Sulfur-doping tunes p-d orbital coupling over asymmetric Zn-Sn dual-atom for boosting CO2 electroreduction to formate

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 5, 2025

The interaction of p-d orbitals at bimetallic sites plays a crucial role in determining the catalytic reactivity, which facilitates modulation charges and enhances efficiency CO2 electroreduction process. Here, we show ligand co-etching approach to create asymmetric Zn-Sn dual-atom (DASs) within metal-organic framework (MOF)-derived yolk-shell carbon frameworks (named Zn1Sn1/SNC). DASs comprise one Sn center (p-block) partially doped with sulfur Zn (d-block) N coordination, facilitating coupling between dimer. N-Zn-Sn-S/N arrangement displays an distribution atoms, leading stable adsorption configuration HCOO* intermediates. In H-type cell, Zn1Sn1/SNC exhibits impressive formate Faraday 94.6% -0.84 V. flow electronic architecture high accessibility, current density -315.2 mA cm-2 -0.90 Theoretical calculations ideal affinity lower reduction barrier, thus improve overall reduction.

Language: Английский

---

Research progress of amorphous catalysts in the field of electrocatalysis

Microstructures, Journal Year: 2024, Volume and Issue: 4(2)

Published: April 17, 2024

Amorphous materials feature unique structures and physicochemical properties, resulting in their synthesis applications becoming a dynamic fascinating new research direction. The high specific surface area, abundant active sites, good electron transport properties endow amorphous with excellent electrocatalytic thus appealing to increasing attention. Based on this, the summary of current status catalysts field electrocatalysis is urgent important. In this review, progress systematically introduced, focusing classification, methods, modification strategies, characterizations, application (including hydrogen evolution reaction, oxygen reduction carbon dioxide nitrogen reaction). Finally, review proposes prospects challenges for future development high-active high-selectivity electrocatalysts.

Language: Английский

---

Oxygen Vacancy and Bandgap Simultaneous Modulation to Achieve High Lithiophilicity and Mechanical Strength of Lithium Metal Anodes

Small, Journal Year: 2024, Volume and Issue: 20(29)

Published: Feb. 27, 2024

Abstract Metal oxides with conversion and alloying mechanisms are more competitive in suppressing lithium dendrites. However, it is difficult to simultaneously regulate the reactions. Herein, reactions regulated by modulation of zinc oxide bandgap oxygen vacancies. State‐of‐the‐art advanced characterization techniques from a microcosmic macrocosmic viewpoint, including neutron diffraction, synchrotron X‐ray absorption spectroscopy, microtomography, nanoindentation, ultrasonic C‐scan demonstrated electrochemical gain benefit plentiful vacancies low bandgaps due doping strategies. In addition, high mechanical strength 3D morphology abundant mesopores assist uniform distribution ions. Consequently, best‐performed ZnO‐2 offers impressive properties, symmetric Li cells 2000 h full 81% capacity retention after 600 cycles. addition providing promising strategy for improving lithiophilicity metal anodes, this work also sheds light on batteries practical applications.

Language: Английский

---

Construction of a novel ternary synergistic CuFe₂O₄–SnO₂-rGO heterojunction for efficient removal of cyanide from contaminated water

RSC Advances, Journal Year: 2024, Volume and Issue: 14(20), P. 13850 - 13861

Published: Jan. 1, 2024

Many industrial effluents release cyanide, a well-known hazardous and bio-recalcitrant pollutant, thus, the treatment of cyanide wastewater is major challenge.

Language: Английский

---

In situ redox growth of Pd/CuOx for enhanced electrocatalytic degradation of organic chlorides via indirect atomic H* reduction

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 356, P. 124252 - 124252

Published: May 28, 2024

Language: Английский

---

Research progress on carbon-based anode materials for sodium-ion batteries

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 107, P. 114977 - 114977

Published: Dec. 9, 2024

Language: Английский

---

Three-dimensional porous carbon nanofibers scaffold to homogenize sodium deposition for dendrite-free sodium metal batteries

Journal of Porous Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Language: Английский

---

Nb atom-mediated activation and strong homogeneous coupling of amorphous Mo-N clusters boosting sodium-ion storage

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 507, P. 160367 - 160367

Published: Feb. 6, 2025

Language: Английский

---

Closed Pore Engineering of Hard Carbons Toward Remarkable Sodium-Ion Storage

Published: Jan. 1, 2025

Language: Английский

---

Tuning Bi–C 3D architecture of Bi/carbon nanofibres for high power and cycling stability SIBs anodes

Surface Innovations, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 9

Published: March 10, 2025

Carbon-based materials are frequently employed as anodes for sodium-ion batteries (SIBs) due to their structural stability. This stability enables them withstand the repeated intercalation and de-intercalation of Na + during charge-discharge cycles without significant deformation or performance degradation, thus ensuring long-term operation SIBs. However, high energy density power have been goals Herein, an electrode material combining bismuth (Bi) carbon nanofibres (CNFs) was prepared. Bi sputtered on CNFs in form nanodots. CNFs-50Bi has a initial coulombic efficiency 98.31% at 0.1 A/g superior rate capability 186 mAh/g anode 3 A/g. mitigate volume expansion alloying maintain The incorporation metal into battery configuration serves augment overall capacity enhance capability. Therefore, doping suitable quantities may facilitate development high-performance carbonaceous

Language: Английский

---