Hierarchically Porous Graphitic Carbon with Simultaneously High Surface Area and Colossal Pore Volume Engineered via Ice Templating

Journal Article · Wed Sep 13 00:00:00 EDT 2017 · ACS Nano

DOI:https://doi.org/10.1021/acsnano.7b05085· OSTI ID:1439699

Estevez, Luis  ^[1]; Prabhakaran, Venkateshkumar  ^[1]; Garcia, Adam L. ^[1]; Shin, Yongsoon ^[1]; Tao, Jinhui ^[1]; Schwarz, Ashleigh M. ^[1]; Darsell, Jens ^[1]; Bhattacharya, Priyanka ^[2]; Shutthanandan, Vaithiyalingam ^[1]; Zhang, Ji-Guang  ^[1]

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1. Pacific Northwest National Laboratory, 902 Battelle Boulevard, P.O. Box 999, Richland, Washington 99352, United States
2. Pacific Northwest National Laboratory, 902 Battelle Boulevard, P.O. Box 999, Richland, Washington 99352, United States; Energy Technologies and Materials Division, University of Dayton Research Institute, 300 College Park Avenue, Dayton, Ohio 45469, United States

Developing hierarchical porous carbon (HPC) materials with competing textural characteristics such as surface area and pore volume in one material is difficult to accomplish—particulalry for an atomically ordered (graphitic) carbon. Herein we describe a synthesis strategy to engineer tunable hierarchically porous carbon (HPC) materials across micro- meso- and macroporous length scales, allowing the fabrication of a graphitic HPC with both very high surface area (> 2500 m2/g) and pore volume (>10 cm3/g), the combination of which has not been seen previously. The mesopore volume alone for these materials is up to 7.91 cm3/g, the highest ever reported. The unique material was explored for use as a supercapaictor electrode and for oil adsorption; two applications that require textural properties that are typicaly exclusive to one another. This design scheme for HPCs can be utilized in broad applications, including electrochemical systems such as batteries and supercapacitors, sorbents, and catalyst supports.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1439699
• Report Number(s): PNNL-SA-126443
• Journal Information: ACS Nano, Vol. 11, Issue 11; ISSN 1936-0851
• Publisher: American Chemical Society (ACS)
• Country of Publication: United States
• Language: English