Structure and Activity Comparison of Cu/CeyZr1–yOx Series Catalysts in the Reverse Water–Gas Shift Reaction DOI
Nuo Xu, Jie Ren,

Hao Lou

et al.

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(8), P. 7158 - 7166

Published: April 2, 2024

Cu-based catalysts with abundant oxygen vacancies have attracted great attention for the reverse water–gas shift (RWGS) reaction because of their enhanced activity CO2 adsorption and activation. However, effect vacancy origin on mechanism RWGS are still unclear. Herein, various Cu/CeyZr1–yOx different Ce/Zr ratios were designed used RWGS, results showed that Cu/Ce0.9Zr0.1Ox catalyst exhibited highest conversion (57.5%) 100% CO selectivity. The characterization possessed highly dispersed Cu, vacancies, optimized basic sites, synergistic three factors led to stability. Both formate carbonate pathways been confirmed Cu/CeyZr1–yOx, while dominant path is between Cu/ZrO2 Cu/CeO2.

Language: Английский

An active, stable cubic molybdenum carbide catalyst for the high-temperature reverse water-gas shift reaction DOI
Milad Ahmadi Khoshooei, Xijun Wang, Gerardo Vitale

et al.

Science, Journal Year: 2024, Volume and Issue: 384(6695), P. 540 - 546

Published: May 2, 2024

Although technologically promising, the reduction of carbon dioxide (CO

Language: Английский

Citations

56
Biomimetic Design of a Dynamic M–O–V Pyramid Electron Bridge for Enhanced Nitrogen Electroreduction DOI
Yuntong Sun,

Xuheng Li,

Zhiqi Wang

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(11), P. 7752 - 7762

Published: March 6, 2024

Electrochemical nitrogen reduction reaction (eNRR) offers a sustainable route for ammonia synthesis; however, current electrocatalysts are limited in achieving optimal performance within narrow potential windows. Herein, inspired by the heliotropism of sunflowers, we present biomimetic design Ru-VOH electrocatalyst, featuring dynamic Ru–O–V pyramid electron bridge eNRR wide range. In situ spectroscopy and theoretical investigations unravel fact that electrons donated from Ru to V at lower overpotentials retrieved higher overpotentials, maintaining delicate balance between N2 activation proton hydrogenation. Moreover, adsorption were found be enhanced moiety. The catalyst showcases an outstanding Faradaic efficiency 51.48% −0.2 (vs RHE) with NH3 yield rate exceeding 115 μg h–1 mg–1 across range −0.4 RHE), along impressive durability over 100 cycles. This M–O–V is also applicable other metals (M = Pt, Rh, Pd).

Language: Английский

Citations

39
CO2 hydrogenation over Fe-Co bimetallic catalysts with tunable selectivity through a graphene fencing approach DOI Creative Commons
Jiaming Liang, Jiangtao Liu, Lisheng Guo

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Jan. 13, 2024

Abstract Tuning CO 2 hydrogenation product distribution to obtain high-selectivity target products is of great significance. However, due the imprecise regulation chain propagation and reactions, oriented synthesis a single challenging. Herein, we report an approach controlling multiple sites with graphene fence engineering that enables direct conversion /H mixtures into different types hydrocarbons. Fe-Co active on surface present 50.1% light olefin selectivity, while spatial nanoparticles separated by fences achieve liquefied petroleum gas 43.6%. With assistance fences, iron carbides metallic cobalt can efficiently regulate C-C coupling secondary reactions product-selective switching between olefins gas. Furthermore, it also creates precedent for via Fischer-Tropsch pathway highest space-time yields compared other reported composite catalysts.

Language: Английский

Citations

37
Emerging Strategies for the Synthesis of Correlated Single Atom Catalysts DOI
Yucong Huang, Jingjing Xiong, Zhigang Zou

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 9, 2024

Abstract People have been looking for an energy‐efficient and sustainable method to produce future chemicals decades. Heterogeneous single‐atom catalysts (SACs) with atomic dispersion of robust, well‐characterized active centers are highly desirable. In particular, correlated SACs cooperative interaction between adjacent single atoms allow the switching single‐site pathway dual or multisite pathway, thus promoting bimolecular more complex reactions synthesis fine chemicals. Herein, structural uniqueness SACs, including intermetal distance electronic in homo/heteronuclear metal sites is featured. Recent advances production methods showcasing research status challenges traditional (such as pyrolysis, wet impregnation, confined synthesis) building a comprehensive multimetallic SAC library, summarized. Emerging strategies such process automation continuous‐flow highlighted, minimizing inconsistency laboratory batch allowing high throughput screening upscaling toward next‐stage chemical by SACs.

Language: Английский

Citations

31
Green urea production for sustainable agriculture DOI
Chengliang Mao, Jaewon Byun,

Hamish W. MacLeod

et al.

Joule, Journal Year: 2024, Volume and Issue: 8(5), P. 1224 - 1238

Published: March 15, 2024

Language: Английский

Citations

29
Transforming CO2 to valuable feedstocks: Emerging catalytic and technological advances for the reverse water gas shift reaction DOI

Monica Louise T. Triviño,

Nomer C. Arriola,

You Seok Kang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 487, P. 150369 - 150369

Published: March 12, 2024

Language: Английский

Citations

25
Oxygen Doping Cooperated with Co‐N‐Fe Dual‐Catalytic Sites: Synergistic Mechanism for Catalytic Water Purification within Nanoconfined Membrane DOI Creative Commons
Ziwei Wang,

Zhigang Yi,

Lok Wing Wong

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(30)

Published: May 14, 2024

Abstract Atom‐site catalysts, especially for graphitic carbon nitride‐based represents one of the most promising candidates in catalysis membrane water decontamination. However, unravelling intricate relationships between synthesis‐structure–properties remains a great challenge. This study addresses impacts coordination environment and structure units metal central sites based on Mantel test, correlation analysis, evolution sites. An optimized unconventional oxygen doping cooperated with Co‐N‐Fe dual‐sites (OCN Co/Fe) exhibits synergistic mechanism efficient peroxymonosulfate activation, which benefits from significant increase charge density at active regulation natural population orbitals, leading to selective generation SO 4 •− . Building upon these findings, OCN‐Co/Fe/PVDF composite demonstrates 33 min −1 ciprofloxacin (CIP) rejection efficiency maintains over 96% CIP removal (over 24 h) an average permeance 130.95 L m −2 h work offers fundamental guide elucidating definitive origin catalytic performance advance oxidation process facilitate rational design separation improved enhanced stability.

Language: Английский

Citations

24
Immobilizing Pd nanoparticles on amine-functionalized yolk-shell mesoporous silica nanospheres for efficient H2 production from formic acid dehydrogenation DOI
Chunhui Zhou, Song Li, Hao Chai

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 346, P. 123750 - 123750

Published: Jan. 21, 2024

Language: Английский

Citations

16
Recent Advances in Hydrogenation of CO2 to CO with Heterogeneous Catalysts Through the RWGS Reaction DOI
Wenting Zhang, Jiashu Sun, Hongli Wang

et al.

Chemistry - An Asian Journal, Journal Year: 2024, Volume and Issue: 19(4)

Published: Jan. 27, 2024

Abstract With the continuous increase in CO 2 emissions, primarily from combustion of coal and oil, ecosystem faces a significant threat. Therefore, as an effective method to minimize issue, Reverse Water Gas Shift (RWGS) reaction which converts towards attracts much attention, is environmentally‐friendly mitigate climate change lessen dependence on fossil fuels. Nevertheless, inherent thermodynamic stability kinetic inertness big challenge under mild conditions. In addition, it remains another fundamental RWGS owing selectivity issue caused by further hydrogenation CH 4 . Up till now, series catalysis systems have been developed for reduction produce CO. Herein, research progress well‐performed heterogeneous catalysts were summarized, including catalyst design, catalytic performance mechanism. This review will provide insights into efficient utilization promote development reaction.

Language: Английский

Citations

16
Oil-Resistant and Wood-Inspired Superhydrophilic Poly(Vinyl Alcohol) Aerogel with Vertically Aligned Channels for Effective Solar Interfacial Desalination and Wastewater Treatment DOI

Jiehui Li,

Ying Zhang, Qinghua Liu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Environmental pollution and sewage surges necessitate effective water purification methods. Solar interfacial evaporation offers a promising solution, which needs advancements in salt resistance, efficiency, stability. Herein, inspired by the structure of wood, unidirectional freeze-drying method was used to develop vertically aligned channels antioil-fouling poly(vinyl alcohol)-CNTs-waste carton fiber@polydopamine (PVA-CNTs-WCF@PDA) aerogel for desalination wastewater treatment. The anisotropic three-dimensional porous enables it rapidly transport interface resist deposition. Meanwhile, its unique is combined with CNTs PDAs excellent broadband spectral absorption capacity because composite aerogels can interact molecules reduce their vaporization enthalpy. shows an photothermal rate (2.626 kg m-2 h-1) efficiency (94.24%) under one-sun irradiation. Additionally, evaporator conduct 10 consecutive evaporations 3.5% brine, indicating that has ability desalination. Finally, also purify oil-in-water emulsion mine wastewater. It be seen there are no obvious oil droplets treated treatment effect reaches 89.13%. showed application prospects field purification.

Language: Английский

Citations

4