Unlocking solar energy: Photocatalysts design for tuning the CO2 conversion into high-value (C2+) solar fuels

EnergyChem, Год журнала: 2024, Номер 6(5), С. 100130 - 100130

Опубликована: Июль 16, 2024

Язык: Английский

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Emerging ZnO Semiconductors for Photocatalytic CO₂ Reduction to Methanol

Small, Год журнала: 2024, Номер unknown

Опубликована: Окт. 4, 2024

Abstract Carbon recycling is poised to emerge as a prominent trend for mitigating severe climate change and meeting the rising demand energy. Converting carbon dioxide (CO 2 ) into green energy valuable feedstocks through photocatalytic CO reduction (PCCR) offers promising solution global warming needs. Among all semiconductors, zinc oxide (ZnO) has garnered considerable interest due its ecofriendly nature, biocompatibility, abundance, exceptional semiconducting optical properties, cost‐effectiveness, easy synthesis, durability. This review thoroughly discusses recent advances in mechanistic insights, fundamental principles, experimental parameters, modulation of ZnO catalysts direct PCCR C 1 products (methanol). Various modification techniques are explored, including atomic size regulation, synthesis strategies, morphology manipulation, doping with cocatalysts, defect engineering, incorporation plasmonic metals, single atom boost performance. Additionally, highlights importance photoreactor design, reactor types, geometries, operating modes, phases. Future research endeavors should prioritize development cost‐effective catalyst immobilization methods solid‐liquid separation recycling, while emphasizing use abundant non‐toxic materials ensure environmental sustainability economic viability. Finally, outlines key challenges proposes novel directions further enhancing ZnO‐based conversion processes.

Язык: Английский

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Advances in the studies of the supported ruthenium catalysts for CO2 methanation

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Год журнала: 2024, Номер 63, С. 1 - 15

Опубликована: Авг. 1, 2024

Язык: Английский

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Recent Progress in Chemically Functionalized Heterogeneous Catalysts for CO₂ Conversion by Electro and Photocatalysis: A Review

Advanced Sustainable Systems, Год журнала: 2025, Номер unknown

Опубликована: Март 12, 2025

Abstract The foremost cause of global warming in 21 st century is excessive generation CO 2 and its build‐up atmosphere. In mandate to address this important problem, many solutions are investigated, with conversion emerging as a key approach. This method produces clean, renewable energy while simultaneously lowering levels. order facilitate an investigation sophisticated multifunctional catalysts for conversion, study starts by looking at the primary sources their effects on environment. It explores importance development methods into value‐added products including methanol, ethanol, hydrocarbons. Specifically, utilization tailored carbon‐based, metal organic frameworks (MOF)‐based, Metal Oxide‐based, Zeolite‐based catalysts, composites across various such photocatalysis, electrocatalysis explored. attempts highlight difficulties possible future developments complexity topic. provides inclusive exploration facets highlighting significance novel catalyst application tactics halting warming.

Язык: Английский

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Microscopic Insights into the Catalytic Activity–Stability Trade-Off on Copper Nanoclusters for CO₂ Hydrogenation to HCOOH

The Journal of Physical Chemistry A, Год журнала: 2025, Номер 129(9), С. 2247 - 2258

Опубликована: Фев. 25, 2025

Lowly coordinated copper clusters are the most cost-effective benchmark catalysts for CO2 hydrogenation, but there is a meticulous balance between catalytic activity and stability. Herein, density functional theory (DFT) calculations implemented to examine performance of Cun nanoclusters (n = 4, 8, 16, 32) in CO2-to-HCOOH conversion. Facile activation H2 observed with significant electron transfer from antibonding orbitals H2; conversely, C–O bond poorly activated due low degree orbital overlap. During reaction, structural fluxionality occurs on Cu4 Cu8 because stability; however, negligible deformation Cu16 Cu32. In addition, achieves good kinetics each elementary which is, difficult be maintained Cu4, Cu8, Therefore, satisfies trade-off stability Energy decomposition analysis clarifies that barrier second hydrogenation originates energy hydride desorption, electronic repulsion hydroxyl group formation, as well local Cu–O cleavage. The high demand mainly sourced last term. From bottom up, this work provides microscopic insights into activity–stability HCOOH would facilitate rational design advanced high-value utilization exhaust gas.

Язык: Английский

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Current Research Status and Future Perspective of Ni- and Ru-Based Catalysts for CO2 Methanation

Catalysts, Год журнала: 2025, Номер 15(3), С. 203 - 203

Опубликована: Фев. 21, 2025

Using anthropogenic carbon dioxide (CO2) as a feedstock for the production of synthetic fuel has gained significant attention in recent years. Among various CO2 conversion pathways, natural gas via methanation holds promise because its potential both recycling and renewable energy storage. Nickel (Ni) ruthenium (Ru) are dominant metals employed catalysts reaction. This review summarizes research landscape Ni- Ru-based over last ten Bibliometric analysis revealed that China highest number publications, Chinese Academy Sciences is foremost academic institution, International Journal Hydrogen Energy leading journal this area research. The publication trend on Ni-based published at almost four times rate catalysts. Despite growth research, problems with catalyst stability kinetics still exist. latest catalytic systems, including supported, bimetallic, single-atom fundamental challenges associated process reviewed. provides new angle future studies based non-noble Ni noble Ru opens way additional area.

Язык: Английский

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Tailoring the A and B site of Fe-based perovskites for high selectivity in the reverse water-gas shift reaction

Journal of CO2 Utilization, Год журнала: 2024, Номер 83, С. 102784 - 102784

Опубликована: Апрель 30, 2024

The reverse water-gas shift reaction (rWGS) is of particular interest as it the first step to producing high-added-value products from carbon dioxide (CO2) and renewable hydrogen (H2), such synthetic fuels or other chemical building blocks (e.g. methanol) through a modified Fischer-Tropsch process. However, side reactions material deactivation issues, depending on conditions used, still make challenging. Efforts have been put into developing improving scalable catalysts that can deliver high selectivity while at same time being able avoid temperature sintering and/or deposition. Here we design set perovskite ferrites specifically tailored hydrogenation CO2 via reaction. We tailor oxygen vacancies, proven play major role in process, by partially substituting primary A-site element (Barium, Ba) with Praseodymium (Pr) Samarium (Sm), also dope B-site small amount Nickel (Ni). take advantage exsolution process manage produce highly selective Fe-Ni alloys suppress formation any by-products, leading up 100% CO selectivity.

Язык: Английский

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Synthesis and Characterization of Carbon-Based Heterogeneous Catalysts for Energy Release of Molecular Solar Thermal Energy Storage Materials

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(6), С. 7211 - 7218

Опубликована: Фев. 1, 2024

Molecular solar thermal energy storage (MOST) systems are rapidly becoming a feasible alternative to and net-zero carbon emission heating. MOST involve single photoisomerization pair that incorporates light absorption, storage, heat release processes in one recurring cycle. Despite significant recent advancements the field, catalytic back-reaction from remains relatively unexplored. A wide range of applications is possible, contingent on densities specific photoisomers. Here, we report platinum-, copper-, nickel-based heterogeneous catalysts screened batch conditions for back-conversion reaction cyano-3-(4-methoxyphenyl)-norbornadiene/quadricyclane pair. Catalyst reactivities investigated using structural characterization, imaging techniques, spectroscopic analysis. Finally, stability also explored our best-performing catalysts.

Язык: Английский

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Theoretical Study on the Electrocatalytic CO₂ Reduction Mechanism of Single-Atom Co Complexed Carbon-Based (Co–N_χ@C) Catalysts Supported on Carbon Nanotubes

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(35), С. 46270 - 46279

Опубликована: Авг. 22, 2024

Electrocatalytic CO2 reduction serves as an effective strategy to tackle energy crises and mitigate greenhouse gas effects. The development of efficient cost-effective electrocatalysts has been a research hotspot in the field. In this study, we designed four Co-doped single-atom catalysts (Co–Nχ@C) using carbon nanotubes carriers, these included tri- dicoordinated N-doped nanoribbons, well graphene, respectively denoted H3(H2)-Co/CNT 3(2)-Co/CNT. stable configurations Co–Nχ@C were optimized PBE+D3 method. Additionally, explored reaction mechanisms for electrocatalytic into C1 products, including CO, HCOOH, CH3OH CH4, detail. Upon comparing limiting potentials (UL) across catalysts, activity sequence was H2–Co/CNT > 3-Co/CNT H3–Co/CNT 2-Co/CNT. Meanwhile, our investigation hydrogen evolution (HER) with elucidated influence acidic conditions on process. Specifically, controlling acidity solution crucial when while 2-Co/CNT almost unaffected by solution's acidity. We hope that will provide theoretical foundation designing more electrocatalysts.

Язык: Английский

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Recent Understanding of Water‐Assisted CO₂ Hydrogenation to Alcohols

ChemCatChem, Год журнала: 2024, Номер 16(11)

Опубликована: Фев. 14, 2024

Abstract Alcohol production from CO 2 hydrogenation is a cutting‐edge process in sustainable chemistry that holds vast promise for addressing climate change by recycling and repurposing emissions. Many strategies have been proposed to improve the efficiency. In‐situ generated, trace amounts of water added feed stream recently proved be determinant promote key reaction steps, increasing alcohol selectivity yield. Here, we discuss main findings led an atomic‐level understanding promotional effects alcohols. H O products resultant its dissociation (OH O) can act different ways, stabilizing intermediates active sites or participating hydrogen transfer mechanisms during reaction. Gaining insights into underlying promotion offers cost‐effective strategy enhancing

Язык: Английский

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