Highly efficient electrocatalytic hydrogen evolution coupled with upcycling of microplastics in seawater enabled via Ni3N/W5N4 janus nanostructures

Hierarchically structured nickel/molybdenum nitride heterojunctions as superior bifunctional electrodes for overall water splitting

“…Recently, nickel nitride-based heterojunctions are widely developed, such as Ni 3 N/Co 2 N, NiMoN/ Ni 3 N, and Ni 3 N/W 5 N 4 heterostructures, and Ni 0.2 Mo 0.8 N/Fedoped Ni 3 N nanosheet arrays, exhibiting promising catalytic activity for water splitting. [33][34][35][36] However, there is still a lot of room for performance improvement to realize their application in the field of industrial electrolysis.…”

Designing a Built-In Electric Field for Efficient Energy Electrocatalysis

“…The work function and Fermi level are usually used to preliminarily judge the orientation and the strength of BIEF. − Generally speaking, the e – tends to flow from the surface of material A with low work function (high Fermi level) to B with high work function (low Fermi level). Thus, the direction of produced BIEF at the interface is from A to B. − It is noted that the higher difference in ratio of work function to Fermi energy level between two materials usually corresponds to stronger BIEF. , As for electrochemical impedance spectroscopy (EIS), it is employed to acquire the Mott–Schottky plots and judge the type of semiconductors, thus qualitatively characterizing the BIEF. The acquired Mott–Schottky plots are employed to assess the flat bands of potential.…”

Plastic Waste Valorization by Leveraging Multidisciplinary Catalytic Technologies

“…This work showcases the processing design for plastic upcycling and displays structure–catalytic activity correlation studies by leveraging electrocatalytic techniques in electrooxidation of biomass derivatives. Further development of advanced electrocatalysts and integration with upstream photovoltaic generation are currently in progress. − Moreover, integrating anodic plastic reclamation with CO 2 reduction shows the merits of increasing economic value of products and alleviating environmental pollution …”

“…Experimental analysis combined with density functional theory (DFT) calculations suggested that EG was oxidized to glyoxal as the reaction intermediate, which was then converted to formate directly via C–C bond cleavage. Recently, electrocatalytic upcycling of microplastic in seawater coupled with HER was achieved over a bifunctional Ni 3 N/W 5 N 4 catalyst with Janus nanostructures . The PET upcycling process occurs prior to both the chlorine evolution reaction (CER) and the oxygen evolution reaction (OER), with the FE for formate reaching as high as 85% and the FE for H 2 close to 100%.…”

“…Recently, electrocatalytic upcycling of microplastic in seawater coupled with HER was achieved over a bifunctional Ni 3 N/W 5 N 4 catalyst with Janus nanostructures. 121 The PET upcycling process occurs prior to both the chlorine evolution reaction (CER) and the oxygen evolution reaction (OER), with the FE for formate reaching as high as 85% and the FE for H 2 close to 100%. The catalyst was stable for 300 h under industrial currents of 100 and 200 mA.…”