Work

Engineering Active Interfaces on the Surface of Porous Single-Crystalline TiO 2 Monoliths for Enhanced Catalytic Activity and Stability

Year: 2024

Type: article

Abstract: The engineering design and construction of active interfaces represents a promising approach amidst numerous initiatives aimed at augmenting catalytic activity. Herein, we present a novel approach to incorporate interconnected pores within bulk single crystals for the synthesis of macroscopic porous single-crystalline rutile titanium oxide (R-TiO 2 ). The porous single crystal (PSC) R-TiO 2 couples a nanocrystalline framework as the solid phase with pores as the fluid phase within its structure, providing unique advantages in localized structure construction and in the field of catalysis. We successfully construct well-defined Ni cluster/TiO 2 active interfaces by directly confining Ni clusters on the continuous lattice surface of PSC R-TiO 2 . We confirm that the lattice oxygen connected to the Ni clusters exhibits exceptional activation capability at temperatures close to room temperature compared to the pure phase PSC R-TiO 2 monoliths. The PSC Ni/TiO 2 catalyst demonstrates complete CO oxidation and stable catalytic performance during continuous operation in air at ~80 °C for 200 h.

Source: Research

DOI: 10.34133/research.0579

Authors: Huang Lin, Cong Luo, Fangyuan Cheng, Kui Xie

Institutions: Chinese Academy of Sciences, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Shanghai Jiao Tong University

Language: English

Topic: Catalytic Processes in Materials Science

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $1,500