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Title: Boosting Oxygen Reduction of Single Iron Active Sites via Geometric and Electronic Engineering: Nitrogen and Phosphorus Dual Coordination

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.9b11852· OSTI ID:1604565
ORCiD logo [1];  [2];  [3];  [4];  [3];  [5];  [4]; ORCiD logo [6];  [7]; ORCiD logo [3];  [2]
  1. Nanchang Univ., (China). College of Chemistry/Inst. of Polymers and Energy Chemistry; Bergische Univ. (Germany). Macromolecular Chemistry Group and Inst. for Polymer Technology
  2. Bergische Univ. (Germany). Macromolecular Chemistry Group and Inst. for Polymer Technology
  3. Nanchang Univ., (China). College of Chemistry/Inst. of Polymers and Energy Chemistry
  4. Central China Normal Univ., Wuhan (China). Inst. of Nanoscience and Nanotechnology, College of Physical Science and Technology
  5. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
  6. Shanghai Jiao Tong Univ. (China). Meso-Entropy Matter Lab, Shanghai Key Lab. of Electrical Insulation and Thermal Ageing, State Key Lab. of Metal Matrix Composites, School of Chemistry and Chemical Engineering
  7. City Univ. of Hong Kong (Hong Kong). Inst. Ability R&D Energy Research Centre, School of Energy and Environment

Atomically dispersed transition metal active sites have emerged as one of the most important fields of study because they display promising performance in catalysis and have the potential to serve as ideal models for fundamental understanding. However, both the preparation and determination of such active sites remain a challenge. The structural engineering of carbon- and nitrogen-coordinated metal sites (M–N–C, M = Fe, Co, Ni, Mn, Cu, etc.) via employing new heteroatoms, e.g., P and S, remains challenging. In this study, carbon nanosheets embedded with nitrogen and phosphorus dual-coordinated iron active sites (denoted as Fe-N/P-C) were developed and determined using cutting edge techniques. Both experimental and theoretical results suggested that the N and P dual-coordinated iron sites were favorable for oxygen intermediate adsorption/desorption, resulting in accelerated reaction kinetics and promising catalytic oxygen reduction activity. This work not only provides efficient way to prepare well-defined single-atom active sites to boost catalytic performance but also paves the way to identify the dual-coordinated single metal atom sites.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-76SF00515; 2018M632599; 18PJ1406100; 19JC412600; CCNU18TS045; BX201700112; 2018CFB531; 21704038; 21720102002; 5171101862; 51722304; 51761135114; 51811530013; 51973114; 20171ACB21009; 2018ACB21021; 20192BCB23001; 2017YFE9134000
OSTI ID:
1604565
Journal Information:
Journal of the American Chemical Society, Vol. 142, Issue 5; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 391 works
Citation information provided by
Web of Science

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