TCBQ (Tetrachloro-1,4-benzoquinone, >99.5%) Powder as Organic Cathode for Aqueous Zn-Ion Battery, 50-200 g/bottle, CAZIBOCTCBQ
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TCBQ (Tetrachloro-1,4-benzoquinone, commonly known as chloranil) powder is a high-performance organic small-molecule cathode material for aqueous zinc-ion batteries (AZIBs). Unlike traditional transition metal oxide cathodes (such as manganese or vanadium oxides), TCBQ relies on fast, sustainable, and reversible organic redox chemistry, making it a promising candidate for eco-friendly, high-rate energy storage.
The key electrochemical and redox chemistry features of TCBQ as organic cathode in aqueous zinc-ion battery are: (1) Reversible Carbonyl Redox Reaction: The electrochemical activity of TCBQ is governed by the reversible conversion of its carbonyl groups (C=O) to enolate groups (C-O}-). During discharge, the quinone rings accept electrons and bind incoming cations. (2) Cation and Proton Co-Insertion: Depending on the specific pH and electrolyte formulation, TCBQ cathodes typically operate via the reversible storage of divalent zinc ions (Zn^{2+}) and/or protons (H+) into the molecular crystal lattice, facilitated by strong coordination bonding. (3) Rapid Reaction Kinetics: Because organic small molecules store charge through ion-coordination rather than sluggish solid-state lattice diffusion, TCBQ exhibits exceptionally fast charge-transfer kinetics, supporting high-rate performance.
| Part Number |
CAZIBOCTCBQ (C-AZIB-OC-TCBQ) |
| CAS |
118-75-2 |
| Chemical Formula & Structure |
C6Cl4O2  |
| Molecular Weight |
245.88
|
| Appearance |
Light yellow powder
|
| Specific Capacity |
~200 mAh/g (theoretical value is ~218 mAh/g)
flat discharge plateau ~1.1 V vs. Zn/Zn2+
|
| Package Grade |
50 g, 100 g, and 200 g/pack |
Notes: Please try to store the TCBQ powder in a dry place and do vacuum drying (90-100 °C) for 12-24 h.
References:
- P. Sireesha, et al. High-Rate Quinone Cathodes and Nafion Conditioning for Improved Stability in Aqueous Zinc-Ion Batteries, ACS Appl. Mater. Interfaces (2025) 17 (13): 19596–19606.
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M. Sajid, et al. Highly Stable Cyclic Performance of Benzoquinone-Based Organic Cathode in Aqueous Zinc Ion Batteries, Batteries & Supercaps, 2025, 8, 15, e202400675