Vanadium-induced synthesis of amorphous V–Co–P nanoparticles for an enhanced hydrogen evolution reaction

Abstract

The hydrogen evolution reaction (HER) plays a vital role for the production of pure hydrogen with zero carbon release. Developing high efficiency non-noble metal electrocatalysts could reduce its cost. Here,...

Heterogeneous Co–Ni phosphide with active sites for water dissociation and efficient hydrogen evolution reaction

“…[16][17][18] To address this, researchers have mainly focused on the following three approaches: (i) doping metallic or nonmetallic elements to optimize the atomic hydrogen binding energy and boost its intrinsic activity; (ii) constructing heterostructures between different components to regulate the electronic structure; and (iii) controlling the morphology to provide more exposed active sites. [19][20][21][22] For example, Liu and co-workers 23 proved theoretically and experimentally that NiCoP doped with oxygen has excellent HER activity in alkaline and neutral media, and the atomic hydrogen binding energy on Co and P sites was also close to zero after O doping. Cheng et al fabricated a unique Li x NiO/Ni heterostructure and confirmed that the synergy between Li x NiO and Ni could effectively accelerate the H-OH dissociation step for hydrogen generation in neutral and alkaline electrolytes, leading to a significantly enhanced HER performance.…”