Design of modified MOFs electrocatalysts for water splitting: High current density operation and long-term stability

Zhang, Yangping; Zheng, Xiangjun; Guo, Xingmei; Zhang, Junhao; Yuan, Aihua; Du, Yukou; Gao, Fei

doi:10.1016/j.apcatb.2023.122891

Cited by 64 publications

(17 citation statements)

References 159 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…55,56 The enhanced CO tolerance could be attributed to the outstanding properties of Pd 20 Bi/CC with an excellent and stable structure. 57,58 More importantly, the incorporation of Bi species not only promote the formation of a stable structure but can also greatly facilitate the formation of adsorbed OH species, leading to the significantly enhanced EOR performance (Figure 6e and Table S1).…”

Section: Resultsmentioning

confidence: 99%

“…Figure f,g exhibit that the d-band center of Pd 20 Bi/CC composites (−2.22 eV) shifts to a lower position compared to pure Pd (−1.82 eV), indicating the decreased CO adsorption on Pd 20 Bi/CC. As a result, the results indicate that the Pd 20 Bi/CC catalyst can effectively accelerate the oxidative removal of CO instead of being poisoned. , The enhanced CO tolerance could be attributed to the outstanding properties of Pd 20 Bi/CC with an excellent and stable structure. , More importantly, the incorporation of Bi species not only promote the formation of a stable structure but can also greatly facilitate the formation of adsorbed OH species, leading to the significantly enhanced EOR performance (Figure e and Table S1).…”

Section: Results and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Electrodeposition-Assisted Crystal Growth Regulation of PdBi Clusters on Carbon Cloths for Ethanol Oxidation

Ge,

Huang,

Tian

et al. 2023

Inorg. Chem.

View full text Add to dashboard Cite

Carbon-supported Pd-based clusters are one of the most promising anodic catalysts for ethanol oxidation reaction (EOR) due to their encouraging activity and practical applications. However, unclear growth mechanism of Pd-based clusters on the carbon-based materials has hindered their extensive applications. Herein, we first introduce multi-void spherical PdBi cluster/carbon cloth (PdBi/CC) composites by an electrodeposition routine. The growth mechanism of PdBi clusters on the CC supports has been systemically investigated by evaluating the selected samples and tuning their compositions, which involve the big difference in standard redox potential between Pd 2+ /Pd and Bi 3+ /Bi and easy adsorption of Bi 3+ on the surface of Pd-rich seeds. Benefitting from the ensembles of many nanocrystal subunits, multi-void spherical PdBi clusters can present collective properties and novel functionalities. In addition, the outstanding characteristics of CC supports enable PdBi clusters with stable nanostructures. Thanks to the unique structure, Pd 20 Bi/CC catalysts manifest higher EOR activity and better stability compared to Pd/CC. Systematic characterizations and a series of CO poisoning tests further confirm that the dramatically enhanced EOR activity and stability can be attributed to the incorporation of Bi species and the strong coupling of the structure between PdBi clusters and CC supports.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Results and Discussionmentioning

confidence: 99%

Electrodeposition-Assisted Crystal Growth Regulation of PdBi Clusters on Carbon Cloths for Ethanol Oxidation

Ge,

Huang,

Tian

et al. 2023

Inorg. Chem.

View full text Add to dashboard Cite

show abstract

“…In summary, these methodologies should be appropriately utilized to provide vital insights into the morphology, structure, electrical characteristics, chemical stability, and dynamic behavior of catalysts in water splitting, as well as optimize their performance. 216…”

Section: Challenges and Perspectives In Water Splitting Under Industr...mentioning

confidence: 99%

Non-precious metal-based catalysts for water electrolysis to produce H₂ under industrial conditions

Liu¹,

Guang²,

Cheng³

et al. 2023

Mater. Chem. Front.

View full text Add to dashboard Cite

show abstract

“…Cao et al showed OER and ORR activities of metal-corrole-based POP . There are other examples, where researchers have put efforts into designing some noble metal-based catalysts. − In our recent efforts to explore the catalytic activity of porphyrin-based polymers, we have reported a urea oxidation reaction (UOR) and nonenzymatic glucose sensing using metal-incorporated porphyrin-based polymers.…”

Section: Introductionmentioning

confidence: 99%

Ni(II)-Incorporated Ethylene Glycol-Linked Tetraphenyl Porphyrin-Based Covalent Organic Polymer as a Catalyst for Methanol Electrooxidation

Bhaduri,

Ghosh,

Chatterjee

et al. 2023

Inorg. Chem.

View full text Add to dashboard Cite

Methanol oxidation reaction (MOR) is a perfect alternative to the conventional oxygen evolution reaction (OER), generally utilized as the anode reaction for hydrogen generation via the electrochemical water splitting method. Moreover, MOR is also relevant to direct methanol fuel cells (DMFCs). These facts motivate the researchers to develop economical and efficient electrocatalysts for MOR. Herein, we have introduced an ethylene glycol-linked tetraphenyl porphyrin-based (EG-POR) covalent organic polymer (COP). The Ni(II)-incorporated EG-POR material Ni-EG-POR displayed excellent OER and MOR activities in an alkaline medium. The materials were thoroughly characterized using 13C solid-state NMR, Fourier transform infrared spectroscopy (FT-IR), Brunauer–Emmett–Teller (BET) surface area analyzer, X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), thermogravimetric analyzer (TGA), and powder X-ray diffraction (PXRD) techniques. These organic–inorganic hybrid materials showed high chemical and thermal stability. Ni-EG-POR requires an overpotential of 400 mV (vs RHE) in OER and 190 mV (vs RHE) in MOR to achieve a current density of 10 mA cm–2. In addition, the catalyst also showed excellent chronoamperometric and chronopotentiometric stability, indicating that the catalyst can provide stable current over a longer period and its potential as a non-noble metal MOR catalyst.

show abstract

Design of modified MOFs electrocatalysts for water splitting: High current density operation and long-term stability

Cited by 64 publications

References 159 publications

Electrodeposition-Assisted Crystal Growth Regulation of PdBi Clusters on Carbon Cloths for Ethanol Oxidation

Electrodeposition-Assisted Crystal Growth Regulation of PdBi Clusters on Carbon Cloths for Ethanol Oxidation

Non-precious metal-based catalysts for water electrolysis to produce H₂ under industrial conditions

Ni(II)-Incorporated Ethylene Glycol-Linked Tetraphenyl Porphyrin-Based Covalent Organic Polymer as a Catalyst for Methanol Electrooxidation

Contact Info

Product

Resources

About

Design of modified MOFs electrocatalysts for water splitting: High current density operation and long-term stability

Cited by 64 publications

References 159 publications

Electrodeposition-Assisted Crystal Growth Regulation of PdBi Clusters on Carbon Cloths for Ethanol Oxidation

Electrodeposition-Assisted Crystal Growth Regulation of PdBi Clusters on Carbon Cloths for Ethanol Oxidation

Non-precious metal-based catalysts for water electrolysis to produce H2 under industrial conditions

Ni(II)-Incorporated Ethylene Glycol-Linked Tetraphenyl Porphyrin-Based Covalent Organic Polymer as a Catalyst for Methanol Electrooxidation

Contact Info

Product

Resources

About

Non-precious metal-based catalysts for water electrolysis to produce H₂ under industrial conditions