Co2B and Co Nanoparticles Immobilized on the N-B-Doped Carbon Derived from Nano-B4C for Efficient Catalysis of Oxygen Evolution, Hydrogen Evolution…
Authors of this article are:
Liu X, Wang Y, Chen L, Chen P, Jia S, Zhang Y, Zhou S, Zang J.
A summary of the article is shown below:
A novel hybrid electrocatalyst of Co2B and Co nanoparticles immobilized on N-B-doped carbon derived from nano-B4C (Co2B/Co/N-B-C/B4C) is in situ synthesized by pyrolysis of nano-B4C supporting Co(OH)2 nanoparticles with melamine. The Co2B and Co nanoparticles are formed and anchored on the generated N and B codoped carbon and undecomposed B4C. The hybrid exhibits remarkable catalytic performances toward the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR)-a very small potential of 1.53 V at 10 mA cm-2 for the OER and a high catalytic kinetics and superior durability for the ORR-which are superior to the RuO2 and Pt/C catalyst, respectively. Most impressively, the hybrid delivers a very small potential gap of 710 mV, which is lower than those of most bifunctional electrocatalysts reported. In addition, the hybrid also shows a satisfying hydrogen evolution reaction performance offering a small overpotential of 220 mV at 10 mA cm-2 and wonderful stability. The excellent trifunctional catalytic performances issue from synergetic effects of Co2B, metal Co, Co/N-doped carbon, and B self-doped carbon coexisting in the hybrid with good interaction mutually. This work provides a new-type efficient multifunctional catalyst for regenerative fuel cell and overall water-splitting technologies.
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This article is a good source of information and a good way to become familiar with topics such as:
Co2B and Co nanoparticles immobilized nitrogen-boron-doped carbon;nano-B4C;overall water splitting;regenerative fuel cell;synergistic effects;trifunctional electrocatalyst
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