Publications by authors named "Tingyi Weng"

The electrocatalytic nitrate reduction reaction (NORR) offers a sustainable route for ammonia synthesis while addressing nitrate pollution, yet it faces challenges such as sluggish kinetics, competing hydrogen evolution reaction (HER), and poor selectivity under high current densities. Herein, we report a phosphorus-doped Co(OH)/Cu nanowire (P-Co(OH)/Cu NW) tandem catalyst engineered via in situ reconstruction, which achieves exceptional NORR performance through synergistic dual-site mechanisms. The Cu phase promotes NO adsorption and activation, Co(OH) facilitates ammonia formation, while P doping induces water dissociation to generate *H for hydrogenation instead of H evolution.

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Low-temperature thermal catalysis without additional oxidants offers a promising solution to the challenges of pressure and temperature inherent in catalytic wet air oxidation (CWAO) for water treatment. Bimetallic oxides have demonstrated superior catalytic oxidation activity and stability compared to conventional monometallic oxides. However, research on the effects of bimetallic oxides in liquid-phase low-temperature thermal catalysis is still in its early stages.

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With the increasing demand for fresh-water and electricity in modern society, various technologies are being explored to obtain fresh-water and electricity. Due to advances in materials science, solar-driven interfacial evaporation (SDIE) systems have attracted widespread attention because they require only solar energy, and possess a high evaporation rate and little pollution. The researchers combined energy harvesting measures into the system to output electricity, further improving energy utilization.

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Article Synopsis
  • Catalytic oxidation at mild conditions is essential to improve wastewater treatment technologies by reducing the high pressure and temperature issues of current methods.
  • Various crystal phases of MnO were synthesized and tested, revealing that λ-MnO has the highest catalytic activity for oxidizing organic pollutants at low temperatures.
  • The differing catalytic efficiencies of MnO phases are linked to their oxygen vacancies and redox activities, underscoring the importance of crystal structure in designing effective catalysts for wastewater treatment.
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