Engineering of bionic Fe/Mo bimetallene for boosting the photocatalytic nitrogen reduction performance

Recent advanced strategies for bimetallenes toward electrocatalytic energy conversion reactions

“…A new bimetallic, FeMo, was also utilized for the photocatalytic nitrogen reduction reaction, which is capable of transportation and separation of photogenerated carriers with multi-electron redox reactions. 73 With such extensive and growing applications of bimetallenes, a bright future can be predicted for these attractive two-dimensional materials, and we see their varied and new applications day by day. PdMo bimetallene with unsaturated Pd atoms and strain effects in a composite with Ti 3 C 2 T x MXene nanosheets, which optimizes the electronic structure of the bimetallene, has shown remarkable electrocatalytic behavior for formic acid and methanol oxidation.…”

“FeV-cofactor”-inspired bionic Fe-doped BiVO4photocatalyst decorated with few-layer 2D black phosphorus for efficient nitrogen reduction

“…In classical photocatalysis, electrons on VB are excited and transferred to the conduction band (CB) to obtain photoinduced electrons (e CB − ) and form holes in VB (h VB + ), as shown in eqn (13). N 2 molecules are adsorbed onto the V sites of the (0 4 0) plane in BiVO 4 , then capture e CB − and combine with the V-O bond to form a stable adsorption structure (V 4+ @NN), as shown in eqn (14). At the same time, Fe 3+ captures e CB − to form Fe 2+ (eqn (15).…”

“…Our previous research also suggested that constructing a bionic FeMo-cofactor effectively enhances the nitrogen reduction activity. The formation of a bionic “FeMo-cofactor” in Fe-doped MoTe 2 13 and Fe/Mo bimetallene-coated Bi 2 Mo 0.3 W 0.7 O 6 nanocrystals 14 can effectively promote the separation and transfer of photoinduced carriers. However, despite structural similarities between the FeV-cofactor and FeMo-cofactor in nitrogenase, these variants exhibit different nitrogen reduction mechanisms, 15 and it is unclear how different metal compositions affect catalytic performance and the possible mechanisms.…”

A rhodium–cobalt alloy bimetallene towards liquid C1 molecule electrooxidation in alkaline media

“…27 Meanwhile, the introduction of a second element can further elevate the electroactivity of metallene by means of the electronic effect, ensemble effect, bifunctional mechanism, etc. [28][29][30][31][32] For example, Cr-doped Pd metallene exhibited enhanced electroactivity compared to Pd metallene for formaldehyde electrooxidation, originating from the electronic modulation of Pd by Cr over the combination between Pd and CO ads . 28 RhPdH metallene displayed enhanced electroactivity compared to RhPd metallene for the hydrogen evolution reaction, which is derived from the pronounced hydrogen storage capacity of RhPdH metallene.…”