Journal article
Effect of Phosphorus Modulation in Iron Single‐Atom Catalysts for Peroxidase Mimicking
Advanced materials (Weinheim), Vol.36(10)
03/13/2023
Abstract
Fe–N–C single‐atom catalysts (SACs) exhibit excellent peroxidase (POD)‐like catalytic activity, owing to their well‐defined isolated iron active sites on the carbon substrate, which effectively mimic the structure of natural peroxidase's active center. To further meet the requirements of diverse biosensing applications, SAC POD‐like activity still needs to be continuously enhanced. Herein, a phosphorus (P) heteroatom is introduced to boost the POD‐like activity of Fe–N–C SACs. A 1D carbon nanowire (FeNCP/NW) catalyst with enriched Fe–N
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active sites is designed and synthesized, and P atoms are doped in the carbon matrix to affect the Fe center through long‐range interaction. The experimental results show that the P‐doping process can boost the POD‐like activity more than the non‐P‐doped one, with excellent selectivity and stability. The mechanism analysis results show that the introduction of P into SAC can greatly enhance POD‐like activity initially, but its effect becomes insignificant with increasing amount of P. As a proof of concept, FeNCP/NW is employed in an enzyme cascade platform for highly sensitive colorimetric detection of the neurotransmitter acetylcholine.
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Details
- Title
- Effect of Phosphorus Modulation in Iron Single‐Atom Catalysts for Peroxidase Mimicking
- Creators
- Shichao Ding - School of Mechanical and Material Engineering Washington State University Pullman WA 99164 USA] (ORCID:000000033795306XJordan Alysia Barr - Washington State UniversityZhaoyuan Lyu - Washington State UniversityFangyu Zhang - University of California, San DiegoMaoyu Wang - Oregon State UniversityPeter Tieu - University of California, IrvineXin Li - Washington State UniversityMark H. Engelhard - Pacific Northwest National LaboratoryZhenxing Feng - Oregon State UniversityScott P. Beckman - Washington State UniversityXiaoqing Pan - Irvine Materials Research Institute (IMRI) Department of Physics and Astronomy Department of Materials Science and Engineering University of California, Irvine Irvine CA 92697 USA] (ORCID:0000000209658568Jin‐Cheng Li - School of Mechanical and Material Engineering Washington State University Pullman WA 99164 USA] (ORCID:000000020558774XDan Du - Washington State UniversityYuehe Lin - Washington State University
- Publication Details
- Advanced materials (Weinheim), Vol.36(10)
- Academic Unit
- School of Mechanical and Materials Engineering
- Publisher
- Wiley Blackwell (John Wiley & Sons)
- Identifiers
- 99901227636401842
- Language
- English
- Resource Type
- Journal article