thanks to the assistance of electrochemical neutralization energy. [27][28][29] Such asymmetric acid-alkaline BPMWE using Ru (0.2)-NC as both cathode and anode catalysts can operate under a low cell voltage (V 10 ) of only 0.89 V to deliver 10 mA cm −2 (Fig. 5b).…”

“…It enables the HER to occur in kinetically favorable acidic solution in the cathodic compartment and the OER to simultaneously take place in kinetically favorable alkaline solution in the anodic compartment. Moreover, when used in the "forward-bias" configuration (e.g., CEM side facing the cathode and AEM side facing the anode), 27,28 the external electrical energy needed to drive water electrolysis can be significantly diminished due to the assistance of electrochemical neutralization of acid and alkaline. BPMWE has been recently reported with a number of earth-abundant electrocatalysts, [27][28][29] and has showed preferable energy-saving feature in comparison to the conventional proton exchange membrane water electrolysis (PEMWE) or anion exchange membrane water electrolysis (AEMWE).…”

“…, CEM side facing the cathode and AEM side facing the anode), 27,28 the external electrical energy needed to drive water electrolysis can be significantly diminished due to the assistance of electrochemical neutralization of acid and alkaline. BPMWE has been recently reported with a number of earth-abundant electrocatalysts, 27–29 and has showed preferable energy-saving feature in comparison to the conventional proton exchange membrane water electrolysis (PEMWE) or anion exchange membrane water electrolysis (AEMWE).…”

Efficient water oxidation using an Fe-doped nickel telluride–nickel phosphide electrocatalyst by partial phosphating

“…To further improve the OER activities of the transition metal tellurides, several strategies including composition regulation, heteroatom doping, defect engineering and so on, have been reported currently. [21][22][23][24][25] Among them, combing transition metal tellurides with other materials (e.g., phosphides and suldes) to form multi-component hybrids is recognized as one of the most promising strategies to boost the electrocatalytic performance for the OER. For example, Xu et al reported a NiTe 2 /Ni(OH) 2 hybrid nanosheet electrocatalyst on carbon ber cloth, which showed good OER activity due to the incorporation of NiTe 2 and Ni(OH) 2 and the lattice distortion in the catalyst.…”

“…To further improve the OER activities of the transition metal tellurides, several strategies including composition regulation, heteroatom doping, defect engineering and so on, have been reported currently. 21–25 Among them, combing transition metal tellurides with other materials ( e.g. , phosphides and sulfides) to form multi-component hybrids is recognized as one of the most promising strategies to boost the electrocatalytic performance for the OER.…”