Printing nanostructured carbon for energy storage and conversion applications

Lawes, Stephen; Riese, Adam; Sun, Qian; Cheng, Niancai; Sun, Xueliang

doi:10.1016/j.carbon.2015.04.008

Cited by 96 publications

(65 citation statements)

References 227 publications

(215 reference statements)

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“…The areal capacitance (C a )a nd volumetric capacitance (C v )o fatwo-electrode cell was calculated by using Equations (9) and (10): The areal capacitance (C a )a nd volumetric capacitance (C v )o fatwo-electrode cell was calculated by using Equations (9) and (10):…”

Section: Fabrication and Performance Evaluation Of Graphene Devicementioning

confidence: 99%

Design and Fabrication of Printed Paper‐Based Hybrid Micro‐Supercapacitor by using Graphene and Redox‐Active Electrolyte

et al. 2018

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Inspired by future needs of flexible, simple, and low-cost energy storage devices, smart graphene-based micro-supercapacitors on conventional Xerox paper substrates were developed. The use of redox-active species (iodine redox couple) was explored to further improve the paper device's performance. The device based on printed graphene paper itself already had a remarkable maximum volumetric capacitance of 29.6 mF cm (volume of whole device) at 6.5 mA cm . The performance of the hybrid electrode with redox-active potassium iodide at the graphene surface was tested. Remarkably, the hybrid device showed improved volumetric capacitance of 130 mF cm . The maximum energy density for a graphene+KI device in H SO electrolyte was estimated to be 0.026 mWh cm . Thus, this work offers a new simple, and lightweight micro-supercapacitor based on low-cost printed graphene paper, which will have great applications in portable electronics.

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Section: Fabrication and Performance Evaluation Of Graphene Devicementioning

confidence: 99%

Design and Fabrication of Printed Paper‐Based Hybrid Micro‐Supercapacitor by using Graphene and Redox‐Active Electrolyte

et al. 2018

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“…In the development of supported catalysts, the carriers or supports play a critical role, as they are generally required to immobilize the active species, improve the structural stability, and enhance the charge‐transport capabilities of composite catalysts . Among the various materials used as catalyst carriers, carbon materials have attracted significant attention for scientific and industrial applications owing to their chemical inertness (resistance to both acidic and basic environments), highly developed porosities, large surface areas, and flexible surface chemistry . To date, many carbon‐based heterogeneous nanocatalysts with various morphologies and structures (especially porous hollow nanostructures) containing different metal or noble‐metal nanocrystals have been explored for a wide variety of catalysis and electrocatalysis applications .…”

Section: Introductionmentioning

confidence: 99%

“…Among the various materials used as catalyst carriers, carbon materials have attracted significant attention for scientific and industrial applications owing to their chemical inertness (resistance to both acidic and basic environments), highly developed porosities, large surface areas, and flexible surface chemistry . To date, many carbon‐based heterogeneous nanocatalysts with various morphologies and structures (especially porous hollow nanostructures) containing different metal or noble‐metal nanocrystals have been explored for a wide variety of catalysis and electrocatalysis applications . Among them, Pd nanocrystals not only exhibit a versatile applicability and excellent catalytic activity towards various heterogeneous catalysis reactions but also possess a rational balance between cost‐effectiveness and activity .…”

Section: Introductionmentioning

confidence: 99%

“…To pursue high catalytic activity and stability, both the structure (pore, surface, and interface) of the carriers and the parameters (size, crystallization degree, crystal face, surface modification, etc.) of the nanocrystals have to be designed rationally . Firstly, to utilize costly noble metals efficiently, it is beneficial to optimize their sizes and load them in the supports in a well‐dispersed form.…”

Section: Introductionmentioning

confidence: 99%

“…Hierarchical pore systems offer improved accessibility of the active species to the pores compared with systems with uniform pores , , . To date, although considerable progress has been made in the development of carbon‐based heterogeneous nanocatalysts, great effort is still needed to regulate their structural parameters to meet the above‐mentioned points and, thus, achieve high catalytic performance …”

Section: Introductionmentioning

confidence: 99%

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Smart Design of Small Pd Nanoparticles Confined in Hollow Carbon Nanospheres with Large Center‐Radial Mesopores

Zhao

et al. 2017

Eur J Inorg Chem

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Although considerable progress has been made with carbon‐based heterogeneous nanocatalysts, great effort is still needed to regulate their structural parameters to further improve their catalytic activities and stabilities. Herein, we have successfully designed and synthesized new composite nanocatalysts composed of porous hollow carbon nanospheres (PHCNs) containing many small Pd nanoparticles (NPs) on their inner surfaces (PHCNs@Pd NPs). Notably, the PHCNs have disordered micropores and large center‐radial mesopores in the shell and craterlike inner surface, and a high density of small Pd NPs are partially confined on the inner surfaces of the PHCNs. Dendrimer‐like mesoporous silica nanospheres (DMSNs) as hard templates play a critical role in the formation of these unique structures. The resulting PHCNs@Pd NP catalyst exhibits high catalytic activity and selectivity as well as good recyclability in the catalytic oxidation of benzyl alcohol to benzaldehyde, and this catalytic performance is attributed to the unique structure of the support coupled with ultradispersed Pd NPs. Moreover, this synthesis strategy may provide some inspiration for the synthesis of advanced composites with complicated nanostructures for various applications.

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