Science China Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: March 5, 2025
Language: Английский
Chemical Communications, Journal Year: 2024, Volume and Issue: 60(66), P. 8728 - 8731
Published: Jan. 1, 2024
Herein, we show that P-doped Ti
Language: Английский
Citations
21
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown
Published: July 16, 2024
Electrochemical nitrate reduction method (NitRR) is a low-carbon, environmentally friendly, and efficient for synthesizing ammonia, which has received widespread attention in recent years. Copper-based catalysts have leading edge due to their good adsorption of *NO
Language: Английский
Citations
20
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(50)
Published: Aug. 13, 2024
Abstract Deeply electrolytic reduction of carbon dioxide (CO 2 ) to high‐value ethylene (C H 4 is very attractive. However, the sluggish kinetics C−C coupling seriously results in low selectivity CO electroreduction C . Herein, we report a copper‐based polyhedron (Cu2) that features uniformly distributed and atomically precise bi‐Cu units, which can stabilize *OCCO dipole facilitate for high selective production. The faradaic efficiency (FE) reaches 51 % with current density 469.4 mA cm −2 , much superior Cu single site catalyst (Cu SAC) (~0 %). Moreover, Cu2 has higher turnover frequency (TOF, ~520 h −1 compared nanoparticles (~9.42 SAC (~0.87 ). In situ characterizations theoretical calculations revealed unique structural configuration could optimize moments adsorbate promote generation
Language: Английский
Citations
19
ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(14), P. 10437 - 10446
Published: June 26, 2024
Converting nitrate (NO3–) to ammonia (NH3) through the electrochemical reduction method offers an appealing approach for wastewater treatment and facilitates nitrogen cycling in nature. However, this electrolytic involves a series of proton-coupled electron transfer processes comes with severe competing reactions. Consequently, there is significant demand catalysts exhibiting good catalytic activities selectivities. Here, copper–cobalt binary sulfide nanosheets varying Cu/Co compositions were prepared investigate synergy effects between components copper cobalt on their performance. As result, volcano-like correlation ratio electrocatalytic performance was built. The optimal catalyst CuxS–Co0.5 exhibited maximum Faradaic efficiency (FE) ∼95.6% at −1.4 V vs Ag/AgCl. highest yield rate 5.36 mg/h·cm2 achieved −1.6 Ag/AgCl, which 6.5- 3.8-fold relative those pure CuxS CoS2, respectively. By combining spectroscopy characterizations theoretical calculations, we revealed that built-in electric field confined few nanometers played critical role enhancing creating more active sites. Besides, its improved water dissociation capability essential hydrogenation intermediates, collectively contributing enhanced
Language: Английский
Citations
17
Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 528, P. 216426 - 216426
Published: Jan. 10, 2025
Language: Английский
Citations
6
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 19, 2025
Abstract Numerous in situ characterization studies have focused on revealing the catalytic mechanisms of single‐atom catalysts (SACs), providing a theoretical basis for their rational design. Although research is relatively limited, stability SACs under long‐term operating conditions equally important and prerequisite real‐world energy applications, such as fuel cells water electrolyzers. Recently, there has been rise destabilization regeneration SACs; however, timely comprehensive summaries that provide catalysis community with valuable insights directions are still lacking. This review summarizes recent advances strategies SACs, specifically highlighting various state‐of‐the‐art techniques employed studies. The factors induce identified by discussing failure active sites, coordination environments, supports, reaction scenarios. Next, primary introduced, including redispersion, surface poison desorption, exposure subsurface sites. Additionally, advantages limitations both ex discussed. Finally, future proposed, aimed at constructing structure–stability relationships guiding design more stable SACs.
Language: Английский
Citations
4
Nano Research, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 17, 2024
Language: Английский
Citations
13
Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(43)
Published: July 16, 2024
Abstract Electrochemical nitrate reduction method (NitRR) is a low‐carbon, environmentally friendly, and efficient for synthesizing ammonia, which has received widespread attention in recent years. Copper‐based catalysts have leading edge due to their good adsorption of *NO 3 . However, the formation active hydrogen (*H) on Cu surfaces difficult insufficient, resulting large amount by‐product NO 2 − In this work, Pd single atoms suspended interlayer unsaturated bonds CuO formed dislocations (Pd−CuO) were prepared by low temperature treatment, located subjected shear stress dynamic effect support promote conversion into ammonia. The catalysis had an ammonia yield 4.2 mol. g cat −1 h , Faraday efficiency 90 % production at −0.5 V vs. RHE. situ characterization theoretical calculations indicate that effects carriers under obviously hydrogen, reduce reaction energy barrier decision‐making step further generation.
Language: Английский
Citations
10
Nano Letters, Journal Year: 2024, Volume and Issue: 24(35), P. 10928 - 10935
Published: Aug. 20, 2024
Single-atom Rh
Language: Английский
Citations
8
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 2, 2025
Abstract Catalysis remains a cornerstone of chemical research, with the active sites catalysts being crucial for their functionality. Identifying sites, particularly during reaction process, is elucidating relationship between catalyst's structure and its catalytic property. However, dynamic evolution within heterogeneous metal presents substantial challenge accurately pinpointing real sites. The advent in situ operando characterization techniques has illuminated path toward understanding changes offering robust scientific evidence to support rational design catalysts. There pressing need comprehensive review that systematically explores among single atoms, clusters, nanoparticles as utilizing techniques. This aims delineate effects various factors on nanoparticles. Moreover, several are elaborated emphases tracking linking them properties. Finally, it discusses challenges future perspectives identifying process advancing
Language: Английский
Citations
1