<i>A Conversation with</i> Prof. Mildred Dresselhaus: A Career in Carbon Nanomaterials

Weiss, Paul S.

doi:10.1021/nn901147q

Cited by 11 publications

(10 citation statements)

References 16 publications

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“…While the properties of graphene sheets have been extensively studied, the area of graphene edge properties is barely touched. 8,9 This is somehow surprising as the edges dictate the surface properties of graphene which are crucial for their catalytic and electrochemical properties.…”

Section: Introductionmentioning

confidence: 99%

“…Study of the physical, chemical and materials properties of graphene edges is a new frontier in graphene research. 8,9 It is well known (and intuitively accessible to any chemist as graphene resembles an extra large polyaromatic molecule) that graphene edges can exhibit zig-zag or armchair orientations. It has been demonstrated that different edge structures have a profound influence on the electronic properties of graphene nanoribbons.…”

Section: Introductionmentioning

confidence: 99%

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Electrochemistry of folded graphene edges

2011

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There is enormous interest in the investigation of electron transfer rates at the edges of graphene due to possible energy storage and sensing applications. While electrochemistry at the edges and the basal plane of graphene has been studied in the past, the new frontier is the electrochemistry of folded graphene edges. Here we describe the electrochemistry of folded graphene edges and compare it to that of open graphene edges. The materials were characterized in detail by high-resolution transmission electron microscopy, Raman spectroscopy, high-resolution X-ray photoelectron spectroscopy, electrochemical impedance spectroscopy and cyclic voltammetry. We found that the heterogeneous electron transfer rate is significantly lower on folded graphene edges compared to open edge sites for ferro/ferricyanide, and that electrochemical properties of open edges offer lower potential detection of biomarkers than the folded ones. It is apparent, therefore, that for sensing and biosensing applications the folded edges are less active than open edges, which should then be preferred for such applications. As folded edges are the product of thermal treatment of multilayer graphene, such thermal procedures should be avoided when fabricating graphene for electrochemical applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrochemistry of folded graphene edges

2011

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“…We join the world of science and engineering in mourning the loss last month of Prof. Millie Dresselhaus, an international treasure, a scientific leader, and a mentor to many of us. Prof. Dresselhaus had an inspiring life and career; she broadcast her enthusiasm for science and was a role model and champion for scientists around the world with her creativity, insight, intelligence, and persistence. She was an early supporter of and advisor to us at ACS Nano , offering advice on how we could impact the world, and actively joining that effort.…”

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confidence: 99%

Prof. Millie Dresselhaus (1930–2017), Carbon Nanomaterials Pioneer

Li¹,

Buriak²,

Gogotsi³

et al. 2017

ACS Nano

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“…Carbon NSs has been established as a landmark material for FE [4,5,[14][15][16][17]. In-spite of being one of the well-studied systems, carbon NSs based FE devices are not available commercially [4].…”

Section: Introductionmentioning

confidence: 99%

Three-fold Constructive Perturbation for Significant Enhancement in Field Emission from Nickel Oxide Nano-Thorn

Mishra,

Yogi,

Saxena

et al. 2017

Preprint

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A power efficient and stable field emission (FE) has been reported here from Nickel Oxide nanostructures.Modification in device geometry and surface micro-(nano-) structure has been found helpful in addressing the bottlenecks in achieving an efficient FE . In terms of threshold and turn on fields, three orders of magnitude better electron FE has been observed in the nickel oxide nanopetals (NiO-NPs) fabricated using simple hydrothermal technique. Uniform and vertically aligned NiO-NPs structures, grown on very flat conducting surface (FTO coated glass), show sharp needles like structures on the top edges of the flakes. These ultrafine structures play the main role in field emission to start at such a low turn on fields. The FE data (J-E plot) has been fitted with Fowler-Nordheim (FN) equation to estimate threshold field value and field enhancement factor which are found to be 3 V/mm and ∼ 5 × 10 6 respectively.

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A Conversation with Prof. Mildred Dresselhaus: A Career in Carbon Nanomaterials

Abstract: at a meeting for the Beckman Scholars where we both spoke and served on a discussion panel.To hear Prof. Dresselhaus' advice to young scientists, please visit us at the audio page of http://www.acsnano.org/.

Cited by 11 publications

References 16 publications

Electrochemistry of folded graphene edges

Electrochemistry of folded graphene edges

Prof. Millie Dresselhaus (1930–2017), Carbon Nanomaterials Pioneer

Three-fold Constructive Perturbation for Significant Enhancement in Field Emission from Nickel Oxide Nano-Thorn

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