Porous carbon is the commonly used electrode material for supercapacitor, and its electrochemical performance is affected by the factors such as specific surface area (SSA), pore structure, heteroatomic content, and resistivity. In this paper, bean dregs-based porous carbon (BDPC) was synthesized with bean dregs as the carbon and nitrogen sources and magnesium citrate as template.The electrochemical properties of BDPC were investigated in 6 M KOH electrolyte. It is found that BDPC presents a well-developed mesoporous structure and BDPC-20 owns the highest SSA of 1637 m 2 /g. The nitrogen content decreases significantly with the heating rate, debilitating the hydrophilicity of BDPC. High heating rate can increase the relative content of graphitic-N and the degree of graphitization and consequently reduces the resistivity of BDPC enormously. The BDPC-20 shows the lowest resistivity of 97.2 μΩÁm. The cyclic voltammetry curves of BDPC electrodes exhibit the quasi-rectangular shape, demonstrating a typical electrical double-layer capacitor nature of energy storage. According to the galvanostatic charge-discharge measurement, BDPC-10 possesses the largest specific capacitance of 184.0 F/g.
Recent work in NIME has questioned the political and social implications of work in this field, and has called for direct action on problems in the areas of diversity, representation and political engagement. Though there is motivation to address these problems, there is an open question of how to meaningfully do so. This paper proposes that NIME's historical record is the best tool for understanding our own output but this record is incomplete, and makes the case for collective action to improve how we document our work. I begin by contrasting NIME's output with its discourse, and explore the nature of this discourse through NIME history and examine our inherited epistemological complexity. I assert that, if left unexamined, this complexity can undermine our community values of diversity and inclusion. I argue that meaningfully addressing current problems demands critical reflection on our work, and explore how NIME's historical record is currently used as a means of doing so. I then review what NIME's historical record contains (and what it does not), and evaluate its fitness for use as a tool of inquiry.Finally I make the case for collective action to establish better documentation practices, and suggest features that may be helpful for the process as well as the result.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.