Nersisyan, Hayk H. Jeong, Junmo Suh, Hoyoung Lee, Jong Hyeon 2025-04-25T08:00:59Z 2025-04-25T08:00:59Z 2025-04-25 2025-05 0008-6223 https://pubs.kist.re.kr/handle/201004/152343 A straightforward, energy-efficient, and scalable combustion synthesis (CS) method for synthesizing graphitized hollow carbon nanocube (G-HCNC) through the magnesiothermic reduction of CaCO3 is developed. By controlling the synthesis temperature, we effectively modulated the size of self-templated MgO nanocubes, thereby influencing the size and surface area of the hollow carbon nanocubes formed on the MgO surface. In our ongoing experiments, the edge size of G-HCNC ranged from 100 to 500 nm, with a 15-50 nm thickness. Remarkably, a specific surface area as high as 977.5 m2/g near the combustion boundary at k = 8 is achieved. When tested as support for Mo2C electrocatalyst, G-HCNC demonstrated low overpotential (120 mV) in the hydrogen evaluation reaction (HER). Moreover, when loaded with 10 % Ag, G-HCNC exhibits an excellent specific capacity (428.9 F/ g) in a KOH electrolyte. This development holds promise for generating various complex structures enveloped by graphitized carbon layers for energy storage applications. English Pergamon Press Ltd. Combustion synthesis of carbon hollow nanocubes: DFT modelling and electrochemical performance analysis Article 10.1016/j.carbon.2025.120268 1 Carbon, v.238 Carbon 238 N scie scopus 001460547300001 2-s2.0-105001157359 Chemistry, Physical Materials Science, Multidisciplinary Chemistry Materials Science Article RAMAN-SPECTROSCOPY OXYGEN REDUCTION NANOCAGES NANOPARTICLES ELECTRODE SULFUR NANOSPHERES NANOTUBES FRAMEWORK GRAPHENE Combustion synthesis Hollow carbon nanocubes Self-templating Magnesium oxide Calcium carbonate