ABSTRACT Catalytic activity generally encounters limitations imposed by scaling relations where the adsorption strengths of different adsorbates are highly correlated. Here, we present a time‐breaking uniformity strategy to circumvent this constraint: independently modulating the adsorbate‐catalyst bonding strength in separate time frames via a transient alternating electric field. Employing the non‐oxidative coupling of methane as a model reaction, we develop the Au@TiO 2 core–shell catalyst composed of an Au core providing visible‐triggered alternating electric fields through localized surface plasmon resonance (LSPR) and a TiO 2 shell for photocatalysis in the ultraviolet region. This catalyst achieves CH 4 ‐to‐C 2 H 6 activity of 1.66 mmol g −1 h −1 and a high quantum efficiency of 5.2% at room temperature under ambient pressure. Mechanistic studies reveal that the reaction followed the gas‐phase ·CH 3 coupling pathway. The alternating electric field generated by LSPR leads to a net enhancement in both CH 4 adsorption and ·CH 3 desorption, thereby circumventing the scaling relations.
Huang et al. (Mon,) studied this question.