Skip to content
DraconiticResearch
Search Sources API
201,818 studies31 sourcesUpdated 21 min ago
Peer-reviewedCC BY 3.0Chemical Science

Ligand-assisted facile Co2+/Co3+ conversion in a metal–hydroxide framework promotes electrochemical benzyl alcohol oxidation at ampere-scale current density

  • Toufik Ansari1
  • Harshit Gupta1
  • Manshu Dhillon2
  • Aviru Kumar Basu2
  • Arindam Indra1
  1. 1Department of Chemistry, IIT (BHU) Varanasi UP-221005 India
  2. 2Institute of Nano Science and Technology Knowledge City, Sector 81 Mohali Punjab 140306 India
Read full textDOICite

Abstract

The electrooxidation of benzyl alcohol at the anode has emerged as an alternative to the kinetically sluggish oxygen evolution reaction (OER). Although cobalt-based electrocatalysts have been widely explored for the OER, their catalytic performance for anodic alcohol oxidation reactions remains limited due to the substantial energy barrier arising from the transformation of the precatalyst to the active Co(O)OH phase and its weak interaction with benzyl alcohol. Herein, a ligand-modification strategy is adopted by incorporating chloranilic acid as a redox-active functional ligand into the structure of FeCo-layered double hydroxide (LDH) to form a metal hydroxide organic framework (HOF). The quinonoid structure of chloranilic acid in the HOF facilitates the electrooxidation of Co2+ to Co3+ to form Fe–Co3+(O)OH as the active phase. As a result, FeCo-HOF-AC produces higher benzyl alcohol oxidation activity, suppressing the OER, compared to the active catalyst FeCo-LDH-AC. Interestingly, FeCo-HOF-AC achieved 1.6 A cm−2 current density for benzyl alcohol oxidation at 1.39 VRHE at an elevated temperature (65 °C), with 98% faradaic efficiency for PhCOOH.

Related

  1. Chloride-assisted electrochemical conversion of Fe-Cr-Ni alloy scrap into oxide powders for enhanced acid leaching
    Myungsuk Kim, Namhun Kwon, Soong Ju Oh +2
    Electrochemistry CommunicationsPeer-reviewedCC BY-NC-ND 4.0Full textElectrochemistry & energyCrossrefDOAJ
  2. Synthesis of Co layered double hydroxide@N-doped biochar: An effective electrochemical sensing interface to identify environmentally hazardous phenolic species
    Lingxiu Shu, Hongyi Jia, Xiyue Du +6
    Colloids and Surfaces A Physicochemical and Engineering AspectsPeer-reviewedLicence not stated7 citedAnalytical chemistryOpenAlex
  3. A stable MIL-100(In) metal–organic framework for multifunctional CO2 capture and electrochemical conversion to formic acid
    Saim Emin, Luis Miguel Azofra, Tatiparthi Vikram Sagar +9
    Microporous and Mesoporous MaterialsPeer-reviewedCC BY1 citedGeneral chemistryHAL
  4. Reaction Studies on the Conversion of Aryl Methyl Halides to Aryl Carbonyl Compounds Using Ph4PBr/EDTA/CaF2 as a Catalytic Oxidation System
    Xianwei Xu, Sida Li, Xincheng Liu +4
    MoleculesPeer-reviewedCC BY 4.0Organic chemistryCrossref
  5. MXene‐Based Electrocatalysts for Sustainable Nitrogen Conversion: From Ammonia Oxidation to Nitrogen and Nitrate Reduction
    Afaf Salah Eid, Alaa M. Ibrahim, Soon Hyung Kang
    Advanced Materials InterfacesPeer-reviewedCC BYFull textMaterials & polymersDOAJ

Cite

BibTeXRIS
BibTeX
@article{ansari2026ligandassisted,
  title = {{Ligand-assisted facile Co2+/Co3+ conversion in a metal–hydroxide framework promotes electrochemical benzyl alcohol oxidation at ampere-scale current density}},
  author = {Toufik Ansari and Harshit Gupta and Manshu Dhillon and Aviru Kumar Basu and Arindam Indra},
  journal = {Chemical Science},
  year = {2026},
  month = oct,
  doi = {10.1039/d6sc06869c},
  url = {https://doi.org/10.1039/d6sc06869c},
  note = {CC BY 3.0},
}
RIS
TY  - JOUR
TI  - Ligand-assisted facile Co2+/Co3+ conversion in a metal–hydroxide framework promotes electrochemical benzyl alcohol oxidation at ampere-scale current density
AU  - Toufik Ansari
AU  - Harshit Gupta
AU  - Manshu Dhillon
AU  - Aviru Kumar Basu
AU  - Arindam Indra
PY  - 2026
DA  - 2026/10/29
JO  - Chemical Science
DO  - 10.1039/d6sc06869c
UR  - https://doi.org/10.1039/d6sc06869c
AB  - The electrooxidation of benzyl alcohol at the anode has emerged as an alternative to the kinetically sluggish oxygen evolution reaction (OER). Although cobalt-based electrocatalysts have been widely explored for the OER, their catalytic performance for anodic alcohol oxidation reactions remains limited due to the substantial energy barrier arising from the transformation of the precatalyst to the active Co(O)OH phase and its weak interaction with benzyl alcohol. Herein, a ligand-modification strategy is adopted by incorporating chloranilic acid as a redox-active functional ligand into the structure of FeCo-layered double hydroxide (LDH) to form a metal hydroxide organic framework (HOF). The quinonoid structure of chloranilic acid in the HOF facilitates the electrooxidation of Co2+ to Co3+ to form Fe–Co3+(O)OH as the active phase. As a result, FeCo-HOF-AC produces higher benzyl alcohol oxidation activity, suppressing the OER, compared to the active catalyst FeCo-LDH-AC. Interestingly, FeCo-HOF-AC achieved 1.6 A cm−2 current density for benzyl alcohol oxidation at 1.39 VRHE at an elevated temperature (65 °C), with 98% faradaic efficiency for PhCOOH.
SN  - 2041-6520
SN  - 2041-6539
ER  -