TY  - JOUR
AU  - Wu, Xiaohui
AU  - Tang, Lu
AU  - Si, Yang
AU  - Ma, Chunlan
AU  - Zhang, Peng
AU  - Yu, Jianyong
AU  - Liu, Yitao
AU  - Ding, Bin
PY  - 2023
TI  - Smart Interfacing between Co-Fe Layered Double Hydroxide and Graphitic Carbon Nitride for High-efficiency Electrocatalytic Nitrogen Reduction
JO  - Energy & Environmental Materials
SN  - 2575-0348
VL  - 6
IS  - 2
AB  - Bimetallic compounds such as hydrotalcite-type layered double hydroxides (LDHs) are promising electrocatalysts owing to their unique electronic structures. However, their abilities toward nitrogen adsorption and reduction are undermined since the surface-mantled, electronegative –OH groups hinder the charge transfer between transition metal atoms and nitrogen molecules. Herein, a smart interfacing strategy is proposed to construct a coupled heterointerface between LDH and 2D g-C3N4, which is proven by density functional theory (DFT) investigations to be favorable for nitrogen adsorption and ammonia desorption compared with neat LDH surface. The interfaced LDH and g-C3N4 is further hybridized with a self-standing TiO2 nanofibrous membrane (NM) to maximize the interfacial effect owing to its high porosity and large surface area. Profited from the synergistic superiorities of the three components, the LDH@C3N4@TiO2 NM delivers superior ammonia yield (2.07 × 10−9 mol s−1 cm−2) and Faradaic efficiency (25.3%), making it a high-efficiency, noble-metal-free catalyst system toward electrocatalytic nitrogen reduction.
UR  - https://doi.org/10.1002/eem2.12316
DO  - 10.1002/eem2.12316