Crystallized phosphorus/carbon composites with tunable PC bonds by high pressure and high temperature. (July 2019)

• Record Type: Journal Article
• Authors: Yang, Zhenxing; Zhou, Yuhong; Chu, Dongliang; Yang, Zhenzhen; Hu, Kuo; Zhang, Hua; Ma, Shuailing; Zhang, Dong; He, Tianmin; Lu, Guohui; Ma, Hongan; Yao, Mingguang; Liu, Bingbing
• Is Part Of: Journal of physics and chemistry of solids. Volume 130(2019)
• Page Start: 250
• Page End: 255
• Publication Date: 2019-07
• Subjects: Crystallized phosphorus/carbon composites -- PC bonds -- High pressure -- Electrochemical performance; Solids -- Periodicals; Solides -- Périodiques; Solids; Periodicals; 530.41
• DOI: 10.1016/j.jpcs.2019.02.033
• Languages: English
• ISSNs: 0022-3697

Abstract

Abstract: Crystallized black phosphorus-graphite (BP-G) composites with tunable phosphorus carbon (PC) bonds have been prepared by a facile high pressure and high temperature (HPHT) method. It is found that PC bonds were formed between phosphorus and graphene layers, and their concentration can be tuned by controlling the ratio of the two precursors (i.e., red phosphorus and graphitic carbon nitride). The maximum content of PC bond is ∼13.3% in the obtained composites by HPHT treatment, which reaches the highest record reported previously by other methods. Meanwhile, by combining theoretical calculation with experiment, we studied the bonding sites of PC bonds, and also the effect of PC bonds on the cycling performance of crystallized BP-G composites, which sheds new insights into our understanding on the electrochemical performance of phosphorus/carbon materials. Graphical abstract: Image 1 Highlights: BP-G composites with crystallized BP were prepared by a simple HPHT method. The maximum content of PC bond reaches a value of 13.3% in the BP-G composites. The HRTEM and theoretical calculation reveal bonding at the contact boundary. The PC bonds effect on the cycling performance of BP-G composites were revealed.