Effect of N‐Doped Graphene for Properties of Pt/N‐Doped Graphene Catalyst

Siburian, Rikson; Sebayang, Kerista; Supeno, Minto; Marpaung, Harlem

doi:10.1002/slct.201601561

Cited by 25 publications

(17 citation statements)

References 32 publications

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“…Previous studies have clearly shown that doping of nitrogen can influent π–d hybridization in terms of electronic structures. [ 36 ] Figure S4 (Supporting Information) shows CV measurements of Pt‐N‐rGO, Ni‐N‐rGO, and PtNi‐N‐rGO. The PtNi‐N‐rGO represents much higher peak current.…”

Section: Resultsmentioning

confidence: 99%

A Nonenzymatic Hydrogen Peroxide Electrochemical Sensing and Application in Cancer Diagnosis

Peng

Pan

et al. 2021

Small Methods

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The diagnosis of malignant tumors is essential for informing clinical decisions regarding therapeutic options. Current imaging and pathological diagnostic methods do not provide quantitative molecular information that is important in tumor identification. Moreover, pathological tissue analysis is dependent on unevenly distributed pathological features. The tumor microenvironment has been documented to have hydrogen peroxide (H2O2). This study presents a biologically sensitive and efficient H2O2 electrochemical sensor based on PtNi nanoparticle‐doped N‐reduced graphene oxide (PtNi‐N‐rGO) with a low detection limit (2.8 × 10–9 m), a fast response time (<6 s) and desirable anti‐interference characteristics. Herein, H2O2 is used as molecular biomarker. The sensor successfully captures H2O2 from cancer cells. In addition, it efficiently detects tumor tissues, adjacent tissues, and normal tissues. This study demonstrates the H2O2 sensor potential to rapidly detect tumor tissues. This technique provides a complementary method for pathological tumor diagnosis that is independent of the traditional pathology labs.

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Section: Resultsmentioning

confidence: 99%

A Nonenzymatic Hydrogen Peroxide Electrochemical Sensing and Application in Cancer Diagnosis

Peng

Pan

et al. 2021

Small Methods

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“…40 Then, it was reduced tobe graphene nanosheets. 41,42 The 30 wt% Pt catalysts were deposited onto GNS using a platinum (Pt) precursor of [H 2 PtCl 6 .6H 2 O] (Alfa Aesar, A Johnson Matthey Company). Briefly, the ethanol solution of the precursor was mixed with the ethanol solution of GNS.…”

Section: Methodsmentioning

confidence: 99%

Graphene Nanosheets Effect to Improve CO-Tolerance of Pt/Graphene Nanosheets Catalyst

2018

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In this paper, we concern about CO tolerance of Platinum (Pt)/Graphene Nanosheets (GNS) catalysts dependence of pH. The aim of this research is to investigate relationship between CO tolerance and Pt particle size base on pH dependence and also supporting material effect to CO-tolerance. The research method is modified Hummers and impregnation method to synthesize GNS and Pt/GNS catalysts, respectively. The results show that electrocatalytic measurements of Pt/GNS catalyst prepared at pH = 1 has the highest CO tolerance (69.4 %) under 500 ppm CO level in the hydrogen oxidation reaction among pH = 6, 12.5 and Pt/CB commercial catalyst. It means pH dependence and GNS may be expected to enhance electrocatalytic activity (CO tolerance) of Pt. Furthermore, GNS is possible used as an anode catalyst of Polymer Electrolyte Fuel Cells (PEFCs).

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“…That is caused N atoms incorporate with carbon atoms. It is possible because N may donate its electrons to the π-graphene system 52 .…”

Section: Sem-edx Analysismentioning

confidence: 99%

Facile Method to Synthesize N-Graphene Nano Sheets

Siburian¹,

Dewiratih²,

Andiayani³

et al. 2018

Orient. J. Chem

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In this paper, we reported about the facile method to generate N-Graphene Nano Sheets (N-GNS) on room temperature. The purposes of this research are to synthesize and characterize N-GNS. This research used the modified Hummers's method to generate GNS and doping nitrogen to N-GNS used ammonia 10 M at T = 30 o C. The N-GNS was characterized by using XRD, FTIR and SEM-EDX. The XRD data show that N atoms was well be deposited on GNS to form N-GNS, it was indicated by the broad and weak peak was appear at 2θ = 26.3 o . This data is consistent with SEM-EDX, where the N atoms content on N-GNS is 2.72 %. FTIR data also defenitely confirm that there is interaction between C and N, indicating by the peak is appear at 1396 cm -1 . All of data show that the N is exist on GNS, it probes N-GNS may synthesized by facile method on room temperature.

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Effect of N‐Doped Graphene for Properties of Pt/N‐Doped Graphene Catalyst

Cited by 25 publications

References 32 publications

A Nonenzymatic Hydrogen Peroxide Electrochemical Sensing and Application in Cancer Diagnosis

A Nonenzymatic Hydrogen Peroxide Electrochemical Sensing and Application in Cancer Diagnosis

Graphene Nanosheets Effect to Improve CO-Tolerance of Pt/Graphene Nanosheets Catalyst

Facile Method to Synthesize N-Graphene Nano Sheets

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