Green synthesis of N, P-co doped porous reduced graphene oxide as an active metal-free electrocatalyst toward oxygen reduction reaction

Cheng, Chao; Li, Yang; Maouche, Chanez; Li, Bing; Zhou, Yazhou; Wang, Shuang; Cheng, Xiaonong; Yang, Juan

doi:10.1016/j.jelechem.2021.115058

Cited by 26 publications

(11 citation statements)

References 62 publications

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“…It is not a surprise that another of the most studied cocoped graphene systems also contains nitrogen, but in this case it is chaperoned by a pnictogen: phosphorus. − In 2014, Zheng et al reported the synthesis of P and N codoped graphene and its use as nonmetal catalyst for the hydrogen evolution reaction. The performance was much better than those corresponding to monodoped graphene and comparable to some commercial catalysts.…”

Section: Codoped or Dual-doped Graphenementioning

confidence: 99%

“…These are three examples of how P and N codoped graphene can be synthesized. Since there is not a standard method to obtain it, I refer the readers to the references included, as most of them report a unique method. − For example, Ananthanarayanan et al used adenosine triphosphate and Guo et al used hypophosphorous acid as a P source to dope graphene oxide.…”

Section: Codoped or Dual-doped Graphenementioning

confidence: 99%

“…For this reason the synthetic conditions were tuned to increase the number of P–N bonds, in line with our previous studies. , P and N codoped graphene can be synthesized using green chemistry. Cheng et al used low-cost inorganic fertilizers and graphene oxide as precursors to obtain the said nanomaterial. The material presented super electrocatalytic activity and methanol tolerance.…”

Section: Codoped or Dual-doped Graphenementioning

confidence: 99%

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Heteroatom Codoped Graphene: The Importance of Nitrogen

Denis

2022

ACS Omega

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Although graphene has exceptional properties, they are not enough to solve the extensive list of pressing world problems. The substitutional doping of graphene using heteroatoms is one of the preferred methods to adjust the physicochemical properties of graphene. Much effort has been made to dope graphene using a single dopant. However, in recent years, substantial efforts have been made to dope graphene using two or more dopants. This review summarizes all the hard work done to synthesize, characterize, and develop new technologies using codoped, tridoped, and quaternary doped graphene. First, I discuss a simple question that has a complicated answer: When can an atom be considered a dopant? Then, I briefly discuss the single atom doped graphene as a starting point for this review's primary objective: codoped or dual-doped graphene. I extend the discussion to include tridoped and quaternary doped graphene. I review most of the systems that have been synthesized or studied theoretically and the areas in which they have been used to develop new technologies. Finally, I discuss the challenges and prospects that will shape the future of this fascinating field. It will be shown that most of the graphene systems that have been reported involve the use of nitrogen, and much effort is needed to develop codoped graphene systems that do not rely on the stabilizing effects of nitrogen. I expect that this review will contribute to introducing more researchers to this fascinating field and enlarge the list of codoped graphene systems that have been synthesized.

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Section: Codoped or Dual-doped Graphenementioning

confidence: 99%

Section: Codoped or Dual-doped Graphenementioning

confidence: 99%

Section: Codoped or Dual-doped Graphenementioning

confidence: 99%

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Heteroatom Codoped Graphene: The Importance of Nitrogen

Denis

2022

ACS Omega

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“…On the other hand, N, P co-doping has been shown to incorporate more disruption in the structure of the graphene network because of the larger size of P, as compared to that of the C atom. Cheng et al 113 reported that N and P co-doping generated a large number of active sites, making it an efficient catalyst due to the synergetic effect of both dopants. Therefore, co-doping has been found to improve the electrical, optical, structural and conducting properties of graphene and its derivatives, 73 which could improve the photocatalytic activity of the graphene-based nanomaterials.…”

Section: Doping Engineering In Graphene Nanomaterials For Photocataly...mentioning

confidence: 99%

Design and engineering of graphene nanostructures as independent solar-driven photocatalysts for emerging applications in the field of energy and environment

Sharma

Yadav

Chen

et al. 2022

Mol. Syst. Des. Eng.

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“…Co-doping of GO with heteroatoms can improve its properties for application as adsorbent and photocatalyst. Co-doping of GO with boron, nitrogen, sulphur and phosphorous has been reported [ 11 , 12 , 13 ]. These co-doped materials have been extensively used in electrocatalysis due to asymmetric charge density induced by the difference between the electronegativity of heteroatoms and carbon [ 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Nanoflowers of MgFe2O4, Bentonite and B-,P- Co-Doped Graphene Oxide as Adsorbent and Photocatalyst: Optimization of Parameters by Box–Behnken Methodology

Ubhi

Kaur

Singh

et al. 2022

IJMS

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In the present study, nanocomposites having hierarchical nanoflowers (HNFs) -like morphology were synthesized by ultra-sonication approach. HNFs were ternary composite of MgFe2O4 and bentonite with boron-, phosphorous- co-doped graphene oxide (BPGO). The HNFs were fully characterized using different analytical tools viz. X-ray photoelectron spectroscopy, scanning electron microscopy, energy dispersion spectroscopy, transmission electron microscopy, X-ray diffraction, vibrating sample magnetometry and Mössbauer analysis. Transmission electron micrographs showed that chiffon-like BPGO nanosheets were wrapped on the MgFe2O4-bentonite surface, resulting in a porous flower-like morphology. The red-shift in XPS binding energies of HNFs as compared to MgFe2O4-bentoniteand BPGO revealed the presence of strong interactions between the two materials. Box–Behnken statistical methodology was employed to optimize adsorptive and photocatalytic parameters using Pb(II) and malathion as model pollutants, respectively. HNFs exhibited excellent adsorption ability for Pb(II) ions, with the Langmuir adsorption capacity of 654 mg g−1 at optimized pH 6.0 and 96% photocatalytic degradation of malathion at pH 9.0 as compared to MgFe2O4-bentonite and BPGO. Results obtained in this study clearly indicate that HNFs are promising nanocomposite for the removal of inorganic and organic contaminants from the aqueous solutions.

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Green synthesis of N, P-co doped porous reduced graphene oxide as an active metal-free electrocatalyst toward oxygen reduction reaction

Cited by 26 publications

References 62 publications

Heteroatom Codoped Graphene: The Importance of Nitrogen

Heteroatom Codoped Graphene: The Importance of Nitrogen

Design and engineering of graphene nanostructures as independent solar-driven photocatalysts for emerging applications in the field of energy and environment

Hierarchical Nanoflowers of MgFe2O4, Bentonite and B-,P- Co-Doped Graphene Oxide as Adsorbent and Photocatalyst: Optimization of Parameters by Box–Behnken Methodology

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