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Title: Single-atom Rh/N-doped carbon electrocatalyst for formic acid oxidation

Journal Article · · Nature Nanotechnology
 [1]; ORCiD logo [2]; ORCiD logo [3];  [4];  [4]; ORCiD logo [5];  [4];  [6];  [6];  [7]; ORCiD logo [8];  [9]; ORCiD logo [10];  [11];  [8]; ORCiD logo [9];  [12];  [12];  [4];  [4] more »; ORCiD logo [3]; ORCiD logo [4];  [4] « less
  1. Tsinghua Univ., Beijing (China); Central South Univ., Changsha (China)
  2. Chinese Academy of Sciences (CAS), Beijing (China). Inst. of High Energy Physics, Beijing Synchrotron Radiation Facility
  3. Xi’an Jiaotong Univ. (China)
  4. Tsinghua Univ., Beijing (China)
  5. Chinese Academy of Science (CAS), Shanghai (China). Shanghai Inst. of Applied Physics, Shanghai Synchrotron Radiation Facilities
  6. Chinese Academy of Sciences, Changchun (China). Changchun Inst. of Applied Chemistry; Jilin Province Key Lab. of Low Carbon Chemical Power Sources, Changchun (China)
  7. Beijing Univ. of Chemical Technology (China)
  8. Xiamen Univ. (China)
  9. Wuhan Univ. (China)
  10. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
  11. Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Lab. for Condensed Matter Physics,
  12. Central South Univ., Changsha (China)

To meet the requirements of potential applications, it is of great importance to explore new catalysts for formic acid oxidation that have both ultra-high mass activity and CO resistance. In this work, we successfully synthesize atomically dispersed Rh on N-doped carbon (SA-Rh/CN) and discover that SA-Rh/CN exhibits promising electrocatalytic properties for formic acid oxidation. The mass activity shows 28- and 67-fold enhancements compared with state-of-the-art Pd/C and Pt/C, respectively, despite the low activity of Rh/C. Interestingly, SA-Rh/CN exhibits greatly enhanced tolerance to CO poisoning, and Rh atoms in SA-Rh/CN resist sintering after long-term testing, resulting in excellent catalytic stability. Density functional theory calculations suggest that the formate route is more favourable on SA-Rh/CN. According to calculations, the high barrier to produce CO, together with the relatively unfavourable binding with CO, contribute to its CO tolerance.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
National Key Research and Development Program of China; National Natural Science Foundation of China (NSFC); China Postdoctoral Science Foundation; Jilin Province Science and Technology Development Program; USDOE Laboratory Directed Research and Development (LDRD) Program; Youth Innovation Promotion Association CAS
Grant/Contract Number:
AC02-76SF00515; 21671117; 21871159; 21890383
OSTI ID:
1616956
Journal Information:
Nature Nanotechnology, Vol. 15, Issue 5; ISSN 1748-3387
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 256 works
Citation information provided by
Web of Science

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