Cu Single-atom Catalysts (ZIF-8 precursor)

Product Name Cu Single-atom Catalysts (ZIF-8 precursor) Product Overview Cu single-atom catalysts (SACs) are an advanced composite material constructed by combining cerium-based nanoenzymes with the zeolite imidazolate framework material ZIF-8. It ingeniously integrates the structural advantages of metal-organic frameworks (MOFs) with the catalytic activity of cerium, creating an artificially engineered enzyme with exceptional and tunable performance. This material typically uses ZIF-8 as a carrier or precursor, introducing enzyme-like cerium species into its framework or pores through doping, loading, or in situ synthesis strategies. The carrier/matrix consists of ZIF-8, which is formed by the coordination of zinc ions with 2-methylimidazole. It features a high specific surface area, regular porosity, good chemical stability, and biocompatibility. The active centers are primarily composed of copper (Cu), which exists mainly in a mixed valence state of Cu²⁺ and Cu⁺. This variable valence state enables it to efficiently catalyze redox reactions, thereby mimicking the activity of natural enzymes. Technical Parameter Appearance:Black powder Grain size ~800 nm C Montent 80-85wt% (XPS) N Montent 3-5%wt% (XPS) O Montent 5-10wt% (XPS) Cu Montent 0.5-1wt% (XPS) Product Features 1) High catalytic activity: The Cu²⁺/Cu⁺ redox pair confers multiple enzymatic activities. 2) Exceptional stability: The ZIF-8 framework provides physical protection and confined space for the active sites, making this nanoenzyme more stable than free enzymes or individual copper nanoparticles over a wide range of pH and temperature. 3) Tunable structure and activity: By modifying synthesis conditions (such as the amount of copper source added and reaction time), the size, morphology, copper loading, and valence ratio of ZIF-8 can be precisely controlled, thereby customizing its catalytic performance. Application Fields 1. Energy Conversion and Storage (Clean Energy): Used for highly efficient electrocatalytic reactions: CO₂ Reduction (CO₂RR): Electrochemical reduction of the greenhouse gas CO₂ into high-value-added fuels such as methane (CH₄) and ethylene (C₂H₄). Green Hydrogen Production (HER): Used for hydrogen production via water electrolysis, replacing expensive platinum-based catalysts. Fuel Cells (ORR): Catalyzing the oxygen reduction reaction at the cathode to enhance the energy conversion efficiency of fuel cells. Ammonia Synthesis (NRR/NRR): Converting nitrogen gas or nitrates into ammonia at ambient temperature and pressure, significantly reducing energy consumption. 2. Green Organic Synthesis (Fine Chemicals): Low-carbon alkane dehydrogenation: Enables propane dehydrogenation to produce propylene at lower temperatures, resulting in significant energy savings. Hydrogenation Reactions: Efficiently catalyzing the selective hydrogenation of alkyne to produce high-purity olefins (e.g., ethylene from acetylene). CO₂ Conversion: Directly converting CO₂ and hydrogen into low-carbon olefins (ethylene, propylene, etc.), thereby "turning waste into treasure." 3. Biomedicine and Health: Cancer Treatment: By mimicking peroxidase (POD), they generate reactive oxygen species (·OH) in the tumor microenvironment to kill cancer cells. Antibacterial and Wound Healing: They eliminate bacteria by generating reactive oxygen species while regulating the wound microenvironment to promote healing. Antioxidant and Anti-inflammatory Effects: By mimicking superoxide dismutase (SOD), they scavenge excess free radicals in the body and are used to treat inflammatory diseases. Biosensing: Based on their high catalytic activity, they are used to construct highly sensitive biomolecular detectors. 4. Environmental Remediation and Agriculture (Green and Eco-Friendly): Pollutant Degradation: Catalyzing the degradation of organic pollutants and toxic gases in water or air. Precision Sterilization in Agriculture: Developing single-atom copper fungicides that ensure highly effective sterilization while reducing copper residue on crop surfaces by nearly 20 times, thereby replacing traditional copper-based pesticides with high residue levels.