Cu based Metal Organic Framework (Cu-MOF) for electrocatalytic hydrogen evolution reaction

Abstract

Hydrogen production using novel catalysts is regarded as one of the most needed technology for the future economic needs and water splitting to give H2 gas, which is a challenging task for large-scale production. This work reports the synthesis of Meso-Cu-BTC metal organic framework and further used for understanding its role in electrochemical hydrogen evolution reaction (HER) in 1 M NaOH solution. Meso-Cu-BTC electrocatalyst showed a less overpotential of 89.32 mV and an onset potential of 25 mV with an appreciable current density. Results show a low Tafel slope of 33.41 mVdec−1 and long-term durability. Thus, the overall results show that Meso-Cu-BTC acted as a good candidate for electrocatalysis towards hydrogen evolution.

Mesoporous carbon‐supported CO 3 O 4 derived from Zif‐67 metal organic framework (MOF) for hydrogen evolution reaction in acidic and alkaline medium

“…The final step of the mechanism involves two adsorbed hydrogen ion combining on the electrode surface to form hydrogen molecules, which is named as Tafel reaction (Equation ( 4)). 25 A þ…”

Three-dimensional nanoporous Cu-BTC/graphene oxide nanocomposites with engineered antibacterial properties synthesized via a one-pot solvosonication process

“…Raman bands at 177 and 273 cm -1 can be assigned to the Cu-Cu dimer moieties [51]. In addition, the bands at 500 and 664 cm -1 were related to the stretching modes of Cu-O coordination bond, and Cu2O bonding, respectively [46,50,51]. Two bands observed at 741 and 826 cm -1 were assigned to out-of-plane ring C−H bending [19,46].…”

“…Moreover, as Cu-BTC NPs covered the entire surface of Cu-BTC/GO nanocomposites (see FESEM and FTIR discussions), Raman spectroscopy can be a versatile and effective tool to study the structure, defects status, and functionalities of GO nanosheets in synthesized Cu-BTC/GO nanocomposites [49]. Main Raman bands of synthesized Cu-BTC NPs at 177 (*), 273 (⁑), 499 (⁂), 664 (⁖), 741 (⁘), 826 (⁙), 1003 (⁜), 1459, 1548 and 1611 cm -1 completely confirm the successful formation of Cu-BTC with the mesoporous structure [50,51]. Raman bands at 177 and 273 cm -1 can be assigned to the Cu-Cu dimer moieties [51].…”

“…Main Raman bands of synthesized Cu-BTC NPs at 177 (*), 273 (⁑), 499 (⁂), 664 (⁖), 741 (⁘), 826 (⁙), 1003 (⁜), 1459, 1548 and 1611 cm -1 completely confirm the successful formation of Cu-BTC with the mesoporous structure [50,51]. Raman bands at 177 and 273 cm -1 can be assigned to the Cu-Cu dimer moieties [51]. In addition, the bands at 500 and 664 cm -1 were related to the stretching modes of Cu-O coordination bond, and Cu2O bonding, respectively [46,50,51].…”

Recent Advancement in Metal‐Organic Framework for Water Electrolysis: A Review

“…Therefore, catalysts activity for the HER is measured by mainly t.hree parameters (overpotential, Tafel slope and stability). [139][140][141][142][143][144][145][146][147][148][149][150][151][152][153][154][155] A list of HER MOF along with their electrochemical activity is presented in the Table 4, however, some superlative achievements are discussed here.…”