Accelerating glucose electrolysis on Cu-doped MIL-88B for an energy efficient anodic reaction in water splitting

Abstract

This work presents Cu-doping to MIL-88B frameworks as a promising strategy for accelerating the glucose oxidation at an anode, thereby driving the energy-efficient water-splitting for green-hydrogen generation at the cathode.

Three-Dimensional Heterostructured CoSe2/MoSe2@CC as Trifunctional Electrocatalysts for Energy-Efficient Hydrogen Production

“…On the one hand, advanced electrocatalyst materials are designed to accelerate the speed of OER. On the other hand, a simpler small molecule electrooxidation reaction with low electrode potential is employed to assist the anode OER in enhancing the hydrolysis energy conversion efficiency, such as glucose and urea. − Currently, urea oxidation (UOR) has proven to be a promising anodic reaction (CO­(NH 2 ) 2 + 6OH – → N 2 + 5H 2 O + CO 2 + 6e – ), which has an ultralow potential (0.37 V vs RHE) . In addition, the products of UOR are only nontoxic N 2 and CO 2 , thus mitigating the safety risk posed by mixtures of H 2 and O 2 , on the other hand, urea oxidation can also be used for the treatment of urine-containing waste liquid. , To date, Pt, Ru, Ir, and other precious metal electrocatalysts are recognized as the most advanced HER, OER, and UOR electrocatalysts, which significantly cut the production cost of H 2 and improve the combined water electrolysis efficiencies. − Unfortunately, due to the expensive costs of the precious metals, the large-scale application of these precious metals in industrial production has been seriously hindered .…”

Unlocking the catalytic potential of nickel sulfide for sugar electrolysis: green hydrogen generation from kitchen feedstock

“…From this perspective, water electrolysis operated by renewable energy sources is ideal for producing green hydrogen. 6–11 However, state-of-the-art catalysts, such as platinum (Pt) and RuO 2 or IrO 2 , though effective in water electrolysis, are expensive and rare. 12–15 In addition, oxygen evolution reactions (OER) pose a major obstacle to implementing water electrolysis commercially due to their high overpotentials and kinetic limitations.…”

Metal-ion doping in metal–organic-frameworks: modulating the electronic structure and local coordination for enhanced oxygen evolution reaction activity

“…As in the general cases of oxides, chalcogenides, nitrides and carbides, [23][24][25] metal-ion doping modulates the electronic structure of an MOF, thus improving those properties directly related to its electrocatalytic activity. [26][27][28] This frontier article highlights the synergistic effect between the host MOF and the metal-ion dopant in altering the properties of their surrounding within the frameworks that play a key role in boosting catalytic activity toward the OER.…”