ACS APPLIED ENERGY MATERIALS 是一本跨学科期刊，发表原创研究，涵盖与能量转换和存储相关的材料、工程、化学、物理和生物学的各个方面。该杂志致力于报道应用性质的新的和原创的实验和理论研究，将材料、工程、物理、生物科学和化学领域的知识整合到重要的能源应用中。

ACS Applied Energy Materials is an interdisciplinary journal dedicated to publishing original research covering all aspects of materials, engineering, chemistry, physics, and biology related to energy conversion and storage. The journal aims to report new and original experimental and theoretical studies that integrate knowledge from materials, engineering, physics, biological sciences, and chemistry into significant energy applications.

《ACS Applied Energy Materials》是一本跨学科的期刊，专注于发表与能量转换和存储相关的材料、工程、化学、物理和生物学各个方面的原创研究。该期刊致力于报道新的和原创的实验与理论研究，整合材料、工程、物理、生物科学和化学领域的知识，以推动重要的能源应用。

ACS Applied Energy Materials

Nanofluidic hybrid membranes integrated with asymmetrical surface charge, chemical composition, and geometric configuration exhibit unprecedented advantages in capturing the osmotic energy between river water and seawater. However, the output power is very restricted by the inefficient interfacial ion transport of the permselective membranes caused by the low-density pores and mismatch of the pore alignment. In this work, we developed a nanofluidic hybrid membrane constructed by ultrahigh pore-density covalent organic frameworks COF-LZU1 (Lan Zhou University-1) with the carbon nanotube/cellulose nanofiber (CNT-CNF) membrane. The COF-LZU1 layer possesses well-ordered and high-density pores, ensuring abundant selective ion transport. The CNT-CNF membrane functions as a robust support and also offers 3D charged space for the enhanced ion transport. The hybridization of the two layers dramatically increases the interfacial ion transport efficiency. Employing the COF-LZU1@CNT-CNF nanofluidic hybrid membrane to capture the osmotic energy stored between natural sea water and river water, a considerably high power density of 4.26 W m–2 is attained. This delicate design strategy offers ideas for the application of COF membranes in osmotic energy conversion.

Ruirui Li

Jin Zhai

Jiaqiao Jiang

Qiang Wang

Shuguang Wang

Improved Interfacial Ion Transport through Nanofluidic Hybrid Membranes Based on Covalent Organic Frameworks for Osmotic Energy Generation

Ammonia (NH3), which is an indispensable chemical, is produced by the Haber–Bosch process using H2 and N2 under severe reaction conditions. Although photocatalytic N2 fixation with water under ambient conditions is ideal, all previously reported catalysts show low efficiency. Here, we report that a metal-free organic semiconductor could provide a new basis for photocatalytic N2 fixation. We show that phosphorus-doped carbon nitride containing surface nitrogen vacancies (PCN-V), prepared by simple thermal condensation of the precursors under H2, produces NH3 from N2 with water under visible light irradiation. The doped P atoms promote water oxidation by the photoformed valence-band holes, and the N vacancies promote N2 reduction by the conduction-band electrons. These phenomena facilitate efficient N2 fixation with a solar-to-chemical conversion (SCC) efficiency of 0.1%, which is comparable to the average solar-to-biomass conversion efficiency of natural photosynthesis by typical plants. Thus, this metal-free catalyst shows considerable potential as a new method of artificial photosynthesis.

Yasuhiro Shiraishi

Shingo Shiota

Yusuke Kofuji

Masaki Hashimoto

Kiyomichi Chishiro

Hiroaki Hirakawa

Shunsuke Tanaka

Satoshi Ichikawa

Takayuki Hirai

Nitrogen Fixation with Water on Carbon-Nitride-Based Metal-Free Photocatalysts with 0.1% Solar-to-Ammonia Energy Conversion Efficiency

基于碳氮化物的无金属光催化剂在水中固氮，太阳能转化为氨的能量转换效率为0.1%

Lei Huang

Changjun Liu

Lei Bao

Yu Chen

Yinghao Jiang

Xucheng Fu

ACS Appl. Energy Mater.

Large Scalable Preparation of Ti-Doped Na4Fe3(PO4)2P2O7 as Cathode Material for High Rate and Long-Life Sodium-Ion Batteries

Metal oxides have been of great importance to the development of energy conversion and storage technologies including heterojunction solar cells, Li-ion batteries, and electrocatalysts/photocatalysts for water splitting and CO2 reduction. The role of metal oxides in these devices has been diverse, from charge transport layers to catalytic surfaces to protective blocking layers. Understanding the fundamental structural and electronic properties of these materials will continue to allow for advancement in the field of renewable energy. Electrochemical impedance spectroscopy (EIS) is one of the most utilized methods to characterize these electrodes in the context of energy applications. The utility of EIS stems from its ability to differentiate multiple interfaces (i.e., solid/electrolyte, solid/solid) within devices on the basis of their frequency response to a modulated potential and the subsequent decoupling of resistive and capacitive circuit components. In this review, the fundamental theory of EIS is first described with a physical and mathematical basis, followed by a discussion of equivalent circuit modeling. The review then covers examples from the literature where EIS has been particularly important in the understanding of electronic properties related to metal oxide electrodes within energy conversion and storage devices. A specific focus is placed on metal oxides that are used as heterojunction solar cells, ion batteries, and photocatalysts/electrocatalysts. Common themes are discussed within each application such as the study of electron and hole diffusion in solar cells, the dependence of recombination reactions and catalysis on surface defect/trap states for solar cells and photocatalysts, and the formation of passivation layers at the solid electrolyte interface in Li-ion batteries.

Alexandria R. C. Bredar

Amanda L. Chown

Andricus R. Burton

Byron H. Farnum

Electrochemical Impedance Spectroscopy of Metal Oxide Electrodes for Energy Applications

用于能源应用的金属氧化物电极的电化学阻抗谱研究

We report on the fabrication of cobalt carbide (Co3C) particles via a wet-chemical synthetic procedure and also describe their electrochemical oxidation to amorphous Co oxide particles that can be used as oxygen evolution reaction (OER) catalysts. Metal chalcogenide, carbide, and pnictide materials have been investigated recently, but there is some controversy regarding the composition of the actual electrocatalytic material. Carbides, in particular, have not been heavily studied as OER catalysts, and their catalytic nature is still an open question. In an effort to contribute to the clarification of the catalytic particle composition during OER, we have thoroughly characterized the elemental composition of the cobalt carbide particles at various times during OER testing and found that the particles are first converted to a transitory core–shell structure (Co3C core–amorphous Co oxide shell) followed by the gradual but complete conversion to an amorphous Co oxide particle during additional electrochemical OER testing. This amorphous Co oxide particle (derived from Co3C) maintains the shape of the original parent Co3C particle and exhibits a high electrochemically active surface area (ECSA). Moreover, the amorphous Co oxide particle derived from Co3C shows a higher geometric OER activity than either commercial Co oxide particles or Co3C–CoOx core–shell particles. We also observe that the fully oxidized Co3C shows the same intrinsic activity as commercial Co oxide particles when normalized by the ECSA. Accordingly, the amorphous Co oxide particles produced from Co3C possesses a porous nanostructure capable of electrocatalytically oxidizing water within the internal pores of the particles.

Jun-Hyuk Kim

Kenta Kawashima

Bryan R. Wygant

Oluwaniyi Mabayoje

Yang Liu

Joy H. Wang

C. Buddie Mullins

Transformation of a Cobalt Carbide (Co3C) Oxygen Evolution Precatalyst

钴碳化物（Co3C）析氧预催化剂的转化

Jian He

Shihan Qi

Hui Wang

Jianmin Ma

Nongnuch Artrith

Highly Antioxidative Lithium Salt Enables High-Voltage Ether Electrolyte for Lithium Metal Battery

高抗氧化性锂盐助力高电压醚类电解质用于锂金属电池

Yasser Matos-Peralta

Zhaojing Gao

Fabio Mocerino

Clara Santato

Polyphenols on Carbon Paper Electrodes: A Fundamental Study for Sustainable Electrochemical Energy Storage

碳纸电极上的多酚：可持续电化学储能的基础研究

Cathodes containing Ni, Co, and Mn frequently undergo side reactions with the electrolyte during the long cycles of the battery in traditional electrolytes under high voltage. In this work, an efficient composite cathode–electrolyte interface (CEI) film is constructed in situ with two additives; that is, 2-[(trimethylsilyl)ethynyl]thiophene (TET) is oxidized and polymerized in advance to form a film attached to the cathode surface, while oxidation products of bis(pinacolato)diboron (BDB) as a high ion conductor are doped into the TET polymer film. The combination of the oxidation products of the two additives not only effectively isolates solvent molecules and hydrofluoric acid erosion, preventing the occurrence of side reactions, but also does not affect the transfer of lithium ions. The crystal structure stability of LiNi0.8Mn0.1Co0.1O2 (NCM811) could be effectively regulated by the composite CEI film through in situ X-ray diffraction characterization during the charge–discharge process. The dynamic performance of the battery has also been improved by comparing the discrepancy of pseudocapacitance across the battery with different electrolytes. Furthermore, the solid–electrolyte interface film formed by TET and BDB could provide effective protection for lithium metal from electrolyte corrosion and inhibit the formation of lithium dendrites. Therefore, the battery capacity retention rate could reach 91.12% after 300 cycles. In addition, the battery with a high-load cathode (2.52 mAh cm–2) has a capacity retention rate of up to 90.19% after 50 cycles, which may make the future application of pouch batteries more feasible.

Jian Lv

Zhuyu Wang

Yihuan Zhou

Yiwen Wang

Danni Shen

Qinggong Jia

Stabilizing the LiNi0.8Mn0.1Co0.1O2 Interface with an In Situ Constructed Composite Film for a Lithium Metal Battery under High Voltage

高电压锂金属电池中通过原位构建复合膜稳定LiNi0.8Mn0.1Co0.1O2界面

The challenge of dendrite growth is a formidable obstacle that leads to short circuits when charging lithium (Li)-metal batteries. Implementing patterns with various pit structures on Li metal proves to be an effective strategy to alleviate dendrite growth. Nonetheless, the growth mechanism of Li dendrites near pits is still under debate, making it difficult to accurately propose patterns to enhance the stability of the Li metal. In this study, the growth mechanism of dendrites near the pits is successfully clarified for the first time using the in situ optical microscopy method and electrochemical modeling. A direct correlation is established between the formation of Li dendrites and factors. Areas with heightened electric field strength and localized current density are more susceptible to dendrite formation. Increased local surface roughness promotes dendrite nucleation and growth. Dendrite growth at the edge of pits leads to an insufficient supply of Li ions in the pit, thereby inhibiting dendrite formation inside the pit. By optimization of the pattern structure, the density of Li deposition can be significantly improved. The results provide a promising and practical approach to ensure safety and extend the lifetime of Li metal batteries.

Li Ting Gao

Bin Jiang

Qianyi Ma

Zhan-Sheng Guo

To Be or Not to Be: Dendrite Growth Mechanism Adjacent to Pits for High Stability of Lithium Metal Anode

是或不是：高稳定性锂金属阳极中邻近凹坑的枝晶生长机制

Ambient pressure X-ray photoelectron spectroscopy is employed to study in real time the chemical reactions occurring on (Ag,Cu)(In,Ga)Se2 (ACIGSe) surfaces during the first atomic layer deposition (ALD) cycle of HfOx under realistic synthesis conditions by using tetrakisdimethylamido-hafnium (TDMA-Hf) and H2O precursors. We find that the initial deposition due to surface reactions of HfOx ALD on ACIGSe depends on the pretreatment of the ACIGSe surface. While the growth of HfOx occurs directly upon exposure to the metal precursor for the nontreated (i.e., as-deposited) ACIGSe surface through chemical reactions, the growth is slower for the ACIGSe surface pretreated by postdeposition treatment by RbF. In the latter case, the diffusion of alkali and fluorine elements at the surface is observed during the ALD growth, thus leaving less reactive sites for the TDMA-Hf molecules to adsorb on. The results indicate that an optimization of the ALD of HfOx on ACIGSe needs to be taken into consideration for alkali metal fluoride-treated ACIGSe.

Natalia M. Martin

Melike Babucci

Lars Stolt

Adam Hultqvist

Esko Kokkonen

Rainer Timm

Joachim Schnadt

Charlotte Platzer-Björkman

Tobias Törndahl

In Situ Studies of Atomic Layer Deposition of Hafnium Oxide on (Ag,Cu)(In,Ga)Se2 for Thin Film Solar Cells

原位研究用于薄膜太阳能电池的(Ag,Cu)(In,Ga)Se2上氧化铪的原子层沉积

Abbreviation	ACS Appl. Energy Mater.
Journal Impact	5.25
Quartiles(Global)	MATERIALS SCIENCE, MULTIDISCIPLINARY(Q2)

ISSN	2574-0962
h-index	87

Publication Information	Publisher: American Chemical Society，Publishing cycle: ，Journal Type: journal，Open Access Journals: No
Basic data	Year of publication: 2018，Proportion of original research papers: 98.18%，Self Citation Rate:3.70%， Gold OA Rate: 6.43%

ACS Applied Energy Materials

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Improved Interfacial Ion Transport through Nanofluidic Hybrid Membranes Based on Covalent Organic Frameworks for Osmotic Energy Generation

Nitrogen Fixation with Water on Carbon-Nitride-Based Metal-Free Photocatalysts with 0.1% Solar-to-Ammonia Energy Conversion Efficiency

Large Scalable Preparation of Ti-Doped Na₄Fe₃(PO₄)₂P₂O₇ as Cathode Material for High Rate and Long-Life Sodium-Ion Batteries

Electrochemical Impedance Spectroscopy of Metal Oxide Electrodes for Energy Applications

Transformation of a Cobalt Carbide (Co₃C) Oxygen Evolution Precatalyst

Highly Antioxidative Lithium Salt Enables High-Voltage Ether Electrolyte for Lithium Metal Battery

Polyphenols on Carbon Paper Electrodes: A Fundamental Study for Sustainable Electrochemical Energy Storage

Stabilizing the LiNi_0.8Mn_0.1Co_0.1O₂ Interface with an In Situ Constructed Composite Film for a Lithium Metal Battery under High Voltage

To Be or Not to Be: Dendrite Growth Mechanism Adjacent to Pits for High Stability of Lithium Metal Anode

In Situ Studies of Atomic Layer Deposition of Hafnium Oxide on (Ag,Cu)(In,Ga)Se₂ for Thin Film Solar Cells