Amorphizing noble metal chalcogenide catalysts at the single-layer limit towards hydrogen production
Yongmin He,Liren Liu,Chao Zhu,Shasha Guo,Prafful Golani,Bonhyeong Koo,Pengyi Tang,Zhiqiang Zhao,Mangzhang Xu,Peng Yu,Xin Zhou,Caitian Gao,Xuewen Wang,Zude Shi,Lu Zheng,Jiefu Yang,Byungha Shin,Jordi Arbiol,Huigao Duan,Yonghua Du,Marc Heggen,Rafal E. Dunin-Borkowski,Wanlin Guo,Qi Jie Wang,Zhuhua Zhang,Zheng Liu +25 more
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TLDR
In this paper , the authors demonstrate the fabrication of a wafer-size amorphous PtSex film on a SiO2 substate via a low-temperature amorphization strategy, which offers single-atom-layer Pt catalysts with high atom utilization.Abstract:
Rational design of noble metal catalysts with the potential to leverage efficiency is vital for industrial applications. Such an ultimate atom-utilization efficiency can be achieved when all noble metal atoms exclusively contribute to catalysis. Here, we demonstrate the fabrication of a wafer-size amorphous PtSex film on a SiO2 substate via a low-temperature amorphization strategy, which offers single-atom-layer Pt catalysts with high atom-utilization efficiency (~26 wt%). This amorphous PtSex (1.2 < x < 1.3) behaves as a fully activated surface, accessible to catalytic reactions, and features a nearly 100% current density relative to a pure Pt surface and reliable production of sustained high-flux hydrogen over a 2 inch wafer as a proof-of-concept. Furthermore, an electrolyser is demonstrated to generate a high current density of 1,000 mA cm−2. Such an amorphization strategy is potentially extendable to other noble metals, including the Pd, Ir, Os, Rh and Ru elements, demonstrating the universality of single-atom-layer catalysts. The scarcity and high price of noble metal catalysts pose critical challenges for the chemical industry, and finding strategies that ensure complete atom efficiency has become a pivotal endeavour. This work introduces the fabrication of amorphous single-layer PtSex catalysts for the hydrogen evolution reaction with high atom-utilization efficiency. read more
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Interfacial synergies between single-atomic Pt and CoS for enhancing hydrogen evolution reaction catalysis
TL;DR: In this article , the role of single atoms and the substrate for the hydrogen evolution reaction (HER) was investigated, and the performance of Pt@CoS catalysts with a 45-fold increase in mass current density compared to the benchmark Pt/C at 100 mV.
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Recent Advances in Carbon‐Supported Noble‐Metal Electrocatalysts for Hydrogen Evolution Reaction: Syntheses, Structures, and Properties
Yuhang Liu,Qilun Wang,Jincheng Zhang,Jie Ding,Yaqi Cheng,Tianshu Wang,Jing Li,Fang Xin Hu,Hong Bin Yang,Bin Liu +9 more
TL;DR: A comprehensive review of the recent advances in carbon-supported noble-metal electrocatalysts is presented, focusing on their synthetic strategies, structural analyses, and applications in HER electrocatalysis as mentioned in this paper .
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Recent strategies for activating the basal planes of transition metal dichalcogenides towards hydrogen production
TL;DR: The currently strategies for activating the TMDC basal planes toward hydrogen evolution reaction were summarized in this article , which are divided into internal and external regulation, depending on whether the pristine structure is altered or not.
Journal ArticleDOI
Mixed‐Dimensional Pt–Ni Alloy Polyhedral Nanochains as Bifunctional Electrocatalysts for Direct Methanol Fuel Cells
Tianyu Xia,Kai Zhao,Youqi Zhu,Xiaoyan Bai,Han Gao,Ziyu Wang,Yue Gong,Mengling Feng,Shunfang Li,Qiang Zheng,Shouguo Wang,Rongming Wang,Haizhong Guo +12 more
TL;DR: In this paper , a mixed-dimensional Pt-Ni alloy polyhedral nanochains (Pt-Ni PNCs) with an ordered assembly of a nanopolyhedra-nanowire-nanopolyhedral architecture are fabricated as bifunctional electrocatalysts for DMFCs, effectively alleviating the size effect.
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Pd–PdO Nanodomains on Amorphous Ru Metallene Oxide for High‐Performance Multifunctional Electrocatalysis
TL;DR: In this paper , a facile synthetic strategy is used to confine atomically thin Pd-PdO nanodomains to amorphous Ru metallene oxide (RuO2 ).
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MoS2 Nanoparticles Grown on Graphene: An Advanced Catalyst for the Hydrogen Evolution Reaction
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