Lei Zhang, Associate Professor, from the School of Electronic Information Engineering recently published a paper in International renowned journal
Lei Zhang, Associate Professor, from the School of Electronic Information Engineering recently published the title " Electrocatalytically Inactive Copper Improves the Water Adsorption/Dissociation on Ni3S2 for Accelerated Alkaline and Neutral Hydrogen Evolution " in the internationally renowned journal "Nanoscale" (Zone 1, Chinese Academy of Sciences, IF = 6.895) with the first author and Changshu Institute of Technology as the first completion unit. This study reported a an electrocatalytically inactive copper doping strategy to promote the water adsorption and dissociation process of Ni3S2 (Cu-Ni3S2) nanoparticles ensembled on nickel foam (NF) towards improved alkaline and neutral hydrogen evolution. The results show that the as-synthesized Cu-Ni3S2 exhibits excellent electrocatalytic activity and long-term stability for HER in alkaline and neutral media. Only 121 and 218 mV of overpotentials are needed to drive the current density of 10 mA cm-2 in 1 M KOH and 1 M phosphate-buffered saline (PBS) solution, respectively, which are much lower than those of bare Ni3S2 and other reported advance metal dichalcogenides-based catalysts. Thesis link:
https://pubs.rsc.org/sv/content/articlelanding/2021/nr/d0nr07275c#!divAbstract
Figure 1 HER performance comparison of Ni3S2 and Cu-Ni3S2: (a) LSV curves, (b) Tafel plots and (c) LSV curves before and after 2000 cycles in 1 M KOH solution; (d) LSV curves, (e) Tafel plots and (f) LSV curves before and after 2000 cycles in 1 M PBS solution. (g) Comparation of the HER overpotentials of the resultant Cu-Ni3S2 with state-of-the-art NiSx electrocatalysts reported previously.
Lei Zhang is an associate professor in Deapartment of New Energy Science and Engineering, School of Electronic Information Engineering, Changshu Institute of Technology. He received her PhD degree in 2013 from Nanjing University of Aeronautics and Astronautics (China). His current research interests focus on the energy conversion, including water splitting and thin film solar cells. He has published 20+ papers in prestigious international refereed journals.
