ZIF-67-derived nanoframes as efficient bifunctional catalysts for overall water splitting in alkaline medium

Liao, Wenhao; Tong, Xianfeng; Zhai, Yali; Dai, Jiang; Fu, Yan; Qian, Min; Wu, Geng; Chen, Tianyun; Yang, Qinghua

doi:10.1039/d2dt00828a

Cited by 3 publications

(1 citation statement)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hydrogen (H 2 ) plays a crucial role in the future sustainable energy. − However, most H 2 is obtained by conventional hydrogen production via the steam reforming process, which would provoke the large-scale use of fossil fuels and aggravate greenhouse gas emissions. , Accordingly, overall water splitting powered by renewable energy has been considered a significant technology for the production of clear H 2 . − Recently, a promising strategy to resolve the insufficient conversion efficiency and sluggish catalytic kinetics of electrode materials for water splitting is to develop advanced electrodes with appropriate structures and highly active electrocatalysts. Until now, Pt-based materials, owing to their appropriate H* adsorption energy, have received significant attention as hydrogen evolution reaction (HER) electrocatalysts. − However, the large-scale application of Pt-based electrocatalysts is hindered by the exorbitant price and scarcity. Thus, developing novel materials, which served as substitutes for Pt-based catalysts, would be considered a promising strategy to accomplish potential clean-energy technologies. − Ru-based electrocatalysts, owing to their significant potential in HER and low cost equal to only 4% Pt, have been potential alternatives for replacing Pt-based electrodes. − However, the poor chemical stability of metallic Ru for its high dissolution rate in acidic and alkaline solutions needs to be resolved for further application …”

Section: Introductionmentioning

confidence: 99%

Ultrafine Ruthenium-Embedded P-Doped Carbon Materials as Bifunctional Catalysts for Solar-Assistant Water Splitting

Shen

肖杨

et al. 2023

Energy Fuels

View full text Add to dashboard Cite

The development of advanced bifunctional electrodes with high activity and durability is essential for the development of simplified overall water-splitting systems. Herein, we report ruthenium-based P-doped carbon (RuO x /P–C) hybrids as high bifunctional activity catalysts, where lignin and phytic acid were used as C and P sources, respectively, to form lignin–phytic acid networks via complexation and electrostatic interaction. The resulting RuO x /P–C catalysts exhibit enhanced catalytic performance for solar-assistant water splitting. For the hydrogen evolution reaction (HER), RuO x /P–C achieves low onset potentials of 24 mV (1.0 M H2SO4) and 30 mV (1.0 M KOH) at 10 mA cm–2, as well as small Tafel slopes of 33 and 30 mV dec–1, respectively. For the PEC cell, RuO x /P–C/W:BiVO achieves a photocurrent of 1.08 mA cm–2 at 1.23 V, which is 1.3 times higher than that of pristine W:BiVO. The above results are attributable to the synergistic coupling effects among active species.

show abstract

Section: Introductionmentioning

confidence: 99%

Ultrafine Ruthenium-Embedded P-Doped Carbon Materials as Bifunctional Catalysts for Solar-Assistant Water Splitting

Shen

肖杨

et al. 2023

Energy Fuels

View full text Add to dashboard Cite

show abstract

ZIF67-derived Co–CoO@C nanocomposites as highly efficient and selective oxygen evolution reaction (OER) catalysts for seawater electrolysis

Fathima T.K.,

Ghosh,

Ramaprabhu

2024

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

Metallocavitins as Advanced Enzyme Mimics and Promising Chemical Catalysts

Shteinman

2023

Catalysts

View full text Add to dashboard Cite

The supramolecular approach is becoming increasingly dominant in biomimetics and chemical catalysis due to the expansion of the enzyme active center idea, which now includes binding cavities (hydrophobic pockets), channels and canals for transporting substrates and products. For a long time, the mimetic strategy was mainly focused on the first coordination sphere of the metal ion. Understanding that a highly organized cavity-like enzymatic pocket plays a key role in the sophisticated functionality of enzymes and that the activity and selectivity of natural metalloenzymes are due to the effects of the second coordination sphere, created by the protein framework, opens up new perspectives in biomimetic chemistry and catalysis. There are two main goals of mimicking enzymatic catalysis: (1) scientific curiosity to gain insight into the mysterious nature of enzymes, and (2) practical tasks of mankind: to learn from nature and adopt from its many years of evolutionary experience. Understanding the chemistry within the enzyme nanocavity (confinement effect) requires the use of relatively simple model systems. The performance of the transition metal catalyst increases due to its retention in molecular nanocontainers (cavitins). Given the greater potential of chemical synthesis, it is hoped that these promising bioinspired catalysts will achieve catalytic efficiency and selectivity comparable to and even superior to the creations of nature. Now it is obvious that the cavity structure of molecular nanocontainers and the real possibility of modifying their cavities provide unlimited possibilities for simulating the active centers of metalloenzymes. This review will focus on how chemical reactivity is controlled in a well-defined cavitin nanospace. The author also intends to discuss advanced metal–cavitin catalysts related to the study of the main stages of artificial photosynthesis, including energy transfer and storage, water oxidation and proton reduction, as well as highlight the current challenges of activating small molecules, such as H2O, CO2, N2, O2, H2, and CH4.

show abstract

ZIF-67-derived nanoframes as efficient bifunctional catalysts for overall water splitting in alkaline medium

Abstract: It is critical for lowering energy consumption to develop highly efficient and stable non-precious metal bifunctional catalyst. In this study, we found that rational design of novel nanostructures is able...

Cited by 3 publications

References 53 publications

Ultrafine Ruthenium-Embedded P-Doped Carbon Materials as Bifunctional Catalysts for Solar-Assistant Water Splitting

Ultrafine Ruthenium-Embedded P-Doped Carbon Materials as Bifunctional Catalysts for Solar-Assistant Water Splitting

ZIF67-derived Co–CoO@C nanocomposites as highly efficient and selective oxygen evolution reaction (OER) catalysts for seawater electrolysis

Metallocavitins as Advanced Enzyme Mimics and Promising Chemical Catalysts

Contact Info

Product

Resources

About