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This study focuses on the utilization of two‐dimensional Ti3C2MXene as a catalyst for photocatalytic hydrogen production. MXenes, a class of transition metal carbides/nitrides, exhibit exceptional properties conducive to enhancing photocatalytic reactions. This research explores the performance of Ti3C2MXene as a cocatalyst in photocatalytic systems, aiming to improve charge separation, inhibit recombination, and facilitate efficient hydrogen evolution from water under light irradiation. The synthesis methods, catalyst‐loading strategies, and overall photocatalytic mechanisms are investigated, shedding light on the potential of Ti3C2MXene as a promising material for advancing hydrogen production through sustainable means.

The progress of effective electrode materials for high-performance supercapacitors is one of the most cutting-edge fields of study in the search for alternative and renewable energy uses. 2D MXenes, with their distinctive physiochemical features, have successfully improved the electrode materials by imparting superior energy storage, thus distinguishing themselves among electrode materials. A new class of cobalt ferrite nanoparticles embedded Cr2CTxMXene sheets have been fabricated and tested for supercapacitor applications. Notably, the cobalt ferrite acts as interlayer spacers between Cr2CTxMXene layers. The Cobalt ferrite/Cr2CTxMXene composite offers enhanced supercapacitive features compared to pristine cobalt ferrite or Cr2CTxMXene sheets. The cobalt ferrite/Cr2CTxMXene nanocomposite shows a maximal specific capacity of 763.83C g−1(1909.6 F g−1) at 1 A g−1. The fabricated device using the prepared material exhibited a capacitance retention of 99 % up to 2500 cycles. Also, this attractive nanocomposite displays a charge transfer resistance of only 0.25 Ω, which is highly beneficial to charge-discharge at higher current rates.

Metal organic frameworks (MOFs) are developing as promising catalysts for oxygen evolution reactions. A bimetallic electrocatalyst MOF using Ni and Cu as metal sources and 1,4-benzene dicarboxylic acid as a linker has been synthesized and evaluated for oxygen evolution reaction. Compared to monometallic MOFs, bimetallic MOFs participate more actively in electrocatalysis due to the higher abundance of active sites, local crystallinity, and lower long-range disorder. When utilized as oxygen evolution catalysts, Ni-Cu MOFs have a low overpotential of 340 mV at 10 mA cm-2and a low Tafel slope of 65 mV dec-1. The study paves the way for the development of highly efficient catalysts for water splitting applications.