Supporting Information: Metal Cation Pre-Intercalated Ti3C2Tx MXene as Ultra-High Areal Capacitance Electrodes for Aqueous Supercapacitors
Evidence and attribution¶
Authority of statements
Prose sections below (Summary, Methods, Findings, etc.) are curated summaries of the publication identified by doi, title, and pdf_path in the front matter above. They are not new primary claims by this wiki.
For definitive numerical values, reaction schemes, and interpretations, use the peer-reviewed article (and optional records under normalized/papers/ when present)—not this page alone.
Summary¶
This page tracks the Supporting Information PDF (papers/Prenger_ACS_AEM_2022_SI.pdf) for the ACS Applied Energy Materials study of cation-preintercalated multilayer Ti\(_3\)C\(_2\)T\(_x\) MXene electrodes for aqueous supercapacitors (shared DOI 10.1021/acsaem.2c00653; primary article: 2022kaitlyn-prenger-acs-metal-cation). SI corpora in electrochemistry typically host extended datasets that would overwhelm the main PDF: here, the supplemental file is the canonical place for energy-dispersive spectroscopy stoichiometry tables summarizing intercalant content before and after prolonged galvanostatic cycling (the local SI excerpt highlights 10k cycle protocols in places), additional cyclic voltammetry sweeps across scan rates, and charge–discharge voltage profiles for thick, practically loaded electrodes tested in 1 M sulfuric acid. The wiki treats this slug as evidence-grounded metadata about what the SI file contains and how it supports headline areal capacitance and rate claims, while reserving interpretive synthesis for the peer-reviewed article page.
Methods¶
Methodologically, the SI does not introduce a separate simulation stack; instead it documents supplemental experiments aligned with the main text. EDS tables provide elemental ratios that help verify intercalation stoichiometries and track degradation or surface chemistry shifts after cycling. Cyclic voltammetry panels expand the scan-rate coverage shown in the main paper, supporting rate capability narratives for Na⁺, K⁺, and Mg²⁺ variants. Galvanostatic traces report voltage vs capacity behavior for high areal loading electrodes, complementing abstract-level F/cm² claims with raw electrochemical curves. Readers should use the Methods sections of 2022kaitlyn-prenger-acs-metal-cation for cell construction, mass loadings, and cycling parameters; this page exists because the manifest registers the SI PDF distinctly from the article PDF.
Findings¶
The SI’s scientific role is supportive: it strengthens reproducibility and auditability for the manuscript’s performance and stability assertions by exposing the underlying electrochemical curves and compositional checks. It does not replace the narrative Findings section of the primary publication, where K⁺-intercalated electrodes are highlighted for standout areal capacitance and rate behavior relative to delaminated MXene benchmarks. For MAS-oriented retrieval, linking SI and article slugs clarifies which file contains tabular EDS and long-cycling figures versus main-text discussion. When curating electrochemical benchmarks, prefer extracting numeric capacitance/rate pairs from 2022kaitlyn-prenger-acs-metal-cation and treat this SI page as supporting evidence for composition/cycling stability claims rather than as the primary narrative source. Figure legends and axis labels in the SI should be cross-checked against the main PDF because supporting-information layout sometimes differs in font size and panel ordering from the article galleys.
Limitations¶
SI PDF alone omits narrative discussion; always read alongside the full article PDF for integrated conclusions.
Relevance to group¶
Archived supplemental data for a collaborative MXene electrochemistry publication with van Duin co-authorship.
Citations and evidence anchors¶
Primary article DOI (shared SI): https://doi.org/10.1021/acsaem.2c00653