Heterointerface engineering with a built-in electric field enables tailoring of surface electronic structures, bridging electronic modulation with reaction kinetics for efficient energy conversion. Herein, we construct a Co-doped V2O3/VN heterointerface (Co-VN@V2O3), wherein the synergistic interfacial effect optimizes water adsorption, dissociation, and hydrogen desorption, thereby conferring high activity for the alkaline hydrogen evolution reaction (HER). The catalyst also exhibits low overpotential and favorable kinetics toward hydrazine oxidation reaction (HzOR), enabling overall hydrazine splitting at a substantially reduced cell voltage. Furthermore, the outstanding HzOR performance allows a direct hydrazine fuel cell to drive the HER-HzOR electrolyzer, and the system can be further extended to a solar-driven configuration, underscoring its versatility in sustainable energy conversion. This work establishes heterointerface-induced electronic modulation as a versatile strategy for bifunctional catalysis, thereby promoting sustainable hydrogen production within a closed-loop energy cycle.
The pursuit of low-cost, efficient, and durable electrocatalysts for the hydrogen evolution reaction (HER) is crucial to advancing sustainable green hydrogen production. Herein, we tailor the RuCo alloy electronic structure via an MXene-mediated reconstruction strategy for the resultant RuCo-MXene heterostructure ele...
Zi-Fang Zhang, Xin-Yue Yu, Shuai-Peng Wang et al.· ACS Sustainable Chemistry &a...· 0 citations
Ammonia (NH3) synthesis via nitrate reduction offers a sustainable energy conversion and mitigates aquatic NO3− pollution, yet most catalysts require high overpotentials for appreciable NH3 yields. Here, we report a sulfur-leaching strategy to transform Cu1.8S/Ru heterostructures into a small CuRu-Cu2O nanocomposite wi...
Hydrazine-assisted water electrolysis offers an energy-efficient route for hydrogen production. However, rational regulation of the electronic structure of active sites to simultaneously optimize the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR) remains a critical challenge. Herein, we repor...
Lin Luo, Jin-Feng Zheng, Hui-Ying Zhou et al.· Journal of Colloid and Inter...· 3 citations
Rationally designing heterostructures with well-regulated electronic environments is desirable to circumvent the sluggish kinetics of the oxygen evolution reaction (OER). Herein, we propose a dual-engineering strategy─combining Fermi-level manipulation via heteroatom doping with Mott-Schottky heterojunction constructio...
Hou-Shan Sha, Xiao-Ming Lang, Chun-Mei Li et al.· Langmuir· 0 citations
Achieving ultrafast kinetics and long-term durability in aqueous zinc-ion batteries (AZIBs) remains challenging because the interplay between interfacial electronic structure and structural stability of vanadium oxide cathodes is poorly understood. Here, we design a locally graphitized carbon-encapsulated V2O3 cathode...
Nian-Di Chen, Man-Hua Li, Xiang Peng et al.· Journal of Colloid and Inter...· 0 citations
To address the prominent "bubble shielding" effect at high current densities during hydrazine oxidation reaction (HzOR) as a replacement for the traditional oxygen evolution reaction (OER), this study successfully designed a medium-entropy heterojunction electrocatalyst (Co0.226Fe0.277Ni0.209Mo0.288/MoS2/CC) featuring...
M. Hao, Chun-Lei Chang, Chun-Hu Li et al.· Inorganic Chemistry· 0 citations
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