Carbon Energy最新文献_第3页

Improving reaction uniformity of high-loading lithium-sulfur pouch batteries 改善高负载锂硫袋装电池的反应均匀性

IF 20.5 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Energy

Pub Date : 2024-08-23 DOI: 10.1002/cey2.578

Hun Kim, Jae-Min Kim, Ha-Neul Choi, Kyeong-Jun Min, Shivam Kansara, Jang-Yeon Hwang, Jung Ho Kim, Hun-Gi Jung, Yang-Kook Sun

Lithium-sulfur batteries (LSBs) have garnered attention from both academia and industry because they can achieve high energy densities (>400 Wh kg^–1), which are difficult to achieve in commercially available lithium-ion batteries. As a preparation step for practically utilizing LSBs, there is a problem, wherein battery cycle life rapidly reduces as the loading level of the sulfur cathode increases and the electrode area expands. In this study, a separator coated with boehmite on both sides of polyethylene (hereinafter denoted as boehmite separator) is incorporated into a high-loading Li-S pouch battery to suppress sudden capacity drops and achieve a longer cycle life. We explore a phenomenon by which inequality is generated in regions where an electrochemical reaction occurs in the sulfur cathode during the discharging and charging of a high-capacity Li-S pouch battery. The boehmite separator inhibits the accumulation of sulfur-related species on the surface of the sulfur cathode to induce an even reaction across the entire cathode and suppresses the degradation of the Li metal anode, allowing the pouch battery with an areal capacity of 8 mAh cm^–2 to operate stably for 300 cycles. These results demonstrate the importance of customizing separators for the practical use of LSBs.

锂硫电池（LSBs）能够实现高能量密度（400 Wh kg-1），这在市售锂离子电池中很难实现，因此受到学术界和工业界的关注。作为实际利用 LSB 的准备步骤，存在一个问题，即随着硫阴极负载水平的提高和电极面积的扩大，电池循环寿命会迅速缩短。本研究将在聚乙烯两面涂覆波姆石的隔膜（以下简称波姆石隔膜）纳入高负载锂-S 袋式电池，以抑制容量骤降，延长循环寿命。我们探讨了在高容量锂-S 袋装电池放电和充电过程中，硫阴极发生电化学反应的区域产生不平等的现象。玻镁石隔板抑制了硫阴极表面硫相关物种的积累，从而诱导了整个阴极的均匀反应，并抑制了锂金属阳极的降解，使面积容量为 8 mAh cm-2 的袋式电池能够稳定运行 300 个循环。这些结果表明了定制隔膜对于 LSB 实际应用的重要性。

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引用次数: 0

Advanced characterization techniques for phosphate cathodes in aqueous rechargeable zinc-based batteries 锌基水性充电电池中磷酸盐阴极的先进表征技术

IF 19.5 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Energy

Pub Date : 2024-08-23 DOI: 10.1002/cey2.611

Li-Feng Zhou, Jia-Yang Li, Jian Peng, Li-Ying Liu, Hang Zhang, Yi-Song Wang, Yameng Fan, Jia-Zhao Wang, Tao Du

Aqueous zinc-based batteries are emerging as highly promising alternatives to commercially successful lithium-ion batteries, particularly for large-scale energy storage in power stations. Phosphate cathodes have garnered significant research interest owing to their adjustable operation potential, electrochemical stability, high theoretical capacity, and environmental robustness. However, their application is impeded by various challenges, and research progress is hindered by unclear mechanisms. In this review, the various categories of phosphate materials as zinc-based battery cathodes are first summarized according to their structure and their corresponding electrochemical performance. Then, the current advances to reveal the Zn²⁺ storage mechanisms in phosphate cathodes by using advanced characterization techniques are discussed. Finally, some critical perspectives on the characterization techniques used in zinc-based batteries and the application potential of phosphates are provided. This review aims to guide researchers toward advanced characterization technologies that can address key challenges, thereby accelerating the practical application of phosphate cathodes in zinc-based batteries for large-scale energy storage.

锌基水性电池正逐渐成为商业上成功的锂离子电池的替代品，特别是在发电站的大规模能源储存方面。磷酸盐阴极因其可调节的操作潜力、电化学稳定性、高理论容量和对环境的适应性而备受研究关注。然而，磷酸盐阴极的应用受到各种挑战的阻碍，研究进展也因机制不明而受阻。在这篇综述中，首先根据磷酸盐材料的结构及其相应的电化学性能，总结了作为锌基电池阴极的各类磷酸盐材料。然后，讨论了利用先进表征技术揭示磷酸盐阴极中 Zn2+ 储存机制的最新进展。最后，就锌基电池中使用的表征技术和磷酸盐的应用潜力提出了一些重要观点。本综述旨在引导研究人员采用先进的表征技术来应对关键挑战，从而加快磷酸盐阴极在锌基电池中的实际应用，实现大规模储能。

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引用次数: 0

Surface sulfidation constructing gradient heterojunctions for high-efficiency (approaching 18%) HTL-free carbon-based inorganic perovskite solar cells 通过表面硫化构建梯度异质结，实现高效率（接近 18%）无 HTL 碳基无机过氧化物太阳能电池

IF 20.5 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Energy

Pub Date : 2024-08-23 DOI: 10.1002/cey2.586

Xiaonan Huo, Jinqing Lv, Kexiang Wang, Weiwei Sun, Weifeng Liu, Ran Yin, Yansheng Sun, Yukun Gao, Tingting You, Penggang Yin

Due to the advantages of cost-effectiveness and tunable band gap, hole transport layer (HTL)-free CsPbI_XBr_3−X carbon-based inorganic perovskite solar cells (C-IPSCs) are emerging candidates for both single junction and tandem solar cells. Because of the direct contact between the carbon electrode and the perovskite surface, energy barriers and defects at the interface limit the enhancement of power conversion efficiency (PCE). In this work, we first reported a preparation method of CsPbI_2.75Br_0.25 HTL-free C-IPSCs and developed an effective surface sulfidation regulation (SSR) strategy to promote hole extraction and inhibit non-radiative recombination of inorganic perovskite by 2-(thiocyanomethylthio)benzothiazole (TCMTB) surface modification. The introduced S²⁻ anions form strong binding with uncoordinated Pb ions, inhibit the perovskite degradation reaction, and effectively passivate the surface defects. In addition, PbS formed by the SSR strategy constructed a gradient heterojunction, which promoted the arrangement energy levels and enhanced hole extraction. An additional back-surface field is induced at the interface of perovskite by energy band bending, which increases the open-circuit voltage (V_OC). As a result, the SSR-based CsPbI_2.75Br_0.25 HTL-free C-IPSCs showed a PCE of 17.88% with a fill factor of 81.56% and V_OC of 1.19 V, which was among the highest reported values of CsPbI_2.75Br_0.25 HTL-free C-IPSCs.

无空穴传输层（HTL）的 CsPbIXBr3-X 碳基无机包晶体太阳能电池（C-IPSC）具有成本效益高和带隙可调的优点，正在成为单结和串联太阳能电池的新候选材料。由于碳电极与包晶石表面直接接触，界面上的能障和缺陷限制了功率转换效率（PCE）的提高。在这项工作中，我们首次报道了 CsPbI2.75Br0.25 无 HTL C-IPSC 的制备方法，并开发了一种有效的表面硫化调节（SSR）策略，通过 2-（硫氰酸甲硫基）苯并噻唑（TCMTB）表面改性来促进空穴萃取并抑制无机包晶的非辐射重组。引入的 S2- 阴离子与未配位的铅离子形成强结合，抑制了包晶的降解反应，并有效地钝化了表面缺陷。此外，通过 SSR 策略形成的 PbS 构建了梯度异质结，促进了排列能级，增强了空穴萃取。能带弯曲在包晶界面上诱发了额外的背表面场，从而提高了开路电压（VOC）。因此，基于 SSR 的 CsPbI2.75Br0.25 无 HTL C-IPSC 的 PCE 为 17.88%，填充因子为 81.56%，VOC 为 1.19 V，是已报道的 CsPbI2.75Br0.25 无 HTL C-IPSC 的最高值之一。

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引用次数: 0

Low-temperature performance of Na-ion batteries 钠离子电池的低温性能

IF 19.5 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Energy

Pub Date : 2024-08-13 DOI: 10.1002/cey2.546

Meng Li, Haoxiang Zhuo, Qihang Jing, Yang Gu, Zhou Liao, Kuan Wang, Jiangtao Hu, Dongsheng Geng, Xueliang Sun, Biwei Xiao

Sodium-ion batteries (NIBs) have become an ideal alternative to lithium-ion batteries in the field of electrochemical energy storage due to their abundant raw materials and cost-effectiveness. With the progress of human society, the requirements for energy storage systems in extreme environments, such as deep-sea exploration, aerospace missions, and tunnel operations, have become more stringent. The comprehensive performance of NIBs at low temperatures (LTs) has also become an important consideration. Under LT conditions, challenges such as increased viscosity of electrolyte, abnormal growth of solid electrolyte interface, and poor contact between collector and electrode materials emerge. The aforementioned issues hinder the diffusion kinetics of sodium ions (Na⁺) at the electrode/electrolyte interface and cause rapid degradation of battery performance. Consequently, the optimization of electrolyte composition and cathode/anode materials becomes an effective approach to improve LT performance. This review discusses the conduction behavior and limiting factors of Na⁺ in both solid electrodes and liquid electrolytes at LT. Furthermore, it systematically reviews the recent research progress of LT NIBs from three aspects: cathode materials, anode materials, and electrolyte components. This review aims to provide a valuable reference for developing high-performance LT NIBs.

在电化学储能领域，钠离子电池（NIB）以其丰富的原材料和成本效益成为锂离子电池的理想替代品。随着人类社会的进步，深海探测、航天任务、隧道作业等极端环境对储能系统的要求越来越严格。NIB 在低温条件下的综合性能也成为一个重要的考虑因素。在低温条件下，会出现电解质粘度增加、固体电解质界面异常生长、集电极和电极材料接触不良等挑战。上述问题阻碍了钠离子（Na+）在电极/电解质界面的扩散动力学，并导致电池性能迅速下降。因此，优化电解质成分和阴极/阳极材料成为提高 LT 性能的有效方法。本综述讨论了固态电极和液态电解质中 Na+ 在低温下的传导行为和限制因素。此外，它还从阴极材料、阳极材料和电解质成分三个方面系统地综述了近来有关低温无损探伤的研究进展。本综述旨在为开发高性能低温无离子电极提供有价值的参考。

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引用次数: 0

Enhancement of the performance of Ge–air batteries under high temperatures using conductive MOF-modified Ge anodes 利用导电 MOF 改性 Ge 阳极提高高温下 Ge-air 电池的性能

IF 20.5 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Energy

Pub Date : 2024-08-13 DOI: 10.1002/cey2.580

Yuhang Zhang, Ya Han, Fengjun Deng, Tingyu Zhao, Ze Liu, Dongxu Wang, Jinlong Luo, Yingjian Yu

Germanium (Ge)–air batteries have gained significant attention from researchers owing to their high power density and excellent safety. However, self-corrosion and surface passivation issues of Ge anode limit the development of high-performance Ge–air batteries. In this study, conductive metal-organic framework (MOF) Ni₃(HITP)₂ material was synthesized by the gas–liquid interface approach. The Ni₃(HITP)₂ material was deposited on the surface of the Ge anode to prevent corrosion and passivation reactions inside the battery. At 16°C, the discharge time of Ge anodes protected with MOFs was extended to 59 h at 195 μA cm⁻², which was twice that of bare Ge anodes. The positive effect of MOFs on Ge–air batteries at high temperatures was observed for the first time. The Ge@Ni₃(HITP)₂ anodes discharged over 600 h at 65.0 μA cm⁻². The experimental results confirmed that the two-dimensional conductive MOF material effectively suppressed the self-corrosion and passivation on Ge anodes. This work provides new ideas for improving the performance of batteries in extreme environments and a new strategy for anode protection in air batteries.

锗（Ge）-空气电池因其高功率密度和出色的安全性而备受研究人员的关注。然而，Ge 阳极的自腐蚀和表面钝化问题限制了高性能 Ge 空气电池的发展。本研究采用气液界面法合成了导电金属有机框架（MOF）Ni3(HITP)2 材料。Ni3(HITP)2 材料沉积在 Ge 阳极表面，以防止电池内部发生腐蚀和钝化反应。在 16°C 温度条件下，195 μA cm-2 的放电时间延长至 59 h，是裸 Ge 阳极的两倍。这是首次观察到 MOFs 在高温下对 Ge-air 电池的积极作用。Ge@Ni3(HITP)2 阳极在 65.0 μA cm-2 下放电超过 600 小时。实验结果证实，二维导电 MOF 材料有效抑制了 Ge 阳极的自腐蚀和钝化。这项工作为提高电池在极端环境下的性能提供了新思路，也为空气电池的阳极保护提供了新策略。

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引用次数: 0

Novel cable-like tin@carbon whiskers derived from the Ti2SnC MAX phase for ultra-wideband electromagnetic wave absorption 由 Ti2SnC MAX 相衍生出的用于吸收超宽带电磁波的新型电缆状锡@碳晶须

IF 20.5 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Energy

Pub Date : 2024-08-07 DOI: 10.1002/cey2.638

Feiyue Hu, Pei Ding, Fushuo Wu, Peigen Zhang, Wei Zheng, Wenwen Sun, Rui Zhang, Longzhu Cai, Bingbing Fan, ZhengMing Sun

One-dimensional (1D) metals are well known for their exceptional conductivity and their ease of formation of interconnected networks that facilitate electron migration, making them promising candidates for electromagnetic (EM) attenuation. However, the impedance mismatch from high conductivity and their singular mode of energy loss hinder effective EM wave dissipation. Construction of cable structures not only optimizes impedance matching but also introduces a multitude of heterojunctions, increasing attenuation modes and potentially enhancing EM wave absorption (EMA) performance. Herein, we showcase the scalable synthesis of tin (Sn) whiskers from a Ti₂SnC MAX phase precursor, followed by creation of a 1D tin@carbon (Sn@C) cable structure through polymerization of PDA on their surface and annealing in argon. The EMA capabilities of Sn@C significantly surpass those of uncoated Sn whiskers, with an effective absorption bandwidth reaching 7.4 GHz. Remarkably, its maximum radar cross section reduction value of 27.85 dB m² indicates its exceptional stealth capabilities. The enhanced EMA performance is first attributed to optimized impedance matching, and furthermore, the Sn@C cable structures have rich SnO₂/C and Sn/SnO₂ heterointerfaces and the associated defects, which increase interfacial and defect-induced polarization losses, as visually demonstrated by off-axis electron holography. The development of the Sn@C cable structure represents a notable advancement in broadening the scope of materials with potential applications in stealth technology, and this study also contributes to the understanding of how heterojunctions can improve EMA performance.

众所周知，一维（1D）金属具有超强的导电性，并且易于形成相互连接的网络，从而促进电子迁移，使其成为电磁衰减的理想候选材料。然而，高导电性带来的阻抗失配及其单一的能量损耗模式阻碍了电磁波的有效消散。构建电缆结构不仅能优化阻抗匹配，还能引入大量异质结，从而增加衰减模式，并有可能提高电磁波吸收（EMA）性能。在此，我们展示了利用 Ti2SnC MAX 相前驱体合成锡（Sn）晶须的可扩展性，然后通过在其表面聚合 PDA 并在氩气中退火来创建一维锡@碳（Sn@C）电缆结构。锡@碳的 EMA 能力大大超过了无涂层锡晶须，其有效吸收带宽达到 7.4 GHz。值得注意的是，其最大雷达截面降低值为 27.85 dB m2，这表明它具有卓越的隐身能力。EMA 性能的提高首先归功于阻抗匹配的优化，此外，Sn@C 电缆结构具有丰富的 SnO2/C 和 Sn/SnO2 异质界面及相关缺陷，这增加了界面和缺陷引起的极化损耗，离轴电子全息图可以直观地证明这一点。Sn@C 电缆结构的开发标志着在扩大隐形技术潜在应用材料范围方面取得了显著进展，这项研究还有助于人们了解异质结如何改善 EMA 性能。

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引用次数: 0

Perovskite oxides as electrocatalysts for water electrolysis: From crystalline to amorphous 作为水电解电催化剂的包晶体氧化物：从晶体到非晶体

IF 20.5 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Energy

Pub Date : 2024-08-02 DOI: 10.1002/cey2.595

Hainan Sun, Xiaomin Xu, Gao Chen, Zongping Shao

Crystalline perovskite oxides are regarded as promising electrocatalysts for water electrolysis, particularly for anodic oxygen evolution reactions, owing to their low cost and high intrinsic activity. Perovskite oxides with noncrystalline or amorphous characteristics also exhibit promising electrocatalytic performance toward electrochemical water splitting. In this review, a fundamental understanding of the characteristics and advantages of crystalline, noncrystalline, and amorphous perovskite oxides is presented. Subsequently, recent progress in the development of advanced electrocatalysts for water electrolysis by engineering and breaking the crystallinity of perovskite oxides is reviewed, with a special focus on the underlying structure–activity relationships. Finally, the remaining challenges and unsolved issues are presented, and an outlook is briefly proposed for the future exploration of next-generation water-splitting electrocatalysts based on perovskite oxides.

晶体包晶氧化物因其低成本和高内在活性，被认为是很有前途的水电解电催化剂，特别是在阳极氧进化反应中。具有非晶或无定形特征的包晶氧化物在电化学水分离方面也表现出良好的电催化性能。本综述介绍了对晶体、非晶和非晶包晶氧化物特性和优势的基本认识。随后，综述了通过工程设计和破坏包晶石氧化物的结晶性来开发先进电解水电催化剂的最新进展，并特别关注了基本的结构-活性关系。最后，介绍了尚存在的挑战和未解决的问题，并简要展望了基于包晶石氧化物的下一代水分离电催化剂的未来探索。

引用次数: 0

A facile ice-templating-induced puzzle coupled with carbonization strategy for kilogram-level production of porous carbon nanosheets as high-capacity anode for lithium-ion batteries 一种简便的冰雏形诱导拼图和碳化策略，用于生产公斤级多孔碳纳米片，作为锂离子电池的高容量负极

IF 20.5 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Energy

Pub Date : 2024-08-02 DOI: 10.1002/cey2.633

Baolin Xing, Feng Shi, Zhanzhan Jin, Huihui Zeng, Xiaoxiao Qu, Guangxu Huang, Chuanxiang Zhang, Yunkai Xu, Zhengfei Chen, Jun Lu

Two-dimensional porous carbon nanosheets (PCNSs) are considered promising anodes for lithium-ion batteries due to their synergetic features arising from both graphene and porous structures. Herein, using naturally abundant and biocompatible sodium humate (SH) as the precursor, PCNSs are prepared from the laboratory scale up to the kilogram scale by a method of a facile ice-templating-induced puzzle coupled with a carbonization strategy. Such obtained SH-derived PCNSs (SH-PCNSs) possess a hierarchical porous structure dominated by mesopores having a specific surface area (~127.19 ² g⁻¹), pore volume (~0.134 cm³ g⁻¹), sheet-like morphology (~2.18 nm in thickness), and nitrogen/oxygen-containing functional groups. Owing to these merits, the SH-PCNSs present impressive Li-ion storage characteristics, including high reversible capacity (1011 mAh g⁻¹ at 0.1 A g⁻¹), excellent rate capability (465 mAh g⁻¹ at 5 A g⁻¹), and superior cycle stability (76.8% capacitance retention after 1000 cycles at 5 A g⁻¹). It is noted that the SH-PCNSs prepared from the kilogram-scale production procedure possess comparable electrochemical properties. Furthermore, coupling with a LiNi_1/3Co_1/3Mn_1/3O₂ cathode, the full cells deliver a high capacity of 167 mAh g⁻¹ at 0.2 A g⁻¹ and exhibit an outstanding energy density of 128.8 Wh kg⁻¹, highlighting the practicability of this porous carbon nanosheets and the potential commercial opportunity of the scalable processing approach.

二维多孔碳纳米片（PCNSs）因其石墨烯和多孔结构的协同特性而被认为是锂离子电池的理想阳极。本文以天然丰富且具有生物相容性的腐植酸钠（SH）为前驱体，通过简便的冰诱导拼图法和碳化策略，制备出从实验室规模到公斤级的 PCNS。这种由 SH 衍生的 PCNSs（SH-PCNSs）具有分层多孔结构，以中孔为主，具有比表面积（约 127.19 2 g-1）、孔体积（约 0.134 cm3 g-1）、片状形态（厚度约 2.18 nm）和含氮/氧官能团。由于这些优点，SH-PCNS 具有令人印象深刻的锂离子存储特性，包括高可逆容量（0.1 A g-1 时为 1011 mAh g-1）、出色的速率能力（5 A g-1 时为 465 mAh g-1）和卓越的循环稳定性（5 A g-1 时循环 1000 次后电容保持率为 76.8%）。值得注意的是，通过公斤级生产程序制备的 SH-PCNS 具有类似的电化学特性。此外，与 LiNi1/3Co1/3Mn1/3O2 阴极耦合后，全电池在 0.2 A g-1 的条件下可提供 167 mAh g-1 的高容量，并表现出 128.8 Wh kg-1 的出色能量密度，这凸显了这种多孔碳纳米片的实用性以及可扩展加工方法的潜在商业机会。

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引用次数: 0

Synergistic modulation of valence state and oxygen vacancy induced by surface reconstruction of the CeO2/CuO catalyst toward enhanced electrochemical CO2 reduction CeO2/CuO 催化剂表面重构诱导的价态和氧空位协同调控可增强二氧化碳的电化学还原能力

IF 20.5 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Energy

Pub Date : 2024-08-02 DOI: 10.1002/cey2.588

Fangfang Chang, Zhenmao Zhang, Yan Zhang, Yongpeng Liu, Lin Yang, Xiaolei Wang, Zhengyu Bai, Qing Zhang

Electrochemical CO₂ reduction reaction (CO₂RR) offers a promising strategy for CO₂ conversion into value-added C₂₊ products and facilitates the storage of renewable resources under comparatively mild conditions, but still remains a challenge. Herein, we propose the strategy of surface reconstruction and interface integration engineering to construct tuneable Cu⁰–Cu⁺–Cu²⁺ sites and oxygen vacancy oxide derived from CeO₂/CuO nanosheets (OD-CeO₂/CuO NSs) heterojunction catalysts and promote the activity and selectivity of CO₂RR. The optimized OD-CeO₂/CuO electrocatalyst shows the maximum Faradic efficiencies for C₂₊ products in the H-type cell, which reaches 69.8% at −1.25 V versus a reversible hydrogen electrode (RHE). Advanced characterization analysis and density functional theory (DFT) calculations further confirm the fact that the existence of oxygen vacancies and Cu⁰–Cu⁺–Cu²⁺ sites modified with CeO₂ is conducive to CO₂ adsorption and activation, enhances the hydrogenation of *CO to *CHO, and further promotes the dimerization of *CHO, thus promoting the selectivity of C₂₊ generation. This facile interface integration and surface reconstruction strategy provides an ideal strategy to guide the design of CO₂RR electrocatalysts.

电化学二氧化碳还原反应（CO2RR）为将二氧化碳转化为高附加值的 C2+ 产品提供了一种前景广阔的策略，并有助于在相对温和的条件下储存可再生资源，但这仍然是一项挑战。在此，我们提出了表面重构和界面整合工程的策略，以构建可调的 Cu0-Cu+-Cu2+ 位点和源于 CeO2/CuO 纳米片的氧空位氧化物（OD-CeO2/CuO NSs）异质结合催化剂，并提高 CO2RR 的活性和选择性。优化的 OD-CeO2/CuO 电催化剂在 H 型电池中显示出最大的 C2+ 产物法拉第效率，与可逆氢电极 (RHE) 相比，在 -1.25 V 时达到 69.8%。先进的表征分析和密度泛函理论（DFT）计算进一步证实，CeO2修饰的氧空位和Cu0-Cu+-Cu2+位点的存在有利于二氧化碳的吸附和活化，增强了*CO向*CHO的氢化，并进一步促进了*CHO的二聚化，从而提高了C2+生成的选择性。这种简便的界面整合和表面重构策略为 CO2RR 电催化剂的设计提供了理想的指导策略。

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引用次数: 0

Cover Image, Volume 6, Number 7, July 2024 封面图片，第 6 卷第 7 号，2024 年 7 月

IF 19.5 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Energy

Pub Date : 2024-07-29 DOI: 10.1002/cey2.644

Jeong Seok Yeon, Sul Ki Park, Shinik Kim, Santosh V. Mohite, Won Il Kim, Gun Jang, Hyun-Seok Jang, Jiyoung Bae, Sang Moon Lee, Won G. Hong, Byung Hoon Kim, Yeonho Kim, Ho Seok Park

Front cover image: Rechargeable zinc-ion batteries (ZIBs) have received much attention because they are cheaper and safer than Li metals. However, the introduction of strong adhesives (i.e. binders) between electrodes and current collectors leads to capacity decay and lower rate capability due to their electrochemical inactivity and low electrical conductivity. This work reports flexible ZIBs without binder- and conductive agent-free pyroprotein-based fibres/VO₂ electrodes. These ZIBs offer application possibilities for portable and wearable power sources. cey2.469.

封面图片：可充电锌离子电池（ZIB）因比锂金属更便宜、更安全而备受关注。然而，在电极和集流器之间引入强粘合剂（即粘结剂）会导致容量衰减，并因其电化学不活跃和导电率低而降低速率能力。这项工作报告了不含粘合剂和导电剂的柔性 ZIB（基于烟蛋白的纤维/VO2 电极）。这些 ZIB 为便携式和可穿戴式电源提供了应用可能性。

引用次数: 0