主要從事介觀材料相變熱力學，材料表/界面科學，功能金屬基複合物的制備及應用研究。在Nature Nanotechnol., Nature Mater., Nature Commun., Adv. Mater., Adv. Sci., Adv. Energy Mater., Adv. Funct. Mater., ACS Nano等SCI學術期刊上發表學術論文60餘篇和受邀撰寫外文書章節2章。SCI他引3200餘次，單篇最高引用1000餘次。H = 25。獲授權美國和日本專利各1件、中國國家發明專利4件。
https://scholar.google.com/citations?user=akkjuuQAAAAJ&hl=zh-CN

10篇代表性論文：
(1). X.Y. Lang, A. Hirata, T. Fujita, M.W. Chen*, Nanoporous Metal/Oxide Hybrid Electrodes for Electrochemical Supercapacitors, Nature Nanotechnology 7 (2011) 232-236.
[Selected one of favorite figures from the Letters and Articles that are published since the launch of Nature Nanotechnology, please see Feature: Ten years in images, Nature Nanotechnology 11 (2016) 836-840]

(2). X.Y. Lang, H.Y. Fu, C. Hou, G.F. Han, P. Yang, Y.B. Liu, Q. Jiang*, Nanoporous Gold Supported Cobalt Oxide Microelectrodes for High-performance Electrochemical Biosensors, Nature Communications 4,2169 (2013).

(3). B.T. Liu, X.M. Shi, X.Y. Lang*, L. Gu, Z. Wen, M. Zhao, J.C. Li, Q Jiang*, Extraordinary Pseudocapacitive Energy Storage Triggered by Phase Transformation in Hierarchical Vanadium Oxides, Nature Communications 9 (2018) doi: 10.1038/s41467-018-03700-3.

(4). Y. Yu*, L. Gu*, X.Y. Lang*, C.B. Zhu, M.W. Chen, J. Maier, Li Storage in Three-dimensional (3D) Nanoporous Au-supported Nanocrystalline Tin, Advanced Materials 23 (2011) 2443-2447.

(5). X.Y. Lang, B.T. Liu, X.M. Shi, Y.Q. Li, Z. Wen, Q. Jiang*, Ultrahigh-power Pseudocapacitors Based on Ordered Nanoporous Heterostructures of Electron-correlated Oxides, Advanced Science 3,1500319 (2016).
https://www.materialsviewschina.com/2016/02/based-on-three-dimensional-heterostructures-of-strongly-correlated-electron-oxides-of-high-power-pseudo-capacitor/

(6). X.Y. Lang, T. Fujita, A. Hirata, M.W. Chen*, Three-dimensional Hierarchical Nanoporosity for Ultrahigh Power and Excellent Cyclability of Electrochemical Pseudocapacitors, Advanced Energy Materials 4, 1301809 (2014).

(7). X.Y. Lang, G.F. Han, B.B. Xiao, L. Gu, Z.Z. Yang, Z. Wen, Y.F. Zhu, M. Zhao, J.C. Li, Q. Jiang*, Mesostructured Intermetallic Compounds of Platinum and Non-transition Metals for Enhanced Electrocatalysis of Oxygen Reduction Reaction, Advanced Functional Materials 25, 230-237 (2015).

(8). Y.Q. Li, X.M. Shi, X.Y. Lang*, Z. Wen, J.C. Li, Q. Jiang*, Remarkably Improving Volumetric Energy and Power of 3D MnO2 Microsupercapacitors by Tuning Crystallographic Structures, Advanced Functional Materials 26, 1830-1839(2016).

(9). Y.Q. Li, J.C. Li, X.Y. Lang*, Z. Wen, W.T. Zheng, Q. Jiang*, Lithium Ion Breathable Electrodes with 3D Hierarchical Architecture for Ultra-stable and High-capacity Lithium Storage, Advanced Functional Materials 27, 1700447 (2017).

(10). J.S. Sun, Z. Wen, L.P. Han, Z.W. Chen, X.Y. Lang*, Q. Jiang*, Non-precious Intermetallic Al7Cu4Ni Nanocrystals Seamlessly Integrated in Free-standing Bimodal Nanoporous Copper for Efficient Hydrogen Evolution Catalysis, Advanced Functional Materials 28, 1706127 (2018).

(* corresponding authors)

授權發明專利：
(1). 郎興友，侯超，趙琳琳，文子，朱永福，趙明，李建忱，蔣青，無縫集成的金屬基底/納米多孔金屬/金屬氧化物複合電極材料的制備方法和應用，專利号：ZL201310192869.6.

(2). 郎興友，韓高峰，李苗苗，肖蓓蓓，文子，朱永福，趙明，李建忱，蔣青，雙模式介孔鉑與非過渡族金屬的金屬間化合物催化劑的制備方法及其應用，專利号：ZL201410114575.6.

(3). 郎興友，韓高峰，程拓，文子，朱永福，趙明，李建忱，蔣青，過渡族金屬摻雜Pt-Al金屬間化合物形成雙模式孔三元合金的制備方法及應用, 專利号：ZL 2015 1 0812116.X

(4). 郎興友，劉博天，文子，朱永福，趙明，李建忱，蔣青，一種基于強關聯氧化物複合電極材料的超級電容器，專利号：ZL 2015 1 0272144.7
(5). 陳明偉，郎興友，藤田武志，Nanoporous ceramic composite metal, 美國專利, Patent number: US9336958B2.

(6). 陳明偉，郎興友，藤田武志，納米多孔金屬/氧化物無電電鍍制備方法及其超級電容器和锂離子電池, 日本專利, 專利号：6019533