Electrochemical NO reduction to NH3 on Cu single atom catalyst

Nano Research, Journal Year: 2022, Volume and Issue: 16(4), P. 5857 - 5863

Published: Dec. 23, 2022

Language: Английский

---

Recent advances in polyoxometalate-based materials and their derivatives for electrocatalysis and energy storage

Materials Chemistry Frontiers, Journal Year: 2023, Volume and Issue: 8(3), P. 732 - 768

Published: Nov. 8, 2023

This review highlights the significant roles of POMs in electrocatalysis and energy storage, summarizes recent advances POM-based materials their derivatives water-splitting, CO 2 RR, NRR, SCs, rechargeable batteries.

Language: Английский

---

The future of polyoxymetalates for biological and chemical apllications

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 493, P. 215306 - 215306

Published: June 20, 2023

Language: Английский

---

Strategies to achieve effective nitrogen activation

Carbon Energy, Journal Year: 2024, Volume and Issue: 6(5)

Published: Feb. 23, 2024

Abstract Ammonia serves as a crucial chemical raw material and hydrogen energy carrier. Aqueous electrocatalytic nitrogen reduction reaction (NRR), powered by renewable energy, has attracted tremendous interest during the past few years. Although some achievements have been revealed in aqueous NRR, significant challenges also identified. The activity selectivity are fundamentally limited activation competitive evolution. This review focuses on hurdles of delves into complementary strategies, including materials design system optimization (reactor, electrolyte, mediator). Then, it introduces advanced interdisciplinary technologies that recently emerged for using high‐energy physics such plasma triboelectrification. With better understanding corresponding mechanisms coming years, these potential to be extended further applications. provides insight stability different systems. We then recommend rigorous detailed protocol investigating NRR performance highlight several research directions this exciting field, coupling with applications, situ/operando characterizations, theoretical calculations.

Language: Английский

---

Well‐defined nanostructures of high entropy alloys for electrocatalysis

Exploration, Journal Year: 2024, Volume and Issue: unknown

Published: July 2, 2024

Abstract High‐entropy alloys (HEAs) have attracted significant attention for electrocatalytic energy conversion by virtue of their promisingly high efficiency, stability, and low cost. Recently, encouraging progress has been made in tuning the structure composition HEAs used electrolyzers fuel cells. However, understanding on synthetic methods structure‐property‐performance relationship well‐defined nanostructures is still inadequate. To gain insight into future research directions electrocatalysis, this paper, commonly to obtain (0D nanoparticles, 1D nanowires, 2D nanosheets/nanoplates, 3D nanoporous structures, other three‐dimensional morphologies) are first summarized. Then, authors discuss application several typical reactions, including hydrogen evolution reaction, oxygen reduction alcohol oxidation carbon dioxide nitrogen formic acid reaction. Finally, a practical perspective nanostructured electrocatalysts provided.

Language: Английский

---

Non‐Noble‐Metal‐Based Electrocatalysts for Acidic Oxygen Evolution Reaction: Recent Progress, Challenges, and Perspectives

Small, Journal Year: 2024, Volume and Issue: 20(48)

Published: Aug. 25, 2024

Abstract The oxygen evolution reaction (OER) plays a pivotal role in diverse renewable energy storage and conversion technologies, including water electrolysis, electrochemical CO 2 reduction, nitrogen fixation, metal‐air batteries. Among various electrolysis techniques, proton exchange membrane (PEM)‐based devices offer numerous advantages, high current densities, exceptional chemical stability, excellent conductivity, high‐purity H . Nevertheless, the prohibitive cost associated with Ir/Ru‐based OER electrocatalysts poses significant barrier to broad‐scale application of PEM‐based splitting. Consequently, it is crucial advance development non‐noble metal catalysis substance acid‐activity thereby fostering their widespread integration into PEM electrolyzers (PEMWEs). In this review, comprehensive analysis acidic mechanism, encompassing adsorbate mechanism (AEM), lattice (LOM) oxide path (OPM) offered. Subsequently, systematic summary recently reported noble‐metal‐free catalysts transition metal‐based, carbon‐based other types provided. Additionally, compilation situ/operando characterization techniques provided, serving as invaluable tools for furnishing experimental evidence comprehend catalytic mechanism. Finally, present challenges future research directions concerning precious‐metal‐free are comprehensively summarized discussed review.

Language: Английский

---

How water molecules occupying the active site of a single-atom catalyst affect the electrochemical reduction of carbon dioxide

Nano Research, Journal Year: 2023, Volume and Issue: 16(7), P. 9091 - 9098

Published: May 11, 2023

Language: Английский

---

Precise Synthesis at the Atomic Scale

Precision Chemistry, Journal Year: 2023, Volume and Issue: 1(4), P. 199 - 225

Published: May 26, 2023

Precise synthesis at the atomic scale is a highly desirable and controllable route for preparation of heterogeneous catalysts with desired structure properties, which promotes rational design efficient facilitates understanding structure-properties relationship. The precise construction active sites provides important opportunities insight into correlation between catalytic performance. In this review, atomic-level tuning strategies are summarized emphasis on control sites, including single atom dual complex sites. Furthermore, we illustrate crucial role regulation in determining performance by providing typical catalysis examples different reactions. end, some perspectives further development level presented.

Language: Английский

---

Single-Molecule Magnet Behavior of Confined Dy(III) in a Mixed Heteroatom-Substituted Polyoxotungstate

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(10), P. 4492 - 4501

Published: Feb. 28, 2024

Two heteroatom-templated Dy(III)-confined polyoxotungstates [H2N(CH3)2]7Na7[Dy2(H2O)7(W4O9)(HPSeW15O54)(α-SeW9O33)2]·31H2O (1) and [H2N(CH3)2]14K2Na18{[Dy2(H2O)13W14O40]2[α-SeW9O33]4[HPSeW15O54]2}·44H2O (2) were synthesized by a one-pot aqueous reaction structurally characterized. The most distinctive structural feature of complexes 1 & 2 is the simultaneous presence both trivacant Keggin [α-SeW9O33]8– Dawson [HPSeW15O54]10– building blocks containing P(III)–Se(IV) heteroatoms. trimeric polyanion can be represented as fusion two units encapsulating [Dy2(H2O)7(W4O9)]12+ cluster. On other hand, hexameric polyoxoanions are described four [HPSeW15O54]10–, anchoring [Dy4(H2O)26W28O80]20+ magnetic investigation revealed significant anisotropy slow relaxation magnetization behavior for complex with phenomenological energy barrier, Ueff = 13.58 K in absence an external field, 24.57 500 Oe dc field. favors QTM process field shows field-induced 11.11 at 1500 applied in-depth analysis dynamics that follows Orbach well Raman pathways. Further, ab initio calculation studied confirms highly axial ground first excited states (containing pure highest mJ states) responsible observed single-molecule magnet (SMM) behavior. Remarkably, this example mixed heteroatom-based Dy(III)-substituted polyoxotungstate showing SMM

Language: Английский

---

A DFT study on regulating the active center of v-Ti2XT2 MXene through surface modification for efficient nitrogen fixation

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 664, P. 1 - 12

Published: March 5, 2024

Language: Английский

---