NbOx nano-nail with a Pt head embedded in carbon as a highly active and durable oxygen reduction catalyst

Ma, Zhong; Li, Shuang; Wu, Lijun; Song, Liang; Jiang, Gaopeng; Liang, Zhixiu; Su, Dong; Zhu, Yimei; Adzic, Radoslav R.; Wang, Jia X.; Chen, Zhongwei

doi:10.1016/j.nanoen.2020.104455

Title: NbO_x nano-nail with a Pt head embedded in carbon as a highly active and durable oxygen reduction catalyst

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Abstract

Further enhancing activity and durability of Pt-based catalysts for oxygen reduction is needed for the automotive application of fuel cells. This is however a very challenging task. Herein, we describe a new method to nail down low-oxidation-state NbO_x nanoparticles at high temperature without overgrowth using the surface pores on carbon and then deposit Pt head selectively on top of NbO_x derived by the redox reduction between themselves. This new structured catalyst, Pt-NbO_xC, exhibited mass activities higher than 0.5 A mg^–1 after 50,000 cycles between 0.6 and 1.0 V and 5,000 cycles between 1 and 1.5 V, which are 7 and 4 times of the 0.07 and 0.13 A mg^–1, respectively, on Pt/C. That high sustainable ORR activity is ascribed to strong metal-support interaction that maximizes Pt utilization and minimizes particle agglomeration, carbon corrosion and metal oxidation. As a result, the method embedded nanoparticles into carbon pores will likely be used in developing small particles with uniform dispersion for various applications.

Authors:

^[1]; Li, Shuang ^[2]; Wu, Lijun ^[2]; Song, Liang ^[2];

^[1]; Liang, Zhixiu ^[2]; Su, Dong ^[2]; Zhu, Yimei ^[2]; Adzic, Radoslav R. ^[2];

^[2]; Chen, Zhongwei ^[1]

Univ. of Waterloo, ON (Canada)
Brookhaven National Lab. (BNL), Upton, NY (United States)

Publication Date:: Tue Jan 07 00:00:00 EST 2020

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1582567

Alternate Identifier(s):: OSTI ID: 1694280

Report Number(s):: BNL-213510-2020-JAAM
Journal ID: ISSN 2211-2855

Grant/Contract Number:: SC0012704

Resource Type:: Accepted Manuscript

Journal Name:: Nano Energy

Additional Journal Information:: Journal Volume: 69; Journal Issue: C; Journal ID: ISSN 2211-2855

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 30 DIRECT ENERGY CONVERSION; Oxygen reduction reaction; fuel cells; Pt; NbOx; Strong metal-support interaction; Surface pore; Selectively deposition

Citation Formats


                    Ma, Zhong, Li, Shuang, Wu, Lijun, Song, Liang, Jiang, Gaopeng, Liang, Zhixiu, Su, Dong, Zhu, Yimei, Adzic, Radoslav R., Wang, Jia X., and Chen, Zhongwei. NbOx nano-nail with a Pt head embedded in carbon as a highly active and durable oxygen reduction catalyst.  United States: N. p., 2020. 
Web.  doi:10.1016/j.nanoen.2020.104455.

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                    Ma, Zhong, Li, Shuang, Wu, Lijun, Song, Liang, Jiang, Gaopeng, Liang, Zhixiu, Su, Dong, Zhu, Yimei, Adzic, Radoslav R., Wang, Jia X., & Chen, Zhongwei. NbOx nano-nail with a Pt head embedded in carbon as a highly active and durable oxygen reduction catalyst.  United States.  https://doi.org/10.1016/j.nanoen.2020.104455

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                    Ma, Zhong, Li, Shuang, Wu, Lijun, Song, Liang, Jiang, Gaopeng, Liang, Zhixiu, Su, Dong, Zhu, Yimei, Adzic, Radoslav R., Wang, Jia X., and Chen, Zhongwei. Tue .  
"NbOx nano-nail with a Pt head embedded in carbon as a highly active and durable oxygen reduction catalyst".  United States.  https://doi.org/10.1016/j.nanoen.2020.104455.  https://www.osti.gov/servlets/purl/1582567.

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@article{osti_1582567,

  title        = {NbOx nano-nail with a Pt head embedded in carbon as a highly active and durable oxygen reduction catalyst},

  author       = {Ma, Zhong and Li, Shuang and Wu, Lijun and Song, Liang and Jiang, Gaopeng and Liang, Zhixiu and Su, Dong and Zhu, Yimei and Adzic, Radoslav R. and Wang, Jia X. and Chen, Zhongwei},

  abstractNote = {Further enhancing activity and durability of Pt-based catalysts for oxygen reduction is needed for the automotive application of fuel cells. This is however a very challenging task. Herein, we describe a new method to nail down low-oxidation-state NbOx nanoparticles at high temperature without overgrowth using the surface pores on carbon and then deposit Pt head selectively on top of NbOx derived by the redox reduction between themselves. This new structured catalyst, Pt-NbOxC, exhibited mass activities higher than 0.5 A mg–1 after 50,000 cycles between 0.6 and 1.0 V and 5,000 cycles between 1 and 1.5 V, which are 7 and 4 times of the 0.07 and 0.13 A mg–1, respectively, on Pt/C. That high sustainable ORR activity is ascribed to strong metal-support interaction that maximizes Pt utilization and minimizes particle agglomeration, carbon corrosion and metal oxidation. As a result, the method embedded nanoparticles into carbon pores will likely be used in developing small particles with uniform dispersion for various applications.},

  doi          = {10.1016/j.nanoen.2020.104455},

  journal      = {Nano Energy},

  number       = C,

  volume       = 69,

  place        = {United States},

  year         = {Tue Jan 07 00:00:00 EST 2020},

  month        = {Tue Jan 07 00:00:00 EST 2020}

}

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Title: NbOx nano-nail with a Pt head embedded in carbon as a highly active and durable oxygen reduction catalyst

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Title: NbO_x nano-nail with a Pt head embedded in carbon as a highly active and durable oxygen reduction catalyst