Development of a Synergistic Activation Strategy for the Pilot-Scale Construction of Hierarchical Porous Graphitic Carbon for Energy Storage Applications.
basic_science · Level V
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- Record sourced from PubMed, PMID 32186848.
- Also identified by DOI 10.1021/acsnano.0c00620.
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Abstract
Pursuing scalable production of porous carbon with facile and environmentally friendly synthesis methodology is a global goal. Herein, a unique hierarchical porous graphitic carbon (HPGC) with outstanding textural characteristics is achieved by a special synergistic activation mechanism, in which the low-temperature molten state of polymorphisms can induce a high-rate liquid phase porous activation. HPGC with high specific surface area (SSA, ∼2571 m<sup>2</sup> g<sup>-1</sup>) and large pore volume (PV, ∼2.21 cm<sup>3</sup> g<sup>-1</sup>) can be achieved, which also possesses the capability to tune textural characteristics (<i>i</i>.<i>e</i>., SSA, PV, pore size distribution, <i>etc</i>.) within a wide range. Furthermore, the pilot-scale production of HPGC is accomplished, which shows similar textural characteristics to the lab-scale HPGC. Due to the unique structure of HPGC and the capability of the textural control, it can be applicable in a variety of energy storage, energy conversion, and catalysis applications. The applications of pilot-scale HPGC products in supercapacitors and lithium sulfur batteries are highlighted in this work. Furthermore, the synergistic activation strategy can be promoted to other alkali-based carbon activation routes, which can open up new possibilities for the activated carbon production and lead to more widespread industrialized applications of HPGC.