Development of polyoxometalate-based Ag-H₂biim inorganic–organic hybrid compounds functionalized for the acid electrocatalytic hydrogen evolution reaction

Abstract

Electrocatalytic hydrogen evolution reaction (HER) is an ideal method for hydrogen production. The transition metal complex electrocatalysts exhibit poor HER activity due to excessive or weak adsorption toward H for...

Recent research progress on polyoxometalate-based electrocatalysts in energy generation

“…We performed a detailed analysis based on the study conducted by Li et al on Keggin-type POMs and Dawson-type POMs. 101 In the electrocatalytic HER process, Dawson-type POMs generally exhibit superior performance compared to Keggin-type POMs, which can be attributed to the following factors: (I) structural and active sites differences: Dawson-type POMs and Keggin-type POMs possess distinct structures and active sites. (II) Electron transfer capability: Dawson-type POMs typically exhibit better electron transfer characteristics, which facilitate fast electron transfer and participation in catalytic reactions.…”

“…By utilizing advanced characterization techniques to explore active sites and reaction intermediates, complex electrocatalytic processes can be elucidated. 101 It provides valuable insights for the design and development of more efficient HER electrocatalysts.…”

“…Li et al proposed a novel strategy to enhance the HER performance by incorporating POM-modified Ag materials, which effectively reduced the overpotential required for the reaction under acidic conditions. 101 The researchers synthesized an inorganic–organic hybrid compound by combining the [P 2 W 18 O 62 ] 6− (P 2 W 18 ) POM with Ag-2,2′-bipyrimidine (H 2 biim), resulting in the formation of {K 2 [(Ag 2 (H 2 biim) 2 ) 2 (P 2 W 18 O 62 )]·2H 2 O} n . During the HER process, a reconstructive phenomenon occurred, leading to the in situ formation of Ag nanoparticles, while maintaining the fundamental structure of P 2 W 18 .…”

New two fold interpenetrating 3D polyoxovanadate-based metal–organic framework as bifunctional catalyst for the removal of 2-chloroethyl ethyl sulfide and phenolic compounds

“…In recent years, the problem of organic hazardous substances has been an extensively discussed concern [1][2][3]. Therefore, it is important to develop reasonable routes for the degradation of organic hazardous substances [4][5][6].…”

Interfacial engineering of POM-stabilized Ni quantum dots on porous titanium mesh for high-rate and stable alkaline hydrogen production

“…has been generally regarded as a promising avenue for sustainable production of green hydrogen. 1–3 Alkaline water electrolysis is one of the most mature and widely used water electrolysis technologies, which has been commercialized for more than 100 years, due to its low-cost and high durability. 4 However, owing to the sluggish reaction kinetics of the hydrogen evolution reaction (HER) that requires an additional water dissociation step, practical alkaline water splitting is still challenging and demands high overpotentials.…”