Exploring Fibrin Protein Hydrogels for the Production of Heteroatom‐Doped Porous Carbon Nanoarchitectures as Efficient Metal‐Free Oxygen Reduction Reaction Catalysts DOI Creative Commons
Woong-Ju Kim, Sun Hee Choi,

Se In Kim

et al.

International Journal of Energy Research, Journal Year: 2024, Volume and Issue: 2024(1)

Published: Jan. 1, 2024

Although protein hydrogels are excellent carbonization precursors for synthesizing carbon nanoarchitectures as efficient metal‐free oxygen reduction reaction (ORR) catalysts, research on this topic has rarely been conducted. In study, fibrin templated with sodium chloride (NaCl) crystals proposed novel the manufacture of heteroatom‐doped planar nanostructures containing internal pores. By systematically adjusting conditions, it is revealed that their effects material properties and ORR characteristics. The catalyst carbonized at 900°C 12 hr demonstrated performances in an alkaline solution, including onset potential (E ; 0.86 V vs. reversible hydrogen electrode), diffusion‐limited current (–4.0 mA cm −2 0.05 V), electron transfer number (2.84), durability (–18 mV shift Eon after 30,000 cycles). This attributed to synergistic action fast out‐of‐plane transport, sufficient adsorption sites, enhanced activity by heteroatom doping, effective mass through interconnected

Language: Английский

Porous Materials for Electrocatalytic Oxygen Reduction Reaction DOI
Jing Li, Chang Long, Jun Guo

et al.

Published: Dec. 13, 2024

Porous materials have been widely studied as oxygen reaction reduction (ORR) catalysts since they large surface areas and abundant pore channels, which effectively enhance mass transport provide accessible active sites in electrocatalytic reactions. In this chapter, the recent research on porous materials, including fabrication strategies application ORR catalysts, is summarized. Selected examples insights into structural–performance relationships between structures performance.

Language: Английский

Citations

0
Exploring Fibrin Protein Hydrogels for the Production of Heteroatom‐Doped Porous Carbon Nanoarchitectures as Efficient Metal‐Free Oxygen Reduction Reaction Catalysts DOI Creative Commons
Woong-Ju Kim, Sun Hee Choi,

Se In Kim

et al.

International Journal of Energy Research, Journal Year: 2024, Volume and Issue: 2024(1)

Published: Jan. 1, 2024

Although protein hydrogels are excellent carbonization precursors for synthesizing carbon nanoarchitectures as efficient metal‐free oxygen reduction reaction (ORR) catalysts, research on this topic has rarely been conducted. In study, fibrin templated with sodium chloride (NaCl) crystals proposed novel the manufacture of heteroatom‐doped planar nanostructures containing internal pores. By systematically adjusting conditions, it is revealed that their effects material properties and ORR characteristics. The catalyst carbonized at 900°C 12 hr demonstrated performances in an alkaline solution, including onset potential (E ; 0.86 V vs. reversible hydrogen electrode), diffusion‐limited current (–4.0 mA cm −2 0.05 V), electron transfer number (2.84), durability (–18 mV shift Eon after 30,000 cycles). This attributed to synergistic action fast out‐of‐plane transport, sufficient adsorption sites, enhanced activity by heteroatom doping, effective mass through interconnected

Language: Английский

Citations

0