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| 1 | Recent progress on the long-term stability of hydrogen evolution reaction electrocatalysts显示文摘Developing new methodologies to produce clean and renewable energy resources is pivotal for carbon-neutral initiatives.Hydrogen(H2)is considered as an ideal energy resource due to its nontoxic,pollution-free,high utilization rate,and high calorific combustion value.Electrolysis of water driven by the electricity generated from renewable and clean energy sources(e.g.,solar energy,wind energy)to produce hydrogen attracts great efforts for hydrogen production with high purity.Recently,the breakthrough of the catalyst activity limit for the hydrogen evolution reaction(HER)catalysts has received extensive attention.Comparatively,fewer reviews have focused on the long-term stability of HER catalysts,which is indeed decisive for large-scale electrolytic industrialization.Therefore,a systematic summary concentrated on the durability of HER electrocatalysts would provide a fundamental understanding of the electrocatalytic performance for practical applications and offer new opportunities for the rational design of the highly performed HER electrocatalysts.This review summarizes the research progress toward the HER stability of precious metals,transition metals,and metal-free electrocatalysts in the past few years.It discusses the challenges in the stability of HER electrocatalysts and the future perspectives.We anticipate that it would provide a valuable basis for designing robust HER electrocatalysts. | Wenfang Zhai Yuanyuan Ma Dong Chen Johnny C.Ho Zhengfei Dai Yongquan Qu | 2022 | InfoMat2022，4，9： | 1 |
| 2 | 泡沫铜支撑Ru掺杂Cu3P自支撑催化剂及其析氢性能显示文摘过渡金属磷化物(TMP)是一种用于碱性条件下析氢反应(HER)的有效催化剂,然而其活性严重受限于水解离步。本文通过在泡沫铜(CF)上生长Cu(OH)_(2)纳米阵列,RuCl3溶液浸泡和磷酸化,制备了一种具有较大比表面积和适当Ru掺杂的Ru-Cu_(3)P自支撑催化剂(Ru-Cu_(3)P/CF)。作为一种优良的HER催化剂,在电流密度为10mA·cm^(-2)时,其过电位为95.6 mV,比Cu_(3)P/CF降低149.4 mV。其决速步由Volmer向Heyrovsky机制过渡。HER性能的提高可以归因于Ru掺杂磷化铜促进水解离过程,以及Cu(OH)_(2)纳米阵列衍生Cu_(3)P纳米结构具有更高的电化学活性面积,从而保证了更多的活性位点。本论文突出了具有空的d轨道的金属掺杂促进水解离的重要性,为高性能电解水析氢催化剂的设计提供了新思路。 | 万紫轩 王超辉 康雄武 | 2022 | 电化学2022，28，10： | 0 |
| 3 | 磷掺杂的Ru-Pt合金催化剂及其电催化碱性析氢性能显示文摘可再生能源驱动电催化水分解产氢气在现代氢能及氢燃料电池可持续发展方面,有着极其重要的地位。其中,性能优良催化剂的设计与开发又是重中之重。本文重点发展了一种磷掺杂的铂-钌合催化剂(Ru-P)#Pt/C),TEM分析确认Ru金属纳米粒子的球形形态,XRD表征Ru纳米粒子以六方密堆积形式存在。XPS分析进一步说明了Ru以金属态存在,Pt的原子比在14.5%左右,且以轻微氧化的状态存在,表明其可能与P成键。(Ru-P)@Pt合金催化剂在碱性电解液中表现出优异的电解水析氢性能,在10 mA·cm^(-2)的电流密度下的过电位仅为17mVvs.RHE,Tafel斜率值为27mV.dec^(-1),表明该催化剂析氢决速步为Tafel步骤。而同等条件下,仅P掺杂的Ru催化剂及Pt负载的P掺杂的CNT,其性能均远逊于该目标催化剂,表明了P与Pt共掺杂的协同作用。(Ru-P)#Pt/C合金催化剂经过24h耐久性测试,其10mA·cm^(-2)的过电位及稳定性测试后LSV电流仅出现轻微衰退。这表明P掺杂的Ru-Pt合金催化剂中Ru、Pt、P活性位点间的协同作用,显著提高了电催化析氢活性与稳定性,为高性能碱性电解水析氢催化剂的设计打开了广阔的前景。 | 黄荣钦 廖卫平 晏梦璇 刘石 李远明 康雄武 | 2023 | 电化学2023，29，5： | 0 |
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