PT - JOURNAL ARTICLE AU - Yang, Yang AU - Qian, Yumin AU - Li, Haijing AU - Zhang, Zhenhua AU - Mu, Yuewen AU - Do, David AU - Zhou, Bo AU - Dong, Jing AU - Yan, Wenjun AU - Qin, Yong AU - Fang, Li AU - Feng, Renfei AU - Zhou, Jigang AU - Zhang, Peng AU - Dong, Juncai AU - Yu, Guihua AU - Liu, Yuanyue AU - Zhang, Xianming AU - Fan, Xiujun TI - O-coordinated W-Mo dual-atom catalyst for pH-universal electrocatalytic hydrogen evolution AID - 10.1126/sciadv.aba6586 DP - 2020 Jun 01 TA - Science Advances PG - eaba6586 VI - 6 IP - 23 4099 - http://advances.sciencemag.org/content/6/23/eaba6586.short 4100 - http://advances.sciencemag.org/content/6/23/eaba6586.full SO - Sci Adv2020 Jun 01; 6 AB - Single-atom catalysts (SACs) maximize the utility efficiency of metal atoms and offer great potential for hydrogen evolution reaction (HER). Bimetal atom catalysts are an appealing strategy in virtue of the synergistic interaction of neighboring metal atoms, which can further improve the intrinsic HER activity beyond SACs. However, the rational design of these systems remains conceptually challenging and requires in-depth research both experimentally and theoretically. Here, we develop a dual-atom catalyst (DAC) consisting of O-coordinated W-Mo heterodimer embedded in N-doped graphene (W1Mo1-NG), which is synthesized by controllable self-assembly and nitridation processes. In W1Mo1-NG, the O-bridged W-Mo atoms are anchored in NG vacancies through oxygen atoms with W─O─Mo─O─C configuration, resulting in stable and finely distribution. The W1Mo1-NG DAC enables Pt-like activity and ultrahigh stability for HER in pH-universal electrolyte. The electron delocalization of W─O─Mo─O─C configuration provides optimal adsorption strength of H and boosts the HER kinetics, thereby notably promoting the intrinsic activity.