TY - JOUR
T1 - Ru-Enriched Metal-Organic Framework Enabling a Self-Powered Hydrogen Production System
AU - Xu, Xuefei
AU - Li, Linfeng
AU - Chen, Hsiao Chien
AU - Zhang, Xia
AU - Huang, Yaping
AU - Humayun, Muhammad
AU - Attia, Yasser A.
AU - Pang, Yuanjie
AU - Wang, Deli
AU - Wang, Xin
AU - Wang, Chundong
N1 - Publisher Copyright:
© 2024 American Chemical Society
PY - 2024/8/16
Y1 - 2024/8/16
N2 - Constructing a direct hydrazine fuel cell (DHzFC)-driven overall hydrazine splitting (OHzS) system is a conceptual idea for hydrogen generation with theoretical zero-energy consumption, which remains a formidable challenge. Herein, a two-dimensional Ru-enriched metal-organic framework catalyst (NiRu-ABDC) is prepared via a self-sacrificing template strategy. The experimental and density functional theory (DFT) calculation results indicate that Ru serves as an active site for both the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR), endowing NiRu-ABDC∥NiRu-ABDC with outstanding OHzS performance. The DFT results further clarify that Ru incorporation facilitates electron localization and strengthens the M-O bonds in the Ni-ABDC framework, enabling the NiRu-ABDC∥NiRu-ABDC electrolyzer cell to be stable for over 100 h. Further, a self-powered hydrogen production system is constructed with anodic NiRu-ABDC, in which OHzS is successfully powered by synthesized DHzFCs, achieving hydrogen yield of 14.3 mol h-1 m-2, showing its feasibility for practical applications.
AB - Constructing a direct hydrazine fuel cell (DHzFC)-driven overall hydrazine splitting (OHzS) system is a conceptual idea for hydrogen generation with theoretical zero-energy consumption, which remains a formidable challenge. Herein, a two-dimensional Ru-enriched metal-organic framework catalyst (NiRu-ABDC) is prepared via a self-sacrificing template strategy. The experimental and density functional theory (DFT) calculation results indicate that Ru serves as an active site for both the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR), endowing NiRu-ABDC∥NiRu-ABDC with outstanding OHzS performance. The DFT results further clarify that Ru incorporation facilitates electron localization and strengthens the M-O bonds in the Ni-ABDC framework, enabling the NiRu-ABDC∥NiRu-ABDC electrolyzer cell to be stable for over 100 h. Further, a self-powered hydrogen production system is constructed with anodic NiRu-ABDC, in which OHzS is successfully powered by synthesized DHzFCs, achieving hydrogen yield of 14.3 mol h-1 m-2, showing its feasibility for practical applications.
KW - electronic structure
KW - hydrazine oxidation reaction
KW - hydrogen evolution reaction
KW - metal−organic frameworks
KW - single atom
UR - http://www.scopus.com/inward/record.url?scp=85199920661&partnerID=8YFLogxK
U2 - 10.1021/acscatal.4c03722
DO - 10.1021/acscatal.4c03722
M3 - 文章
AN - SCOPUS:85199920661
SN - 2155-5435
VL - 14
SP - 12051
EP - 12063
JO - ACS Catalysis
JF - ACS Catalysis
IS - 16
ER -
