New approach for the reduction of graphene oxide with triphenylphosphine dihalide

Shin, Hyogeun; Kim, Ki Woong; Kang, Yong Goo; Myung, Sung; Kim, Jong Seung; An, Ki Seok; Lee, Ill Young; Lee, Su Yeon

doi:10.1039/c5ra26046a

Cited by 5 publications

(2 citation statements)

References 62 publications

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“…First, as shown in Figure , the basic TPP molecule interacts with surface COOH acid groups present at the GO surface. At high temperatures, TPP is known to deoxygenate GO to lead to RGO and phosphine oxide, Ph 3 PO . The Ph 3 PO is not stable under 950 °C and leads to the formation P-GDs in the Ar atmosphere.…”

Section: Resultsmentioning

confidence: 99%

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N, P-Codoped Graphene Dots Supported on N-Doped 3D Graphene as Metal-Free Catalysts for Oxygen Reduction

Tong

Cherif

Zhang

et al. 2021

ACS Appl. Mater. Interfaces

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Nitrogen and phosphorus-codoped graphene dots supported on nitrogen-doped three-dimensional graphene (N, P-GDs/N-3DG) have been synthesized by a facile freeze-annealing process. On the surface of the 3D interconnected porous structure, the N, P-GDs are uniformly dispersed. The as-prepared N, P-GDs/ N-3DG material served as a metal-free catalyst for oxygen reduction reaction (ORR) in an alkaline medium and evaluated by a rotating ring-disk electrode. The N, P-GDs/N-3DG catalyst exhibits excellent ORR activity, which is comparable to that of the commercial Pt/C catalyst. Furthermore, it exhibits a higher tolerance to methanol and better stability than the Pt/C. This enhanced electrochemical catalytic performance can be ascribed to the presence of abundant functional groups and edge defects. This study indicates that P−N bonded structures play a vital role as the active sites in ORR.

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Section: Resultsmentioning

confidence: 99%

“…At high temperatures, TPP is known to deoxygenate GO to lead to RGO and phosphine oxide, Ph 3 PO. 56 The Ph 3 PO is not stable under 950 °C and leads to the formation P-GDs in the Ar atmosphere. As the ammonia annealing was conducted at 950 °C, the phosphine can react with ammonia to form a phosphinimine, Ph 3 PNH.…”

Section: Resultsmentioning

confidence: 99%

N, P-Codoped Graphene Dots Supported on N-Doped 3D Graphene as Metal-Free Catalysts for Oxygen Reduction

Tong

Cherif

Zhang

et al. 2021

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

Enhanced room-temperature reduction of graphene oxide using Al as a supplement in the liquid phase HI

Joshi

Dey

Lahiri

2022

Ceramics International

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Divergent mechanisms for thermal reduction of graphene oxide and their highly different ion affinities

Manyam

Opaprakasit

et al. 2018

Diamond and Related Materials

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New approach for the reduction of graphene oxide with triphenylphosphine dihalide

Abstract: We developed a one-flask method for the thermal reduction of graphene oxide (GO) with triphenylphosphine dihalide (Ph3PX2) at 180 °C.

Cited by 5 publications

References 62 publications

N, P-Codoped Graphene Dots Supported on N-Doped 3D Graphene as Metal-Free Catalysts for Oxygen Reduction

N, P-Codoped Graphene Dots Supported on N-Doped 3D Graphene as Metal-Free Catalysts for Oxygen Reduction

Enhanced room-temperature reduction of graphene oxide using Al as a supplement in the liquid phase HI

Divergent mechanisms for thermal reduction of graphene oxide and their highly different ion affinities

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