Composites Communications, Journal Year: 2024, Volume and Issue: 50, P. 102014 - 102014
Published: July 22, 2024
Language: Английский
Composites Communications, Journal Year: 2024, Volume and Issue: 50, P. 102014 - 102014
Published: July 22, 2024
Language: Английский
ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 8, 2025
The strategic design and fabrication of efficient electrocatalysts are pivotal for advancing the field electrochemical water splitting (EWS). To enhance EWS performance, integrating non-noble transition metal catalysts through a cooperative double incorporation strategy is important offers compelling alternative to conventional precious metal-based materials. This study introduces novel, straightforward, single-step process fabricating bimetallic MoCo catalyst integrated within three-dimensional (3D) nanoporous network N, P-doped carbon nitride derived from self-contained precursor. subsequent carbonization at 550 °C yields highly effective phosphide electrocatalyst, denoted as MoCoPCN, tailored explicitly EWS. MoCoPCN electrocatalyst demonstrates exceptional electrocatalytic with low onset potential 1.43 V an overpotential value 202 mV current density 10 mA/cm2 oxygen evolution reaction (OER) 49.5 hydrogen (HER), respectively. Moreover, exhibits high electrochemically active surface area 2720 cm–2, small Tafel slope 47.5 dec–1 HER 45.7 OER, charge transfer resistance 0.09 Ω 0.805 OER. optimal was tested overall performance in 1 M KOH electrolyte, demonstrating excellent efficiency cell voltage 1.49 required achieve mA/cm2. These outstanding characteristics, combined synergistic effects arising interaction between P-g-C3N4 (PCN), underscore material promising splitting.
Language: Английский
Citations
1Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(46)
Published: Aug. 9, 2024
Abstract Heterogeneous dual‐site electrocatalysts are emerging cutting‐edge materials for efficient electrochemical water splitting. However, the corresponding oxygen evolution reaction (OER) mechanism on these is still unclear. Herein, based a series of in situ spectroscopy experiments and density function theory (DFT) calculations, new heterogeneous O−O bridging (DSBM) proposed. This to elucidate sequential appearance dual active sites through construction (hybrid ions undergo reconstruction initially), determine crucial role hybrid this (with Ni preferentially adsorbing hydroxyls catalysis followed by proton removal at Fe sites), assess impact bond formation activation state (inducing orderliness activated water), investigate universality Co doping Ni(P 4 O 11 )). Under guidance mechanism, with Fe−Ni(P ) as pre‐catalyst, formed Fe−Ni(OH) 2 electrocatalyst has reached record‐low overpotential 156.4 mV current 18.0 mA cm −2 . Successfully constructed )/Ti uplifting overall efficacy phosphate from moderate superior, positioning it an innovative highly proficient OER.
Language: Английский
Citations
7Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(52)
Published: Dec. 16, 2024
Inflammatory bowel disease (IBD) is often associated with excessive inflammatory response and highly dysregulated gut microbiota. Traditional treatments utilize drugs to manage inflammation, potentially probiotic therapy as an adjuvant. However, current standard practices suffer from detrimental side effects, low bioavailability, unsatisfactory therapeutic outcomes. Microbial complexes characterized by mutually beneficial symbiosis hold great promise for IBD therapy. Here, we aggregated Synechocystis sp. PCC6803 (Sp) Bacillus subtilis (BS) biomimetic mineralization form cyanobacteria–probiotics symbionts (ASp@BS), which reshaped a healthy immune system microbiota in murine model of acute colitis. The exhibited excellent tolerance the harsh environment gastrointestinal tract. Importantly, probiotics within created local anaerobic activate [NiFe]-hydrogenase enzyme cyanobacteria, facilitating production hydrogen gas (H 2 ) persistently scavenge elevated reactive oxygen species alleviate factors. resulting reduced inflammation improves viability efficiently regulate reshape intestinal barrier functions. Our research elucidates that ASp@BS leverages synergistic interaction between Sp BS create platform addresses multiple aspects IBD, offering promising comprehensive solution treatment.
Language: Английский
Citations
4Microbiological Research, Journal Year: 2025, Volume and Issue: unknown, P. 128149 - 128149
Published: March 1, 2025
Language: Английский
Citations
0Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(46)
Published: Aug. 9, 2024
Abstract Heterogeneous dual‐site electrocatalysts are emerging cutting‐edge materials for efficient electrochemical water splitting. However, the corresponding oxygen evolution reaction (OER) mechanism on these is still unclear. Herein, based a series of in situ spectroscopy experiments and density function theory (DFT) calculations, new heterogeneous O−O bridging (DSBM) proposed. This to elucidate sequential appearance dual active sites through construction (hybrid ions undergo reconstruction initially), determine crucial role hybrid this (with Ni preferentially adsorbing hydroxyls catalysis followed by proton removal at Fe sites), assess impact bond formation activation state (inducing orderliness activated water), investigate universality Co doping Ni(P 4 O 11 )). Under guidance mechanism, with Fe−Ni(P ) as pre‐catalyst, formed Fe−Ni(OH) 2 electrocatalyst has reached record‐low overpotential 156.4 mV current 18.0 mA cm −2 . Successfully constructed )/Ti uplifting overall efficacy phosphate from moderate superior, positioning it an innovative highly proficient OER.
Language: Английский
Citations
3Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1002, P. 175328 - 175328
Published: Oct. 1, 2024
Language: Английский
Citations
2Composites Communications, Journal Year: 2024, Volume and Issue: 50, P. 102014 - 102014
Published: July 22, 2024
Language: Английский
Citations
2