N, S and Transition-Metal Co-Doped Graphene Nanocomposites as High-Performance Catalyst for Glucose Oxidation in a Direct Glucose Alkaline Fuel Cell

Dai, Yexin; Ding, Jie; Li, Jingyu; Li, Yang; Zong, Yanping; Zhang, Pingping; Wang, Zhiyun; Liu, Xianhua

doi:10.3390/nano11010202

Cited by 8 publications

(6 citation statements)

References 56 publications

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“…The Nyquist plots are obtained by fitting the equivalent circuit, as displayed in the inset of Figure d. The charge transfer resistance ( R CT ) can be characterized by the diameter of the semicircle . The R CT of the Pt NF electrode (3.45 Ω) is lower than that of the 10% Pt/C electrode (9.57 Ω), demonstrating that the Pt NF catalyst-decorated CP has good electrical conductivity, which can be used as an excellent electrode material for electrochemical application.…”

Section: Resultsmentioning

confidence: 99%

Pt Nanoflowers as a Highly Effective Electrocatalyst for Glucose Oxidation in Abiotic Glucose Fuel Cells

Dong

et al. 2023

ACS Appl. Mater. Interfaces

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Self-powered implantable medical devices (IMDs) without any external power supply are desired in a growing number of situations. Glucose fuel cells (GFCs) that convert the chemical energy of intrinsic glucose and oxygen into electricity are promising technology to achieve this goal. Herein, a Pt nanoflower (Pt NF) catalyst is prepared by using a facile one-step reduction method and employed as the anode catalyst for abiotic GFCs in a neutral environment at a physiological concentration of glucose. The Pt NF catalyst exhibits high electrocatalytic activity, catalytic selectivity, and good durability in the electrochemical analysis. The Pt NF’s rapid linear current response to the variation of glucose concentration within a wide range also makes it a promising material for glucose sensors. A GFC with two chambers fabricated with a Pt NF catalyst-decorated carbon paper (Pt NFs/CP) anode and a Pt sheet cathode generates a maximum power density (P max) of 13.8 μW cm–2, an open-circuit voltage (V OC) of 819.5 mV, and a short-circuit current density (J SC) of 0.12 mA cm–2, which makes it a viable candidate for application in self-powered devices.

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Section: Resultsmentioning

confidence: 99%

Pt Nanoflowers as a Highly Effective Electrocatalyst for Glucose Oxidation in Abiotic Glucose Fuel Cells

Dong

et al. 2023

ACS Appl. Mater. Interfaces

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“…hydrogen gas and methanol, glucose is easily available, low-cost, and non-toxic [14][15][16][17][18][19]. In addition, renewable biomass resources, including starch and cellulose, can be easily converted into glucose molecules at little energy cost [4,17,20].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, there are no explosion hazards or storing problems associated with glucose, while hydrogen and methanol are very flammable and can cause fires and explosions when being handled improperly. These advantages make GFCs a promising source for sustainable energy and has attracted great attention from global researchers and institutions [14,18,19,21,22].…”

Section: Introductionmentioning

confidence: 99%

“…After complete oxidation, glucose can release 2.87 MJ mol −1 energy [2]. Compared with other conventional substrates for fuel cells, such as hydrogen gas and methanol, glucose is easily available, low-cost, and non-toxic [14][15][16][17][18][19]. In addition, renewable biomass resources, including starch and cellulose, can be easily converted into glucose molecules at little energy cost [4,17,20].…”

Section: Introductionmentioning

confidence: 99%

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Glucose Fuel Cells and Membranes: A Brief Overview and Literature Analysis

Liu

2022

Sustainability

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Glucose is a ubiquitous source of energy for nearly all living things, and glucose fuel cells (GFCs) are regarded as a sustainable power source because glucose is renewable, easily available, cheap, abundant, non-toxic and easy-to-store. Numerous efforts have been devoted to developing and improving GFC performance; however, there is still no commercially viable devices on the market. Membranes play an essential role in GFCs for the establishment of a suitable local microenvironment, selective ion conducting and prevention of substrate crossover. However, our knowledge on them is still limited, especially on how to achieve comparable efficacy with that of a biological system. This review article provides the first brief overview on these aspects, particularly keeping in sight the research trends, current challenges, and the future prospects. We aim to bring together literature analysis and technological discussion on GFCs and membranes by using bibliometrics, and provide new ideas for researchers in this field to overcome challenges on developing high-performance GFCs.

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“…Hangil Lee asserted the enhanced catalytic activity of rGO by the addition of various transiton metals (Cr, Fe, Co) [12]. Likewise, Yexin Dai et al fabricated transitional metals (Ni, Co, Fe) reduced graphene oxide nanocomposites doped with nitrogen (N) and sulfur (S) for possible applications in fuel cells [13].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Integration of Functionalized N-rGO-Ni/Ag and N-rGO-Ni/Co Nanocomposites as Synergistic Oxygen Electrocatalysts in Fuel Cells

2022

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Fabrication of composites by developing simple techniques can be an efficient way to modify the desire properties of the materials. This paper presents a detailed study on synthesis of low cost and efficient nitrogen doped reduced graphene oxide nickle-silver (N-rGO-Ni/Ag) and nickel-cobalt (N-rGO-Ni/Co) nanocomposites as electrocatalysts in fuel cell using one-pot blended reflux condensation route. An admirable correlation in the structures and properties of the synthesized nanocomposites was observed. The Oxygen Reduction Reaction (ORR) values for N-rGO-Ni/Ag and N-rGO-Ni/Co calculated from the onset potential, using Linear Sweep Voltammetry (LSV), were found to be 1.096 and 1.146. While the half wave potential were determined to be 1.046 and 1.106, respectively, N-rGO-Ni/Ag and N-rGO-Ni/Co. The Tafel and bi-functional (ORR/OER) values were calculated as 76 and 35 mV/decade and 1.23 and 1.12 V, respectively, for N-rGO-Ni/Ag and N-rGO-Ni/Co. The lower onset and half wave potential, low charge transfer resistance (Rct = 1.20 Ω/cm2) and internal solution resistance (Rs = 8.84 × 10−1 Ω/cm2), lower Tafel values (35 mV), satisfactory LSV measurements and mass activity (24.5 at 1.056 V for ORR and 54.9 at 1.056 for OER) demonstrate the remarkable electrocatalytic activity of N-rGO-Ni/Co for both ORR and OER. The chronamperometric stability for synthesized nanocomposites was found satisfactory up to 10 h.

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N, S and Transition-Metal Co-Doped Graphene Nanocomposites as High-Performance Catalyst for Glucose Oxidation in a Direct Glucose Alkaline Fuel Cell

Cited by 8 publications

References 56 publications

Pt Nanoflowers as a Highly Effective Electrocatalyst for Glucose Oxidation in Abiotic Glucose Fuel Cells

Pt Nanoflowers as a Highly Effective Electrocatalyst for Glucose Oxidation in Abiotic Glucose Fuel Cells

Glucose Fuel Cells and Membranes: A Brief Overview and Literature Analysis

Fabrication and Integration of Functionalized N-rGO-Ni/Ag and N-rGO-Ni/Co Nanocomposites as Synergistic Oxygen Electrocatalysts in Fuel Cells

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