DataVXACS NanoPaper
journal article·2026-01-20

Pseudo-Ir Os x Pt 1– x Solid Solutions for Ir-Free H 2 Generation from N 2 H 4 Decomposition

Junyun Gao, Jie Zheng, Hanwen Deng, Zhe Tan, Jiang Zhao, Bo Huang

ACS Nano· Volume 20· Issue 2
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Source abstract

Abstract

Metallic Ir is known as the most active catalyst for room-temperature H 2 generation from N 2 H 4 decomposition. To improve N 2 H 4 -based H 2 storage technologies, the replacement of the extremely rare and high-cost Ir element is imminent but challenging because of its unique electronic structure. As one of the rational approaches for Ir replacements, immiscible Os x Pt 1– x solid solutions were synthesized. Even with low-activity elements (Os and Pt), Os 0.5 Pt 0.5 showed much higher N 2 H 4 decomposition activity than that of the pure Ir catalyst. According to the in situ Fourier transform infrared measurements and density-functional-theory calculations, the rapid N–N and N–H dissociations and H 2 formations on Os–Os, Os–Pt, and Pt–Pt sites might contribute to ultrafast H 2 generation and N 2 H 4 decomposition of Os 0.5 Pt 0.5 as pseudo-Ir.
Source: openalex_inverted_index · Quality: baseline

Research context

Catalysis & surfaces

OpenAlex topics: Hydrogen Storage and Materials · Electrocatalysts for Energy Conversion · Ammonia Synthesis and Nitrogen Reduction

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Chemical Engineering and Technology, Xi’an Jiaotong University, Western China Science and Technology Innovation Harbour, Xixian-ward, Xi’an 712000, China

High-tech Industrial Development Zone

Shaanxi Tianyi Element Technology Co., Ltd

National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi’an Jiaotong University, Western China Science and Technology Innovation Harbour, Xixian-ward, Xi’an 712000, China

Department of Urology, Xi’an First Hospital, Beilin Ward, Xi’an 710001, China

Funding

Xi?an Jiaotong University · Young Talents Foundation of Shaanxi Province · Scientists & Engineers Innovation Team Foundation of Shaanxi Province · Technology Innovation Leading Program of Shaanxi

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