Next Materials, Journal Year: 2025, Volume and Issue: 8, P. 100555 - 100555
Published: Feb. 21, 2025
Language: Английский
Next Materials, Journal Year: 2025, Volume and Issue: 8, P. 100555 - 100555
Published: Feb. 21, 2025
Language: Английский
Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(41), P. 28023 - 28031
Published: Jan. 1, 2024
Dual-doped ruthenium-based nanocrystals were developed as efficient and stable electrocatalysts for acidic overall seawater splitting with superior activity durability.
Language: Английский
Citations
40Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Aug. 16, 2024
Abstract Urea electrosynthesis from co‐electrolysis of CO 2 and NO 3 − (UECN) offers an innovative route for converting waste /NO into valuable urea. Herein, Zn single atoms anchored on oxygen vacancy (OV)‐rich In O 3‐x (Zn 1 /In ) are developed as a highly active selective UECN catalyst, delivering the highest urea yield rate 41.6 mmol h −1 g urea‐Faradaic efficiency 55.8% at −0.7 V in flow cell, superior to most previously reported catalysts. situ spectroscopic measurements theoretical calculations unveil synergy In/Zn sites OVs promoting process via tandem catalysis mechanism, where ‐OV site activates form * NH while In‐OV CO. The formed spontaneously migrates nearby then couples with generate CONH which is ultimately converted
Language: Английский
Citations
38Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(43)
Published: Aug. 16, 2024
Abstract Urea electrosynthesis from co‐electrolysis of NO 3 − and CO 2 (UENC) under ambient conditions is recognized as an appealing approach for effective sustainable urea production, while it requires high‐efficiency UENC electrocatalysts to promote the C─N coupling hydrogenation processes. Herein, single‐atom Cu anchored on MoS (Cu 1 ‐MoS ) explored a highly active selective catalyst. Theoretical calculations operando spectroscopic characterizations unveil synergistic tandem catalysis UENC, where single atoms trigger early coupling, ‐edges key step * NH COOHNH generation. Strikingly, equipped in flow cell achieves excellent performance with maximum urea‐Faradaic efficiency 57.02% at −0.6 V corresponding yield rate 23.3 mmol h −1 g , surpassing nearly all previously reported catalysts.
Language: Английский
Citations
19ACS Nano, Journal Year: 2024, Volume and Issue: 18(36), P. 25316 - 25324
Published: Aug. 26, 2024
Urea electrosynthesis from coelectrolysis of NO
Language: Английский
Citations
18Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 157207 - 157207
Published: Oct. 1, 2024
Language: Английский
Citations
18ACS Catalysis, Journal Year: 2024, Volume and Issue: unknown, P. 18095 - 18106
Published: Nov. 22, 2024
Language: Английский
Citations
18Small, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 7, 2025
The construction of coupled electrolysis systems utilizing renewable energy sources for electrocatalytic nitrate reduction and sulfion oxidation reactions (NO3RR SOR), is considered a promising approach environmental remediation, ammonia production, sulfur recovery. Here, simple chemical dealloying method reported to fabricate hierarchical porous multi-metallic spinel MFe2O4 (M═Ni, Co, Fe, Mn) dual-functional electrocatalysts consisting Mn-doped NiFe2O4/CoFe2O4 heterostructure networks Ni/Co/Mn co-doped Fe3O4 nanosheet networks. excellent NO3RR with high NH3 Faradaic efficiency 95.2% at -0.80 V versus reversible hydrogen electrode (vs RHE) yield rate 608.9 µmol h-1 cm-2 -1.60 vs RHE, impressive SOR performance (100 mA [email protected] achieved MFe2O4. Key intermediates such as *NO, *NH2, are identified in the process by situ Fourier transform infrared spectroscopy (in FTIR). MFe2O4-assembled two-electrode coupling system (NO3RR||SOR) shows an ultra-low cell voltage 1.14 10 cm-2, much lower than NO3RR||OER (oxygen evolution reaction, [email protected] V), simultaneously achieving two expected targets value-added generation recovery, also demonstrating durability 18 h. This work demonstrates great potential ferrite-based catalysts remediation.
Language: Английский
Citations
4Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown
Published: March 4, 2025
Electrocatalyzed reduction of CO2 and NO3- to synthesize urea is a highly desirable, but challenging reaction. The bottleneck this reaction the C-N coupling intermediates. In particular, uncertainty multielectron intermediates severely affects selectivity activity processes involving multiple electron proton transfers. Here, we present novel tandem catalyst with two compatible single-atom active sites Au Cu on red phosphorus (RP-AuCu) that efficiently converts urea. Experimental theoretical prediction results confirmed center promotes transfer between molecules phosphorus, thereby regulating activation produce electrophilic *COOH. addition, can enhance attack *COOH species *NH2, thus promoting selective formation bonds. Consequently, RP-AuCu exhibited yield 22.9 mmol gcat.-1 h-1 Faraday efficiency 88.5% (-0.6 VRHE), representing one highest levels electrocatalytic synthesis. This work deepens understanding mechanism provides an interesting design approach for efficient sustainable production compounds.
Language: Английский
Citations
4Nanoscale, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
We have designed a catalyst that can efficiently convert CO 2 into through Zn–CO batteries and the electrochemical RR, addressing both energy conversion environmental concerns simultaneously.
Language: Английский
Citations
2Communications Chemistry, Journal Year: 2025, Volume and Issue: 8(1)
Published: Feb. 3, 2025
Electrochemical synthesis routes powered by renewable electricity can provide sustainable chemical commodities replacing conventional fossil-based processes. Increasing research focuses on value-added chemicals like the indispensable fertilizer urea, which also constitutes a study case for electrochemical CN-coupling. To guide identification of highly selective catalysts, we aim to new insight analysing existing experimental data selectivity transition metal catalysts towards electrochemically synthesized urea. Firstly, project high dimensional using principal component analysis (PCA) lower dimensions, and thereby confirm that urea is correlated with CO NH3. Furthermore, identified most suitable two-dimensional descriptors prediction out various adsorption energies calculated density functional theory (DFT). We suggest *H *O slabs predict in co-reduction CO2 nitrite ( NO2- ).
Language: Английский
Citations
2