HfPt3

HfPt3 is a stable metallic alloy composed of hafnium and platinum that is primarily studied for its potential as a high-performance catalyst.

Crystal structure of HfPt3
Ground-state structure · Materials Project
Overview

About HfPt3

HfPt3 is a metallic intermetallic compound belonging to the class of platinum-group alloy catalysts. As a thermodynamically stable phase located on the convex hull, it represents a robust structural configuration within its binary system, reflecting the strong chemical affinity between hafnium and platinum. Its metallic nature ensures efficient electron transport, which is a critical feature for catalytic activity in various electrochemical environments. The compound is characterized by significant structural diversity, with numerous reported arrangements across material databases, highlighting its complex and well-documented crystalline landscape. This structural richness makes it a subject of interest for researchers seeking to tune catalytic performance through atomic-scale modifications.

At a glance

Key Properties

Cross-validated computational properties for HfPt3, aggregated across 4 databases.

Band Gap

Metallic / not reported

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
3 DFT sources

Structures

40
4 databases, 15 space groups
Uses

Applications

Where HfPt3 is used.

ElectrocatalysisHydrogen evolution reaction researchSurface science studies
Reference

Frequently Asked Questions

Common questions about HfPt3, answered from cross-validated data.

What is HfPt3?

HfPt3 is a stable metallic alloy composed of hafnium and platinum that is primarily studied for its potential as a high-performance catalyst.

More questions
What is HfPt3 used for?
HfPt3 is used in electrocatalysis, hydrogen evolution reaction research, and surface science studies.
What is the band gap of HfPt3?
HfPt3 is computed to be metallic (no band gap) in the reported DFT structures.
Is HfPt3 a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is HfPt3 thermodynamically stable?
Yes — HfPt3 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of HfPt3 are known?
40 structures of HfPt3 are reported across 4 databases, spanning 15 distinct space groups.
What elements does HfPt3 contain?
HfPt3 contains Hf and Pt (2 elements).
Where does the data for HfPt3 come from?
HfPt3 data is cross-referenced from latticegraph.
Comparison

How It Compares

Within the platinum-group alloy catalysts class.

Within the diverse family of platinum-group alloy catalysts, HfPt3 distinguishes itself through its exceptional thermodynamic stability compared to more volatile or metastable counterparts like As2Pt or GeRu. While many members of this class are investigated for specific surface-active properties, HfPt3 offers a highly ordered, stable framework that serves as a reliable baseline for studying the synergistic effects of hafnium-platinum bonding in catalytic applications.

Explore

Related Compounds

Other Platinum-Group Alloy Catalysts in the database.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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