Hydrogen, the lightest element in the periodic table, has been predicted to metalize under extreme compression. Metallic hydrogen is believed to be a room-temperature superconductor. Due to the considerable experimental challenges of reaching such a state, the metallic hydrogen has often been deemed the holy grail of condensed matter physics. It was then predicted that hydrogen-rich hydrides could also become superconductors with high critical temperatures ($T_{\text{c}}$) at substantially lower pressures than that of pure hydrogen. In the past decade, there has been significant progress in this field of research from both theoretical and experimental viewpoints. An exemplary of these research efforts is the recent superconducting binary hydride with a record $T_{\text{c}}$ of ∼260 K, a promising result for the eventual discovery of a room-temperature superconductor. This review summarizes significant developments in the studies of binary hydrides at high pressure that were predicted to exhibit superconductivity. In particular, those that have been experimentally verified or have calculated $T_{\text{c}}$ > 100 K. Such hydrides are often characterized by unique, hydrogen-rich stoichiometry and interesting structural arrangements. This recent progress in the field allows a modern perspective on the potential of reaching a room temperature superconducting state.

氢是元素周期表中最轻的元素，据预测会在极端压缩下金属化。金属氢被认为是一种室温超导体。由于达到这种状态需要相当大的实验挑战，因此金属氢通常被认为是凝聚态物理学的圣杯。然后预测富氢氢化物也可以成为具有高临界温度的超导体（${吨}_{\text{C}}$) 的压力远低于纯氢气的压力。在过去的十年中，从理论和实验的角度来看，该领域的研究都取得了重大进展。这些研究工作的一个例子是最近的超导二元氢化物${吨}_{\text{C}}$约 260 K，这是最终发现室温超导体的一个有希望的结果。这篇综述总结了高压下二元氢化物研究的重大进展，这些氢化物预计会表现出超导性。特别是那些经过实验验证或计算的${吨}_{\text{C}}$> 100 K。此类氢化物通常具有独特的富氢化学计量和有趣的结构排列。该领域的最新进展为达到室温超导状态的潜力提供了现代视角。