Ternary PtCuMo Catalyst

High Activity under Pulsed Potential

Under pulsed potential operation, the ternary PtCuMo/CN catalyst achieves high production rate and selectivity for ethylene glycol oxidation to glycolic acid, overcoming rapid deactivation of Pt under constant potential.

Mingjun, Ouyang · Yutong, Liu · Wang, Lianchao · Wu, Hua · Wang, Kuaibing

Chemical Engineering Journal 2026

Specifications

Current Density Recovery

{'zh': '99', 'en': '99'} %

Initial Current Density Before Recovery

{'zh': '2.7', 'en': '2.7'} %

Catalyst Composition

{'zh': 'Pt1.0Cu0.75Mo2.0/CN', 'en': 'Pt1.0Cu0.75Mo2.0/CN'}

Advantages

Clear recovery mechanism

During non-oxidation periods, adsorption/desorption of EG and GA restores mass transfer, recovering current density from 2.7% to 99%.

Recovery without reduction current

Even with open circuit and surface oxides retained, current density recovers to 82%, showing recovery does not require reduction.

Universal mechanism

The mass transfer restoration mechanism holds across different metal catalysts and OER, providing a direct reference for addressing precious metal deactivation in EGOR.

Applications

• Ethylene Glycol Oxidation Catalysts：Sustains catalyst activity under pulsed potential, extending operation for ethylene glycol oxidation to glycolic acid.
• Multi-metallic Electrocatalysts：Synergistic multi-metallic composition improves resistance to deactivation, addressing rapid precious metal deactivation.
• Organic Electrooxidation：Mass transfer restoration strategy enables long-term stable operation of organic electrooxidation.
• Direct Alcohol Fuel Cells：Pulsed potential mitigates anode catalyst deactivation, enhancing durability of direct alcohol fuel cells.