Stabilizing Fe Single Atoms on Rutile-TiO2(110) Surface Via Atomic Substitution DOI
Huimin Xu, Lei Wang, Linjie Chen

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(36), P. 9272 - 9279

Published: Sept. 5, 2024

Stable anchoring of dispersed metal atoms through either surface adsorption or lattice substitution on support surfaces is a prerequisite for highly efficient catalytic performance. Atomic-level insights into these processes are necessary to understand the metal-support interactions. Here, we identify multiple Fe single-atom configurations rutile-TiO

Language: Английский

Atomically Dispersed Iridium on Polyimide Support for Acidic Oxygen Evolution DOI
Longsheng Zhang, Jing Bai, S. Zhang

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(33), P. 22095 - 22103

Published: Aug. 8, 2024

Designing a high-performing iridium (Ir) single-atom catalyst is desired for acidic water electrolysis, which shows enormous potential given its high catalytic activity toward oxygen evolution reaction (OER) with minimum usage of precious Ir metal. However, it still remains substantial challenge to stabilize the single atoms during OER operation without sacrificing activity. Here, we report by immobilizing on polyimide support, exhibits mass carbon paper electrode while simultaneously achieving outstanding stability negligible decay 360 h. The resulting (denoted as Ir1–PI@CP) reaches 49.7-fold improvement in compared counterpart prepared support. Both our experimental and theoretical results suggest that, owing strong metal–support interactions, support can enhance 5d states Ir1–PI@CP, tailor adsorption energies intermediates decrease thermodynamic barrier at rate-determining step OER, but also facilitate proton–electron-transfer process improve kinetics. This work offers an alternative avenue developing catalysts superior durability various systems beyond.

Language: Английский

Citations

11
Sub-1 nm Materials Chemistry: Challenges and Prospects DOI
Qingda Liu,

Xiaoya Wang,

Xun Wang

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 23, 2024

Subnanometer materials (SNMs) refer to nanomaterials with a feature size close 1 nm, similar the diameter of single polymer, DNA strand, and cluster/unit cell. The growth assembly subnanometer building blocks can be controlled by interactions at atomic levels, representing limit for precise manipulation materials. size, geometry, flexibility 1D SNMs inorganic backbones are polymer chains, bringing excellent gelability, adhesiveness, processability different from nanocrystals. ultrahigh surface atom ratio results in significantly increased energy, leading significant rearrangement atoms. Unconventional phases, immiscible metal alloys, high entropy few layers stabilized, spontaneous twisting may induce intrinsic structural chirality. Electron delocalization also emerge subnanoscale, giving rise enhanced catalytic activity. In this perspective, we summarized recent progress on SNMs, including their synthesis, polymer-like properties, metastable chirality, toward energy conversion. As critical region nanoscience, development functional fuse boundary polymers conduce manufacturing levels.

Language: Английский

Citations

8
Microenvironment modulation of Fe single atoms in porous g-C3N4 by introducing −SO groups for enhanced photo-Fenton reactions DOI
Mao Xu, Qianyu Zhang, Shumei Wang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 500, P. 157468 - 157468

Published: Nov. 1, 2024

Language: Английский

Citations

5
CO2 adsorption and activation on p-block catalyst Ga2O3 DOI Creative Commons

Zhizhuang Liu,

Xiaoxu Kuang,

Bao‐Wen Li

et al.

Science China Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Language: Английский

Citations

0
Defect‐Enriched Cobalt‐Based Coordination Polymers for Selective and Efficient Nitrate Electroreduction to Ammonia DOI Open Access

Yidan Ding,

S. Zhang, Yunxia Liu

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract Electrocatalytic nitrate reduction to ammonia (NRA) offers an arousing route for converting widespread pollutant under mild conditions. Among other NRA catalysts, single‐atom catalyst (SAC) has emerged as a promising candidate due its numerous advantages such maximum metal‐atom‐utilization efficiency, homogeneous and tailorable active sites, which still encounters formidable challenge accelerate the kinetics simultaneously suppress competitive hydrogen evolution reaction, especially when operated in electrolytes with low concentration nitrate. Herein, general strategy is reported prepare defect‐enriched coordination polymer catalysts featuring well‐defined unsaturated metal can exhibit exceptional performance even at surpass SACs toward catalysis. Taking cobalt (Co) example, Co‐based polymers (d‐CoCP) counterpart CoCP without defects are investigated proof‐of‐concept study. Both experimental theoretical results elucidate that elaborately‐engineered d‐CoCP markedly decrease thermodynamic barrier reducing *NO *HNO rate‐limiting step along pathway, thus accelerating adsorption of promoting kinetics.

Language: Английский

Citations

0
Emerging non-d-block single-atom catalysis: A way stepping out of the transition metals DOI
Man Li,

Yi‐Bing Yang,

Na Jin

et al.

Materials Today Sustainability, Journal Year: 2024, Volume and Issue: 26, P. 100731 - 100731

Published: March 4, 2024

Language: Английский

Citations

3
Electrocatalytic Mechanism and Sabatier Principle in C2N-Supported Atomically Dispersed Catalysts for the Sulfur Reduction Reaction in Lithium–Sulfur Batteries DOI

Xingjia Chen,

Haifeng Lv, Xiaojun Wu

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(12), P. 3425 - 3433

Published: March 20, 2024

The sluggish kinetics of the sulfur reduction reaction (SRR) impedes practical application lithium-sulfur batteries (LSBs). Electrocatalysts are necessary to expedite conversion polysulfides. Here, we systematically investigate chemical mechanisms and size dependence catalytic activities toward SRR from Li

Language: Английский

Citations

3
Simultaneous modulation of Ni single atoms and NiOx clusters on TiO2 for solar-driven CO2 and H2O conversion to CH4 DOI
Shihao Wei, Yi Li,

Xu Mao

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 683, P. 731 - 741

Published: Dec. 17, 2024

Language: Английский

Citations

1
Stabilizing Fe Single Atoms on Rutile-TiO2(110) Surface Via Atomic Substitution DOI
Huimin Xu, Lei Wang, Linjie Chen

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(36), P. 9272 - 9279

Published: Sept. 5, 2024

Stable anchoring of dispersed metal atoms through either surface adsorption or lattice substitution on support surfaces is a prerequisite for highly efficient catalytic performance. Atomic-level insights into these processes are necessary to understand the metal-support interactions. Here, we identify multiple Fe single-atom configurations rutile-TiO

Language: Английский

Citations

0