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Materials for Anodic Oxidation Reaction: Water Oxidation, Organic Oxidation, Ammonia Oxidation
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This review paper looks at new materials that can help produce clean hydrogen fuel from water using electricity, while also turning waste products, like plastic-derived alcohols, polluted wastewater, and excess ammonia from fertilizers, into useful, less harmful substances. This matters because it points toward technology that could simultaneously clean up environmental pollutants (including plastic waste) and reduce the pollution and contaminated water that can affect human health, while producing a clean-burning fuel source. As a review, it summarizes existing research and progress in this field rather than presenting new experimental results.
Electrocatalytic water splitting is a sustainable pathway to large-scale hydrogen production and aligns with global renewable energy goals by providing clean, zero-carbon fuel. Hybrid water electrolysis addresses the limitations of the oxygen evolution reaction (OER), including sluggish kinetics, large overpotential, and explosive risk, thereby allowing for continuous hydrogen generation and the conversion of organic compounds into valuable chemicals. Feedstock for this process can be small alcohols such as methanol and ethanol, biomass-derived alcohols, and plastic-waste-derived alcohols, and electrocatalytic treatment also offers an effective solution for organic wastewater pollutants. Ammonia from fertilizer, industry, and water treatment must be oxidized to prevent environmental harm through water pollution and ecological system damage. Electrochemical ammonia oxidation in fuel cells enables ammonia to be a hydrogen carrier, in which clean energy is obtained by producing byproducts such as nitrogen and water. Apart from that, it reduces pollutants and the nitrogen recovered helps in utilizing fertilizers thus promoting eco-friendly agriculture, and reducing the carbon footprint in chemical industries. The performance and stability in chemical synthesis, energy conversion, and environmental remediation through anodic oxidation reactions require highly engineered materials that make up the electrode. This chapter explores recent advancements in anodic material design, highlighting challenges and future directions for developing efficient, cost-effective, and sustainable electrodes tailored to specific oxidation processes.
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Electrochemical transformation of plastic waste and organic compounds for the generation of value-added materials
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This thesis demonstrates electrochemical approaches that simultaneously generate green hydrogen and convert plastic waste and organic compounds into value-added chemicals under mild conditions, enabling closed-loop circular economy processes. Electrochemical plastic valorization is a key emerging strategy for reducing the volume of plastic waste that ultimately fragments into environmental microplastics.
PET Waste‐Derived Bimetallic MOFs Nanowire Arrays Enable Efficient Overall Water Splitting
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Scientists found a clever way to turn plastic bottle waste (PET) into a material that helps produce clean hydrogen fuel from water using less energy. This matters because it tackles two problems at once—reducing plastic pollution (which can break down into microplastics that contaminate our water and food) while supporting cleaner energy production that doesn't rely on fossil fuels. While this research is still in the lab stage and not yet a consumer product, it points toward future technologies that could make plastic recycling more valuable and help shift us toward sustainable energy sources.
Comprehensive Insights into Photoreforming of Waste Plastics for Hydrogen Production
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This review examines photocatalytic "photoreforming" — a solar-powered process that breaks down waste plastics while simultaneously generating hydrogen fuel and useful chemical byproducts. Recent advances in catalyst design, including semiconductor materials and metal-organic frameworks, are analyzed alongside factors like light intensity and pH that affect hydrogen output. This dual-purpose approach could help address both the global plastic waste crisis and the need for clean energy simultaneously.
Future Perspectives of Electrocatalysis
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This review paper rounds up recent progress in "electrocatalysis", using electricity instead of harsh chemicals to produce clean fuels like hydrogen and ammonia, treat wastewater, and break down pollutants. Notably, it highlights electricity-based methods (called electro-coagulation) that can help remove microplastics and other hard-to-break-down contaminants from water, which could translate into cleaner drinking water and lower human exposure to these pollutants. Overall, the research points toward greener, more efficient technologies for producing energy and cleaning up environmental contaminants that affect our health.
Nanostructural engineering of Cu-doped ZnS-ZnO nanorods for high-efficiency solar-driven plastic-to-hydrogen conversion
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Scientists have developed a special material that uses sunlight to break down plastic waste while producing hydrogen, a clean fuel, essentially turning trash into energy. This matters because it offers a way to tackle plastic pollution (a major source of the microplastics now found in our food, water, and even our bodies) while creating renewable power, all without using toxic or expensive metals. While still an early-stage lab breakthrough, this approach could one day help reduce the plastic waste that breaks down into microplastics in our environment.
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