Decoupling Adsorption of Key Intermediates Enabled by Asymmetric 3d‐5d‐Orbital Hybridization: Durable High‐Performance AEM Water Electrolysis and Zn–Air Batteries
Abstract
Abstract Decoupling key intermediates’ adsorption via asymmetric 3d‐5d‐orbital hybridization overcomes the intrinsic scaling relation bottleneck, enabling rational design of high‐performance, durable multifunctional electrocatalysts for anion exchange membrane water electrolyzers (AEMWEs) and Zn–air batteries (ZABs). Here, we reveal that asymmetric 3d‐5d‐orbital hybridization, engineered through the synergy of lattice strain and defect structures in a nitrogen‐doped carbon‐supported PtCo alloy (PtCo@NPC), effectively decouples these adsorption energies of key intermediates. PtCo@NPC demonstrates exceptional multifunctional electrocatalytic performance for the hydrogen evolution reaction, oxygen evolution reaction, and oxygen reduction reaction in alkaline media. Density functional theory calculations suggest that electronic structure modulation tunes the adsorption characteristics of intermediates, while X‐ray absorption fine structure spectroscopy confirms the corresponding changes in the electronic states of surface Pt and Co atoms. When deployed in devices, PtCo@NPC enables AEMWEs to operate stably for 522 h at 1000 mA cm −2 with a voltage decay rate of only 0.103 mV h −1 and empowers ZABs to achieve a long cycle life of over 2520 cycles at 5.0 mA cm −2 . This study highlights electronic‐structure modulation as a powerful strategy for advanced energy technologies.
Article Details
Authors (10)
Xin‐Yi Zhang
Faculty of Chemistry Northeast Normal University Changchun China
Hang Yin
Han‐Hao Liu
Department of Chemistry Northeast Normal University Changchun Jilin 130024 China
Ying‐Di Ge
State Key Laboratory of Integrated Optoelectronics and MOE Key Laboratory for UV Light‐Emitting Materials and Technology Department of Physics Northeast Normal University Changchun Jilin 130024 China
Cong‐Cong Dang
State Key Laboratory of Integrated Optoelectronics and MOE Key Laboratory for UV Light‐Emitting Materials and Technology Department of Physics Northeast Normal University Changchun Jilin 130024 China
Shuo‐Hang Zheng
State Key Laboratory of Integrated Optoelectronics, and MOE Key Laboratory For UV Light‐Emitting Materials and Technology Department of Physics Northeast Normal University Changchun Jilin P. R. China
Zhen‐Yi Gu
MOE Key Laboratory For UV Light‐Emitting Materials and Technology Northeast Normal University Changchun Jilin P. R. China
Jun‐Ming Cao
State Key Laboratory of Integrated Optoelectronics and MOE Key Laboratory For UV Light‐Emitting Materials and Technology School of Physics Northeast Normal University Changchun Jilin China
Jin‐Zhi Guo
State Key Laboratory of Integrated Optoelectronics, and MOE Key Laboratory for UV Light‐Emitting Materials and Technology, Department of Physics Northeast Normal University Changchun China
Xing‐Long Wu
MOE Key Laboratory For UV Light‐Emitting Materials and Technology Northeast Normal University Changchun Jilin P. R. China