Highly selective electrochemical reduction of carbon dioxide using Cu based metal organic framework as an electrocatalyst

Electrocatalytic Metal–Organic Frameworks for Energy Applications

“…[Cu 3 (btc) 2 ], depositedo nG CEs by using Nafion as ab inder, was investigated for the CO 2 RR in 0.01 m tetrabutylammonium tetrafluoroborate/DMF solution by Kulandainathan and coworkers. [129] CPE at À2.5 Vv ersus Ag/Ag + results in the formation of oxalic acid, as confirmed by FTIR spectroscopy and GC-MS. The efficiency for the conversionw as 51 %.…”

“…[124,125] Copper-containing MOFs were investigated as electrocatalysts for CO 2 reduction,w ith selected examples presented here, attempting to improve the selectivity and efficiency for the highly reduced carbon products. [126][127][128][129] Confirmation of the structural stability of the MOF catalyst during electrocatalytic testing is crucial,b ecause heterogeneous copper is aw ell-established CO 2 reduction catalyst.…”

Fabrication of a Sensitive Sensor for Oxygen Using Nitrogen-Doped Carbon Nanotubes-Fe3C Nanoparticles

“…[3][4][5] Hence, batch synthesis of well-controlled and low-cost carbon composite ORR catalyst becomes one of the biggest present challenges in the field of preparation of non-precious metal ORR catalyst. [6][7][8][9][10][11][12][13][14][15][16][17][18] To date, there exists tremendous curiosity in exploring a simple method to prepare stable carbon composites from renewable biomass resources including soy milk, wood, bamboo, fruits, kenaf stem, egg white, and bacteria for potential applications in supercapacitor, energy storage, electroanalytical chemistry, and electrocatalyst. [19][20][21][22][23] It had been demonstrated a new one-step soft templateinduced strategy for the controlled synthesis of bamboo-like carbon nanotube/Fe 3 C nanoparticle (NP) hybrids through annealing a mixture of PEG-PPG-PEG Pluronic P123 (P123), melamine and Fe(NO 3 ) 3 at high temperaturet.…”

The Origin of the Electrocatalytic Activity for CO2 Reduction Associated with Metal‐Organic Frameworks

“…XRD analysisb efore and after immersing in acidic 0.5 m H 2 SO 4 solution for 6h shows instability of this MOF as reported by Qin et al [4d] Kumar et al established that the catalytic activity of Cu-BTC towards CO 2 RR in dimethylformamide containing 0.01 m tetrabutylammonium tetrafluoroborate is attributed to its reduction to aC u I species, which is stable under catalytic conditions. [6] More recently,A lbo et al advisedt hat aC u-BTC gas-diffusion electrode is stable in aqueous media for up to 17 ho nt he basis of the preservation of the local structure, althought hey observedg radual degradation of Cu-BTC using both attenuated total reflectance (ATR)-FTIR and XRD. [7] Some of the controversy related to the stabilityo fC u-BTC is likely to be associated with the use of XRD and FTIR methods for MOF materialc haracterization post electrolysis as the removal from the electrolyte solution might result in ac hange of the surface of the material on exposure to air or upon washing to remove electrolyte.…”

“…According to the SEM images, the as-synthesized Co-ZIF andZ n-ZIF MOFs both have well-defined rhombic dodecahedral shapes.H owever,t he morphologies of Cu-BTC and Zn-BTC are less well defined, which is consistent with literature reports. [6,7,10,11,13] The control of MOF morphology is not straightforward without using surfactantso rt emplates,b ut since this feature should not significantly influence electrochemicals tability,i tw as not deliberately controlled in this study.T he powder XRD patterns of all four MOFs of interesti n this study match well with their simulated patterns, thereby confirming good crystallinity and purity. Anodic stripping voltammetry is ah ighlys ensitive electrochemicalt echnique for the quantitative determination of trace metal ions in solution.…”