Graphene growth on nanodiamond as a support for a Pt electrocatalyst in methanol electro-oxidation

Zang, Jianbing; Wang, Yanhui; Bian, Linyan; Zhang, Jinhui; Meng, Fanwei; Zhao, Yuanchun; Lu, Rui; Qu, Xuanhui; Ren, Shan

doi:10.1016/j.carbon.2012.02.089

Cited by 47 publications

(20 citation statements)

References 34 publications

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“…The dispersion of metal nanoparticles on graphene sheets potentially provides a new way to develop catalytic materials [12] used as electrocatalysts for oxygen reduction [13,14] and methanol oxidation [15,16]. Among noble nanoparticles, gold nanoparticles (GNPs) are one of the most studied nanomaterials, due to their remarkable properties [17].…”

Section: Introductionmentioning

confidence: 99%

Direct Electrochemistry of Hemoglobin at a Graphene Gold Nanoparticle Composite Film for Nitric Oxide Biosensing

Zhao

2013

Sensors

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A simple two-step method was employed for preparing nano-sized gold nanoparticles-graphene composite to construct a GNPs-GR-SDS modified electrode. Hemoglobin (Hb) was successfully immobilized on the surface of a basal plane graphite (BPG) electrode through a simple dropping technique. Direct electrochemistry and electrocatalysis of the hemoglobin-modified electrode was investigated. The as-prepared composites showed an obvious promotion of the direct electro-transfer between hemoglobin and the electrode. A couple of well-defined and quasi-reversible Hb CV peaks can be observed in a phosphate buffer solution (pH 7.0). The separation of anodic and cathodic peak potentials is 81 mV, indicating a fast electron transfer reaction. The experimental results also clarified that the immobilized Hb retained its biological activity for the catalysis toward NO. The biosensor showed high sensitivity and fast response upon the addition of NO, under the conditions of pH 7.0, potential -0.82 V. The time to reach the stable-state current was less than 3 s, and the linear response range of NO was 0.72-7.92 μM, with a correlation coefficient of 0.9991.

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Section: Introductionmentioning

confidence: 99%

Direct Electrochemistry of Hemoglobin at a Graphene Gold Nanoparticle Composite Film for Nitric Oxide Biosensing

Zhao

2013

Sensors

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“…After 1000 voltage cycles, the CV curve of ND/N-G showed no significant changes, indicating a high antioxidation of the ND/N-G in alkaline solution. This was attributed to the core-shell structure of ND/N-G [19,20,23]. As shown in Fig.…”

Section: Electrocatalytic Activity For Orr and Stability Of Nd/n-gmentioning

confidence: 92%

“…The special graphene nanosheets were made of a 3D material via thermal conversion of sp3 structure carbon atoms of the ND surface, in which no metals were used as the catalysts. The retained diamond core with high morphological stability under oxidizing conditions provides a stiff support for the graphene shell [19,20]. Due to the core-shell structure of ND/N-G, the stacking could be weakened.…”

Section: Introductionmentioning

confidence: 99%

Nanodiamond/nitrogen-doped graphene (core/shell) as an effective and stable metal-free electrocatalyst for oxygen reduction reaction

Zang

Jia

et al. 2015

Electrochimica Acta

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“…Pt [108][109][110][111][112][113][114], Ni [115,116], Ti [117], Pd [118], Pt/Ni [119], Pt/Ru [120][121][122][123], Sn/Pb [124],…”

Section: Diamond Particlesmentioning

confidence: 99%

Diamond electrochemistry at the nanoscale: A review

Yang

Foord

Jiang

2016

Carbon

205

110

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Diamond electrochemistry using planar macroscopic diamond films has been widely investigated. Due to the non-uniform doping in diamond, boundary effects, and the varied ratios of graphite to diamond, such systems only provide averaged electrochemical signals over the full electrode. To clarify electrical and electrochemical properties of diamond at the nanoscale, the use of diamond nanostructures (e.g., nanotextures, nanowires, networks, nanoelectrodes, etc.) and particles (e.g., undoped nanoparticles, boron-doped particles), is highly important. In this paper, recent progress and achievements concerning diamond nanoelectrochemistry are considered. After a brief introduction of synthetic strategies to form diamond nanostructures and particles, their electrochemical properties in the presence and absence of redox probes are shown, followed by their use in electroanalysis (e.g., electrochemical, biochemical sensing, etc), electrochemical energy storage (e.g., electrochemical capacitors, batteries, etc.), electrocatalysis, and related applications. Topical problems and the future of diamond nanoelectrochemistry are discussed.

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Graphene growth on nanodiamond as a support for a Pt electrocatalyst in methanol electro-oxidation

Cited by 47 publications

References 34 publications

Direct Electrochemistry of Hemoglobin at a Graphene Gold Nanoparticle Composite Film for Nitric Oxide Biosensing

Direct Electrochemistry of Hemoglobin at a Graphene Gold Nanoparticle Composite Film for Nitric Oxide Biosensing

Nanodiamond/nitrogen-doped graphene (core/shell) as an effective and stable metal-free electrocatalyst for oxygen reduction reaction

Diamond electrochemistry at the nanoscale: A review

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