Atomic Fe & FeP nanoparticles synergistically facilitate oxygen reduction reaction of hollow carbon hybrids

Silk‐Derived N‐Doped Fe@NPC as Efficient Bifunctional Electrocatalyst for Direct Methanol Fuel Cell (DMFC)

“…The nitrogen adsorption‐desorption curve (Figure 2 c and d) was used for further illustrating the structure of Fe@NPC catalyst, and BET (Brunauer‐Emmet‐Teller) surface area and porosity distribution of Fe@NPC were 124.494 m 2 g −1 and 0.147 m 3 g −1 , respectively. The BET surface area of the sample is higher than that of the reported some hetero‐atom doped catalysts, such as FeP@SA−Fe/HC (110.5 m 2 g −1 ) [9a] . The fairly high SBET may drive from three‐dimensional flocculent porous structure, which caused by polyaniline and silk fiber intertwined each other.…”

Engineering atomic Fe–N–C with adjacent FeP nanoparticles in N,P-doped carbon for synergetic oxygen reduction and zinc–air battery

“…2h, the P 2p region displayed three peaks at 129.48 (P-Fe), 133.30 (P-C), and 134.14 eV (P-O), respectively. 36 The high resolution XPS spectrum of N 1s is presented in Fig. 2h, from which clear peaks at 402.17, 400.91, 400.46, 398.80, and 398.10 eV, attributed to oxidized-N, graphitic N, pyrrolic N, Fe-N, and pyridinic N bonds, respectively, could be detected.…”

Carbon-Based Electrocatalyst Design with Phytic Acid—A Versatile Biomass-Derived Modifier of Functional Materials

“… Electrocatalyst Precursors Doped Atoms (wt%) Surface Area (m 2 g −1 ) Porous Structure Ref. Template-Free Synthesis NPCNS_700T Phytic acid, chitosan N: 6.40 P: 5.80 - - [ 54 ] N,P-HLC Phytic acid, melamine, glucose N: 4.92 P: 0.55 422 - [ 65 ] FeP@SA-Fe/HC Phytic acid, melamine, iron nitrate, 2-aminoterephthalic acid N: 3.17 P: 4.55 Fe: 0.45 111 Average pore size: 3.87 nm [ 66 ] NPFe-C Phytic acid, melamine, iron(III) chloride hexahydrate N: 3.12 P: 3.51 Fe: 0.81 775 Micropore distribution: 0.90 nm Mesopore distribution: 2–35 nm [ 67 ] NP+NG/PG Phytic acid, 2,6-diaminopyridine, 5-aminouracil N: 4.52 P: 0.67 1114 Micropore distribution: 1–2 nm Mesopore distribution: 2–10 nm …”

“…The amount of PA when used as a modifier can also drastically influence the microstructure of the resulting material. Yang et al observed that if the PA loading when modifying hollow carbon nanostructures (prepared from an iron metal–organic framework) was too high, their spindle shape was completely destroyed ( Figure 6 a,b) [ 66 ]. Similarly, if the amount of PA was too low, it was difficult to obtain a porous and doped carbon composite.…”

“… The effects of different PA loadings for the modification of hollow carbon nanostructures: Morphologies of materials treated with ( a ) 1 mL, ( b ) 0.5 mL, ( c ) 0.2 mL, and ( d ) 0.1 mL of PA. Reproduced with permission from [ 66 ]. Copyright 2020 Elsevier Inc. All rights reserved.…”