HomeNanotechnology3D-printed, nickel-based electrocatalysts allow extremely environment friendly hydrogen evolution

3D-printed, nickel-based electrocatalysts allow extremely environment friendly hydrogen evolution


3D-printed, nickel-based electrocatalysts enable highly efficient hydrogen evolution
Schematic illustration of photo-curing 3D printing of Ni-based electrode. Credit score: SARI

Water electrolysis is an efficient methodology for producing hydrogen utilizing renewable sources of power. The event of cost-effective electrocatalysts for environment friendly and sturdy hydrogen evolution response in alkaline media is of important significance to satisfy the rising demand of hydrogen.

The platinum group metals exhibit glorious exercise in evolution response, however their excessive price hinders their widespread utility.

Not too long ago, a analysis crew led by Prof. Tang Zhiyong and Affiliate Professor Zhang Jie from the Shanghai Superior Analysis Institute (SARI) of the Chinese language Academy of Sciences has proposed a novel photo-curing 3D-printing methodology to straight manufacture structured nickel-based electrocatalysts with distinctive gluten-like cubic construction and powerful catalyst-substrate interplay.

The research was printed in Nano Power.

The photo-curing 3D printing has a a lot decrease manufacturing price than that of the selective laser melting 3D printing, and far increased diploma of freedom and printing accuracy than that of direct ink writing 3D printing.

Primarily based on this know-how, the researchers optimized printing paste composition and post-treatment course of. The resultant electrode floor reveals gluten-like cubic construction, the place Ti exists in amorphous state with with Ni, resulting in elevated and improved electrolytic properties.

The tailor-made nickel-based electrode reveals glorious sturdiness and a outstanding low overpotential, surpassing the business Pt/C catalyst and a lot of the state-of-the-art electrocatalysts.

Density practical idea calculations additional reveal that the Ti doping decreases water dissociation power barrier and hydrogen power barrier, thus enhancing the hydrogen evolution response.

This work supplies a novel technique to exactly put together the structured noble-metal-free catalysts with enhanced exercise in alkaline water electrolysis. Furthermore, the developed photo-curable 3D methodology supplies an alternate possibility for manufacturing low-cost electrocatalysts with advanced 3D structure.


Extremely-small hole alloy nanoparticles for synergistic hydrogen evolution catalysis


Extra data:
Zhaojing Han et al, Direct photo-curing 3D printing of nickel-based electrocatalysts for highly-efficient hydrogen evolution, Nano Power (2022). DOI: 10.1016/j.nanoen.2022.107615

Quotation:
3D-printed, nickel-based electrocatalysts allow extremely environment friendly hydrogen evolution (2022, August 12)
retrieved 14 August 2022
from https://phys.org/information/2022-08-3d-printed-nickel-based-electrocatalysts-enable-highly.html

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