Shared posts

22 May 00:42

[ASAP] Body-Integrated Self-Powered System for Wearable and Implantable Applications

by Bojing Shi, Zhuo Liu, Qiang Zheng, Jianping Meng, Han Ouyang, Yang Zou, Dongjie Jiang, Xuecheng Qu, Min Yu, Luming Zhao, Yubo Fan, Zhong Lin Wang, Zhou Li

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ACS Nano
DOI: 10.1021/acsnano.9b02233
28 Jan 15:20

Defect Engineering and Surface Functionalization of Nanocarbons for Metal‐Free Catalysis

by Josue Ortiz‐Medina, Zhipeng Wang, Rodolfo Cruz‐Silva, Aaron Morelos‐Gomez, Feng Wang, Xiangdong Yao, Mauricio Terrones, Morinobu Endo
Advanced Materials Defect Engineering and Surface Functionalization of Nanocarbons for Metal‐Free Catalysis

Doping and defect‐engineering of nanocarbons represent an attractive alternative for metal‐free carbon‐based catalysts, as well as functionalization and their thermal treatment. A considerable amount of research has been conducted for a thorough understanding of the underlying mechanisms of carbon‐based catalysis, which will allow precise control and use of such nanocarbon catalysts.


Abstract

With the advent of carbon nanotechnology, which initiated significant research efforts more than two decades ago, novel materials for energy harvesting and storage have emerged at an amazing pace. Nevertheless, some fundamental applications are still dominated by traditional materials, and it is especially evident in the case of catalysis, and environmental‐related electrochemical reactions, where precious metals such as Pt and Ir are widely used. Several strategies are being explored for achieving competitive and feasible metal‐free carbon nanomaterials, among which doping and defect engineering approaches within nanocarbons are recurrent and promising. Here, the most recent efforts regarding the control of doping and defects in carbon nanostructures for catalysis, and in particular for energy‐related applications, are addressed. Finally, an overview of alternative proposals that can make a difference when enabling carbon nanomaterials as efficient and emerging catalysts is presented.

10 Dec 15:26

Highly Durable and Active PtFe Nanocatalyst for Electrochemical Oxygen Reduction Reaction

by Dong Young Chung, Samuel Woojoo Jun, Gabin Yoon, Soon Gu Kwon, Dong Yun Shin, Pilseon Seo, Ji Mun Yoo, Heejong Shin, Young-Hoon Chung, Hyunjoong Kim, Bongjin Simon Mun, Kug-Seung Lee, Nam-Suk Lee, Sung Jong Yoo, Dong-Hee Lim, Kisuk Kang, Yung-Eun Sung and Taeghwan Hyeon

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Journal of the American Chemical Society
DOI: 10.1021/jacs.5b09653